1275
Other1275
1275 grade supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| FE | 0.12 |
|---|---|
| SI | 0.08 |
| MN | 0.02 |
| CU | 0.05 |
| TI | 0.02 |
| V | 0.03 |
| AL | 99.75 |
Available Forms
Bar, Plate, Tube, Forging
Uses
Aluminium alloy with good strength-to-weight ratio, corrosion resistance and recyclability. Silicon (≈0.08%) improves castability and lowers thermal expansion. Copper (≈0.075%) 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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