Every stainless steel grade we supply, 121 pages in one index. Grouped by structure, with the equivalent designations for each grade so you can match a drawing, a mill certificate or a foreign specification to the page that carries the composition and mechanical data.
If you already know the grade, search for its number. If you are choosing between families, the structure is what decides corrosion resistance, strength and whether the part can be hardened. The magnetic behaviour of each family is a quick way to tell them apart on the shop floor.
Austenitic (300 series) (17)
The workhorse group: 301 through 347, plus 904L and the high-purity variants.
- 1.4420, S31655, Stainless Steel
- 1.4424 / X2CrNiMoN18-14-3 Stainless Steel
- 1.4435 X2CrNiMo18-14-3 Austenitic Stainless Steel
- 1.4539, 904L, N08904, Stainless Steel
- 1.4571 X6CrNiMoTi17-12-2 Austenitic Stainless Steel
- 301, S30100, 1.4310, SUS301, Stainless Steel
- 302 S30200 1.4319 SUS302 Stainless Steel
- 303, 1.4305, S30300, Stainless Steel
- 310, 310S, 310H, 1.4845, Stainless Steel
- 316L UHP Ultra High Purity Stainless Steel Bar
- 316L VIM-VAR Ultra-High Purity Stainless Steel for Semiconductor Equipment
- 316LN UNS S31653 Austenitic Stainless Steel
- 317 317L 1.4449 1.4438 Stainless Steel
- 347 347H 1.4550 1.4961 Stainless Steel
- AISI 321 1.4541 SUS321 S32100 Stainless Steel
- Incoloy 840 alloy, 1.4847, S33400, Stainless Steel
- XM-19, 1.3964, S20910, Austenitic Stainless Steel
Super austenitic (10)
6 % molybdenum and above, for chlorides and seawater where 316 is not enough.
- 1.4361,X1CrNiSi18-15-4, S30600, Stainless Steel
- 1.4547, F44, 245SMO, S31254, Super Austenitic Stainless Steel
- 1.4563 Stainless Steel
- 1.4565, Alloy 24, S34565, Super Austenitic Stainless Steel
- 654 SMO, S32654, 1.4652, Stainless Steel
- INCOLOY 27-7MO, S31277, Super-Austenitic Stainless Steel
- N08031, 1.4562, Alloy 31, Nicrofer 3127 hMo, Stainless Steel
- N08367, AL-6XN, INCOLOY 25-6HN, Super-Austenitic Stainless Steel
- S32050 Super Austenitic Stainless Steel
- S32254 Super Austenitic Stainless Steel
Ferritic (5)
Chromium-based, magnetic, no nickel premium.
- 1.4003 X2CrNi12 Ferritic Stainless Steel
- 1.4509 X2CrTiNb18 Ferritic Stainless Steel
- 409 1.4512 X6CrTi12 Ferritic Stainless Steel
- 430 1.4016 430F 1.4104 430Ti 1.4510 Stainless Steel
- AISI 444 1.4521 Stainless Steel
Martensitic (27)
Hardenable by quenching: cutlery, blades, shafts and mould steels.
- 1.2083, S136, X40Cr14, Stainless Tool Steel
- 1.4006 X12Cr13 Martensitic Stainless Steel
- 1.4021 X20Cr13 Stainless Steel
- 1.4057 Stainless Steel
- 1.4104 X14CrMoS17 Martensitic Stainless Steel
- 1.4112 X90CrMoV18 UNS S44003 440B Stainless Steel
- 1.4122 X39CrMo17-1 Stainless Steel
- 1.4125 X105CrMo17 UNS S44004 440C Stainless Steel
- 1.4313 X3CrNiMo13-4 Martensitic Stainless Steel
- 1.4418 X4CrNiMo16-5-1 Stainless Steel
- 154CM Blade Stainless Steel
- 2Cr13 20Cr13 S42020 Stainless Steel
- 420HC Stainless Steel
- 440A B C Cold Rolled Stainless Steel Strip and Sheet
- 440C Stainless Steel Bright Small Rod
- 440C, SUS440C, 95Cr18, Stainless Steel For Blade Cutter
- 5Cr15 Blade Stainless Steel
- 7Cr17MoV Steel
- AISI 410 410L 410S Stainless Steel
- AISI 420 S42000 Stainless Steel
- AISI 431 S43100 SUS431 1.4057 Stainless Steel
- AISI 431 S43100 SUS431 1.4057 Stainless Steel Round Bar
- S41425 / 1.4415 / X2CrNiMoV13-5-2 Stainless Steel
- SUS420J1 Cold Rolled Stainless Steel Strip and Sheet
- SUS420J2 Stainless Steel
- X30Cr13 1.4028 Stainless Steel
- X46Cr13 1.4034 Stainless Steel
Duplex and super duplex (7)
Austenite plus ferrite: roughly twice the yield strength of 300 series.
