Grade SA-193 B8MNA Class 1A
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 B8MNA Class 1A Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N
Minimum Value - - - - - 16 10 2 0.1
Maximum Value 0.08 1 2 0.045 0.03 18 13 3 0.16
SA-193 B8MNA Class 1A 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 Solution Heat Treatment in Finished Condition ≥515 ≥205 ≥30 ≥50 ≤192

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