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standards

Stainless steel standards

martensitic | ferritic|austenitic | austeno-ferritic|heat resisting

Approximate equivalence between standards

MARTENSITIC STEELS
AISI W.-Nr. Symbol name Composition according to AISI
C % Si % Mn % P ≤ % S % Cr % Ni % Mo % Ti % Others
410 1.4006 X12Cr13 ≤ 0,15 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 11,5-13,5 - - - -
416 1.4005 X12CrS13 ≤ 0,15 ≤ 1,00 ≤ 1,25 0.060 ≥ 0,150 12,0-14,0 - - - Zr /or/ Mo ≤ 0,60
420 1.4021 X20Cr13 ≥ 0,15 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 12,0-14,0 - - - -
420 F 1.4028 X30Cr13 0,28-0,35 ≤ 1,00 ≤ 1,00 0.045 ≤ 0,030 12,0-14,0 - - - -
FERRITIC STEELS
AISI W.-Nr. Symbol name Composition according to AISI
C % Si % Mn % P ≤ % S % Cr % Ni % Mo % Ti % Others
410S 1.4000 X6Cr13 ≤ 0,08 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 11,5-13,5 ≤ 0,60 - - -
409 1.4512 X2CrTi12 ≤ 0,08 ≤ 1,00 ≤ 1,00 0.045 ≤ 0,045 10,5-11,75 ≤ 0,50 - - Ti 6xC ≤ 0,75
410S 1.4003 X2Cr11 ≤ 0,03 ≤ 1,00 0,50-1,50 0.045 ≤ 0,030 10,5-12,5 0,30-1,00 - - N ≤ 0,03
430 1.4016 X6Cr17 ≤ 0,12 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 16,0-18,0 - - - -
430Ti 1.4510 X3CrTi17 ≤ 0,10 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 16,0-19,5 ≤ 0,75 - - Ti 5xC ≤ 0,75
434 1.4113 X6CrMo17-1 ≤ 0,08 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 16,0-18,0 - 0,75-1,25 - -
436 - X6CrMoNb17-1 ≤ 0,08 ≤ 1,00 ≤ 1,00 0.040 ≤ 0,030 16,0-18,0 - 0,75-1,25 - Nb/Ta 5xC-0,70
AUSTENITIC STEELS
AISI W.-Nr. Symbol name Composition according to AISI
C % Si % Mn % P ≤ % S % Cr % Ni % Mo % Ti % Others
301 1.4310 X10CrNi18-8 ≤ 0,15 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 16,0-18,0 6,00-8,00 - - -
301L 1.4318 X2CrNiN18-7 ≤ 0,03 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 16,5-18,5 6,00-8,00 - - N 0,10 - 0,15
302 1.4319 X10CrNi18-9 ≤ 0,15 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 17,0-19,0 8,00-10,0 - - -
303 1.4305 X10CrNiS18-9 ≤ 0,15 ≤ 1,00 ≤ 2,00 0.200 ≥ 0,150 17,0-19,0 8,00-10,0 - - Zr /or/ Mo ≤ 0,60
304 1,4301 X5CrNi18-10 ≤ 0,08 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 18,0-20,0 8,00-10,5 - - -
304L 1,4306 X2CrNi19-11 ≤ 0,03 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 18,0-20,0 8,00-12,0 - - -
321 1.4541 X6CrNiTi 18-10 ≤ 0,08 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 17,0-19,0 9,00-12,0 - ≥ 5xC -
305 1,4303 X4CrNi18-12 ≤ 0,12 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 17,0-19,0 10,5-13,0 - - -
316 1.4401 X5CrNiMo17-12-2 ≤ 0,08 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 16,0-18,0 10,0-14,0 2,00-3,00 - -
316L 1.4404 X2CrNiMo17-12-2 ≤ 0,03 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 16,0-18,0 10,0-14,0 2,00-3,00 - -
316Ti 1.4571 X6CrNiMoTi17-12-2 ≤ 0,08 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 16,0-18,0 10,0-14,0 2,00-3,00 ≥ 5xC -
904L 1.4539 X1NiCrMoCuN25-20-5 ≤ 0,02 ≤ 0,70 ≤ 2,00 0.030 ≤ 0,015 19,0-21,0 24,0-26,0 4,00-5,00 - Cu 1,0-2,0; N 0,04-0,15
AUSTENO-FERRITIC STEELS
AISI W.-Nr. Symbol name Composition according to AISI
C % Si % Mn % P ≤ % S % Cr % Ni % Mo % Ti % Others
329 1.4460 X4CrNiMoN27-5-2 ≤ 0,20 ≤ 0,75 ≤ 1,00 0.040 ≤ 0,030 23,0-28,0 2,50-5,00 1,00-2,00 - -
HEAT RESISTING STEELS
AISI W.-Nr. Symbol name Composition according to AISI
C % Si % Mn % P ≤ % S % Cr % Ni % Mo % Ti % Others
309 1.4828 X16CrNi23-14 ≤ 0,20 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 22,0-24,0 12,0-15,0 - - -
309S 1.4833 X12CrNi23-13 ≤ 0,08 ≤ 1,00 ≤ 2,00 0.045 ≤ 0,030 22,0-24,0 12,0-15,0 - - -
310 1.4841 X22CrNi25-20 ≤ 0,25 ≤ 1,50 ≤ 2,00 0.045 ≤ 0,030 24,0-26,0 19,0-22,0 - - -
310S 1,4845 X6CrNi25-20 ≤ 0,08 ≤ 1,50 ≤ 2,00 0.045 ≤ 0,030 24,0-26,0 19,0-22,0 - - -
330 1.4864 X12NiCrSi36-16 ≤ 0,08 0,75-1,50 ≤ 2,00 0.040 ≤ 0,030 17,0-20,0 34,0-37,0 - - -
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