Carbon Steel
Plain carbon steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
1 |
15C8 |
0.10-0.20 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
130-150 BHN |
2 |
35C8 |
0.30-0.40 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
170-200 BHN |
3 |
C20 |
0.15-0.25 |
0.60-0.90 |
0.05-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
120-150 BHN |
4 |
C30 |
0.25-0.35 |
0.60-0.90 |
0.05-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
160-190 BHN |
5 |
C35 |
0.30-0.40 |
0.60-0.90 |
0.05-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
170-200 BHN |
6 |
C40 |
0.35-0.45 |
0.60-0.90 |
0.05-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
170-210 BHN |
7 |
C45 |
0.40-0.50 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
180-210 BHN |
8 |
C50 |
0.45-0.55 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
180-220 BHN |
9 |
EN8 |
0.35-0.45 |
0.60-10.00 |
0.10-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
170-200 BHN |
10 |
EN8D |
0.40-0.45 |
0.70-00.90 |
0.10-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
180-210 BHN |
11 |
EN9 |
0.50-0.60 |
0.50-0.80 |
0.15-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
180-230 BHN |
12 |
EN32B |
0.10-0.18 |
0.60-1.0 |
0.05-0.35 |
0.05 Max |
0.05 Max |
- |
- |
- |
- |
- |
130-160 BHN |
13 |
SAE-1008 |
0.10 Max |
0.30-0.50 |
0.10 Max |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
120-150 BHN |
14 |
SAE-1010 |
0.08-0.13 |
0.30-0.60 |
0.05-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
120-140 BHN |
15 |
SAE-1018 |
0.15-0.20 |
0.60-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
130-160 BHN |
16 |
SAE-1020 |
0.18-0.23 |
0.30-0.60 |
0.15-0.35 |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
130-150 BHN |
17 |
SAE-1025 |
0.22-0.28 |
0.30-0.60 |
0.15-0.35 |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
130-160 BHN |
18 |
SAE-1040 |
0.37-0.44 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
170-200 BHN |
19 |
SAE-1045 |
0.43-0.50 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
170-230 BHN |
20 |
SAE-1050 |
0.48-0.55 |
0.60-0.90 |
0.15-0.35 |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
180-220 BHN |
21 |
ASTM-105 |
0.35 Max |
0.6-1.0 |
0.10-0.35 |
0.05 Max |
0.04 Max |
- |
- |
- |
- |
- |
130-180 BHN |
Carbon Mangnese Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
22 |
20MN2 |
0.16-0.24 |
1.30-1.70 |
0.10-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
140-170 BHN |
23 |
27MN2 |
0.22-0.32 |
1.30-1.70 |
0.10-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
150-180 BHN |
24 |
EN15 |
0.30-0.40 |
1.30-1.70 |
0.10-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
180-220 BHN |
25 |
SAE-1541 |
0.38-0.43 |
1.30-1.70 |
0.10-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
190-230 BHN |
26 |
SAE-1524 |
0.19-0.25 |
1.35-1.65 |
0.15-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
180-220 BHN |
27 |
ST-52.3 |
0.16-0.22 |
1.30-1.65 |
0.15-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
190-220 BHN |
Case Hardening Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
