2D70
Aluminum2D70
2D70 grade supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| FE | 0.9 |
|---|---|
| SI | 0.1 |
| MN | 0.1 |
| CR | 0.1 |
| NI | 0.9 |
| CU | 2 |
| TI | 0.05 |
| AL | 92.05 |
Available Forms
Bar, Plate, Tube, Forging
Uses
Aluminium alloy with good strength-to-weight ratio, corrosion resistance and recyclability. Silicon (≈0.175%) improves castability and lowers thermal expansion. Copper (≈2.3%) 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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