Material Density Chart
Density of aluminum, steels, stainless, copper, titanium, plastics, composites, ceramics and rubber in g/cm³, kg/m³, lb/in³ and lb/ft³, with the source of every value. Search by name or by alloy number.
Download
| Material | Family | Common names | g/cm³ | kg/m³ | lb/in³ | lb/ft³ | Source |
|---|---|---|---|---|---|---|---|
| Steel 4130 | Alloy steel | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 4140 | Alloy steel | 42CrMo4 · SCM440 · cromo-molibdeno | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 4340 | Alloy steel | 34CrNiMo6 · SNCM439 | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 52100 | Alloy steel | 100Cr6 · SUJ2 · acero para rodamientos | 7.81 | 7,810 | 0.2822 | 487.6 | ASM Handbook, Vol. 1 (steels) |
| Steel 6150 | Alloy steel | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| Steel 8620 | Alloy steel | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 9840 | Alloy steel | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Aluminum 1100 | Aluminum | — | 2.71 | 2,710 | 0.0979 | 169.2 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 2011 | Aluminum | — | 2.83 | 2,830 | 0.1022 | 176.7 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 2014 | Aluminum | — | 2.80 | 2,800 | 0.1012 | 174.8 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 2024 | Aluminum | AlCu4Mg1 · EN AW-2024 | 2.78 | 2,780 | 0.1004 | 173.5 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 3003 | Aluminum | — | 2.73 | 2,730 | 0.0986 | 170.4 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 5052 | Aluminum | AlMg2.5 · EN AW-5052 | 2.68 | 2,680 | 0.0968 | 167.3 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 5083 | Aluminum | — | 2.66 | 2,660 | 0.0961 | 166.1 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 5086 | Aluminum | — | 2.66 | 2,660 | 0.0961 | 166.1 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 6061-T6 | Aluminum | AlMg1SiCu · EN AW-6061 · UNS A96061 | 2.70 | 2,700 | 0.0975 | 168.6 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 6063 | Aluminum | — | 2.70 | 2,700 | 0.0975 | 168.6 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 6082 | Aluminum | AlSi1MgMn · EN AW-6082 | 2.70 | 2,700 | 0.0975 | 168.6 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 6262 (free-machining) | Aluminum | — | 2.72 | 2,720 | 0.0983 | 169.8 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 7050 | Aluminum | — | 2.83 | 2,830 | 0.1022 | 176.7 | Aluminum Association, Aluminum Standards and Data |
| Aluminum 7075-T6 | Aluminum | AlZn5.5MgCu · EN AW-7075 · UNS A97075 | 2.81 | 2,810 | 0.1015 | 175.4 | Aluminum Association, Aluminum Standards and Data |
| Architectural Bronze (C385) | Brass | — | 8.470 | 8,470 | 0.306 | 528.8 | Copper Development Association (CDA): 0.306 lb/in³ |
| Brass (C360) | Brass | CuZn36Pb3 · CW603N · latón de maquinado libre | 8.498 | 8,498 | 0.307 | 530.5 | Copper Development Association (CDA): 0.307 lb/in³ |
| Cartridge Brass (C260) | Brass | CuZn30 · CW505L · latón de cartucho | 8.525 | 8,525 | 0.308 | 532.2 | Copper Development Association (CDA): 0.308 lb/in³ |
| Naval Brass (C464) | Brass | — | 8.415 | 8,415 | 0.304 | 525.3 | Copper Development Association (CDA): 0.304 lb/in³ |
| Red Brass (C230) | Brass | latón 85-15 | 8.747 | 8,747 | 0.316 | 546.0 | Copper Development Association (CDA): 0.316 lb/in³ |
| Yellow Brass (C272) | Brass | — | 8.470 | 8,470 | 0.306 | 528.8 | Copper Development Association (CDA): 0.306 lb/in³ |
| Bronze (C93200) | Bronze | SAE 660 · bronce para bujes | 8.913 | 8,913 | 0.322 | 556.4 | Copper Development Association (CDA): 0.322 lb/in³ |
| Bronze (C95400) | Bronze | bronce al aluminio | 7.446 | 7,446 | 0.269 | 464.8 | Copper Development Association (CDA): 0.269 lb/in³ |
| Free-cutting Phosphor Bronze (C544) | Bronze | — | 8.885 | 8,885 | 0.321 | 554.7 | Copper Development Association (CDA): 0.321 lb/in³ |
| High-silicon Bronze (C655) | Bronze | — | 8.525 | 8,525 | 0.308 | 532.2 | Copper Development Association (CDA): 0.308 lb/in³ |
| Nickel Aluminum Bronze (C630) | Bronze | — | 7.584 | 7,584 | 0.274 | 473.5 | Copper Development Association (CDA): 0.274 lb/in³ |
| Phosphor Bronze (C510) | Bronze | — | 8.858 | 8,858 | 0.320 | 553.0 | Copper Development Association (CDA): 0.320 lb/in³ |
| Standard Bronze (C84400) | Bronze | — | 8.691 | 8,691 | 0.314 | 542.6 | Copper Development Association (CDA): 0.314 lb/in³ |
| Steel 1008 | Carbon steel | lámina rolada en frío | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (steels) |
| Steel 1010 | Carbon steel | — | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (steels) |
| Steel 1018 | Carbon steel | C18 · S20C · cold rolled | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 1020 | Carbon steel | — | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 1045 | Carbon steel | C45 · S45C | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 1095 | Carbon steel | acero para resortes y cuchillas | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| Steel 1117 | Carbon steel | — | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (steels) |
| Steel 1144 | Carbon steel | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 1215 | Carbon steel | — | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel 12L14 | Carbon steel | 11SMnPb30 · maquinado libre con plomo | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Aluminum A356 (casting) | Cast aluminum | A356-T6 · AlSi7Mg | 2.68 | 2,680 | 0.0968 | 167.3 | ASM Handbook, Vol. 2 (nonferrous alloys) |
| Aluminum A380 (die casting) | Cast aluminum | ADC10 · AlSi8Cu3 | 2.71 | 2,710 | 0.0979 | 169.2 | ASM Handbook, Vol. 2 (nonferrous alloys) |
| Aluminum MIC6 (cast plate) | Cast aluminum | placa de herramental colada | 2.70 | 2,700 | 0.0975 | 168.6 | Arconic (Alcoa), MIC6 plate datasheet |
| Ductile iron 65-45-12 | Cast iron | ASTM A536 · nodular · FCD450 | 7.107.1 to 7.2 by grade | 7,100 | 0.2565 | 443.2 | ASM Handbook, Vol. 1 (cast irons) |
| Gray cast iron class 30 | Cast iron | ASTM A48 · FC200 | 7.157 to 7.3 by grade | 7,150 | 0.2583 | 446.4 | ASM Handbook, Vol. 1 (cast irons) |
| Beryllium Copper (C172) | Copper | CuBe2 · Alloy 25 | 8.249 | 8,249 | 0.298 | 514.9 | Copper Development Association (CDA): 0.298 lb/in³ |
| Copper (C110) | Copper | ETP · Cu-ETP · CW004A | 8.885 | 8,885 | 0.321 | 554.7 | Copper Development Association (CDA): 0.321 lb/in³ |
| Copper (C18200) | Copper | cobre al cromo · CuCr1 | 8.885 | 8,885 | 0.321 | 554.7 | Copper Development Association (CDA): 0.321 lb/in³ |
| Oxygen-free Copper (C101) | Copper | OFE · Cu-OFE · CW009A | 8.941 | 8,941 | 0.323 | 558.1 | Copper Development Association (CDA): 0.323 lb/in³ |
| Tellurium Copper (C14500) | Copper | C145 · maquinado libre | 8.941 | 8,941 | 0.323 | 558.1 | Copper Development Association (CDA): 0.323 lb/in³ |
| Magnesium AZ31B | Magnesium | Mg-3Al-1Zn | 1.77 | 1,770 | 0.0639 | 110.5 | ASM Handbook, Vol. 2 (magnesium) |
| Hastelloy C-276 | Nickel alloys | UNS N10276 · 2.4819 | 8.89 | 8,890 | 0.3212 | 555.0 | Haynes International datasheet |
| Inconel 625 | Nickel alloys | UNS N06625 · 2.4856 | 8.44 | 8,440 | 0.3049 | 526.9 | Special Metals Corporation datasheet |
| Inconel 718 | Nickel alloys | UNS N07718 · 2.4668 | 8.19 | 8,190 | 0.2959 | 511.3 | Special Metals Corporation datasheet |
| Invar 36 | Nickel alloys | FeNi36 · 1.3912 | 8.05 | 8,050 | 0.2908 | 502.5 | Carpenter Technology datasheet |
| Kovar | Nickel alloys | ASTM F15 · sellos vidrio-metal | 8.36 | 8,360 | 0.3020 | 521.9 | Carpenter Technology datasheet |
| Monel 400 | Nickel alloys | UNS N04400 · 2.4360 | 8.80 | 8,800 | 0.3179 | 549.4 | Special Metals Corporation datasheet |
| Nickel 200 / 201 | Nickel alloys | UNS N02200 · níquel comercialmente puro | 8.89 | 8,890 | 0.3212 | 555.0 | Special Metals Corporation datasheet |
| Lead | Pure metal | Pb | 11.3 | 11,300 | 0.4082 | 705.4 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure aluminum | Pure metal | Al · 99.99 % | 2.70 | 2,700 | 0.0975 | 168.6 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure copper | Pure metal | Cu | 8.96 | 8,960 | 0.3237 | 559.4 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure iron | Pure metal | Fe · Armco | 7.87 | 7,870 | 0.2843 | 491.3 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure magnesium | Pure metal | Mg | 1.74 | 1,740 | 0.0629 | 108.6 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure nickel | Pure metal | Ni | 8.90 | 8,900 | 0.3215 | 555.6 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure titanium | Pure metal | Ti | 4.51 | 4,510 | 0.1629 | 281.6 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure zinc | Pure metal | Zn | 7.14 | 7,140 | 0.2579 | 445.7 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Tin | Pure metal | Sn · estaño blanco | 7.26 | 7,260 | 0.2623 | 453.2 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Molybdenum | Refractory and hard metal | Mo | 10.2 | 10,200 | 0.3685 | 636.8 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Pure Tungsten | Refractory and hard metal | W · wolframio | 19.25 | 19,250 | 0.6955 | 1201.7 | ASM Handbook, Vol. 2 (pure metals) |
| Tungsten heavy alloy (90 % W) | Refractory and hard metal | W-Ni-Fe · contrapesos | 17.016.85 to 17.25 by grade | 17,000 | 0.6142 | 1061.3 | ASTM B777 class 1 |
| Duplex Stainless Steel 2205 | Stainless steel | 1.4462 · UNS S32205 · dúplex | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 15-5 PH | Stainless steel | UNS S15500 · XM-12 | 7.80 | 7,800 | 0.2818 | 486.9 | Carpenter Technology datasheet |
| Stainless Steel 17-4 PH | Stainless steel | 1.4542 · UNS S17400 · 630 | 7.78 | 7,780 | 0.2811 | 485.7 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 301 | Stainless steel | 1.4310 · resortes | 8.03 | 8,030 | 0.2901 | 501.3 | ASM Handbook, Vol. 1 (steels) |