28 |
16MNCR5 |
0.14-0.19 |
1.0-1.3 |
0.10-0.40 |
0.035 Max |
0.035 Max |
0.80-1.10 |
- |
- |
- |
- |
170-190 BHN |
29 |
20MNCR5 |
0.17-0.22 |
1.10-1.40 |
0.15-0.40 |
0.035 Max |
0.035 Max |
1.0-1.10 |
- |
- |
- |
- |
170-210 BHN |
30 |
15CR3 |
0.12-0.18 |
0.40-0.60 |
0.15-0.40 |
0.035 Max |
0.035 Max |
0.40-0.70 |
- |
- |
- |
- |
160-200 BHN |
31 |
SAE-8617 |
0.15-0.20 |
0.70-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.40-0.60 |
0.40-0.70 |
0.15-0.25 |
- |
- |
160-200 BHN |
32 |
SAE-8620 |
0.18-0.23 |
0.70-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.40-0.60 |
0.40-0.70 |
0.15-0.25 |
- |
- |
165-210 BHN |
33 |
EN-351 |
0.10-0.20 |
0.6-1.0 |
0.15-0.035 |
0.035 Max |
0.035 Max |
0.40-0.80 |
0.60-1.0 |
.10 Max |
- |
- |
170-200 BHN |
34 |
EN-353 |
0.20 Max |
0.5-1.0 |
0.05-0.035 |
0.035 Max |
0.035 Max |
0.75-1.25 |
1.0-1.5 |
0.08-0.15 |
- |
- |
180-215 BHN |
Ball Bearing Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
35 |
EN-31 |
0.9-1.20 |
0.30-0.75 |
0.15-0.35 |
0.035 Max |
0.035 Max |
1.0-1.6 |
- |
- |
- |
- |
290-340 BHN |
36 |
SAE-52100 |
0.98-1.10 |
0.25-0.45 |
0.15-0.30 |
0.025 Max |
0.025 Max |
1.30-1.60 |
- |
- |
- |
- |
290-340 BHN |
Free/Semi Free Cutting Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
37 |
EN-1A |
0.07-0.15 |
0.8-1.2 |
0.10 Max |
0.20-0.30 |
0.07 Max |
- |
- |
- |
- |
- |
130-140 BHN |
38 |
EN-15AM |
0.30-0.40 |
1.30-1.70 |
0.25 Max |
0.12-0.2 |
0.06 |
- |
- |
- |
- |
- |
180-230 BHN |
39 |
EN-8M |
0.35-0.45 |
1.0-1.3 |
0.25 Max |
0.12-0.20 |
0.06 |
- |
- |
- |
- |
- |
170-200 BHN |
Oil Hardening Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
40 |
40CR4 |
0.38-0.44 |
0.60-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
- |
- |
- |
230-255 BHN |
41 |
41CR4 |
0.38-0.45 |
0.60-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
- |
- |
- |
230-260 BHN |
42 |
25CRMO4 |
0.24-0.29 |
0.50-0.90 |
0.15-0.40 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
0.15-0.30 |
- |
- |
240-260 BHN |
43 |
31CR4 |
0.28-0.35 |
0.60-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
- |
- |
- |
220-250BHN |
44 |
42CRMO4 |
0.38-0.45 |
0.60-0.80 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
0.15-0.30 |
- |
- |
280-310 BHN |
45 |
SAE-4140 |
0.38-0.43 |
0.75-1.0 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
0.15-0.25 |
- |
- |
280-310 BHN |
46 |
SCM-435 |
0.33-0.38 |
0.60-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
0.15-0.30 |
- |
- |
260-290 BHN |
47 |
B16 |
0.36-0.47 |
0.45-0.70 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.80-1.15 |
- |
- |
- |
- |
250-280 BHN |
48 |
31CRV3 |
0.28-0.35 |
0.40-0.60 |
0.25-0.40 |
0.035 Max |
0.035 Max |
0.40-0.70 |
- |
- |
0.07-0.12 |
- |
190-230 BHN |
49 |
34CR4 |
0.32-0.37 |
0.60-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
0.90-1.20 |
- |
- |
- |
- |
180-220 BHN |
50 |
EN-16 |
0.30-0.40 |
1.30-1.80 |
0.10-0.35 |
0.035 Max |
0.035 Max |
- |
- |
0.20-0.35 |
- |
- |
210-235 BHN |
51 |
EN-18 |
0.35-0.45 |
0.60-0.90 |
0.10-0.35 |
0.035 Max |
0.035 Max |
0.85-1.15 |
- |
- |
- |
- |
