1X Aluminium Sheet Plate EN-AW 7075 T651 Grade Super Hard Cut Size 45mmx23mmx5mm

Both share the same base alloy and artificial aging process. The key difference is that T651 includes a controlled stretching step after solution heat treatment, which relieves residual internal stresses. This makes T651 significantly more stable during machining — you're less likely to see warping or spring-back when removing material, which matters for precision parts.

7075 is considerably stronger. Typical tensile strength for 7075-T651 is 500–570 MPa versus approximately 310 MPa for 6061-T6. If your application involves high loads, fatigue cycling, or thin cross-sections that need to resist bending, 7075 is the appropriate choice. For general-purpose fabrication where weldability matters more, 6061 is often preferred.

Welding 7075 is technically possible but not recommended for structural applications. The high zinc content makes it susceptible to hot cracking during fusion welding, and the heat-affected zone loses most of the T651 temper strength. For joining 7075 components, mechanical fastening (bolts, rivets) or adhesive bonding are the preferred methods.

7075 has lower natural corrosion resistance than 6061 or 5052 due to its high zinc and copper content. For outdoor or humid environments, surface protection is recommended — anodizing (hard anodize works well), alodine/chromate conversion coating, or paint. In dry indoor environments, bare 7075 performs adequately for most applications.

Standard carbide end mills and drill bits designed for aluminium work well with 7075-T651. Use sharp tooling, appropriate cutting speeds (typically 200–400 m/min surface speed for carbide), and a cutting fluid or coolant to manage heat and achieve a clean finish. The alloy machines cleanly and holds tight tolerances when tooling is in good condition.

7075-T651 is widely used in aerospace, defence, and high-performance structural applications due to its strength-to-weight ratio. This plate is cut from standard EN-AW 7075 T651 stock. If your application requires certified material with full traceability documentation (mill cert, chemical analysis), please contact us to confirm availability before ordering.

This listing is specifically for the 45 mm × 23 mm × 5 mm cut size. If you need a different dimension, please contact us to confirm whether a custom cut is available for your project requirements.