A193 B8S Class 1D S21800 - ASTM A193/A193M-2020

Grade	A193 B8S Class 1D
USA UNS	S21800
Corresponding Standard	ASTM A193/A193M-2020 Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance

A193 B8S Class 1D Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	N
Minimum Value	-	3.5	7	-	-	16	8	0.08
Maximum Value	0.1	4.5	9	0.06	0.03	18	9	0.18

• The intentional addition of Bi, Se, Te, and Pb is not permitted

A193 B8S Class 1D 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
All Sizes	Solid Solution Treatment	≥655	≥345	≥35	≥55	≥271HBW or ≥28HRC

• d-diameter of bolt, screw, studs, double-end studs, bars and wire.

A193B8SClass1D Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!