Stainless Steel Grades Standard Comparison Chart - ASTM / JIS / ISO / EN

Stainless steel is the abbreviation of stainless acid resistant steel. Generally, we call stainless steel a steel that is resistant to weak corrosive media such as air, steam and water or has stainless property; The steel that is resistant to chemical corrosion medium (acid, alkali, salt and other chemical etching) is called acid resistant steel.

Due to the difference in chemical composition, their corrosion resistance is different. Ordinary stainless steel is generally not resistant to chemical medium corrosion, while acid resistant steel is generally stainless. The term "stainless steel" not only refers to one kind of stainless steel, but also refers to more than 100 kinds of industrial stainless steels. Each type of stainless steel developed has good performance in its specific application field.

Stainless steel can be divided into austenitic stainless steel, austenitic ferritic (duplex) stainless steel, ferritic stainless steel, martensitic stainless steel and precipitation hardening stainless steel. Their standard definitions are as follows:

Stainless Steel

Steels with stainless steel and corrosion resistance as the main characteristics, and with the content of at least 10.5% and the maximum carbon content of not more than 1.2%.

Austenitic Stainless Steel

The matrix is mainly austenitic structure (y phase) with face centered cubic crystal structure, which is nonmagnetic, and is mainly strengthened (and may lead to certain magnetism) by cold working.

Austenitic Ferritic (Duplex) Stainless Steel

The matrix is a kind of stainless steel that has both austenite and ferrite structures (the content of less phase is generally greater than 15%), is magnetic, and can be strengthened by cold working.

Ferritic Stainless Steel

The matrix is mainly ferrite structure (a phase) with body centered cubic crystal structure, which is magnetic, and generally cannot be hardened by heat treatment, but can be slightly strengthened by cold working.

Martensitic Stainless Steel

The matrix is martensitic structure, magnetic, and its mechanical properties can be adjusted through heat treatment.

Precipitation Hardening Stainless Steel

Stainless steel whose matrix is austenitic or martensitic structure and can be hardened (strengthened) by precipitation hardening (also known as age hardening) treatment.

Due to the different definitions of stainless steel standards in the world, various countries have formulated their own stainless steel grade standards. Although the standard grades are different, the chemical composition is basically the same. Therefore, this paper refers to the standard grades and approximate grades of major countries in the world, combs and sorts out the comparison table of stainless steel grade standards. It can be used as a reference.