| Stainless Steel 303 | Stainless steel | 1.4305 · X8CrNiS18-9 · maquinado libre | 8.00 | 8,000 | 0.2890 | 499.4 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 304 | Stainless steel | 1.4301 / 1.4307 · 18-8 · A2 | 8.00 | 8,000 | 0.2890 | 499.4 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 304L | Stainless steel | 1.4307 · bajo carbono | 8.00 | 8,000 | 0.2890 | 499.4 | ASM Handbook, Vol. 1 (steels) |
| Stainless Steel 316 | Stainless steel | 1.4401 / 1.4404 · A4 · grado marino | 8.00 | 8,000 | 0.2890 | 499.4 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 316L | Stainless steel | 1.4404 · bajo carbono | 8.00 | 8,000 | 0.2890 | 499.4 | ASM Handbook, Vol. 1 (steels) |
| Stainless Steel 321 | Stainless steel | — | 8.00 | 8,000 | 0.2890 | 499.4 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 410 | Stainless steel | — | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 416 | Stainless steel | — | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 420 | Stainless steel | 1.4021 · cuchillería | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 430 | Stainless steel | — | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (wrought stainless steels) |
| Stainless Steel 440C | Stainless steel | 1.4125 · rodamientos y cuchillería | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (steels) |
| Cold-rolled steel (CRS) | Structural steel and plate | 1008 / 1010 / 1018 rolado en frío | 7.87 | 7,870 | 0.2843 | 491.3 | ASM Handbook, Vol. 1 (steels) |
| Galvanized steel G90 | Structural steel and plate | A653 · recubierto de zinc (el zinc no cambia la densidad apreciable) | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| Hot-rolled pickled and oiled steel (HRPO) | Structural steel and plate | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| HSLA steel (A572 / A1011) | Structural steel and plate | alta resistencia baja aleación · Gr. 50 | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| Steel A36 | Structural steel and plate | S235JR · placa estructural | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (carbon and alloy steels) |
| Steel A500 (structural tube) | Structural steel and plate | PTR · HSS | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| Steel A514 (T-1) | Structural steel and plate | — | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (steels) |
| Titanium Grade 1 | Titanium | Ti CP · 3.7025 | 4.51 | 4,510 | 0.1629 | 281.6 | ASM Handbook, Vol. 2 (nonferrous alloys) |
| Titanium Grade 2 | Titanium | Ti CP · 3.7035 · UNS R50400 | 4.51 | 4,510 | 0.1629 | 281.6 | ASM Handbook, Vol. 2 (titanium and titanium alloys) |
| Titanium Grade 23 (Ti-6Al-4V ELI) | Titanium | implantes · bajo intersticial | 4.43 | 4,430 | 0.1600 | 276.6 | ASM Handbook, Vol. 2 (nonferrous alloys) |
| Titanium Grade 5 (Ti-6Al-4V) | Titanium | Ti-6Al-4V · 3.7164 · UNS R56400 | 4.43 | 4,430 | 0.1600 | 276.6 | ASM Handbook, Vol. 2 (titanium and titanium alloys) |
| Tool Steel A2 | Tool steel | 1.2363 · SKD12 | 7.86 | 7,860 | 0.2840 | 490.7 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel D2 | Tool steel | 1.2379 · X153CrMoV12 · SKD11 | 7.70 | 7,700 | 0.2782 | 480.7 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel H13 | Tool steel | 1.2344 · X40CrMoV5-1 · SKD61 | 7.80 | 7,800 | 0.2818 | 486.9 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel M2 | Tool steel | — | 8.16 | 8,160 | 0.2948 | 509.4 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel O1 | Tool steel | — | 7.81 | 7,810 | 0.2822 | 487.6 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel P20 | Tool steel | 1.2311 / 1.2738 · acero para moldes | 7.85 | 7,850 | 0.2836 | 490.1 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel S7 | Tool steel | — | 7.83 | 7,830 | 0.2829 | 488.8 | ASM Handbook, Vol. 1 (tool steels) |
| Tool Steel W1 | Tool steel | — | 7.84 | 7,840 | 0.2832 | 489.4 | ASM Handbook, Vol. 1 (tool steels) |
| Zamak 3 (zinc) | Zinc | ZnAl4 · ASTM AG40A | 6.60 | 6,600 | 0.2384 | 412.0 | ASTM B86 / ASM Handbook, Vol. 2 |
| Zamak 5 (zinc) | Zinc | ZnAl4Cu1 · ASTM AC41A | 6.60 | 6,600 | 0.2384 | 412.0 | ASM Handbook, Vol. 2 (nonferrous alloys) |
| ABS (filament) | 3D printing filament and powder | — | 1.041.03 to 1.07 by grade | 1,040 | 0.0376 | 64.9 | Grade datasheet (ASTM D792) |
| ASA (filament) | 3D printing filament and powder | — | 1.07 | 1,070 | 0.0387 | 66.8 | Grade datasheet (ASTM D792) |
| Carbon-fiber nylon (filament) | 3D printing filament and powder | — | 1.191.15 to 1.25 by grade | 1,190 | 0.0430 | 74.3 | Bambu Lab PAHT-CF / filament datasheets |
| Carbon-fiber PLA (filament) | 3D printing filament and powder | — | 1.261.22 to 1.3 by grade | 1,260 | 0.0455 | 78.7 | Filament datasheets (ISO 1183) |
| PETG (filament) | 3D printing filament and powder | — | 1.27 | 1,270 | 0.0459 | 79.3 | Eastman Spectar (ASTM D792) |
