|
|
| 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 |
| |
