AISI M2/DIN 1.3343 COLD DRAWN HIGH SPEED STEEL BAR
M2 hss is molybdenum based high-speed steel in tungsten–molybdenum series. Carbides in M2 high speed steel bar are small and evenly distributed.
|Standard||Grade||Chemical composition (%)|
Cold drawn round bar: dia4mm-dia100mm
Available Heat Treatment
Hot work temperature: (1) Start:1040 °C -1150°C (2) End: 930 °C
Annealing temperature: 820 °C – 870 °C
Hardness after annealing HBW: 212-241
Quenching temperature: 1190 °C -1230 °C
Cooling medium: oil, air cooling/ salt bath
Tempering temperature: 540 °C – 600 °C
Hardness after tempering HRC: 65-60
1. High wear resistance.
2. High toughness combined with good cutting powers
3. After heat treatment, its hardness is the same as T1, but its bending strength can reach 4700 MPa, and its toughness and thermo-plasticity are higher than T1 by 50%.
It is usually used to manufacture a variety of tools, such as drill bits, forming tools, cutting tools, milling cutters, broaches, taps and reamers, etc.
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