| Photopolymer resin (SLA / DLP) | 3D printing filament and powder | — | 1.171.1 to 1.25 by grade | 1,170 | 0.0423 | 73.0 | Formlabs Standard Resin (cured) |
| PLA (filament) | 3D printing filament and powder | ácido poliláctico | 1.24 | 1,240 | 0.0448 | 77.4 | NatureWorks Ingeo (ASTM D792) |
| Sintered nylon 12 (SLS / MJF) | 3D printing filament and powder | PA 12 en polvo | 0.950.93 to 1.01 by grade | 950 | 0.0343 | 59.3 | HP 3D High Reusability PA 12 / EOS PA 2200 |
| TPU 95A (flexible filament) | 3D printing filament and powder | — | 1.201.19 to 1.22 by grade | 1,200 | 0.0434 | 74.9 | BASF Elastollan / filament datasheets (ISO 1183) |
| FEP | Fluoropolymer | Teflon FEP | 2.152.12 to 2.17 by grade | 2,150 | 0.0777 | 134.2 | Grade datasheet (ASTM D792) |
| PCTFE (Kel-F) | Fluoropolymer | Neoflon · sellos criogénicos | 2.132.1 to 2.17 by grade | 2,130 | 0.0770 | 133.0 | Grade datasheet (ASTM D792) |
| PTFE (Teflon) | Fluoropolymer | Teflon · Fluon | 2.162.14 to 2.2 by grade | 2,160 | 0.0780 | 134.8 | Virgin PTFE (ASTM D792) |
| PVDF | Fluoropolymer | — | 1.781.76 to 1.79 by grade | 1,780 | 0.0643 | 111.1 | Grade datasheet (ASTM D792) |
| PEEK | High-performance plastic | Victrex 450G · Ketron | 1.301.29 to 1.32 by grade | 1,300 | 0.0470 | 81.2 | Victrex PEEK 450G (ISO 1183) |
| PEEK 30% carbon-filled | High-performance plastic | — | 1.40 | 1,400 | 0.0506 | 87.4 | Victrex PEEK 450CA30 (ISO 1183) |
| PET | High-performance plastic | — | 1.381.37 to 1.39 by grade | 1,380 | 0.0499 | 86.2 | Grade datasheet (ASTM D792) |
| Polyamide-imide (Torlon 4203) | High-performance plastic | PAI | 1.42 | 1,420 | 0.0513 | 88.6 | Solvay Torlon 4203 (ASTM D792) |
| Polyimide (Vespel SP-1) | High-performance plastic | PI | 1.43 | 1,430 | 0.0517 | 89.3 | DuPont Vespel SP-1 (ASTM D792) |
| Polysulfone (PSU) | High-performance plastic | — | 1.241.24 to 1.25 by grade | 1,240 | 0.0448 | 77.4 | Grade datasheet (ASTM D792) |
| PPS | High-performance plastic | — | 1.351.34 to 1.36 by grade | 1,350 | 0.0488 | 84.3 | Grade datasheet (ASTM D792) |
| ULTEM (PEI) | High-performance plastic | PEI · ULTEM 1000 | 1.271.27 to 1.28 by grade | 1,270 | 0.0459 | 79.3 | SABIC ULTEM 1000 (ASTM D792) |
| ABS | Thermoplastic | acrilonitrilo-butadieno-estireno | 1.051.03 to 1.07 by grade | 1,050 | 0.0379 | 65.5 | ABS sheet and rod datasheets (ASTM D792) |
| Acetal (Delrin / POM) | Thermoplastic | POM · Delrin · Celcon · Hostaform | 1.411.41 to 1.42 by grade | 1,410 | 0.0509 | 88.0 | Copolymer 1.41 (stock rod); Delrin homopolymer 1.42 (ASTM D792) |
| Acrylic | Thermoplastic | PMMA · Plexiglas · Lucite | 1.191.18 to 1.19 by grade | 1,190 | 0.0430 | 74.3 | Cast PMMA (ASTM D792) |
| Cast polyurethane (90 Shore A) | Thermoplastic | — | 1.201.1 to 1.25 by grade | 1,200 | 0.0434 | 74.9 | Cast urethane manufacturer datasheets |
| CPVC | Thermoplastic | — | 1.551.5 to 1.57 by grade | 1,550 | 0.0560 | 96.8 | Grade datasheet (ASTM D792) |
| HDPE | Thermoplastic | PE-HD · PE-300 | 0.950.94 to 0.97 by grade | 950 | 0.0343 | 59.3 | High-density polyethylene (ASTM D792) |
| High-impact polystyrene (HIPS) | Thermoplastic | — | 1.04 | 1,040 | 0.0376 | 64.9 | Grade datasheet (ASTM D792) |
| LDPE | Thermoplastic | polietileno de baja densidad | 0.920.91 to 0.93 by grade | 920 | 0.0332 | 57.4 | Grade datasheet (ASTM D792) |
| Nylamid (Cast Nylon 6) | Thermoplastic | PA 6 colado · Nylatron · Nylamid | 1.151.15 to 1.16 by grade | 1,150 | 0.0415 | 71.8 | Cast nylon 6 (ASTM D792) |
| Nylon 6/6 | Thermoplastic | PA 66 · extruido | 1.141.13 to 1.15 by grade | 1,140 | 0.0412 | 71.2 | Grade datasheet (ASTM D792) |
| Nylon 6/6 30% glass-filled | Thermoplastic | PA66-GF30 | 1.371.35 to 1.4 by grade | 1,370 | 0.0495 | 85.5 | Grade datasheet (ASTM D792) |
| PETG (sheet and rod) | Thermoplastic | copoliéster | 1.27 | 1,270 | 0.0459 | 79.3 | Eastman Spectar (ASTM D792) |
| Polycarbonate | Thermoplastic | PC · Lexan · Makrolon | 1.201.2 to 1.22 by grade | 1,200 | 0.0434 | 74.9 | Unfilled polycarbonate (ASTM D792) |
| Polypropylene | Thermoplastic | PP · homopolímero | 0.900.9 to 0.91 by grade | 900 | 0.0325 | 56.2 | Polypropylene homopolymer (ASTM D792) |
| Polystyrene (PS) | Thermoplastic | — | 1.051.04 to 1.05 by grade | 1,050 | 0.0379 | 65.5 | Grade datasheet (ASTM D792) |
| PVC | Thermoplastic | PVC rígido tipo I | 1.411.38 to 1.45 by grade | 1,410 | 0.0509 | 88.0 | Rigid PVC Type I (ASTM D792) |
| UHMW-PE | Thermoplastic | UHMWPE · Tivar · PE-1000 | 0.930.93 to 0.94 by grade | 930 | 0.0336 | 58.1 | Virgin UHMW (ASTM D792) |
| Carbon fiber / epoxy (laminate) | Fiber composite | CFRP · placa y tubo de carbono | 1.551.5 to 1.6 by grade | 1,550 | 0.0560 | 96.8 | Unidirectional laminate ~60 % fiber volume (Toray / Hexcel) |
| E-glass / epoxy (laminate) | Fiber composite | GFRP · fibra de vidrio estructural | 1.901.8 to 2 by grade | 1,900 | 0.0686 | 118.6 | Unidirectional laminate ~60 % fiber volume (manufacturer datasheets) |
