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Grade AC1B
Corresponding Standard JIS H 5202-2010
Aluminium Alloy Castings
Classification Aluminum and Aluminum Alloys
Density 2.78 g/cm3
AC1B Chemical Element Composition Content (%)
Component Fe Si Mn Cr Ni Cu Ti Pb Zn Sn Mg More
Minimum Value - - - - - 4.2 0.05 - - - 0.15 Al:余量
Maximum Value 0.35 0.3 0.1 0.05 0.05 5 0.35 0.05 0.1 0.05 0.35
AC1B Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
permanent mould casting test pieces Solution Heat Treatment + Natural Aging (T4) ≥330 ≥8 Approx. 95①②
sand casting test pieces Solution Heat Treatment + Natural Aging (T4) ≥290 ≥4 Approx. 90①②
Approximate Comparison Table Aluminium and Aluminium Alloy
Japan United States International Organization for Standardization Germany European Standard
JIS ASTM ISO DIN EN/DIN W-Nr. EN
AC1B 204.0 AlCu4MgTi G-AlCu4TiMg 3.1371 ENAC-AlCu4MgTi

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