S31200 - ASTM A790/A790M-2024

USA UNS	S31200
Corresponding Standard	ASTM A790/A790M-2024 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
Classification	Duplex Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	W
Minimum Value	-	-	-	-	-	24	5.5	0.2	1.2	0.14	0.1
Maximum Value	0.03	1	2	0.045	0.03	26	6.5	0.8	2	0.2	0.5

Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥690	≥450	≥25	≤280

Approximate Comparison Table Austenitic-Ferritic Stainless Steel

China		United States	International Organization for Standardization		Germany		France	European Standard
GB	ISC	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade
022Cr25Ni6Mo2N	S22553	S31200	X3CrNiMoN 27-5-2	4460-312-00-I	X3CrNiMoN 27-5-2	1.4460	X3CrNiMoN 27-5-2	X3CrNiMoN 27-5-2	1.4460

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