Home > Our Products > Cold Rolled Steel Strips > Steel Grades
Hard Strips (India) offers the following spring steel materials :
Grades |
C % |
Mn % |
Si % (Max) |
S % (Max) |
P % (Max) |
Cr % |
V % |
Ni % |
Mo % |
C 45 |
0.42-0.50 |
0.50-0.80 |
0.4 |
0.045 |
0.045 |
|
|
|
|
C 50 |
0.47-0.55 |
0.60-0.90 |
0.4 |
0.045 |
0.045 |
|
|
|
|
C 55 |
0.50-0.60 |
0.60-0.90 |
0.35 |
0.025 |
0.035 |
|
|
|
|
C 65 |
0.60-0.70 |
0.60-0.90 |
0.35 |
0.025 |
0.035 |
|
|
|
|
C 75 |
0.70-0.80 |
0.60-0.90 |
0.35 |
0.025 |
0.035 |
|
|
|
|
C 80 |
0.75-0.85 |
0.60-0.90 |
0.35 |
0.025 |
0.035 |
|
|
|
|
SK85 |
0.80-0.90 |
0.10-0.50 |
0.10-0.35 |
0.03 |
0.03 |
max 0.30 |
|
max 0.25 |
|
SK95 |
0.90-1.00 |
0.10-0.50 |
0.10-0.35 |
0.03 |
0.03 |
max 0.30 |
|
max 0.25 |
|
C 98 |
0.95-1.05 |
0.30-0.60 |
0.10-0.35 |
0.04 |
0.04 |
|
|
|
|
C 120 |
1.10-1.30 |
0.30-0.60 |
0.25 |
0.03 |
0.03 |
0.20-0.50 |
|
|
|
50CrV4 |
0.47-0.55 |
0.70-1.10 |
0.40 |
0.035 |
0.035 |
0.90-1.20 |
0.10-0.25 |
|
|
75Cr1 |
0.70-0.80 |
0.60-0.80 |
0.15-0.35 |
0.03 |
0.03 |
0.30-0.40 |
|
|
|
75Cr25 |
0.70-0.78 |
0.60-0.80 |
Max 0.35 |
0.03 |
0.04 |
0.15-0.27 |
|
|
|
75Ni8 |
0.72-0.78 |
0.30 – 0.50 |
0.15 – 0.35 |
0.025 |
0.025 |
max 0.15 |
|
1.80-2.10 |
max 0.1 |
International Cross Reference
USA |
Germany |
Euronorm |
Great Britain |
United Kingdom |
Japan |
India |
Russia |
SAE/AISI |
DIN 17222 |
EN 10132 |
BS 1449 |
BS 970 |
JIS |
IS 2507 |
GOST |
1045 |
CK 45 |
|
|
EN 8D |
S45C |
45C 8 |
45 |
1050 |
CK 50 |
|
CS 50 |
|
S50C |
|
50 |
1055 |
CK 55 |
C55S |
|
EN 9 |
S55C |
55C 6 |
55 |
1060 |
CK 60 |
C60S |
CS 60 |
|
S60C / SUP11A |
|
60 |
1065 |
|
|
|
EN 42F |
S65C / SK7 |
65C 6 |
65 |
1070 |
CK 67 |
C67S |
CS 70 |
|
S70C |
70C 6 |
70 |
1074/1075 |
CK 75 |
C75S |
|
EN 42J |
S75C / SK6 / SUP3 |
75C 6 |
|
1080 |
|
|
CS 80 |
|
|
80C 6 |
|
1085 |
CK 85 |
C85S |
|
|
SK85 / SK5 |
85C 6 |
|
1095 |
CK 101 |
C100S |
CS 95 |
EN 44D |
SK95 / SK4 / SUP4 |
98C 6 |
|
|
|
C125S / 125Cr2 |
|
|
SKS81 / SK2 |
|
|
6150 |
51CrV4 |
51CrV4 |
735A50 |
EN 47 |
SUP 10 |
50Cr4V2 |
50HGFA |
|
75Ni8 |
75Ni8 |
|
|
SKS51 |
|
|
|
75Cr1 |
|
75Cr1 |
|
|
|
|
Other medium, high carbon & low alloy grades can be offered on request, subject to availability of the raw material.