Grade AZ91B
USA UNS M11912
Corresponding Standard ASTM B94-2018(R2025)
Standard Specification for Magnesium-Alloy Die Castings
Classification Magnesium and Magnesium Alloys
AZ91B Chemical Element Composition Content (%)
Component Si Mn Ni Cu Al Zn More
Minimum Value - 0.13 - - 8.3 0.35 Mg:Rem.
Maximum Value 0.5 0.5 0.03 0.35 9.7 1
AZ91B Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
230 160 3 63 3
AZ91B Corresponding Standards(Same grade name, different standards)

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