High Speed Tool Steel
(M-2) DIN 1.3343
Steel Properties: Standard high-speed steel grade. Its well-balanced alloy composition forms the basis of its high toughness and good cutting edge retention, rendering it suitable for a large variety of applications.
Applications: For all metal-cutting tools for roughing or finishing such as twist drills, diverse milling cutters, thread dies, broaches, reamers, countersinks, thread chasers, circular saw segments, shaping tools and woodworking tools. Also highly suitable for cold-forming tools such as cold extrusion rams and dies, as well as cutting and precision cutting tools, plastic moulds with elevated wear resistance and screws.
Hardness HB Max 269
| C(％) | S(％) | P(％) | Si(％) | Mn(％) | Cr(％) | Mo(％) | V(％) | W(％) |
|---|---|---|---|---|---|---|---|---|
| 0.86 ～ 0.94 | <0.030 | <0.030 | 0.20 ～ 0.45 | 0.20 ～ 0.40 | 3.75 ～ 4.50 | 4.50 ～ 5.50 | 1.60 ～ 2.20 | 5.90 ～ 6.75 |
(M-35)-DIN 1.3243
Steel Properties: The cobalt content in this high-performance high-speed steel results in high red hardness and tempering resistance. As a consequence, this grade is particularly suitable for conditions involving thermal stresses and discontinuous cutting.
Applications: Heavy-duty milling cutters of all kinds, highly stressed twist drills and taps, profile knives, machining of high-strength materials, broaches.
Hardness HB: Max 269
| C(％) | S(％) | P(％) | Si(％) | Mn(％) | Cr(％) | Mo(％) | V(％) | W(％) | Co(％) |
|---|---|---|---|---|---|---|---|---|---|
| 0.88 ～ 0.96 | <0.030 | <0.030 | 0.20～0.40 | 0.20～0.45 | 3.80 ～ 4.50 | 4.75 ～ 5.50 | 1.75 ～ 2.15 | 6.00 ～ 6.75 | 4.55 ～ 5.50 |
Chemical Analysis
Gaermany DIN | Typical Values % Min-Max | Delivery Conditions
| Grade | USA AISI | C(％) | S(％) | P(％) | Si(％) | Mn(％) | Cr(％) | Mo(％) | V(％) | W(％) | Co(％) | Heat Treatment | Hardness(HB) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.3343 | M-2 | 0.86 - 0.94 | <0.030 | ≤0.030 | 0.20 - 0.45 | 0.20 - 0.40 | 3.75 - 4.50 | 4.50 - 5.50 | 1.60 - 2.20 | 5.90 - 6.75 | - | Annealed | <255 |
| 1.3243 | M-35 | 0.88 - 0.96 | <0.030 | <0.030 | 0.20 - 0.40 | 0.20 - 0.45 | 3.80 - 4.50 | 4.75 - 5.50 | 1.75 - 2.15 | 6.00 - 6.75 | 4.55 - 5.50 | Annealed | <277 |
| 1.3247 | M-42 | 1.05 - 1.15 | - | - | 0.15 - 0.65 | 0.15 - 0.40 | 3.50 - 4.25 | 9.0 - 10.0 | 0.95 - 1.35 | 1.15 - 1.85 | 7.75 - 8.75 | Annealed | <285 |
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