2A90-T4
Aluminum2A90 (GB/T 3190)
2A90-T4 supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| CU | 3.5 |
|---|---|
| MG | 0.4 |
| SI | 0.5 |
| NI | 1.8 |
Chinese Standard
T 3190
Equivalent Standards
LD9
Applications
Aerospace, automotive, construction, packaging, electrical.
Available Forms
Sheet, Plate, Bar, Extrusion, Foil, Tube, Wire
Uses
Aluminium alloy with good strength-to-weight ratio, corrosion resistance and recyclability. Silicon (≈0.9%) improves castability and lowers thermal expansion. Copper (≈4%) raises strength and hardness via precipitation hardening. Used in transport, aerospace, packaging, building and electrical applications.
Heat Treatment
Heat-treatable variants solution treated 470–540 °C and aged (T4/T6); non-heat-treatable grades are strain-hardened. Anneal 340–415 °C.
Precautions
Use sharp, high-rake tooling and appropriate coolants; galling/adhesive wear can occur. Titanium reacts with hydrogen and chlorine — keep out of pickling/HCl environments.
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