230-260 BHN |
52 |
EN-19 |
0.35-0.45 |
0.50-0.80 |
0.10-0.35 |
0.035 Max |
0.035 Max |
0.90-1.50 |
- |
0.20-0.40 |
- |
- |
290-320 BHN |
53 |
EN-24 |
0.35-0.45 |
0.45-0.70 |
0.10-0.35 |
0.035 Max |
0.035 Max |
0.90-1.40 |
1.30-1.80 |
0.20-0.35 |
- |
- |
320-350 BHN |
54 |
EN-36C |
0.12-0.18 |
0.30-0.60 |
0.10-0.35 |
0.035 Max |
0.035 Max |
0.60-1.10 |
3.0-3.75 |
0.10-0.25 |
- |
- |
240-270 BHN |
55 |
EN-45A |
0.55-0.65 |
0.70-1.00 |
1.70-2.0 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
- |
250-290 BHN |
56 |
SAE-4042 |
0.40-0.45 |
0.70-0.90 |
0.15-0.35 |
0.035 Max |
0.035 Max |
- |
- |
2.0-3.0 |
- |
- |
320-350 BHN |
57 |
EN-47 |
0.45-0.55 |
0.50-0.80 |
0.50 Max |
0.040 Max |
0.040 Max |
0.80-1.20 |
- |
- |
0.15 Max |
- |
260-310 BHN |
Boron Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
58 |
10B-21 |
0.18-0.23 |
0.80-1.20 |
0.15-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
0.0005-0.003 |
130-150 BHN |
59 |
15B-25 |
0.19-0.25 |
1.35-1.65 |
0.15-0.30 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
0.0005-0.003 |
150-180 BHN |
60 |
27MNCRB5 |
0.24-0.30 |
1.10-1.40 |
0.040 Max |
0.040 Max |
0.035 Max |
0.30-0.60 |
- |
- |
- |
0.00008-0.005 |
230-270 BHN |
61 |
15B-41 |
0.38-0.43 |
1.30-1.70 |
0.10-0.35 |
0.035 Max |
0.035 Max |
- |
- |
- |
- |
0.0005-0.003 |
190-240 BHN |
Austenitic Stainless Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
62 |
AISI-304 |
0.08 Max |
2.0 Max |
1.0 Max |
0.04 Max |
0.045 Max |
18.0-20.0 |
8.0-10.5 |
- |
- |
- |
- |
63 |
AISI-316 |
0.08 Max |
2.0 Max |
1.0 Max |
0.04 Max |
0.045 Max |
16.0-18.0 |
10.0-14.0 |
2.0-3.0 |
- |
- |
- |
Martensitic Stainless Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
64 |
AISI-410 |
0.15 Max |
1.0 Max |
1.0 Max |
0.03 Max |
0.04 Max |
11.5-13.5 |
- |
- |
- |
- |
330-370 |
65 |
AISI-420 |
0.15 Max |
1.0 Max |
1.0 Max |
0.03 Max |
0.04 Max |
12.0-14.0 |
- |
- |
- |
- |
340-380 |
66 |
AISI-431 |
0.20 Max |
1.0 Max |
1.0 Max |
0.03 Max |
0.04 Max |
15.0-17.0 |
1.25-2.50 |
- |
- |
- |
380-410 |
Tool Steel
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
67 |
H11 |
0.32-0.42 |
0.30-0.40 |
0.85-1.15 |
0.035 Max |
0.035 Max |
4.75-5.25 |
- |
1.25-1.75 |
0.30-0.50 |
- |
340-380 |
68 |
H13 |
0.37-0.43 |
0.30-0.40 |
0.90-1.20 |
0.035 Max |
0.035 Max |
4.80-5.50 |
- |
1.20-1.50 |
0.90-1.10 |
- |
340-380 |
69 |
D2 |
1.4-1.6 |
0.30-0.50 |
0.30-0.50 |
0.035 Max |
0.035 Max |
11.0-13.0 |
- |
0.70-1.20 |
0.70-0.80 |
- |
- |
70 |
D3 |
2.0-2.25 |
0.30 Max |
0.30 Max |
0.035 Max |
0.035 Max |
11.0-13.0 |
- |
- |
- |
- |
- |
Hot Forging Die Blocks
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
71 |
DB6 |
0.50-0.60 |
0.65-0.80 |
0.15-0.35 |
0.035 Max |
0.035 Max |
1.0-1.20 |
1.55-1.70 |
0.40-0.50 |
0.07-0.15 |
- |
- |
Spring Steels
S.NO |
GRADE |
C |
MN |
SI |
S |
P |
Cr |
Ni |
Mo |
V |
B |
HARDNESS |
72 |
SUP9 |
0.52-0.58 |
0.65-0.95 |
0.15-0.35 |
0.030 Max |
0.030 Max |
0.65-0.95 |
- |
- |
- |
- |
200-240 |
73 |
SUP11 |
0.48-0.53 |
0.75-1.00 |
0.15-0.30 |
0.035 Max |
0.04 Max |
0.40-0.60 |
- |
- |
- |
0.0005-0.003 |
230-260 |