Japanese standard stainless steel standards and grades

Stainless steel is one of the special steels made by adding chromium, nickel and other substances to iron to prevent rust. In the JIS standard, the material symbol of stainless steel is written as "SUS", which is taken from "Steel Special Use Stainless", indicating that it is a special purpose steel that is not easy to rust.
Austenitic stainless steel
S304J2, SUS305, SUS309S, SUS310S, SUS312L, SUS315J1, SUS315J2, SUS316, SUS316L, SUS316LN, SUS316Ti, SUS316J1, SUS316J1L, SUS317, SUS317L, SUS317LN, SUS317J1, SUS317J2, SUS836L, SUS890L, SUS321, SUS347, SUSXM7, SUSXM15J1
Ferritic stainless steel
SUS405, SUS410L, SUS429, SUS430, SUS430LX, SUS430J1L, SUS434, SUS436L, SUS436J1L, SUS445J1, SUS445J2, SUS444, SUS447J1, SUSXM27
Duplex stainless steel (duplex stainless steel/ferritic two-phase system)
SUS329J1, SUS329J3L, SUS329J4L
Martensitic stainless steel
SUS403, SUS410, SUS410S, SUS420J1, SUS420J2, SUS440A
Precipitation hardened stainless steel
SUS630, SUS631

Japanese standard

List of JIS standards related to stainless steel (partial)
JISStandard	Name	Type
JIS G 3601	stainless steel composite steel	2002
JIS B 2308	Stainless steel threaded joint	2002
JIS B 2309	Stainless steel butt welding pipe fittings for general pipelines	2009
JIS G 3446	Stainless steel pipes for mechanical structures	2004
JIS G 3447	Stainless steel sanitary pipe	2004
JIS G 3448	Stainless steel pipes for general piping	2004
JIS G 3459	Stainless steel pipe for pipes	2004
JIS G 3463	Stainless steel tubes for boilers and heat exchangers	2006
JIS G 3467	Steel pipe for heating furnace	1988
JIS G 3468	Welded large diameter stainless steel pipes for pipelines	2004
JIS G 4903	Seamless nickel-chromium-iron alloy pipe for pipelines	1991

Austenitic stainless steel material code comparison table

05	99	91	84	81
SUS201	SUS201	SUS201	SUS201	SUS201
SUS202	SUS202	SUS202	SUS202	SUS202
SUS301	SUS301	SUS301	SUS301	SUS301
SUS301L	SUS301L	SUS301L	-	-
SUS301J1	SUS301J1	SUS301J1	SUS301J1	SUS301J1
SUS302	SUS302	SUS302	SUS302	SUS302
SUS302B	SUS302B	SUS302B	SUS302B	SUS302B
SUS303	SUS303	SUS303	SUS303	SUS303
SUS303Se	SUS303Se	SUS303Se	SUS303Se	SUS303Se
SUS303Cu	SUS303Cu	1998年	-	-
SUS304	SUS304	SUS304	SUS304	SUS304
SUS304Cu	-	-	-	-
SUS304J1	SUS304J1	SUS304J1	-	-
SUS304J2	SUS304J2	SUS304J2	-	-
SUS304J3	SUS304J3	SUS304J3	-	-
SUS304L	SUS304L	SUS304L	SUS304L	SUS304L
SUS304N1	SUS304N1	SUS304N1	SUS304N1	SUS304N1
SUS304N2	SUS304N2	SUS304N2	SUS304N2	SUS304N2
SUS304LN	SUS304LN	SUS304LN	SUS304LN	SUS304LN
SUS305	SUS305	SUS305	SUS305	SUS305
SUS305J1	SUS305J1	SUS305J1	SUS305J1	SUS305J1
SUS309S	SUS309S	SUS309S	SUS309S	SUS309S
SUS310S	SUS310S	SUS310S	SUS310S	SUS310S
SUS312L	-	-	-	-
SUS315J1	SUS315J1	-	-	-
SUS315J2	SUS315J2	-	-	-
SUS316	SUS316	SUS316	SUS316	SUS316
SUS316F	SUS316F	1998	-	-
SUS316L	SUS316L	SUS316L	SUS316L	SUS316L
SUS316N	SUS316N	SUS316N	SUS316N	SUS316N
SUS316LN	SUS316LN	SUS316LN	SUS316LN	SUS316LN
SUS316J1	SUS316J1	SUS316J1	SUS316J1	SUS316J1
SUS316J1L	SUS316J1L	SUS316J1L	SUS316J1L	SUS316J1L
SUS316Ti	SUS316Ti	SUS316Ti	-	-
SUS317	SUS317	SUS317	SUS317	SUS317
SUS317L	SUS317L	SUS317L	SUS317L	SUS317L
SUS317LN	SUS317LN	SUS317LN	-	-
SUS317J1	SUS317J1	SUS317J1	SUS317J1	SUS317J1
SUS317J2	SUS317J2	SUS317J2	-	-
廃止	SUS317J3L	SUS317J3L	-	-
SUS836L	SUS836L	SUS317J4L	-	-
SUS890L	SUS890L	SUS317J5L	-	-
SUS321	SUS321	SUS321	SUS321	SUS321
SUS347	SUS347	SUS347	SUS347	SUS347
SUS384	SUS384	SUS384	SUS384	SUS384
SUSXM7	SUSXM7	SUSXM7	SUSXM7	SUSXM7
SUSXM15J1	SUSXM15J1	SUSXM15J1	SUSXM15J1	SUSXM15J1