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Chemical Composition of SS 400 Series Martensitic & Ferritic Steel

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Chemical Composition

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Chemical Composition of Martensitic Steel Grade :

Chemical Composition of Martensitic Steel Grade
Grade UNS Indian / IS European / EN %C %Mn %P %S %Si %Cr %Ni %Mo % Others
(Max) (Max) (Max) (Max) (Max)
SS410 S41000 X12Cr12 1.4006 0.08-0.15 1.00 0.040 0.030 1 11.50-13.50 0.75 max – –
SS415 S41500 X02Cr13Ni4Mn1Mo1 1.4313 0.05 0.50-1.00 0.030 0.030 0.6 11.50-14.00 3.50-5.50 0.50-1.00 –
SS420 S42000 X20Cr13 1.4021 0.15 min 1.00 0.040 0.030 1 12.00-14.00 0.75 max 0.50 max –
SS420J1 – X20Cr13 1.4021 0.16-0.25 1.00 0.040 0.030 1 12.00-14.00 0.6 – –
SS420J2 – X30Cr13 1.4028 0.26-0.40 1.00 0.040 0.030 1 12.00-14.00 0.6 – –
SS420MoV – – 1.4116 0.45-0.55 1.00 0.040 0.015 1 14.00-15.00 – 0.50-0.80 V=0.10-0.20
SS431 S43100 X15Cr16Ni2 1.4057 0.2 1.00 0.040 0.030 1 15.00-17.00 1.25-2.50 – –
BS – – – 0.6-0.7 1.00 0.028 0.020 0.75 12.50-13.50 – – –
SS405 S40500 X04Cr12Al 1.4002 0.08 1.00 0.040 0.030 1 11.50-14.50 0.6 – AI=0.10-0.30

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Chemical Composition of Ferritic Steel Grade :

Chemical Composition of Ferritic Steel Grade
Grade UNS Indian European %C %Mn %P %S %Si %Cr %Ni %Mo N PPM % Others
IS EN (Max) (Max) (Max) (Max) (Max) (Max)
SS409L – – – 0.03 1 0.04 0.02 1 10.50-11.70 0.50 max – 300 Ti=6X (C+N) Min, 0.75 Max
SS409Ni S40975 X02Cr12Ni1Ti 1.4516 0.03 1 0.04 0.03 1 10.50-11.70 0.50-1.00 – 300 Ti=6X(C+N) Min, 0.75 Max
SS410S S41008 X 04Cr12 1.4 0.08 1 0.04 0.03 1 11.50-13.50 0.60 max – – –
SS430 S43000 X07Cr17 1.4016 0.12 1 0.04 0.03 1 16.00-18.00 0.75 max – – –
SS432 – X02Cr18Mo1TiNbZr – 0.025 1 0.04 0.03 1 17.00-20.00 – 0.40-.80 250 Ti/Nb=8X(C+N) Min, 0.80 Max
SS436 S43600 X02Cr17Mo1Nb – 0.12 1 0.04 0.03 1 16.00-18.00 – 0.75-1.25 – Nb= 5XC Min., 0.70 Max.
SS436L S43932 X02Cr17Mo2TiNbZr – 0.025 1 0.04 0.03 1 16.00-19.00 – 0.75-1.25 250 % Nb or & Ti or % combination = 8X (C+N) Min, 0.80 Max
SS439 S43035 X02Cr18Ti – 0.03 1 0.04 0.03 1 17.00-19.00 0.50 max – 300 Ti=0.20+4X (C+N)
SS441 S43940 X02Cr19TiNb 1.4509 0.03 1 0.04 0.015 1 17.50-18.50 – – – Nb=3X% C+0.3 Min.
SS444 – – – 0.025 1 0.04 0.03 1 17.50-19.50 1 1.75-2.50 350 (Ti+Nb) 0.20+4(C+N)
SS446 S44600 X10Cr25 1.4749 0.2 1.5 0.04 0.03 1 23.00-27.00 0.75 – 2500 –

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Chemical Composition of Ferritic + Martensetic Steel :

Grade %C %Mn %P %S %Si %Cr %Ni %Mo N PPM % Others
(Max) (Max) (Max) (Max) (Max) (Max)
SS409M 0.03 .8-1.5 0.04 0.03 1 10.50-12.50 1.50 max – 300 Ti=0.75 Max