S31000 - ASTM A959-2019

USA UNS	S31000
AISI American Iron and Steel Institute	310
Corresponding Standard	ASTM A959-2019 Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance High-Temperature Resistance

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	-	-	-	-	-	24	19
Maximum Value	0.25	1.5	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

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

United Kingdom

ISC

CNS

JIS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

BS EN/BS

20Cr25Ni20
(2Cr25Ni20)

S31020

SUH 310

STR 310

310

S31000

X15CrNi 25-21

X15CrNiSi 25-20

1.4841

Z15CNS 25-20

X15CrNi 25-20

1.4845

20Х25Н20С2

310S31

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