| Canvas phenolic (CE / C) | Thermoset laminate | baquelita de tela · Micarta | 1.361.33 to 1.37 by grade | 1,360 | 0.0491 | 84.9 | NEMA LI 1 (grade CE) |
| G-10 / FR-4 | Thermoset laminate | Garolite · epoxi-vidrio | 1.851.8 to 1.9 by grade | 1,850 | 0.0668 | 115.5 | Glass-epoxy laminate (NEMA LI 1) |
| G-11 (high-temperature glass epoxy) | Thermoset laminate | — | 1.851.8 to 1.9 by grade | 1,850 | 0.0668 | 115.5 | NEMA LI 1 (grade G-11) |
| Paper phenolic (XX) | Thermoset laminate | — | 1.331.3 to 1.36 by grade | 1,330 | 0.0480 | 83.0 | NEMA LI 1 (grade XX) |
| Isostatic graphite | Carbide and graphite | electrodos de electroerosión | 1.801.75 to 1.92 by grade | 1,800 | 0.0650 | 112.4 | Toyo Tanso / SGL EDM grades |
| Tungsten carbide (6 % Co) | Carbide and graphite | WC-Co · insertos y herramienta | 14.9514.85 to 15.05 by grade | 14,950 | 0.5401 | 933.3 | Kennametal / Sandvik 6 % cobalt grades |
| Borosilicate glass | Glass | — | 2.23 | 2,230 | 0.0806 | 139.2 | Corning 7740 (Pyrex) / Schott Borofloat 33 |
| Alumina 96 % | Technical ceramic | Al₂O₃ · AD-96 · sustratos | 3.72 | 3,720 | 0.1344 | 232.2 | CoorsTek datasheet |
| Alumina 99.5 % | Technical ceramic | Al₂O₃ · AD-995 | 3.89 | 3,890 | 0.1405 | 242.8 | CoorsTek datasheet |
| Macor (machinable glass-ceramic) | Technical ceramic | — | 2.52 | 2,520 | 0.0910 | 157.3 | Corning Macor datasheet |
| Silicon nitride | Technical ceramic | Si₃N₄ · bolas de rodamiento híbrido | 3.253.2 to 3.3 by grade | 3,250 | 0.1174 | 202.9 | CoorsTek datasheet |
| Sintered silicon carbide | Technical ceramic | SiC · SSiC · sellos mecánicos | 3.103.05 to 3.15 by grade | 3,100 | 0.1120 | 193.5 | CoorsTek datasheet |
| Zirconia Y-TZP | Technical ceramic | ZrO₂ estabilizada con itria · 3Y-TZP | 6.056 to 6.1 by grade | 6,050 | 0.2186 | 377.7 | CoorsTek datasheet |
| EPDM | Rubber / elastomer | etileno-propileno · intemperie y vapor | 1.150.9 to 1.3 by grade | 1,150 | 0.0415 | 71.8 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Fluoroelastomer (FKM / Viton) | Rubber / elastomer | Viton A · químicos y combustibles | 1.851.8 to 1.95 by grade | 1,850 | 0.0668 | 115.5 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Natural rubber (NR) | Rubber / elastomer | caucho natural · látex | 0.930.92 to 1 by grade | 930 | 0.0336 | 58.1 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Neoprene (CR) | Rubber / elastomer | policloropreno | 1.251.2 to 1.35 by grade | 1,250 | 0.0452 | 78.0 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Nitrile (NBR / Buna-N) | Rubber / elastomer | sellos y o-rings de uso general | 1.201 to 1.3 by grade | 1,200 | 0.0434 | 74.9 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Polyurethane (AU / EU) | Rubber / elastomer | — | 1.201.1 to 1.3 by grade | 1,200 | 0.0434 | 74.9 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Silicone (VMQ) | Rubber / elastomer | grado alimenticio y alta temperatura | 1.201.1 to 1.5 by grade | 1,200 | 0.0434 | 74.9 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Styrene-butadiene rubber (SBR) | Rubber / elastomer | Buna-S | 0.940.93 to 1.1 by grade | 940 | 0.0340 | 58.7 | Parker O-Ring Handbook, typical compounds (specific gravity) |
| Air (20 °C, 1 atm) | Reference | — | 0.0012 | 1 | 0.0000 | 0.1 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
| Water (20 °C) | Reference | referencia de gravedad específica | 0.998 | 998 | 0.0361 | 62.3 | CRC Handbook of Chemistry and Physics (elements, 20 °C) |
Each density is transcribed with the digits its source publishes, at 20 °C, and the other columns are computed from that number with exact factors (1 lb/in³ = 27.679905 g/cm³; 1 g/cm³ = 62.427961 lb/ft³). CDA copper alloys are published in lb/in³ and the g/cm³ is derived from it. For plastics and rubber the density depends on grade and manufacturer: the row gives the typical value and the published range. Materials in the PREMSA catalog link to their page.
Quick answer: what is density and how do you use this chart?
Density is a material's mass per unit volume: how many grams each cubic centimeter weighs. It is the number that turns a CAD model's volume into a part's weight, the one that drives freight, the one that separates an aluminum part from a steel part with the same geometry (steel weighs 2.9 times more) and the one that enters any mass, inertia or center-of-gravity calculation.
This chart gathers the density of over 170 engineering materials exactly as its source publishes it: the Aluminum Association for aluminum alloys, the ASM Handbook for carbon, stainless and tool steels, the Copper Development Association for coppers and brasses (which publishes in lb/in³), the CRC Handbook for pure metals, Special Metals and Haynes for nickel alloys and the manufacturer's datasheet for plastics, rubber and ceramics. Nobody gets extra decimals: a commercial alloy is defined to three figures because its composition varies within the specification.
