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| Customization: | Available |
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| Standard: | AISI, ASTM, GB, JIS, DIN |
| Technique: | Cold Work/Pre-Hardened |
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DIN 1.3343 (M2 / SKH51) high-speed steel bar is commonly used for manufacturing cutting tools that demand high hardness, wear resistance, and toughness. It is ideal for drills, end mills, taps, saw blades, and other precision tooling. The material ensures excellent edge retention and stable performance in both machining and mold-making applications. OEM dimensions and custom lengths are available upon request.
| ZEICIN Grade | GB | ASTM | JIS | DIN |
| M2 | W6Mo5Cr4V2 | M2 | SKH51 | 1.3343 |
| C | Cr | Mn | Si | Mo | V |
| 0.80-0.90 | 3.80~4.40 | 0.15-0.40 | 0.20-0.45 | 4.50-5.50 | 1.75~2.20 |
| Co | S | P | Ni | Nb | W |
| - | ≤0.030 | ≤0.030 | - | - | 5.50-6.75 |
| Process | Temperature (°C) | Soaking Time | Cooling Method | Notes |
|---|---|---|---|---|
| Annealing | ~870°C | Fully soaked | Furnace cool to ~480°C, then air cool | Approx. 241 HB hardness after anneal |
| Stress Relief | 650-680°C | 2 hours per inch thickness | Slow cooling (furnace preferred) | For unquenched material |
| Hardening | 1550 → 1850°C,then: • 2150-2200°C (for toughness)• 2250-2275°C (for hardness) | Few to 15 minutes | Oil / air / hot salt quenching | Select temp based on required property |
| Tempering | 540-565°C | 2 hours × 2-3 times | Air cool between tempers | Double temper required, triple preferred |
Main Features:
1. High Hardness & Wear Resistance
With proper heat treatment, this HSS bar achieves a hardness of 63-66 HRC, making it ideal for manufacturing drills, taps, end mills, and other cutting tools requiring long-lasting durability.
2. Excellent Red Hardness
Retains hardness and strength at elevated temperatures, ensuring stable performance during high-speed cutting and machining operations.
3. Good Toughness & Machinability
Offers a well-balanced composition that ensures both toughness and good grindability, suitable for precision tooling and mold applications.
4. International Standards
Equivalent to DIN 1.3343 / ASTM M2 / JIS SKH51, this grade is widely recognized and used in the global tool steel industry.
Production process
Applications of M2 High Speed Tool Steel:
M2 high-speed steel is primarily used in the manufacturing of a wide range of cutting tools due to its excellent hardness, wear resistance, and toughness.
Typical applications include:
Twist drills
Reamers
Taps
Milling cutters
Broaches
Metal saw blades
Cold forming tools (e.g., extrusion punches and dies)
Punches and dies
Industrial knives
Plastic molds requiring high wear resistance
Precision screws and components
Q1: Do you accept trial orders?
A1: Yes, we accept trial orders, provided that the required size and model are in stock.
Q2: What is your delivery time?
A2: If the products are in stock, the delivery time is generally 5-15 days. If the products are out of stock, the delivery time may range from 15-20 days, depending on the order quantity.
Q3: Do you offer discounts for bulk orders?
A3: Yes, we offer discounts for bulk orders. The specific discount will depend on the order quantity and terms of cooperation. Please feel free to contact us for more details.
Q4: What is your product packaging like?
A4: Our products are packaged in standard industrial packaging to ensure safety during transportation. If you have specific packaging requirements, please let us know when placing the order, and we will package your items accordingly.
Q5: What payment methods do you support?
A5: We accept a variety of payment methods, including T/T, L/C, Alipay, PayPal, etc. The specific payment method can be arranged flexibly based on the order amount and customer needs.
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