TOOLS STEEL
| Description | Specification |
|---|---|
| AIR HARDENING | |
| A-2, A-6, A-8, A-10 | ASTM-A-681, QQT-570 |
| COLD WORKED | |
| D-2, D-3, D-4, D-5 | ASTM-A-681, QQT-570 |
| OIL HARDENING | |
| O-1, 0-2, 0-6, L-6 | ASTM-A-681, QQT-570 |
| SHOCK RESISTING | |
| S-1, S-2, S-5, S-7 | ASTM-A-681, QQT-570 |
| HOT WORKED | |
| H-11, H-12, H-13, H-21 | ASTM-A-681, QQT-570 |
| MOLD STEELS | |
| P-2, P-5, P-6, P-20 | ASTM-A-681, QQT-570 |
| WATER HARDENING | |
| W-1, W-2 | ASTM-A-681, QQT-570 |
