The
steel grades commonly available in India are as follows |
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NICKEL-CHROMIUM-MOLYBDENUM
STEELS |
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BS : 970 |
SAE/AISI |
IS : 3930 |
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EN : Spench |
SPENCH |
IS
: 4432 |
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IS
: 5517 |
EN- 16 |
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35 Mn 6 Mo 3 |
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EN- 19 |
4140 |
40 Cr 4 Mo 3 |
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EN- 24 |
4340 |
40 Ni6 Cr4 Mo3 |
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EN-25 |
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31 Ni 10 Cr3 Mo6 |
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EN-36 |
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13 Ni 3 Cr 80 |
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EN-40B |
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25 Cr 13 Mo 6 |
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EN-111 |
3140 |
35 Ni 5 Cr 2 |
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EN-353 |
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15 Ni Cr 1 Mo12 |
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EN-354 |
4320 |
15 Ni 1Cr 1Mo 15 |
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CHROMIUM
BEARING STEELS |
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BS : 970 |
SAE/AISI |
IS : 4396 |
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EN : Spe. |
SPECN |
IS
: 3930 |
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IS
: 4432 |
EN-31 |
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103Cr1 |
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EN-31 |
52100 |
103Cr2 |
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EN-18D |
5140 |
40Cr4 |
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EN-48 |
5147 |
50Cr4 |
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FREE
CUTTING STEELS |
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BS : 970 |
SAE/AISI |
IS : 4431 |
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EN : Spe. |
SPECN |
EN-1A |
1213 |
11C10S25 |
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EN-7 |
1115 |
25C12S14 |
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EN-8M |
1140 |
40C10S18 |
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EN-15 AM |
1137 |
40C15S12 |
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CARBON
STEELS |
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BS : 970 |
SAE/AISI |
IS : 1875 |
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EN : Spe. |
SPECN |
IS
: 1570 |
EN-32B |
1015 |
CI-IA |
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EN-4 |
1026 |
CI-IIA |
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EN-5 |
1030 |
CI-III |
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EN-8 |
1040 |
CI-IV |
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EN-9 |
1055 |
CI-V |
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EN-42B |
1065 |
CI-VI |
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CASE
HARDENING STEELS |
IS (NEW) |
IS (OLD) |
EN |
DIN |
AISI/SAE |
BS |
10C4 |
C10 |
En 32A |
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1012 |
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15C8 |
C15Mn75 |
En 32B En32C |
Ck15 C15 |
1016 ,1018 |
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15Cr3 |
15Cr65 |
En 207 |
15Cr 3 |
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527M20 |
16Mn5Cr4 |
17Mn1Cr95 |
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16Mn Cr5 |
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20MnCr5 |
20MnCr1 |
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20MnCr5 |
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15Ni5Cr4Mo1 |
15NiCr1Mo12 |
En 353 |
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815M17 |
15Ni7Cr4Mo2 |
15Ni2Cr1Mo15 |
En 354 |
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4320 |
820M17 |
20Ni7Mo2 |
20Ni2Mo25 |
En 34 |
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4620 |
665M17 |
20NiCrMo2 |
20Ni55Cr50Mo20 |
En 362 |
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8620 |
805M20 |
13Ni13Cr3 |
13Ni3Cr80 |
En 36A |
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3310 |
655M13 |
16Ni3Cr2 |
16Ni80Cr60 |
En 351 |
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635M15 |
16Ni8Cr6Mo2 |
16NiCr2Mo20 |
En 355 |
17CrNiMo6 |
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822M17 |
20Ni7Cr4Mo2 |
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En 325 |
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14CrNi6 |
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15CrNi6 |
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CARBON
STEEL GRADES |
IS (NEW) |
IS (OLD) |
EN |
DIN |
AISI/SAE |
BS |
20C8 |
C20 |
En 3A |
C22 |
1020 |
05A20/060A20 |
25C8 |
C25 Mn 75 |
En 4 |
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1025 |
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30C8 |
C30 |
En 5 |
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1030 |
080M30/080A30 |
35C8 |
C35 Mn 75 |
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Ck35, C35 |
1035 |
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Ck38 |
1038 |
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40C8 |
C40 |
En 8 |
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1040 |
080 M 40 |
45C8 |
C45 |
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Ck45,C45 |
1045 |
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50C8 |
C50 |
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Ck53 |
1050 |
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55C8 |
C55 Mn 75 |
En 9 |
Ck55 |
1055 |
070 M 55 |
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CASE HARDENING STEELS |
IS:1570/1961 |
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EQUIVALENT
SPECIFICATION |
DESIGNATION |
ASP DESIGNATION |
BS:970 |
SAE |
DIN |
GOST |
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DESIGNATION |
DESIGNATION |
DESIGNATION |
DESIGNATION |
C-10 |
CH-1 |
En 32A |
1012/1015 |
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17Mn1Cr95 |
CH-2 |
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16Mn Cr 5 |
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20Mn1Cr1 |
CH-3 |
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20MnCr5 |
20 xTA |
20Ni2Mo25 |
CH-4 |
En 34 |
4620 |
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15HMA |
15Cr65 |
CH-5 |
En 207 |
5115 |
15Cr3 |
15 x1 |
16Ni-80Cr60 |
CH-6 |
En 351 |
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20Ni55Cr |
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50Mo20 |
CH-7 |
En 362 |
8620, 8720 |
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13Ni3 |
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Cr80 |
CH-8 |
En 36A |
3310 |
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36B |
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15NiCr |
CH-9 |
En 353 |
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1Mo12 |
CH-10 |
En 36C |
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15Ni2Cr |
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1Mo15 |
CH-11 |
En 354 |
4320 |
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16NiCr |
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2Mo20 |
CH-12 |
En 355 |
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15CrNi6 |
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ALLOY
STEEL GRADES |
IS (NEW) |
IS (OLD) |
EN |
DIN |
AISI/SAE |
BS |
20 C15 |
20Mn2 |
En 14A |
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1524 |
150M28 |
27C15 |
27Mn2 |
En14B |
28Mn6 |
1527 |
150M28 |
37C15 |
37Mn2 |
En15, En15A |
36Mn5 |
1536 |
150M36 |
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35 Mn5 |
1041 |
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35Mn6Mo3 |
35 Mn2Mo28 |
En16 |
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605M36 |
35Mn6Mo4 |
35 Mn2Mo45 |
En17 |
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608M38 |
40Cr4 |
40Cr1 |
En18 |
37Cr4,39Cr4,41Cr4 |
5140 |
530M40 |
40Cr4Mo3 |
40Cr1Mo28 |
En19, En19A |
42CrMo4 |
4140, 4142 |
708M40 |
40Ni6Cr4Mo3 |
40Ni2Cr1Mo28 |
En24 |
34CrNiMo6 |
4340 |
817M40 |
31NiOCr3Mo6 |
31Ni3Cr65Mo55 |
En25 |
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826M31 |
40Ni10Cr3Mo6 |
40Ni3Cr65Mo55 |
En26 |
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826M40 |
30Ni13Cr5 |
30Ni4Cr1 |
En30A |
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40Ni6Cr4Mo2 |
40Ni1Cr1Mo15 |
En110 |
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816M40 |
35Ni5Cr2 |
35Ni1Cr60 |
En111 |
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640M40 |
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50CrMo4 |
4150 |
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HIGH
CARBON HIGH CHROMIUM BEARING STEELS |
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IS |
EN |
DIN |
AISI/SAE |
BS |
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103Cr1 |
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51100 |
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103Cr2 |
En 31 |
100 Cr6 |
52100 |
534A99/535A99 |
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103Cr2Mn70 |
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