Grade A744 CN3MCu
USA UNS J80020
Other Names
Corresponding Standard ASTM A744/A744M-2021
Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
Classification Cast Steel
A744 CN3MCu Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value - - - - - 19 27.5 3 2
Maximum Value 0.03 1 1.5 0.03 0.015 22 30.5 3.5 3
A744 CN3MCu Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
≥425 ≥170 ≥35

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