A193 B8MN Class 2 S31651 316N - ASTM A193/A193M-2020

Grade	A193 B8MN Class 2
USA UNS	S31651
Other Names
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 Forgability Weldability

A193 B8MN Class 2 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

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

A193 B8MN Class 2 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≤M20	Solid Solution Treatment + Strain Hardening	≥760	≥655	≥15	≥45	≤321
M20＜d≤M24	Solid Solution Treatment + Strain Hardening	≥690	≥550	≥20	≥45	≤321
M24＜d≤M30	Solid Solution Treatment + Strain Hardening	≥655	≥450	≥25	≥45	≤321
M30＜d≤M36	Solid Solution Treatment + Strain Hardening	≥620	≥345	≥30	≥45	≤321

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

1 Approximate Comparison Table Austenitic Stainless Steel

2 Approximate Comparison Table Austenitic Stainless Steel

China		Japan	United States	International Organization for Standardization		European Standard
GB	ISC	JIS	UNS	ISO	Numerical Grade	Numerical Grade
06Cr17Ni12Mo2N	S31658	SUS316N	S31651	X6CrNiMoN17-12-3	4495-316-51-J	(1.4495)

A193B8MNClass2 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"!