1. M2 High Speed Tool Steel
Product Overview
M2 High Speed Tool Steel is the most popular"Standard"tungsten-molybdenum high-speed steel, characterized by its well-balanced combination of toughness, wear resistance, and red hardness. Unlike other high-speed steels, M2 maintains a fine and uniform carbide structure, which significantly enhances its resistance to chipping and provides superior grindability. Whether used for high-speed cutting tools or heavy-duty cold work punches, M2 delivers reliable performance and extended tool life under extreme thermal and mechanical stress.
M2 High Speed Tool Steel Chemical Composition (%)
| Carbon (C) | Tungsten (W) | Molybdenum (Mo) | Chromium (Cr) | Vanadium (V) | Cobalt (Co) | Other |
|---|
| 0.78-0.88 | 5.50-6.75 | 4.50-5.50 | 3.75-4.50 | 1.75-2.20 | - | Balance Fe |
Characteristics: This is a tungsten-molybdenum series high-speed steel. The addition of molybdenum partially replaces expensive tungsten, reducing cost while maintaining good performance and improving carbide distribution.
M2 High Speed Tool Steel Equivalent Steel Grades
M2 High Speed Tool Steel Delivery Condition
Typically supplied in annealed condition with a maximum hardness of HB 255. The surface is precision ground or turned to ensure good machinability and surface quality.
M2 High Speed Tool steel Characteristics
High Versatility: Offers an excellent balance of hardness, wear resistance, and toughness, making it the most widely used HSS.
Good Red Hardness: Can maintain high hardness up to approximately 500°C.
Good Wear Resistance: Contains about 2% vanadium, providing good耐磨性.
Good Grindability: Offers better grindability compared to high-vanadium HSS grades, making it easier to manufacture complex-shaped tools.
High Cost-Effectiveness: Excellent performance at a relatively low cost.
M2 High Speed Tool steel Applications
M2 is known as the"King of High-Speed Steels"due to its extremely wide range of applications:
Cutting Tools: Drills, taps, broaches, hobs, milling cutters, reamers, saw blades.
Cold Work Tools: Cold punching dies, punches, precision blanking dies.
High-Temperature Bearings: For applications with elevated operating temperatures.
High-Temperature Springs, etc.
M2 High Speed Tool steel Main Mill origin in China: Major special steel enterprises like Dongbei Special Steel, Baowu Special Steel, Tiangong International.
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