Tensile strength around 572 MPa in T6 temper
Strength approaching mild steel at one-third the weight
Excellent for aerospace and motorsport load paths
Machines to fine finishes and takes hard anodizing
Better fatigue performance than 6061
Available in plate and bar up to 200 mm section
| 7075-T6 plate 6–200 mm |
| 7075-T651 bar |
| 7075 with hard anodizing |
| 7075 for motorsport suspension parts |
| 7075 for aerospace fittings |
| Specification | Details |
|---|---|
| Tensile strength | 572 MPa (T6) |
| Yield strength | 503 MPa |
| Density | 2.81 g/cm³ |
| Machinability | Good, chip control matters |
| Corrosion | Fair, cladding or anodizing advised |
| Availability | Plate and bar, up to 200 mm |
Hard anodizing
Chromic acid anodizing for aerospace
Alodine conversion coating
Bead blasting and paint
The alloy is prone to stress corrosion cracking at weldments, so it is normally used as a machined part rather than welded structure. Where a welded high-strength assembly is needed we specify 6061 or 5083.
Choose 7075 when the load or the weight target demands it and the part is machined rather than welded. For everything else 6061 gives 80 % of the performance at lower material cost.
It anodizes but with a darker, less clear result than 6061, so hard anodizing or paint is preferred over clear finishes on 7075 parts.
Metals and engineering plastics for CNC machining: aluminium, stainless, steel, titanium, brass, copper and high-performance polymers with grade guidance.
Resins for injection moulding: ABS, PP, PC, PA, POM, PBT, PEEK and glass-filled grades with shrink, temperature and application guidance.
Materials for industrial 3D printing: PA12, PA11, glass-filled nylon, TPU, engineering resins and high-temperature polymers compared by process.
Sheet materials for fabrication: cold rolled and galvanised steel, stainless 304/316, aluminium 5052/6061 and copper, with thickness and finish guidance.
FRP and GRP material options: glass and carbon fibre reinforcements, polyester, vinyl ester and epoxy resins, foam and honeycomb core materials.
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