- 1.4362
- 2205, S32205, S31803, 1.4462, F51, Duplex Stainless Steel
- 2507, S32750, 1.4410, F53, Super Duplex Stainless Steel
- 329 S32900 1.4460 stainless Steel
- F55, S32760, 1.4501, Super Duplex Stainless Steel
- S31500 / 1.4417 Duplex Stainless Steel
- UNS S32001 EN 1.4482 LEAN DUPLEX STAINLESS STEEL
Precipitation hardening (9)
Strength from an ageing treatment rather than from carbon.
- 1.4542, S17400, 630, 17-4PH, Precipitation Hardening Stainless Steel
- 1.4545, S15500, XM-12, 15-5PH, Precipitation Hardening Stainless Steel
- 1.4594, XM-25, S45000, Stainless Steel
- 13-8PH 1.4534 Martensitic Precipitation-Hardening Stainless Steel
- 15-7PH / S15700 / 1.4532 / X8CrNiMoAl15-7-2 Stainless Steel
- 631, S17700, 17-7PH, 1.4568, Precipitation Hardening Stainless Steel
- 660, S66286, Alloy A-286, Stainless Steel
- AM355 Precipitation Hardening Stainless Steel
- Alloy 350 / S35000 / AM350 Stainless Steel
Heat resisting, valve and turbine steels (30)
Grades specified for temperature, creep and valve-train duty.
- 1.2731, X50NiCrWV13-13, SUH31, Valve & Tool Steel
- 1.4718, X45CrSi9-3, HNV3, SUH1, Stainless Valve Steel
- 1.4731, X40CrSiMo10-2, SUH3, Valve Stainless Steel
- 1.4748, X85CrMoV18-2, Stainless Valve Steel
- 1.4866, X33CrNiMnN23-8, EV16, Valve Stainless Steel
- 1.4871, X53CrMnNiN21-9, EV12, SUH35, Valve Stainless Steel
- 1.4875, X55CrMnNiN20-8, EV12, Valve Stainless Steel
- 1.4882, X50CrMnNiNbN21-9, Valve Stainless Steel
- 1.4935, X20CRMOWV12-1, AISI 422, CREEP RESISTING STEEL
- 1Cr11MoV 1.4922 X20CrMoV11-1 Stainless Steel For Steam Turbine Blade
- 2.4694, Alloy 751, SUH751, N07751, Valve Nickel Alloy
- 2.4952, Nimonic 80A, NiCr20TiAl, N07080, Valve Nickel Alloy
- 253MA S30815
- 309Si2, 1.4828, S38240, Stainless Steel
- 310MoLN, 1.4466, Stainless Steel
- 310Si2, X8CrNiSI25-21, S38340, Stainless Steel
- 410 1.4006 X12Cr13 Stainless Steel For Steam Turbine Blade
- 420 1.4021 X20Cr13 Stainless Steel For Steam Turbine Blade
- 961 S47310 Martensitic Stainless Heat-Resistant Steel
- AISI 616, Alloy 422, S42200, Stainless Steel For Turbine Blades
- Greek Ascoloy, Alloy 418, S41800, Stainless Steel For Turbine Blades
- NCF3015, S66315, Ni30, Valve Stainless Steel
- S46020 21Cr12MoV 2Cr12MoV Stainless Steel For Steam Turbine Blade
- S47010 15Cr12WMoV 1Cr12W1MoV Stainless Steel For Steam Turbine Blade
- S47450 18Cr11NiMoNbVN 2Cr11NiMoNbVN Stainless Steel For Steam Turbine Blade
- S63012 Valve Stainless Steel
- SUS420J1 1.4119 X15CrMo13 Stainless Steel For Steam Turbine Blade
- X22CrMoV12-1 1.4923 Martensitic Creep Resisting Stainless Steel
- X53CrMnNiNbN21-9 / 1.4870 Niobium-Modified Austenitic Valve Steel (21-43N) — FUSHUN METAL
- XM-32, S6412, Stainless Steel For Turbine Blades
Stainless steel rebar (15)
BS 6744 and equivalent reinforcement grades.
- 2205 (UNS S31803) Duplex Stainless Steel Rebar
- 304 (UNS S30400) Stainless Steel Rebar
- 316L (UNS S31603) Stainless Steel Rebar
- 316LN (UNS S31653) Stainless Steel Rebar
- BS 6744 Grade 1.4162 Duplex Stainless Steel Rebar
- BS 6744 Grade 1.4311 Stainless Steel Rebar
- BS 6744 Grade 1.4362 Duplex Stainless Steel Rebar
- BS 6744 Grade 1.4404 Stainless Steel Rebar (316L)
- BS 6744 Grade 1.4429 Stainless Steel Rebar (N-Enhanced)
- BS 6744 Grade 1.4436 Stainless Steel Rebar
- BS 6744 Grade 1.4462 Stainless Steel Rebar (2205 Duplex)
- BS 6744 Grade 1.4501 Super Duplex Stainless Steel Rebar
- BS 6744 Grade 1.4529 Super Austenitic Stainless Steel Rebar
- XM-28 (UNS S24100) Stainless Steel Rebar
- XM-29 (UNS S24000) Stainless Steel Rebar
Not sure which family you need
Send the drawing or the application and we will tell you what the part actually needs — including where a cheaper grade would do. The standards library has the specifications these grades are produced to.
