* BS: 1971  † BS: 1501-1958

BS 970 (REVISED)

BS 970-1955

AIS/SAE

DIN

U.S.S.R.

JAPAN

IS

1970-1972

En. No.

Grade

Specification
 
  HIGH SPEED STEELS
BS 2*
-
M2
M2
-
-
T83MoW6Cr4V2
7291/1974
BT 1*
-
T1
E4-60/65W
-
-
T70W18Cr4V1
7291/1974
 
  STAINLESS & HEAT RESISTANCESTEELS
304S15
58E
304
X8CrNi1910
-
-
04C418Ni10
6529/1972
304S12
-
304L
X2CrNi189
-
-
02Cr18Ni11
6529/1972
310S24
-
310
X15CrNi2520
-
-
-
-
316S16
58J
316
X5ONiMo1812
-
-
04Cr17Ni12Mo2
6529/1972
316S12
-
316L
X20NiMo1812
-
-
02Cr17Ni12Mo2
6529/1972
845Ti†
-
316Ti
X10CrNiMoTi1810
-
-
04Cr17Ni12Mo2
6529/1972
321S12
588/C
321
X10CrNiMoTi1810
-
-
04Cr18Ni10Ti20
6529/1972
410S21
56A
410
X15Cr13
-
-
12Cr13
6529/1972
431S29
57
431
X22CrNi17
-
-
15Cr16Ni2
6529/1972
 
  TOOL STEELS
BD 2*
-
D2
X165CrV12
-
-
XT160Cr12
3749/1972
BD 3*
-
D3
X210Cr12
-
-
XT160Cr12
4430/1979
B 01*
-
01
-
-
-
T90Mn6WCr12
4430/1979
BH 11*
-
H11
38CrMoV51
-
-
XT35Cr5No1V3
3748/1978
BH 12*
-
H12
X37CrMoW51
-
-
XT35Cr5MoW1V30
3748/1978
BHG 13*
-
H13
X40CrMoV51
-
-
XT35Cr5Mov1
3748/1978
 
  CONSTRUCTIONAL STEELS
  1. Mn STEELS
150M19
14A
1024
12Mn6
-
-
20C15
5517/1978
15M36
15
1041
36Mn5
-
-
37C15
5517/1978
  2. Cr STEELS
530A32
18B
-
34Cr4
-
35X
-
-
530A36
18C
5135
37Cr4
-
-
-
-
530A40
18D
5140
41Cr4
-
40X
40Cr4
5517/1978
523A17
206
5015
15Cr3 ;
-
15X
15Cr65
4368/1967
534A99
31
52100
100Cr6
-
-
103Cr2
4398/1972
  3. Mo STEELS
240 **
-
ASTM A 182GrF1
-
-
-
-
-
  4. Mn STEELS
527A9
207
-
15Cr3
-
15X
15Xr65
4432/1967
-
-
-
16MnCr5
-
18X
17Mn1Cr95
4368/1967
-
-
-
20MnCr5
-
18G
20MnCr1
4368/1967
  5. Mn Mo STEELS
605M36
16
-
-
-
-
35Mn6M03
5517/1978
  6. Cr Mo STEELS
-
-
4130
25Crmo4
-
30XM
-
-
709M40
19
4140
-
-
30XM/35XM
40CrMo3
5517/1978
708M40/708A37
19A/19B
ASTM A 320L7
42CrMo4
-
-
-
-
Bs 1503/622
-
ASTM A 182F22
10CrMo910
-
-
-
-
722M24
408
-
-
-
-
25Cr13Mo6
5517/1978
BS 1628 Gr8
-
ASTM A182FrF5
-
-
-
-
-
BS 1506/661
-
ASTM A193GrB16
45CrMoV67
-
-
-
-
905M31
41A
-
34CrA1Mo6
-
-
40Cr7A110Mo2
5517/987
  7. Ni STEELS
-
22
-
34Ni5
-
-
T40Ni14
3749/1978
  8. Ni Mo STEELS
665 M 17
34
4617
-
-
-
-
-
  9. Ni Cr STEELS
665M13
36A
-
22NiCr14
-
20X2H4A
13Ni3Cr80
4368/1967
640M40
111
3140
-
-
40XH
35Ni5Cr2
5517/1978
635M15
351
-
-
-
-
16Ni80Cr60
4432/1967
635M17
352
-
15CrNi6
-
20XH
16Ni1Cr80
4432/1967
  10. Ni Cr Mo STEELS
817M40
24
4340
34CrNiMo6
-
-
40Ni6Cr4Mo3
5517/1978
817M31
25
-
28MiCr10
-
30XH3A
31ni10Cr3Mo6
5517/1978
816M40
110
-
-
-
-
40Ni6Cr4Mo2
5517/1978
815M17
353
-
-
-
-
15NiCr1Mo12
4432/1967
820M17
354
-
-
-
-
15Ni2Ce1Mo15
4432/1967
822M17
355
-
-
-
-
16NiCr2Mo20
4432/1967
805M20
362
8620
-
-
-
-
-
 
  CONSTRUCTIONAL STEELS
  1. Si Mn STEELS
250A53
45
9255
55Si7
-
55C2
T55Si7
3749/1978
250A58
45A
9260
-
-
-
-
-
  2. Cr V STEELS
735A50
47
6150
-
-
-
T50Cr4V2
3749/1978
  3. Si Cr STEELS
527A60
48A
-
-
-
-
T55Cr3
3749/1978
  4. FREE CUTTING STEELS
216M36
15AM
1137
-
-
50XGa
40Mn15S12
3930/1979
212M36
8AM
1140
-
-
-
40C10S18
4431/1979
220M07
1A
1213
-
-
-
11C10S25
4431/1978
 
  CARBON STEELS
-
32B
1015
C-15
-
15
Cl.1A
1875/1978
070M20
3A
1020
C-20
S15c/S20c
20
Cl.2
1875/1978
-
4
Lfl/1026
-
-
25
Cl.2A
1875/1978
-
5D
1030
-
-
30
Cl.3
1875/1978
080M40
8
1040
-
-
40
-
-
080A47
43B
1045
Ck45
S45C
45
Cl.4
1875/1978
070M55
9
1055
Ck55
-
55
Cl.5
1875/1978
060A62
43D
1060
Ck60
-
60
-
-
-
42B
1065
-
-
65
C1.6
1875/1978
BS-British standard specification     DIN- German standard specification     JIS- Japanes industrial standard
AIS/SAE-American standard specification     IS-Indian standard specification     U.S.S.R.