What is given in full are the conversions: kg/m³, lb/in³ to four decimals and lb/ft³ to one, computed from the published value with exact factors. To weigh an actual part, the part weight calculator applies these same numbers to the volume of your STEP.
Most looked-up values: Aluminum 6061: 2.70 g/cm³ (2,700 kg/m³ · 0.0975 lb/in³) · Carbon steel 1018: 7.87 g/cm³ (7,870 kg/m³ · 0.2843 lb/in³) · Stainless steel 304: 8.00 g/cm³ (8,000 kg/m³ · 0.2890 lb/in³) · Brass C360: 0.307 lb/in³ (8.498 g/cm³) · Titanium grade 5: 4.43 g/cm³ (4,430 kg/m³) · Delrin (acetal): 1.41 to 1.42 g/cm³ · Water at 20 °C: 0.998 g/cm³
Density of engineering materials: how to read it, where it comes from and how to convert it
The four units and how they convert
Density is published in g/cm³ in handbooks and metric standards, in kg/m³ in civil engineering and SI calculations, in lb/in³ in US metal catalogs (the CDA and most distributors) and in lb/ft³ for foam and construction materials. They are the same datum on four scales, and the conversions are exact because the units are defined by international agreement.
- g/cm³ → kg/m³ — multiply by 1,000. Aluminum 6061 at 2.70 g/cm³ is 2,700 kg/m³. g/cm³ and g/mL are the same thing.
- g/cm³ → lb/in³ — divide by 27.679905 (1 lb = 453.59237 g and 1 in³ = 16.387064 cm³). 6061 gives 0.0975 lb/in³; 1018 steel, 0.2843.
- lb/in³ → g/cm³ — multiply by 27.679905. Brass C360, which the CDA publishes as 0.307 lb/in³, is 8.498 g/cm³.
- g/cm³ → lb/ft³ — multiply by 62.427961. 6061 weighs 168.6 lb/ft³ and 1018 steel 491.3 lb/ft³.
- Specific gravity — is density divided by that of water at 4 °C (1.000 g/cm³), so numerically it matches the g/cm³ value. Plastic and rubber datasheets usually publish specific gravity per ASTM D792; here it is shown as density.
Where each number comes from and why it is not rounded beyond what the source publishes
The density of a commercial alloy is not a physical constant: it depends on the exact composition of the heat, and the specification allows a range (6061 admits 0.8 to 1.2 % magnesium and 0.4 to 0.8 % silicon). That is why handbooks publish it to three significant figures, which is the real precision of the datum; writing 2.7000 would be making it up. Between heats of the same alloy the variation is under 1 %, enough for any weight, freight or inertia calculation.
Pure metals are known to more decimals because they have no composition variation, and the CRC Handbook publishes them that way. Plastics and rubber are the opposite case: they change with grade, manufacturer, moisture and fiber or filler load, and the chart gives the typical value of the most common grade together with the published range across grades.
- Wrought aluminum — Aluminum Association, *Aluminum Standards and Data*, at 20 °C.
- Carbon, stainless and tool steels — ASM Handbook, Volume 1; precipitation-hardening and super-austenitic grades from the Carpenter or Outokumpu datasheet.
- Copper, brass and bronze — Copper Development Association, which publishes in lb/in³ to three decimals; the g/cm³ in the chart is the exact conversion of that number.
- Titanium, magnesium, zinc and cast aluminum — ASM Handbook, Volume 2.
- Nickel alloys — Special Metals (Inconel, Monel, Incoloy), Haynes (Hastelloy, Waspaloy) and Carpenter (Kovar, Alloy 20).
- Pure metals — CRC Handbook of Chemistry and Physics, at 20 °C.
- Plastics and rubber — the grade's manufacturer datasheet (ASTM D792 or ISO 1183); rubbers from the Parker O-Ring Handbook as typical compound specific gravity.
- Ceramics and glass — CoorsTek, Kyocera, Corning and Schott.
If a density in this chart does not match your supplier's datasheet, your supplier's value rules for that purchase: it is their heat. The normal difference is in the third figure.
How to calculate a part's weight from density
Weight is volume times density, with the units aligned. A 100 × 50 × 25 mm block has 125,000 mm³ = 125 cm³: in aluminum 6061 it weighs 125 × 2.70 = 337.5 g; in 1018 steel, 125 × 7.87 = 983.8 g; in 304 stainless, 1,000 g; in Delrin, 176 g. For a machined part with pockets and holes the CAD gives the volume, and the part weight calculator reads it straight from the STEP and multiplies by the material you pick. For bar, plate and tube that are not machined yet, the material weight calculator does the math by profile.
- Round bar — volume = π × (Ø/2)² × length. An aluminum bar Ø25.4 mm × 300 mm is 152 cm³ = 410 g.
- Plate — volume = length × width × thickness. A steel plate 300 × 300 × 12.7 mm is 1,143 cm³ = 8.99 kg.
- Tube — volume = π/4 × (OD² − ID²) × length.
- Weight in pounds — multiply the volume in in³ by the density in lb/in³. A 4 × 2 × 1 in steel block is 8 in³ × 0.2843 = 2.27 lb.
How heavy each material is compared with the others
Taking aluminum 6061 (2.70 g/cm³) as the reference, magnesium weighs 0.65 times, titanium 1.6, steel 2.9, brass 3.1, copper 3.3, tungsten 7.1. Going down, acetal weighs half of aluminum, nylon 0.42, polypropylene 0.33. These ratios are what matter when switching material on a part: with the same geometry, going from steel to aluminum removes 66 % of the weight; going from aluminum to Delrin removes another 48 %.
- Aluminum 6061 vs 7075 — 2.70 vs 2.81 g/cm³: the same part weighs 4 % more in 7075, not less. We explain it in 6061 vs 7075 aluminum.
- Carbon steel vs stainless — 7.87 vs 8.00 g/cm³ (304 and 316): a 1.7 % difference that does not show in practice. Everything else changes; see 304 vs 316 stainless steel.
