| Standards | Spring Steel-Medium Carbon Steel | Spring Steel High Carbon Steel | St Steel |
|---|---|---|---|
| Indian Standard | IS4454-Part 1 ,Grade 2 | IS 4454 Part1,Grade-3 | IS 4454 Part4 |
| Equvalent International Standards | ASTM A227 | ASTM A 228 | AISI 302 |
| UNI3823 Class B | UNI-3823 Class C | AISI 304 | |
| DIN 17223-1-1.0600 | DIN 17223-1-1.0200 | ASTM A 313 | |
| DIN 2076-B | DIN 2076-C | DIN 17224 | |
| EN 10270-1(SM,DM) | EN 10270-1(SH,DH) | EN 10270-3 | |
| JIS-3521 | JIS-3522 |