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| O1 steel flats | |||||||
| Chemical Composition(%) | |||||||
| C | Si | Mn | P | S | Cr | V | W |
| 0.85-1.00 | 0.10-0.50 | 1.00-1.40 | ≤0.030 | ≤0.030 | 0.40-0.60 | ≤0.30 | 0.40-0.60 |
| Specialty | |||||||
Refined steel of vacuum and take-off air, the quality of steel is pure; deliver products after anneal, steel products are easy to be cut and machined; the rigidity is high after quench, good endurance; the dimension is stable, small distortion. | |||||||
| Use | |||||||
| 1.All kinds of cutting tools, pressing mold, wood-FT mold, screw thread tools, plastic molds. | |||||||
| Heat Treatment | |||||||
| 1.To anneal after eliminate stress: 600-650°c | |||||||
| 2.Quench: 800-840 °c oil cooling | |||||||
| 3.Re- tempering: 180-200`C air cooling | |||||||
| Melting Process | |||||||
| 1. EAF: Electric Furnace+LF+VD(Optional) | |||||||
| 2. ESR: Electric Furnace+LF+VD+Eleroslag Remelted(Optional) | |||||||
| UT Class | |||||||
| According to Standard of SEP 1921/84,100% Volume, Level C/c, D/d or E/e | |||||||
| Tolerance on Quantity | |||||||
| +/-10% Per Size | |||||||