CarTech Micro-Melt M3 Class 2 Steel

CarTech Micro-Melt M3 Class 2 Steel

Steel name: CarTech Micro-Melt M3 Class 2
Diagram No.: 2312
UNS designation: T11323
AISI/SAE designation: M3
Chemical composition in weight %: 1.27% C, 0.55% Si, 0.30% Mn, max. 0.030% S, 4.20% Cr, 5.00% Mo, 3.10% V, 6.25% W
Steel group: PM high speed steels
Properties: CarTech Micro-Melt M3 Class 2 alloy is a powder metal tungsten-molybdenum high speed steel possessing the superior wear resistance characteristics required for difficult cutting operations. The advantages of CarTech Micro-Melt premium powder high speed steels include ease of grinding, response to heat treatment, more uniform structure, greater wear resistance and improved toughness.
Applications: Broaches, form tools, drills, counterbores, milling cutters, end mills, chasers, taps, lathe tools, planer tools, reamers.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Preheat at 1500/1600°F (816/871°C) in a neutral salt bath. After thorough preheating, transfer to a furnace with a temperature maintained at 2200/2250°F (1204/1232°C) and oil quench. Small sizes, under about 1" (25.4 mm) 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 1000/1100°F (548/593°C), equalizing for 5 minutes per inch, followed by air cooling.
Tempering: Tools should be tempered immediately after the completion of the quench. The tempering temperature may be varied according to the desired hardness but is usually in the range of 1000/1050°F (538/566°C). Triple tempering is always suggested.
Diagram note: No data

Effect Tempering Temperature on Hardness

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CCT and TTT Diagram Calculating Service
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Non-Metallic Inclusions in Steel
Semiconductor Etchants

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