- Description
Description
What is M2 high speed steel?
M2 High Speed Steel, DIN 1.3343, HS6-5-2 is a general-purpose high-speed steel with good toughness, wear resistance, and high hardness.
It is one of the most commonly used HSS grades.
What is the Chemical Composition of M2 High Speed Steel?
M2 High speed steel is also known as DIN 1.3343, HS6-5-2.
The Chemical Composition of M2 High-Speed Steel, High-Speed Steel, DIN 1.3343, HS6-5-2 is given below:-
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.78 – 0.88 |
| Chromium (Cr) | 3.75 – 4.5 |
| Molybdenum (Mo) | 4.5 – 5.5 |
| Vanadium (V) | 1.75 – 2.2 |
| Tungsten (W) | 5.5 – 6.75 |
| Silicon (Si) | ≤ 0.75 |
| Manganese (Mn) | ≤ 0.40 |
| Sulfur (S) | ≤ 0.030 |
What are the properties and applications of M2 high speed steel?
M2 high speed steel has unique properties and applications are pointed below:-
Key Properties of M2
- Excellent toughness and wear resistance.
- High red hardness (maintains hardness at high temperatures).
- Versatile, used in various cutting tools.
Applications of M2
- Drills, taps, and milling cutters.
- Lathe tools, punches, and broaches.
- Cold and hot working dies.
What is M35 High Speed Steel (DIN 1.3243, HS6-5-2-5)?
M35 high speed steel is an improved version of M2 speed steel,
with added cobalt (Co) for better red hardness and wear resistance.
What is the Chemical Composition of M35 high speed steel?
The Chemical Composition of M35 (HS6-5-2-5) is listed below:-
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.88 – 0.94 |
| Chromium (Cr) | 3.8 – 4.5 |
| Molybdenum (Mo) | 4.5 – 5.5 |
| Vanadium (V) | 1.7 – 2.1 |
| Tungsten (W) | 5.8 – 6.5 |
| Cobalt (Co) | 4.5 – 5.0 |
| Silicon (Si) | ≤ 0.75 |
| Manganese (Mn) | ≤ 0.40 |
| Sulfur (S) | ≤ 0.030 |
What are the key or unique properties and applications of M35 high speed steel?
Following points are listed below for as its properties and applications:-
Key Properties of M35
- Higher wear resistance and hardness than M2.
- Increased red hardness due to cobalt.
- Better performance in high-speed cutting tools.
Applications of M35
- High-performance drills, taps, and end mills.
- Broaches and industrial knives.
- Aerospace and automotive cutting tools.
What is M45 High-Speed Steel (HS6-5-3-8)?
M45 grade of steel is a high-cobalt high-speed steel, offering superior red hardness, hardness retention, and wear resistance.
What is the Chemical Composition of M45 (HS6-5-3-8) high speed steel?
The chemical composition of M45 high speed steel are tabled below:-
Chemical Composition of M45 (HS6-5-3-8)
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.88 – 0.94 |
| Chromium (Cr) | 3.8 – 4.5 |
| Molybdenum (Mo) | 4.5 – 5.5 |
| Vanadium (V) | 2.5 – 3.2 |
| Tungsten (W) | 5.8 – 6.5 |
| Cobalt (Co) | 7.5 – 8.5 |
| Silicon (Si) | ≤ 0.75 |
| Manganese (Mn) | ≤ 0.40 |
| Sulfur (S) | ≤ 0.030 |
What are the unique properties and applications of M45 high speed steel?
The unique and valuable properties and applications of super grade M45 high speed steel are as follows:-
Key Properties of M45
- Superior red hardness (ideal for extreme conditions).
- High wear resistance due to higher vanadium and cobalt content.
- Very high hardness after heat treatment (up to 68 HRC).
Applications of M45
- Aerospace cutting tools.
- High-speed machining of hardened materials.
- Precision tools for high-wear applications.
Now, here is a small comparison summary of these three high speed steel grades are as below:-
Comparison Summary
| Property | M2 (1.3343) Steel | M35 (1.3243) Steel | M45 Steel |
|---|---|---|---|
| Hardness (HRC) | 62-64 | 64-66 | 66-68 |
| Wear Resistance | High | Very High | Extreme |
| Red Hardness | Good | Very Good | Excellent |
| Toughness | Excellent | Good | Moderate |
| Cobalt (Co) Content | 0% | 4.5-5.0% | 7.5-8.5% |
| Applications | General-purpose tools | High-performance cutting tools | Aerospace, extreme wear tools |
Conclusion
- M2 is a cost-effective, general-purpose high-speed steel.
- M35 has better red hardness and wear resistance due to cobalt.
- M45 is an ultra-high-performance steel for extreme cutting conditions.
Would you like recommendations on heat treatment, coatings, or machining?
Contact Us
For all your M2 High Speed Steel, DIN 1.3343, HS6-5-2, M35 High-Speed Steel DIN 1.3243, HS6-5-2-5
requirements, reach out to us at:-
📍 Milano Special Steel
📌 Location: Gurugram, Haryana (Near Manesar, Dharuhera, Bawal, and Bhiwadi)
🌍 Website: www.milanospecialsteel.com
📧 Email: [email protected]
📞 Contact: Available on request
We look forward to serving you with the best-quality steel solutions for your industrial needs.
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