Grade AC4A
Corresponding Standard JIS H 5202-2010
Aluminium Alloy Castings
Classification Aluminum and Aluminum Alloys
AC4A Chemical Element Composition Content (%)
Component Fe Si Mn Cr Ni Cu Ti Pb Zn Sn Mg More
Minimum Value - 8 0.3 - - - - - - - 0.3 Al:余量
Maximum Value 0.55 10 0.6 0.15 0.1 0.25 0.2 0.1 0.25 0.05 0.6
AC4A Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
permanent mould casting test pieces as fabricated (F) ≥170 ≥3 Approx. 60①②
permanent mould casting test pieces Solution Heat Treatment + Artificial Aging (T6) ≥240 ≥2 Approx. 90①②
sand casting test pieces as fabricated (F) ≥130 - Approx. 45①②
sand casting test pieces Solution Heat Treatment + Artificial Aging (T6) ≥220 - Approx. 80①②

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!