Grade Al Si7Mg
Corresponding Standard JIS H 5202-2010
Aluminium alloy castings
Classification Aluminum and Aluminum Alloys
Al Si7Mg Chemical Element Composition Content (%)
Component Fe Si Mn Ni Cu Ti Pb Zn Sn Mg Other Individual Other Total More
Minimum Value - 6.5 - - - 0.05 - - - 0.2 - - Al:余量
Maximum Value 0.55 7.5 0.35 0.15 0.2 0.25 0.15 0.15 0.05 0.65 0.05 0.15
"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.
Al Si7Mg Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
permanent mould casting test pieces as fabricated (F) ≥170 ≥90 ≥2.5 ≥55
permanent mould casting test pieces Solution Heat Treatment + Artificial Aging (T6) ≥260 ≥220 ≥1 ≥90
permanent mould casting test pieces solution heat-treated + artificial age hardened (T64) ≥240 ≥200 ≥2 ≥80
sand casting test pieces as fabricated (F) ≥140 ≥80 ≥2 ≥50
sand casting test pieces Solution Heat Treatment + Artificial Aging (T6) ≥220 ≥180 ≥1 ≥75
lost-wax casting test pieces as fabricated (F) ≥150 ≥80 ≥2 ≥50
lost-wax casting test pieces Solution Heat Treatment + Artificial Aging (T6) ≥240 ≥190 ≥1 ≥75

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