Grade A543 Type C Class 3
Corresponding Standard ASTM A543/A543M-2009(R2021)
Standard Specification for Pressure Vessel Plates, Alloy Steel, Quenched and Tempered Nickel-Chromium-Molybdenum
Classification Alloy Steel
A543 Type C Class 3 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - 0.15 - - - 1 2 0.2
Maximum Value 0.18 0.4 0.4 0.02 0.02 1.9 3.5 0.65
A543 Type C Class 3 Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
620~795 ≥485 ≥16

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