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Manufacturing services
CNC milling and turning · From 1 part
Plates, brackets, arms and parts for robotics, drones, molds and aerospace in 7075-T6 aluminum, milled and turned from your file, bare or anodized. Upload your CAD and order online, starting at a single part.
Robot arm plate
7075-T6 Aluminum · 120 × 120 × 12 mm · Lightening pockets and bolt pattern
1 pc
$141.02 USD
per part
25 pcs
$43.36 USD
per part
-69.25%100 pcs
$39.14 USD
per part
-72.25%7075 aluminum is a high-strength aluminum-zinc alloy (5.1–6.1% zinc) with magnesium and copper. In the T6 temper it reaches 572 MPa (83 ksi) ultimate tensile strength and 503 MPa (73 ksi) yield, with a density of 2.81 g/cm³. That is why it is used for parts that carry high loads and have to stay light: aerospace, robotics, drones, molds and tooling. At PREMSA we CNC mill and turn it from your file, starting at a single part with an instant price.
Technical data for 7075-T6 aluminum to design and machine your parts.
Alloy Series
7000 series (Al-Zn alloy)
Temper
T6 (solution heat-treated and artificially aged)
Primary Characteristics
Ultra-high strength, excellent fatigue resistance, good machinability, lower weldability
Tensile Strength (Ultimate)
83 ksi (572 MPa)
Tensile Strength (Yield)
73 ksi (503 MPa)
Shear Strength
48 ksi (331 MPa)
Fatigue Strength
23 ksi (159 MPa)
Elongation at Break
11%
Brinell Hardness
150 HB
Density
2.81 g/cm³ (0.102 lb/in³)
Elastic Modulus
10,400 ksi (71.7 GPa)
Poisson’s Ratio
0.33
Thermal Conductivity
130 W/m·K
Coefficient of Thermal Expansion
23.4 µm/m·°C
Melting Range
477–635 °C (890–1175 °F)
Electrical Conductivity
~33% IACS
Machinability
Very good (hard, breaks chips well and leaves a clean finish)
Weldability
Poor (Resistance welding preferred; fusion welding not recommended)
Corrosion Resistance
Moderate (should be anodized or protected)
Anodizing Response
Good (Used primarily for protection and wear resistance)
Common Forms
Plate (T651), round bar, square bar, flat bar
Typical Applications
Structural plates and brackets, robotics and drone parts, robot arms and end effectors, mold plates and tooling, aerospace parts, racing and bicycle parts
Material Composition
Aluminum (Al): 87.1–91.4%, Zinc (Zn): 5.1–6.1%, Magnesium (Mg): 2.1–2.9%, Copper (Cu): 1.2–2.0%, Chromium (Cr): 0.18–0.28%
ASTM Standard
ASTM B209 / B211 / B221
Comparison based on high-performance engineering standards.
Strength
Weight
Machinability
Weldability
Formability
Corrosion Resistance
Thermal Resistance
Cost Efficiency
Upload your CAD file and get an instant price and delivery date. CNC milling and turning from one part to production.
We CNC mill and turn 7075-T6 aluminum parts for robotics, drones, aerospace, molds, automation and motorsport.
Structural plates and brackets
Robot arm plates and end-of-arm tooling (EOAT)
Drone frames and parts
Mold plates and tooling
Aerospace and defense parts
High-load gears, shafts and bushings
Fixtures and soft jaws
Racing, bicycle and sporting parts
High-pressure hydraulic fittings
Common questions about custom 7075 aluminum parts: what it is, T6 and T651, aircraft aluminum, strength, corrosion, machinability, anodizing, welding, cost and tolerances.
7075 aluminum is chosen for parts that have to carry high loads or fatigue and stay light. It comes in plate (usually stress-relieved T651) and in round and square bar.
At PREMSA Industries we machine 7075 with CNC milling and turning from your file, from prototype to production.
7075-T6 is chosen when a part has to carry high loads or fatigue and stay light.
If your drawing doesn’t specify tolerances, we machine to ISO 2768-m (medium). On dimensions you call out —holes, fits and datum surfaces— we can hold ±0.025 mm (±0.001 in), and critical dimensions are checked in inspection. 7075 is hard and stable, so it holds tight tolerances well; for thin plates, T651 is best so they don’t move after cutting.
7075 machines very well. It is a hard aluminum, so chips break short and the finish comes out clean in CNC milling, CNC turning, drilling and tapping.
7075 can’t be fusion welded: it cracks and loses strength in the heat-affected zone.
Because of its strength and weight, 7075 is used in CNC machined components that carry high loads or move.
7075 is usually the right choice when the part needs high strength at low weight.