EQUIVALENT STEEL GRADES.doc

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July 18, 2002 Comparison of Grades of Steel Specified in the Indian Standards with Nearest Equivalent Grades Specified in other National Standards 1

Ball and Roller Bearing Steel IS BS Current Obsolete Obsolete 4398:1994 1570 970:1956 970-1:1983 Chromium Steel 104Cr6 105Cr1 2 Case Hardening Steels IS Current Obsolete 4432:1988 1570, 4432, 5517 Carbon Steels 10C4 C10 15C8 (Class 1A) 20C8 (Class 2)

En 31

C15Mn75 C20

3D

SAE Current J404:1994

Obsolete 17230:1980

Current EN ISO 683-17:1999

100Cr6

100Cr6

100Cr6

Current EN 10084:1998

Obsolete 17210:1986

Current EN 10084:1998

045A10, 045M10 080A15, 080M15 070M20

C10E, C10R C16E C16R -

C 10, Ck 10 −

1010, 1012 1018

-

C10E, C10R C16E C16R -

535A99

BS Obsolete 970:1956 970-1:1983

En 2E, En 32A En 32C

DIN Current EN ISO 683-17:1999

DIN

E52100 SAE Current J403:1995 J404:1994 J1268:1995

1018, 1019, 1021, 1022

Chromium Steels 15Cr3 15Cr65

En 206

523H15, 523M15

17Cr3

17Cr3

17Cr3

−

Chromium-Manganese Steels 16Mn5Cr4 17Mn1Cr95

−

590H17, 590M17 −

16MnCr5

16MnCr5

16MnCr5

−

20MnCr5

20MnCr5

20MnCr5

−

665H20, 665M20

−

−

−

4620, 4620H

805A20, 805H20, 805M20 815H17, 815M17 −

20NiCrMo2-2

20NiCrMo2

20NiCrMo2-2

8620, 8620H

−

−

−

−

−

−

−

4320, 4320H

20Mn5Cr5 20MnCr1 Nickel-Molybdenum Steel 20Ni7Mo2 −

− −

Nickel-Chromium-Molybdenum Steels 20Ni2Cr2Mo2 En 362 − 15Ni5Cr4Mo1

15NiCr1Mo12

En 353

20Ni7Cr2MO2

−

−

3

Free Cutting Steels IS Current Obsolete 4431:1978 1570, 4431 11C10S25 11S25 14C14S14 14Mn1S14

BS Obsolete 970:1956 970-1:1983 En 1A En 32M

DIN Current EN 10087:1999

220M07 10S20 214A15 15SMn13 214M15 1 Steels for Quenching and Tempering, and Flame and Induction Hardening IS BS Current Obsolete Obsolete Current 5517:1993 1570, 970:1956 970-1:1983 EN 10083-1:1991 3930:1994 3930 EN 10083-2:1991 5517 Carbon Steels 30C8 C30 En 5, 080A30, C30, (Class 3) En 5A, 080M30, C30E, En 5B, 080A32 C30R En 5C, En 5D, En 5K 35C8 C35Mn75 En 8A, 080A35, C35, (Class 3A) En 8B 080M36, C35E, 080A37 C35R 40C8 C40 En 8, 080A37, C40, En 8B, 080A40, C40E,

Obsolete 1651:1988

Current EN 10087:1999

SAE Current J403:1995

10S20 15S10

10S20 15SMn13

− 1118

DIN

SAE Current J403:1995 J404:1994 J1268:1995

Obsolete 17200:1987

Current EN 10083-1:1996 EN 10083-2:1996

C 30, Ck 30, Cm 30

C30, C30E, C30R

1029, 1030

C 35, Ck 35, Cm 35 C 40, Ck 40,

C35, C35E, C35R C40, C40E,

1035 1038, 1038H,

45C8 (Class 4)

C45

50C8

C50

55C8 (Class 5)

C55Mn75

En 8C, En 8D, En 8K En 8D

080M40, 080A42

C40R

Cm 40

C40R

1039 1040

080A42, 080M46

C45, C45E, C45R

C 45, Ck 45, Cm 45

C45, C45E, C45R

En 43A, En 43B, En 43C En 9, En 9K, En43C

080A47, 080M50

C50, C50E, C50R C55, C55E, C55R

C 50, Ck 50, Cm 50 C 55, Ck 55, Cm 55

C50, C50E, C50R