SA-193 Grade B8 Class 2B - ASME SA-193/SA-193M-2019 - H2ABC

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Grade	SA-193 Grade B8 Class 2B
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 B8 Class 2B Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	-	-	-	-	-	18	8
Maximum Value	0.08	1	2	0.045	0.03	20	11

SA-193 Grade B8 Class 2B Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
d≤M48	Solid Solution Treatment + Strain Hardening	≥655	≥515	≥25	≥40	≤321
M48<d≤M64	Solid Solution Treatment + Strain Hardening	≥620	≥450	≥30	≥40	≤321
M64<d≤M72	Solid Solution Treatment + Strain Hardening	≥550	≥380	≥30	≥40	≤321

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