SHANGHAI UNITE STEEL
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M3 High Speed Tool Steel, high speed steel,high speed steels, Dia: 2-400mm
Application:
It Is widely used for manufacture of metal-cutting tools, cold-forming tools, such as cold extrusion rams and dies, as well as for cutting and precision cutting tools
Chemical composition(%):
| C | Si | Mn | P | S | Cr | Mo | V | W |
| 1.00 - 1.10 | 0.20 - 0.45 | 0.15 - 0.40 | 0.03 max | 0.03 max | 3.80 - 4.50 | 4.75 - 6.50 | 2.25 - 2.75 | 5.00- 6.75 |
Delivery Condition:
| GB/T1299-2000 | DIN | AISI | |
| Annealed (HB) | <=255 | 240~300 | 212~241 |
Size available:
Round and Square Bar: 2mm-400mm
Flat: thickness:0.6-250mm, width:30-810mm
Length Random Length, Fixed Length, etc.
Mechanical Property
Hot work temperature: (1) Start:1150 °C (2) End: 950 °C
Annealing temperature: 800 °C - 880 °C
Hardness after annealing HBS: ≤262
Quenching temperature: 1200 °C
Quenching medium: oil
Tempering temperature: 560 °C
Hardness after quenching and tempering HRC: ≥64
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