M3:2 (P23 Jet High-Speed Steel) or M3/2 is a high-performance tungsten-molybdenum family high-speed steel characterized by high hardness, excellent wear resistance and retention of the cutting edge at elevated temperatures. Its greater content of molybdenum and vanadium than traditional high-speed steels yield better abrasion resistance, edge retention, and thermal stability. These characteristics render M3:2 particularly well-suited for high-extreme-wear applications, such as precision cutting tools and heavy-duty machining. ASP 2023 is a universal steel number for the remaining world for industrial markets.
P23 Jet High-Speed Steel (HSS) is a high-grade powder high-speed steel that is designed for demanding applications requiring superior performance over time. This steel is produced in our factory through two innovative processes:
| Execution Standard | ZEICIN Grade | GB | AISI | JIS | DIN |
|---|---|---|---|---|---|
| GB/T9943-2008 | P23 | CW6Mo5Cr4V3 | M3:2 | SKH53 | 1.3344 |
| C | W | Mo | Cr | V | Co | Al | Mn | Si | S | P |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.25~1.32 | 5.90~6.70 | 4.70~5.20 | 3.75-4.50 | 2.70~3.20 | － | － | 0.15-0.40 | ≤0.70 | ≤0.03 | ≤0.03 |
The heat treatment process significantly enhances M3:2 high-speed steel’s hardness, wear resistance, and toughness. The standard heat treatment process includes Annealing, Quenching, and Tempering:
| Process Step | Temperature Range | Key Details | Result/Target |
|---|---|---|---|
| Annealing | 820°C – 860°C | – Slow furnace cooling to relieve internal stress – Improves machinability |
Maximum Brinell Hardness: 280 HB |
| Quenching | Preheating Stages: 400°C, 850°C, 1050°C Austenitizing: 1190°C – 1230°C |
– Preheating in stages – Oil, air, or warm bath quenching (550°C) – Ensures uniform hardness |
Uniform Hardness |
| Tempering | 540°C – 570°C | – Conducted at least three times – Balances hardness and toughness |
Final Hardness: 64-66 HRC |
Excellent Wear Resistance: Densification of carbide ensures great edge retention and long shelf life lines.
Improved Thermal Stability: Along withstanding profiling shop desk temperatures ensuring the perfect performance under extreme machining conditions.
Control the Speed of Cooling: Avoid irregular hardness or cracking of your part.
Multiple Coupons/Cycles: Typically at least two tempering cycles facilitates complete stress relief and also better toughness.
Prevent Overheating: If the temperature is too high, it will cause the grain to become coarse, which will reduce the strength and wear resistance.
Maximized Hardness & Toughness
M3:2 has a higher vanadium content (2.70-3.20%) than standard high-speed steels, resulting in better cutting-edge retention and wear resistance.
Equipped with proprietary playing tools and heat treatment technologies, we guarantee uniform hardiness and toughness throughout the entire batch.
Advanced Metallurgical Technology
A process of EAF + LF + VD + ESR refining leads to fewer impurities, and better carbide distribution of cutting elements; which directly enhance its cutting performance.
Superior machinability and uniform structure due to the in-house isothermal spheroidizing annealing.
Stringent Quality Control
A perfect inspection system from raw materials to finished products ensures stable product quality and can meet the requirements of GB/T 9943-2008, AISI M3:2, JIS SKH53 and DIN 1.3344.
The high purity and carbide segregation are optimized by the vacuum degassing and the rapid solidification process.
Unprecedented Customization across the Industry
We offer tailored solutions for various applications – from round bars with different grades of precision forged steel to semi-finished cutting tools and finished tools.
Custom designs can be made according to customer drawings and performance needs.
High Quality & Stability：The innovative processes create stable and reliable product.
Cost-Effectiveness：By optimizing production we help customers save on bulk cost.
Competitive Advantage：Our technology provides us with a substantial competitive advantage over our peers in the industry in terms of quality and cost.
Its unique chemical composition coupled with Innovative special Zeicin powder Steel technology enables it to withstand high Temperature produced during cutting process without numerical loss of hardness which makes it one of the first prefer tools typically required in any industry.
This steel is ideal for tools like drill bits, milling cutters, taps, Wood Working Tools such as Chisels and Routers ruler where a combination of flexibility, hardness, toughness, strength and wearability are necessary. From slicing its way through difficult metals to sustaining sharpness even after extended usage, P23 -M3:2 never fails to impress.
P23 M3:2 SteelApplications P23 M3:2 steel is often used in:
Molds and Dies：Tools Used for Plastic and Metal Forming
Saw Blades: Hi-speed cutting applications.
These applications demand materials that can survive extreme conditions, and P23, M3:2 is specifically designed to thrive under these tasks.
How does M3:2 high speed steel compare to M2?
With a higher vanadium content than M3:2, it has improved wear resistance and edge retention, making this steel the best choice for precision machining of extreme materials.
Is it possible to machine M3:2 hss to our certain sizes?
Certainly, we can offer machine size, processing, and heat treatment based on your specific requirements.
Which Sectors Gain The Most Benefit From M3:2 High Speed Steel?
M3:2 is commonly used in tool manufacturing, aerospace, automotive, and heavy-duty metalworking applications to create durable tools with a long service life.
Do you sell raw materials as a supplier or manufacture your own products?
We are the manufacturer and raw material supplier of non-ferrous alloy materials involving all the period, the world-leading one-stop provider of high-quality M3:2 high-speed steel, machining service provider, to achieve customer-defined semi-finished and finished products. We also deliver the goods in a timely and reliable manner to suit the necessities of production.
Why Should I Chose Zeicin? What is the advantage that I get when I buy steel from them?
What we have is, we have technology that has never been deployed anywhere in the world because all we do is focused on innovation and unique Chinese technology. So the quality we can provide is second to none and the cost as well. This challenges Japanese and European brands in the segment, providing customers with the best performance and economic advantages.
