443.0-T7
Aluminum443.0 cast aluminum
443.0-T7 supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| SI | 4.5 |
|---|---|
| CU | 0.3 |
| MG | 0.05 |
| FE | 0.8 |
| ZN | 0.5 |
Equivalent Standards
AA 443.0 / ASTM B85
Equivalent Grades
Aluminum Association
Applications
Aerospace, automotive, construction, packaging, electrical.
Available Forms
Castings, Sand, Die
Uses
Aluminium alloy with good strength-to-weight ratio, corrosion resistance and recyclability. Silicon (≈5.25%) improves castability and lowers thermal expansion. Copper (≈0.3%) 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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