S31400 - ASTM A959-2019

USA UNS	S31400
AISI American Iron and Steel Institute	314
Corresponding Standard	ASTM A959-2019 Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification	Austenitic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	-	1.5	-	-	-	23	19
Maximum Value	0.25	3	2	0.045	0.03	26	22

• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

Approximate Comparison Table Austenitic Heat-Resistant Steel

China		United States	International Organization for Standardization	Germany		France	European Standard		Russia	United Kingdom
GB	ISC	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
16Cr25Ni20Si2 (1Cr25Ni20Si2)	S38340	S31400	X15CrNiSi 25-21	X15CrNiSi 25-20	1.4841	Z15CNS 25-20	X15CrNiSi 25-21	1.4841	20Х25Н20С2	310S24

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