Stainless Steel Grades Standard Comparison Chart - ASTM / JIS / ISO / EN

ASTM A959-04	JIS G4303-1998 JIS G4311-1991	ISO/TS 15510:2003 ISO 4955:2005	EN 10088:1-1995 EN 10095-1999
S20100, 201	SUS201	X12CrMnNiN17-7-5	X12CrMnNiN17-7-5, 1.4372
S20200, 202	SUS202	/	X12CrMnNiN18-9-5, 1.4373
(S63008)	SUH35	(X53CrMnNiN21-9)	X53CrMnNiN21-9-4, 1.4871
S30100, 301	SUS301	X5CrNi17-7	(X3CrNiN17-8, 1.4319)
S30103, 301L	(SUS301L)	/	/
S30153, 301LN	/	X2CrNiN18-7	X2CrNiN18-7, 1.4318
S30200, 302	SUS302	X10CrNi18-8	X10CrNi18-8, 1.4310
S30215, 302B	(SUS302B)	X12CrNiSi18-9-3	/
S30300, 303	SUS303	X10CrNiS18-9	X10CrNiS18-9, 1.4305
S30323, 303Se	SUS303Se	/	/
S30400, 304	SUS304	X5CrNi18-10	X5CrNi18-10, 1.4301
S30403,304L	SUS304L	X2CrNi19-11	X2CrNi19-11, 1.4306
S30409, 304H	SUH304H	X7CrNi18-9	X6CrNi18-10, 1.4948
S30415	/	X6CrNiSiNCe19-10	X6CrNiSiNCe19-10, 1.4818
/	SUS304J3	/	/
/	SUSXM7	X3CrNiCu18-9-4	X3CrNiCu18-9-4, 1.4567
S30451, 304N	SUS304N1	X5CrNiN19-9	X5CrNiN19-9, 1.4315
S30452, XM-21	SUS304N2	/	/
S30453, 304LN	SUS304LN	X2CrNiN18-9	X2CrNiN18-10, 1.4311
S30500, 305	SUS305	X6CrNi18-12	X4CrNi18-12, 1.4303
/	SUS305J1	/	/
S38400	(SUS384)	(X6CrNi18-16E)	/
S30800, 308	SUS308	/	/
(S63017)	SUH37	/	/
S30900, 309	SUH309	/	(X15CrNiSi20-12, 1. 4828)
S30908, 309S	SUS309S	X12CrNi23-13	X12CrNi23-13, 1.4833
S31000, 310	SUH310	X15CrNi25-21	X15CrNi25-21, 1.4821
S31008, 310S	SUS310S	X12CrNi23-12	X12CrNi23-12, 1.4845
S31050, 310MoLN	/	X1CrNiMoN25-22-2	X1CrNiMoN25-22-2, 1.4466
S31251	/	X1CrNiMoN20-18-7	X1CrNiMoN20-18-7, 1.4547
S31600, 316	SUS316	X5CrNiMo17-12-2	X5CrNiMo17-12-2, 1.4401
S31603, 316L	SUS316L	X2CrNiMo17-12-2	X2CrNiMo17-12-2, 1.4404
S31609, 316H	/	/	X3CrNiMo17-13-3, 1.4436
S31635, 316Ti	SUS316Ti	X6CrNiMoTi17-12-2	X6CrNiMoTi17-12-2, 1.4571
S31640, 316Nb	/	X6CrNiMoNb17-12-2	X6CrNiMoNb17-12-2, 1.4580
S31651, 316N	SUS316N	/	/
S31653, 316LN	SUS316LN	X2CrNiMoN17-12-3	X2CrNiMoN17-13-3, 1.4429
/	SUS316J1	/	/
/	SUS316J1L	/	/
N08904, 901L	/	/	/
S31700, 317	SUS317	/	/
S31703, 317L	SUS317L	X2CrNiMo19-14-4	X2CrNiMo18-15-4, 1.4438
/	SUS317J1	/	/
S31726, 317LMN	/	X2CrNiMoN18-15-5	X2CrNiMoN17-13-5, 1.4439
S31753, 317LN	SUS317LN	X2CrNiMoN18-12-4	X2CrNiMoN18-12-4, 1.4434
S32100, 321	SUS321	X6CrNiTi18-10	X6CrNiTi18-10, 1.4541
S32109, 321H	(SUS321H)	X7CrNiTi18-10	X6CrNiTi18-10, 1.4541
S32654	/	X1CrNiMoCuN24-22-8	X1CrNiMoCuN24-22-8, 1.4652
