Steels with Chromium content between 16% and 26%, Nickel between 7% and 35% and Carbon (max. 0.15%), cannot be strengthened by quench hardening, but only through cold working (e.g. cold drawing). The main features of these steels are their resistance to corrosion, which is generally higher than other stainless steels, and their nonmagnetic behaviour.

Valbruna Grade W.N. AISI UNS EN BS
214MNC 1.4870 - - X53CrMnNiNbN21-9 352S52
21MN 1.4881 - - X70CrMnNiN21-6 -
ACNW - - - - 331S40
AIM/1 - 201 S20100 - -
AIMR - XM-28 S24100 - -
AIP 1.4303 305 S30500 X4CrNi18-12/X5CrNi18-12 -
AISC 1.4550 / 1.4546 347 / 347H S34700 / S34709 X6CrNiNb18-10 / X5CrNiNb18-10 347S31 / 347S20
AISH 1.4948 304H S30409 X6CrNi18-10 / X6CrNi18-11 -
AISH1 1.4948 304H S30409 X6CrNi18-10 / X6CrNi18-11 -
AISH2 - 304H S30409 - -
AISL 1.4301/1.4307 304/304L S30400/S30403 X5CrNi18-10/X2CrNi18-9 304S15/304S31
AISL/DE 1.4306 - - X2CrNi19-11 -
AISLN 1.4311 304LN S30453 X2CrNiN18-10 -
AISN - XM-21 S30452 - -
AISR/1 1.4301/1.4307 304/304L S30400/S30403 X5CRNI18-10/X2CRNI18-9 304S15/304S31
AIST 1.4541 321 S32100 X6CrNiTi18-10 321S31
AISTH 1.4878 / 1.4544 321H S32109 X8CrNiTi18-10 -
AISWT 1.4962 - - X12CrNiWTiB16-13 -
AMSL - 317L S31703 - -
AMSL/DE 1.4438 - - X2CrNiMo18-15-4 -
AMSL/DE2 1.4439 - - X3CrNiMoN17-13-5 -
APFI/SI 1.4841 314 S31400 X15CrNiSi25-21 / X15CrNiSi25-20 314S25
APFIS 1.4845 310/310S S31000/S31008 X8CrNi25-21/X12CrNi25-21 310S31
APFR 1.4833 309 S30900 X12CrNi23-13 / X7CrNi23-14 -
APFR/2 - EV4 S63017 - 381S34
APFR/SI 1.4828 - - X15CrNiSi20-12 -
APM/DE2 1.4432 / 1.4436 - - X2CrNiMo17-12-3 / X5CrNiMo17-13-3 316S33 / 316S14
APMC/DE 1.4580 - - X10CrNiMoNb18-10 -
APMH - 316H S31609 - -
APML 1.4401/1.4404 316/316L S31600/S31603 X5CrNiMo17-12-2/X2CrNiMo17-12-2 316S14/316S19
APMLD2 1.4435 - - X2CrNiMo18-14-3 316S13 / 316S14 / 316S33
APMLDVAR - 316LN-IG - - -
APMLN 1.4429 - - X2CrNiMoN17-13-3 -
APMLN/DE 1.4406 316N / 316LN S31651 / S31653 X2CrNiMoN17-11-2 -
APMLNH 1.4429 316LN - - -
APMT 1.4571 316TI S31635 - -
APMT/DE 1.4571 - - X6CrNiMoTi17-12-2 -
APMTH1 1.4571 - - X6CrNiMoTi17-2-2 -
AU188 1.4310 / 1.4300 / 1.4324 302 S30200 X10CrNi18-8 / X12CrNi18-8 302S31 / 301S22
AU188Z 1.4305 303 S30300 X8CrNiS18-9 303S31
AU188ZU 1.4570 - - X6CrNiCuS18-9-2 -
MV188ZX 1.4305 303 S30300 X8CrNiS18-9 303S31
NTR50 - XM-19 S20910 - -
NTR60 - - S21800 - -
S5220 1.4785 - - X60CrMnMoVNbN21-10 -
V2018MN 1.4547 F44 S31254 X1CrNiMoCuN20-18-7 -
V2111N 1.4835 F45 S30815 X9CrNiSiNCE21-11-2 -

Valbruna produces the following grades