2A12 aluminium sheet/plate belongs to2 series Al-Cu alloy, which mainly contains the alloy component Cu, and belongs to the heat-treated alloy sheet. Therefore, the 2A12 aluminium alloy strengthened by heat treatment has high strength. In addition, 2A12 aluminium sheet has excellent machinability and good spot welding property, but when gas welding and argon arc welding, there is a tendency to form intergranular cracks. And the corrosion resistance is not high, need to carry out surface treatment or aluminium coating to improve its corrosion resistance. Now, 2A12 aluminium sheet is mainly used for making various parts and components with high load (but not including stamping parts and forgings). 

Applications and Features:

1. High Fatigue Strength. 2A12 aluminium sheet can be subjected to an almost infinite number of alternating loads without failure.

2. Excellent Machinability. After cold hardening, the machinability of 2A12 aluminium sheet is good .

3. Mechanical Properties. 2A12 aluminium alloy tensile strength σb (MPa)≥410, conditional yield strength  σ0.2 (MPa)≥265, elongation δ5 (%)≥12.

The Use of 2A12 Aluminium Sheet

Conventional Application

In conventional applications, 2A12 aluminium sheet is mainly used in molds, traffic vehicles, compressors, rivets, truck hubs, screw elements and other structural parts.

2A12 Aluminium Sheet for Aircraft Manufacturing

In aircraft manufacturing, 2A12 aluminium sheet is mainly used for skeleton parts, skin, diaphragm, wing ribs, wing spars, rivets and other parts working below 150 ℃.