- Brass vs bronze — brass C360 weighs 8.498 g/cm³ and bearing bronze SAE 660 (C932) 8.913: bushing bronze is 5 % heavier because of its tin and lead.
- Titanium vs steel — 4.43 vs 7.85 g/cm³: grade 5 titanium weighs 56 % of steel with strength similar to quenched and tempered 4140.
Density changes with temperature and with process
All values are at 20 °C. As the material heats up it expands and density drops: aluminum loses about 0.7 % of its density between 20 and 120 °C, steel 0.35 %. For weighing parts it does not matter; for calculating a fluid volume or a mold fill it does. The process also moves the number in some materials: a sand-cast aluminum part can carry porosity and weigh 1 to 3 % less than the table density; a 3D-printed plastic at 20 % infill weighs a fraction of the solid filament density, and a sintered material (SLS nylon 12, MIM metal) ends up between 95 and 99 % of theoretical density.
Frequent density lookups
The densities people look up most, with their source, ready to copy.
- What is the density of aluminum?
- Pure aluminum weighs 2.70 g/cm³ (CRC Handbook). Machined alloys run from 2.66 (5083) to 2.84 (2219): 6061 weighs 2.70, 7075 2.81 and 2024 2.78 g/cm³ (Aluminum Association). In pounds, 6061 is 0.0975 lb/in³.
- What is the density of steel?
- Carbon and alloy steels weigh between 7.85 and 7.87 g/cm³ (7,850 to 7,870 kg/m³; 0.284 lb/in³) per the ASM Handbook: 1018 and 12L14 7.87, 1045 7.87, 4140 and A36 7.85. Bearing steel 52100 drops to 7.81 and high-speed steels rise to 8.16 (M2) because of tungsten and molybdenum.
- What is the density of stainless steel?
- Austenitic 304, 316 and 303 weigh 8.00 g/cm³ (8,000 kg/m³; 0.289 lb/in³); 301 and 321, 8.03. Martensitic and ferritic grades are lighter: 410, 420 and 430 weigh 7.80 and 440A 7.74. 17-4 PH weighs 7.78 and duplex 2205 7.80 g/cm³ (ASM Handbook).
- What is the density of brass and bronze?
- The CDA publishes them in lb/in³: brass C360 0.307 (8.498 g/cm³), cartridge brass C260 0.308 (8.525), bearing bronze SAE 660 (C932) 0.322 (8.913), phosphor bronze C510 0.320 (8.858), aluminum bronze C954 0.269 (7.446 g/cm³).
- What is the density of copper?
- Pure copper weighs 8.96 g/cm³ (CRC). Electrolytic C110 and oxygen-free C101 are published at 0.321 and 0.323 lb/in³ (8.885 and 8.941 g/cm³, CDA); beryllium copper C172 drops to 0.298 lb/in³ (8.249 g/cm³).
- What is the density of titanium?
- Pure titanium weighs 4.51 g/cm³, and so does commercially pure grade 2. Grade 5 (Ti-6Al-4V) weighs 4.43 g/cm³ (4,430 kg/m³; 0.160 lb/in³) and grade 9, 4.48 (ASM Handbook, Vol. 2).
- What is the density of engineering plastics?
- Polypropylene 0.90, HDPE 0.95, UHMW 0.93, ABS 1.05, nylon 6/6 1.14, cast nylon 6 1.15, acrylic 1.19, polycarbonate 1.20, ULTEM 1.27, PEEK 1.30, PVC 1.41, acetal 1.41 to 1.42, PVDF 1.78, PTFE 2.16 g/cm³. All from the grade datasheet per ASTM D792; the chart gives the range.
- How much does a liter of each material weigh?
- A liter is 1,000 cm³, so density in g/cm³ is the weight in kilograms per liter: a liter of aluminum 6061 weighs 2.70 kg, of steel 7.87 kg, of titanium 4.43 kg, of lead 11.3 kg and of tungsten 19.3 kg.
- What is the difference between density and specific weight?
- Density is mass per volume (g/cm³ or kg/m³). Specific weight is force per volume (N/m³ or lbf/ft³): density times gravity. In US catalogs «specific weight» in lb/ft³ is used as a synonym for density because pound-mass and pound-force coincide on Earth. Specific gravity, on the other hand, is dimensionless: density divided by that of water.
What to know before using a value from the chart
- The chart value is the alloy's or the grade's; the real part can weigh less from porosity (casting), infill (3D printing) or sintering, and more with thick coatings.
- For a quoted part, the weight the carrier charges comes from the STEP's real volume times the catalog density, not from a bounding-box estimate: that is why the freight of a hollow part is not inflated.
- When the source publishes in lb/in³ (CDA copper alloys), the g/cm³ in the chart is an exact conversion and carries four figures; it does not mean that material is known more precisely than an aluminum.
- For plastics and rubber, ask for the exact grade's datasheet before a fine calculation: a 30 % glass-filled nylon 6/6 weighs 1.37 g/cm³ against 1.14 for unfilled nylon, and bronze-filled PTFE almost 50 % more than virgin PTFE.
- Common scales do not subtract air density (0.0012 g/cm³); for foam parts air buoyancy is already measurable and laboratory balances correct for it.
Related resources
- Tool
Part Weight Calculator
Upload your STEP and get the real weight of the finished part with these densities.
Open tool - Tool
Material Weight Calculator
Weight of bar, plate, tube and profiles by material and size.
Open tool - Resource
Materials for CNC Machining
Data sheets for every alloy and plastic we machine, with properties and uses.
View resource - Resource
6061 vs 7075 Aluminum
Strength, stiffness, weight, welding and cost with a worked case.
View resource - Resource
304 vs 316 Stainless Steel
Corrosion, machinability, magnetism and cost, with specification data.
View resource - Guide
CNC Design Guide
DFM rules for radii, walls, threads, tolerances and materials.
Read guide
Frequently asked questions about material density
- Why do the values carry only three figures if the chart says «without rounding»?
