A320 B8FSe Class 2 S30323 303Se - ASTM A320/A320M-2021

Grade	A320 B8FSe Class 2
USA UNS	S30323
Other Names
Corresponding Standard	ASTM A320/A320M-2021 Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance

A320 B8FSe Class 2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Se
Minimum Value	-	-	-	-	-	17	8	0.15
Maximum Value	0.15	1	2	0.2	0.06	19	10	0.35

A320 B8FSe Class 2 Mechanical Properties

	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≤20	Carbide Solid Solution Treatment with Strain Hardening	≥860	≥690	≥12	≥35	≤321
20＜d≤25	Carbide Solid Solution Treatment with Strain Hardening	≥795	≥550	≥15	≥30	≤321
25＜d≤32	Carbide Solid Solution Treatment with Strain Hardening	≥725	≥450	≥20	≥35	≤321
32＜d≤40	Carbide Solid Solution Treatment with Strain Hardening	≥690	≥345	≥28	≥45	≤321

1 Approximate Comparison Table

2 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization		European Standard
GB	ISC	JIS	UNS	ISO	Numerical Grade	Numerical Grade
Y12Cr18Ni9Se	S30327	SUS303Se	S30323	X12CrNiSe18-9	4625-303-23-X	1.4625

A320B8FSeClass2 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"!