What is the material of zaisi7mga?

ZAlSi7MgA is an Al-Si-Mg ternary alloy. The composition and properties are basically the same as ZL 10 1, but the impurity content is low, and a small amount of Ti is added to refine the grain, so the mechanical properties are greatly improved compared with ZL 10 1.

Brand: ZAlSi7MgA

Standard: GB/T1173-1995.

Chemical composition:

Aluminium: allowance

Silicon Si: 6.5 ~ 7.5

Copper Cu: ≤ 0. 1

Magnesium mg: 0.25-0.45

Zinc Zn: ≤ 0. 1

Manganese Mn: ≤ 0. 10

Titanium: 0.08-0.20

Zirconium Zr: ≤ 0.20

Serial number: ≤ 0.0 1

Lead: ≤ 0.03

Iron (sand casting): 0.000 ~ 0.200

Iron (permanent mold casting): 0.000 ~ 0.200

Note: Total impurities: (sand mold) ≤ 0.7; (Permanent mold casting) ≤0.7

Mechanical properties:

Tensile strength σ b (MPa): ≥ 225

Elongation δ 5 (%): ≥ 5

Hardness: ≥60(5/250/30)HBS.

Heat treatment specification:

Solution treatment: 535 5℃, 6 ~ 12h.