PROPRIETARY Micro-Melt M3 Class 2 Alloy Tool steels
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PROPRIETARY Micro-Melt M3 Class 2 Alloy Chemical Composition
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PROPRIETARY Micro-Melt M3 Class 2 Alloy Physical Properties
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PROPRIETARY Micro-Melt M3 Class 2 Alloy Heat Treatments
- Annealing: heat slowly to 857/885°C (1575°F/1625°F), hold until the entire mass is heated through, and cool slowly (not to exceed 11°C [20°F] per hour) in the furnace to about 538°C (1000°F), after which the cooling rate may be increased.
Hardening: preheat at 816/871°C (1500/1600°F) in a neutral salt bath. After thorough preheating, transfer to a furnace with a temperature maintained at 1204/1232°C (2200/2250°F) and oil quench. Small sizes, under about 25.4 mm (1") in diameter, or delicate sections may be hardened by cooling in still air. It is also acceptable to quench in molten salt at temperatures of 548/593°C (1000/1100°F), equalizing for 5 minutes per 25.4 mm, followed by air cooling.
Stress Relieving: to relieve the strains of machining, heat slowly to 621/677°C (1150/1250°F), allow to equalize, then cool in still air. Tempering: the tempering temperature may be varied according to the desired hardness but is usually in the range of 538/566°C (1000/1050°F).
PROPRIETARY Micro-Melt M3 Class 2 Alloy International Equivalent Materials
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- 9Composition
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- 5Physical Properties
- 1Heat Treatment
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