Grade SA-193 Grade B8MLCuN Class 1B
Corresponding Standard ASME SA-193/SA-193M-2019
Standard Specification for Alloys-Steel and Stainless Steel Bolting for High-Temperature or or High Pressure Service and Other Special Purpose Applications
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
SA-193 Grade B8MLCuN Class 1B Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo N
Minimum Value - - - - - 19.5 17.5 0.5 6 0.18
Maximum Value 0.02 0.8 1 0.03 0.01 20.5 18.5 1 6.5 0.25
SA-193 Grade B8MLCuN Class 1B Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
d=All Sizes Carbide Solid Solution Treatment ≥550 ≥240 ≥30 ≥40 ≤223

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