- Because that is the precision sources publish an alloy's density with: composition varies within the specification and the third figure already absorbs that variation. What this chart does NOT round are the conversions: kg/m³, lb/in³ to four decimals and lb/ft³ are computed from the published value with exact factors, and where the source publishes in lb/in³ (CDA) the g/cm³ comes out with four figures. Pure metals from the CRC do carry more decimals because they have no composition variation.
- Is the density of 304 stainless 8.00 or 7.93 g/cm³?
- It depends on the source. The ASM Handbook and most US distributors publish 8.00 g/cm³ (0.289 lb/in³); some European mills publish 7.93 or 7.90 for 1.4301. The difference is under 1 % and falls within heat-to-heat variation. This chart uses the ASM; for a specific purchase, the datasheet of the lot you receive rules.
- How do I convert g/cm³ to lb/in³?
- Divide by 27.679905. It is the exact ratio between 453.59237 g (one pound) and 16.387064 cm³ (one cubic inch). Aluminum 6061 at 2.70 g/cm³ gives 0.0975 lb/in³; 1018 steel at 7.87 g/cm³ gives 0.2843 lb/in³. To go back, multiply by the same factor.
- How much does an aluminum part weigh compared with the same part in steel?
- 34 % of its weight in steel: 2.70 over 7.87 g/cm³. A 1 kg part in 1018 steel weighs 343 g in 6061 aluminum, 563 g in grade 5 titanium and 180 g in Delrin, always with the same geometry.
- Which is denser, brass or bronze?
- It depends on the bronze. Tin-lead bearing bronze (C932, SAE 660) weighs 8.913 g/cm³, more than brass C360 (8.498). Aluminum bronze (C954) weighs less than both, 7.446 g/cm³, because aluminum is light. That is why a «bronze» part can weigh 20 % more or 12 % less than the same part in brass.
- Does density change with temper or heat treatment?
- Almost not at all. A 6061-T6 and a 6061-O have the same density for practical purposes (the difference is in the fourth figure); same for annealed and quenched 4140. What changes density is composition: that is why 7075 (with zinc) weighs 4 % more than 6061 and M2 high-speed steel (with tungsten and molybdenum) 4 % more than a carbon steel.
- What density do I use for a 3D-printed part?
- The filament's or powder's density gives the weight of a solid part at 100 % infill. With partial infill the real weight is lower and depends on the slicer: walls, top and bottom layers and infill percentage. PREMSA's quoting tool uses the real slice (grams of filament from the slicer) for the weight and price of a printed part, not density times CAD volume.
- Why do ceramics and composites carry a range?
- Because density depends on the process: a 96 % alumina weighs 3.72 g/cm³ and a 99.8 % one 3.92; a carbon fiber laminate weighs 1.50 or 1.60 depending on fiber fraction and the voids left in the resin. The chart gives the typical value of the reference grade (CoorsTek, Toray, NEMA) and the published range across grades.
- Can I use this chart to estimate freight for an order?
- Yes, but PREMSA already does it for you: the weight of each part in the cart comes from the STEP's exact volume times the catalog density, plus packaging, and the carrier is quoted on that. For a quick estimate, multiply the part's volume by its material density and add the box.
Because that is the precision sources publish an alloy's density with: composition varies within the specification and the third figure already absorbs that variation. What this chart does NOT round are the conversions: kg/m³, lb/in³ to four decimals and lb/ft³ are computed from the published value with exact factors, and where the source publishes in lb/in³ (CDA) the g/cm³ comes out with four figures. Pure metals from the CRC do carry more decimals because they have no composition variation.
It depends on the source. The ASM Handbook and most US distributors publish 8.00 g/cm³ (0.289 lb/in³); some European mills publish 7.93 or 7.90 for 1.4301. The difference is under 1 % and falls within heat-to-heat variation. This chart uses the ASM; for a specific purchase, the datasheet of the lot you receive rules.
Divide by 27.679905. It is the exact ratio between 453.59237 g (one pound) and 16.387064 cm³ (one cubic inch). Aluminum 6061 at 2.70 g/cm³ gives 0.0975 lb/in³; 1018 steel at 7.87 g/cm³ gives 0.2843 lb/in³. To go back, multiply by the same factor.
34 % of its weight in steel: 2.70 over 7.87 g/cm³. A 1 kg part in 1018 steel weighs 343 g in 6061 aluminum, 563 g in grade 5 titanium and 180 g in Delrin, always with the same geometry.
It depends on the bronze. Tin-lead bearing bronze (C932, SAE 660) weighs 8.913 g/cm³, more than brass C360 (8.498). Aluminum bronze (C954) weighs less than both, 7.446 g/cm³, because aluminum is light. That is why a «bronze» part can weigh 20 % more or 12 % less than the same part in brass.
Almost not at all. A 6061-T6 and a 6061-O have the same density for practical purposes (the difference is in the fourth figure); same for annealed and quenched 4140. What changes density is composition: that is why 7075 (with zinc) weighs 4 % more than 6061 and M2 high-speed steel (with tungsten and molybdenum) 4 % more than a carbon steel.
The filament's or powder's density gives the weight of a solid part at 100 % infill. With partial infill the real weight is lower and depends on the slicer: walls, top and bottom layers and infill percentage. PREMSA's quoting tool uses the real slice (grams of filament from the slicer) for the weight and price of a printed part, not density times CAD volume.
Because density depends on the process: a 96 % alumina weighs 3.72 g/cm³ and a 99.8 % one 3.92; a carbon fiber laminate weighs 1.50 or 1.60 depending on fiber fraction and the voids left in the resin. The chart gives the typical value of the reference grade (CoorsTek, Toray, NEMA) and the published range across grades.
Yes, but PREMSA already does it for you: the weight of each part in the cart comes from the STEP's exact volume times the catalog density, plus packaging, and the carrier is quoted on that. For a quick estimate, multiply the part's volume by its material density and add the box.
Got a part in mind?
Upload it and we’ll make it real. One part or a thousand.