N08330, 330	SUH330	(X12CrNiSi35-16)	X12CrNiSi35-16, 1.4864
S34565	/	X2CrNiMnMoN25-18-6-5	X2CrNiMnMoN25-18-6-5, 1.4565
S34700, 347	SUS347	X6CrNiNb18-10	X6CrNiNb18-10, 1.4550
S34709, 347H	(SUS347H)	X7CrNiNb18-10	X7CrNiNb18-10, 1.4912
S38100, XM-15	SUSXM15J1	/	/
/	/	X15CrNiSi20-12	X15CrNiSi20-12, 1.4828
/	/	(X15CrNiSi25-21)	(X15CrNiSi25-21, 1.4841)
S31500	/	/	/
S31803	SUS329J3L	X2CrNiMoN22-5-3	X2CrNiMoN22-5-3, 1.4462
S32205, 2205	/	/	/
S32304, 2304	/	X2CrNiN23-4	X2CrNiN23-4, 1.4362
S31200	/	X3CrNiMoN27-5-2	X3CrNiMoN27-5-2, 1.4460
S31260	(SUS329J2L)	/	/
S32550, 255	SUS329J4L	X2CrNiMoCuN25-6-3	X2CrNiMoCuN25-6-3, 1.4507
S32750, 2507	/	X2CrNiMoN25-7-4	X2CrNiMoN25-7-4, 1.4410
S32760		X2CrNiMoWN25-7-4	X2CrNiMoWN25-7-4, 1.4501
S40500, 405	SUS405	X6CrAl13	X6CrAl13, 1.4002
S40900	(SUH409)	X6CrTi12	/
S40900	(SUH409L)	X2CrTi12	X2CrTi12, 1.4512
S40930	/	/	/
S40977	/	X2CrNi12	X2CrNi12, 1.4003
/	SUS410L	/	/
S42900, 429	(SUS429)	/	/
S43000	SUS430	X6Cr17	X6Cr17, 1.4016
S43020, 430F	SUS430F	X7CrS17	X14CrMoS17, 1.4104
S43035, 439	(SUS430LX)	X3CrTi17	X3CrTi17, 1.4510
S43400, 434	SUS434	X6CrMo17-1	X6CrMo17-1, 1.4113
S43600, 436	/	X6CrMoNb17-1	X6CrMoNb17-1, 1.4526
/	(SUS436L)	/	/
S43940	/	X2CrTiNb18	X2CrTiNb18, 1.4509
S44400, 444	(SUS444)	X2CrMoTi18-2	X2CrMoTi18-2, 1.4521
S44600, 446	(SUH446)	/	/
S44627, XM-27	SUSXM27	/	/
/	SUS417J1	/	/
S40300, 403	SUS403	/	/
S41008, 410S	(SUS410S)	X6Cr13	X6Cr13, 1.4000
S41000, 410	SUS410	X12Cr13	X12Cr13, 1.4006
S41500	(SUSF6NM)	X3CrNiMo13-4	X3CrNiMo13-4, 1.4313
S41600, 416	SUS416	X12CrS13	X12CrS13, 1.4005
S42000, 420	SUS420J1	X20Cr13	X20Cr13, 1.4021
S42000, 420	SUS420J2	X30Cr13	X30Cr13, 1.4028
S42020, 420F	SUS420F	X29CrS13	X29CrS13, 1.4029
/	/	X39Cr13	X39Cr13, 1.4031
S43100, 431	SUS431	X17CrNi16-2	X17CrNi16-2, 1.4057
S44002, 440A	SUS440A	/	/
S44003, 440B	SUS440B	/	X90CrMoV18, 1.4112
S44004, 440C	SUS440C	X105CrMo17	X105CrMo17, 1.4125
S44020, 440F	SUS440F	/	/
(S50200, 502)	(STBA25)	(TS37)	/
/	SUS410J1	/	/
/	SUH600	/	/
(616)	SUH616	/	/
/	SUH1	/	(X45CrSi3, 1.4718)
/	SUH3	/	(X40CrSiMo10, 1.4731)
/	SUH4	/	(X80CrSiNi20, 1.4747)
S13800, XM-13	/	/	/
S45500, XM-16	/	/	/
S15500, XM-12	/	/	/
S17400, 630	SUS630	X5CrNiCuNb16-4	X5CrNiCuNb16-4, 1.4542
S17700, 631	SUS631	X7CrNi17-7	X7CrNi17-7, 1.4568
S15700, 632	/	X8CrNiMoAl15-7-2	X8CrNiMoAl15-7-2, 1.4532
S35000, 633	/	/	/
S17600, 635	/	/	/
S66286, 660	SUH660	(X6NiCrTiMoVB25-15-2)	/