Performance Level A890 Grade 5A
USA UNS J93404
Other Names
Corresponding Standard ASTM A890/A890M-2018
Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application
Classification Cast Steel
Properties Corrosion Resistance
A890 Grade 5A Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N More
Minimum Value - - - - - 24 6 4 0.1 Cr+3.3Mo+16N≥40
Maximum Value 0.03 1 1.5 0.04 0.04 26 8 5 0.3
A890 Grade 5A Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
≥690 ≥515 ≥18
Approximate Comparison Table Cast Steel
China United States International Organization for Standardization
GB UNS ISO Numerical Grade
ZG03Cr26Ni7Mo4N J93404 GX2CrNiMoN26-7-4 1.4469

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