AISI M2 High-Speed Werkzeugstahl: General-Purpose HSS
ASTM A600 · Published: 2026-06-02 · Updated: July 2026
AISI M2 is the most widely used high-speed steel (HSS) with 0.78-0.88% C, 3.75-4.5% Cr, 4.5-5.5% Mo, 5.5-6.75% W, and 1.6-2.2% V. The balanced Mo-W composition provides excellent hot hardness up to 560°C—enabling cutting speeds 3-4× higher than...
AISI M2 ist der meiste widely used hoch-geschwindigkeit steel (HSS) mit 0.78-0.88% C, 3.75-4.5% Cr, 4.5-5.5% Mo, 5.5-6.75% W, und 1.6-2.2% V. Der balanced Mo-W composition provides excellent heiß hardness auf zu 560°C—enabling cutting speeds 3-4× higher als carbon werkzeug steels. Sekundär hardening während triple tempering bei 540-560°C precipitates fine Mo-W-V carbides für maximum wear widerstand. Used für drill bits, end mills, taps, reamers, broaches, und lathe tools. Der molybdenum-based composition (M-series) ist tougher und less expensive als T-series (tungsten-based) HSS grades while providing equivalent heiß hardness.
Quick Facts
| Kategorie | Werkzeugstahl |
| Norm | ASTM A600 |
| Density | 8.10 g/cm³ |
| Yield Strength | 3,100 MPa (450 ksi) at 64-66 HRC |
| Tensile Strength | 3,800 MPa (551 ksi) at 64-66 HRC |
Global Equivalents & Cross-Reference
| Alternative Norm / Güte | Action |
|---|---|
| EN HS6-5-2C | Compare |
| DIN 1.3343 | Compare |
| SKH51 | Compare |
| W6Mo5Cr4V2 | Compare |
| JIS SKH51 | Compare |
Verwandt Materials
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Frequently Asked Questions
Wie tut M2 compare zu M42 hoch-geschwindigkeit steel?
M42 adds 8% cobalt für superior heiß hardness bei cutting temperatures über 600°C, making es preferred für machining stainless steels, titanium, und superalloys. M42 auch achieves 1-2 HRC higher hardness (66-68 HRC). M2 ist der economical allgemein-purpose HSS für carbon steels, alloy steels, und aluminum. M42 costs approximately 2-3× mehr als M2 due zu cobalt content.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu