July 18, 2002 Comparison of Grades of Steel Specified in the Indian Standards with Nearest Equivalent Grades Specified in other National Standards 1
Ball Ball and and Rol Rolle lerr Bea Beari ring ng Ste Steel el IS
BS
Current
Obsolete
4398:1994
1570
Chromium Steel 104Cr6 105Cr1 2
DIN
Obsolete
Current
Obsolete
SAE Current
Current
970:1956
970-1:1983
EN ISO 683-17:1999
17230:1980
EN ISO 683-17:1999
J404:1994
En 31
535A99
100Cr6
100Cr6
100Cr6
E52100
Current EN 10084:1998
Obsolete 17210:1986
Current EN 10084:1998
045A10, 045M10 080A15, 080M15 070M20
C10E, C10R C16E C16R -
C 10, Ck 10
-
C10E, C10R C16E C16R -
523H15, 523M15
17Cr3
17Cr3
17Cr3
−
16MnCr5
16MnCr5
16MnCr5
−
Case Case Ha Harden rdeniing Steel eels IS
Current 4432:1988
Obsolete 1570, 4432, 5517
Carbon Steels 10C4
C10
15C8 (Class 1A) 20C8 (Class 2)
BS Obsolete 970:1956 970-1:1983
C15Mn75
En 2E, En 32A En 32C
C20
3D
DIN
−
SAE Current J403:1995 J404:1994 J1268:1995 1010, 1012 1018 1018, 1019, 1021, 1022
Chromium Steels 15Cr3 15Cr65
En 206
Chromium-Manganese Steels 16Mn5Cr4 17Mn1Cr95
−
590H17, 590M17
20Mn5Cr5
20MnCr1
−
−
20MnCr5
20MnCr5
20MnCr5
−
Nickel-Molybdenum Steel 20Ni7Mo2 −
−
665H20, 665M20
−
−
−
4620, 4620H
20NiCrMo2-2
20NiCrMo2
20NiCrMo2-2
8620, 8620H
−
−
−
−
−
−
−
4320, 4320H
Nickel-Chromium-Molybdenum Nickel-Chromium-M olybdenum Steels 20Ni2Cr2Mo2 En 362 −
15Ni5Cr4Mo1
15NiCr1Mo12
En 353
20Ni7Cr2MO2
−
−
3
−
Fre Free Cutti utting ng Steel eels IS
Current 4431:1978 11C10S25
Obsolete 1570, 4431 11S25
14C14S14
14Mn1S14
1
805A20, 805H20, 805M20 815H17, 815M17
BS Obsolete 970:1956 970-1:1983
Current EN 10087:1999
Obsolete 1651:1988
DIN Current EN 10087:1999
SAE Current J403:1995
En 1A
220M07
10S20
10S20
10S20
−
En 32M
214A15 214M15
15SMn13
15S10
15SMn13
1118
Steels Steels for for Quenchi Quenching ng and and Temper Tempering, ing, and Flame and Induction Induction Hardening Hardening IS
Current 5517:1993 3930:1994
Obsolete 1570, 3930 5517
Carbon Steels 30C8 C30 (Class 3)
35C8 (Class 3A)
C35Mn75
40C8
C40
BS Obsolete 970:1956 970-1:1983
En 5, En 5A, En 5B, En 5C, En 5D, En 5K En 8A, En 8B En 8, En 8B,
DIN
SAE Current J403:1995 J404:1994 J1268:1995
Current EN 10 10083-1:1991 EN 10083-2:1991
Obsolete 17200:1987
Current EN 10083-1:1996 EN 10083-2:1996
080A30, 080M30, 080A32
C30, C30E, C30R
C 30, Ck 30, Cm 30
C30, C30E, C30R
1029, 1030
080A35, 080M36, 080A37 080A37, 080A40,
C35, C35E, C35R C40, C40E,
C 35, Ck 35, Cm 35 C 40, Ck 40,
C35, C35E, C35R C40, C40E,
1035
1038, 1038H,
En 8C, En 8D, En 8K En 8D
45C8 (Class 4)
C45
50C8
C50
55C8 (Class 5)
C55Mn75
En 43A, En 43B, En 43C En 9, En 9K, En43C
High-Manganese Carbon Steels 37C15 37Mn2 En 15, En 15A Chromium Steels 40Cr4 40Cr1
Chromium-Molybdenum Steel 42Cr4Mo2 40Cr1Mo28
080M40, 080A42
C40R
Cm 40
C40R
1039 1040
080A42, 080M46
C45, C45E, C45R
C 45, Ck 45, Cm 45
C45, C45E, C45R
080A47, 080M50
C50, C50E, C50R C55, C55E, C55R
C 50, Ck 50, Cm 50 C 55, Ck 55, Cm 55
C50, C50E, C50R C55, C55E, C55R
1042 1043 1045, 1045H, 1046 1049, 1050, 1053 1055
−
−
−
080A52, 070M55, 080A57 150M36, 150H36
1541, 1541H
En 18, En 18D
530A40, 530H40, 530M40
41Cr4
41Cr4
41Cr4
5140, 5140H
En 19A, En 19B, En 19C
708A40 708M40
42CrMo4
42CrMo4
42CrMo4
4140, 4140H, 4142. 4142H
5
Spring Steels IS Current Obsolete
BS
DIN
Obsolete
Current
Obsolete
SAE Current
Current
2507:1975 3431:1982 Carbon Steels 65C6
1570
970:1956
-
970-2:1988 5770:1981
-
17221:1988 17222:1979
J403:1995 J404:1994
C65
-
080A67
-
-
1065
70C6
C70
-
80C6
C80
En 42
-
070A78, 80
-
C 67, Ck 67 C 75, Ck 75 -
1070
C75
070A72, 70 070A78
-
75C6
En 42B, En 43E En 42, En 42C En 42C
Low Alloy Steels 50Cr4V2
50Cr1V23
En 47
-
735A51, 735H51
-
51CrV4
6
-
-
1074, 1075 1080
6150, 6150H
Structural Steels IS
Current
BS Obsolete
2062:1992 226 Unalloyed Structural Steels Fe 410 W A St 42
DIN
Obsolete
Current
Obsolete
SAE Current
Current
-
-
-
-
-
-
-
-
-
-
-
-
7
Valve Steels IS Current Obsolete
7494:1981
-
Martensitic Valve Steels X43Cr9Si3 Austenitic Valve Steel X53Cr22Mn9Ni4N -
BS Obsolete
DIN Current
Obsolete
Current
SAE Current
970:1956
970-4:1970
EN 10090:1998
17480:1992
EN 10090:1998
J775:1993
En 52
401S45
X45CrSi9-3
X45CrSi9-3
X45CrSi9-3
S65007 (Sil 1)
-
349S52
X53CrMnNiN21-9
-
X53CrMnNiN21-9
S63008 (21-4N)
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