M2 high-speed steel (W6Mo5Cr4V2 / SKH51) is known for its high toughness, good wear resistance, and uniform carbide structure. With low carbide inhomogeneity, M2 performs well under vibration and shock loads, making it suitable for cutting tools and molds used in demanding applications.
As a molybdenum-based high-speed steel, M2 maintains high hardness and stable performance at elevated temperatures. Proper control of quenching temperature and heat treatment helps achieve the best material properties. Thanks to its balanced toughness and wear resistance, M2 high-speed steel is widely used for difficult-to-cut materials and general-purpose cutting tools.
Applicable to the production of drill, tap, screw die, milling cutter, gear cutter, cold die mold, and other cutting tools, and molds with high wear resistance and strength.
Metal cutting tools: drills, taps, milling cutters, gear cutters
Heavy-duty molds: punch dies, cold extrusion, and forming dies
Industrial components requiring high wear resistance and strength
| ZEICIN Grade | GB | AISI | JIS | DIN |
| ZDF-M2 | W6Mo5Cr4V2 | M2 | SKH51 | 1.3343 |
| Elemnet | C | W | Mo | Cr | V | Co | Al | Mn | Si | S | P |
| Contene(%) | 0.80-0.90 | 5.50-6.75 | 4.50-5.50 | 3.50-4.40 | 1.75-2.20 | – | – | 0.15-0.40 | 0.20-0.45 | ≤0.03 | ≤0.03 |
A process of heat treatment to increase hardness and wear resistance by rapidly cooling the steel.
Basically, to softens the steel by relieving stress and making it easier to machine.
When using M2 steel, tempering follows quenching in order to relieve stress and fine-tune hardness and toughness for optimum performance.
Annealing-Quenching-Tempering graph (HRC:62-64)
ZEICIN Steel is a professional manufacturer of M2 HSS, supplying products in various forms produced by hot rolling and hot forging. Bulk supply and customized size requirements are available upon request.
| Type | Specification（mm) | Surface Condition |
| Cold-drawn Round Steel | φ1-12 | Black/Centerless Surface |
| Hot-rolled Round Steel | φ12-60 | Turned Surface |
| Precision Forged Round Steel (Spray Forming) | φ60-300+ | Turned/Peeled Surface |
Different surface conditions affect appearance, dimensional accuracy, and machining allowance. The images below show common delivery options (actual products may vary by size and batch).
ZEICIN STEEL invests in R&D for high-speed steels and martensitic stainless steels. Our focus is on cleaner steel, more uniform carbide distribution, and stable heat-treatment response to support longer service life and better batch consistency.
Our company research and development team：Our company is one Member of the key project of “the 13th five-year plan ”of the National ministry of science and technology, Our company enjoys National government support and financial subsidies.
Together with Shanghai University and a Beijing-based steel research institute, we have developed a rapid-solidification electroslag remelting (RS ESR) process route. This process helps improve steel cleanliness and carbide uniformity, supporting longer tool life and more stable performance.
We work with Baosteel Group on spray forming technology. Our team supports process development and engineering validation for spray-formed HSS, helping meet high-performance material development and scale-up needs.
Yes. We are a factory. ZEICIN STEEL produces high-quality, cost-effective special steels, including stainless steel, tool & die steel, and high-speed steel. We also have our own import/export license, so we can serve overseas customers directly and support stable supply with batch traceability.
Yes. For first-time cooperation, we can provide a limited quantity of samples for verification (such as grade confirmation, machining trials, or heat-treatment evaluation). Samples can be shipped by international courier, and the courier cost is paid by the buyer. We value honest cooperation and look forward to a long-term win-win partnership.
Our common international payment methods include T/T and L/C. For trade terms, we can also support options such as DDU based on the order. The final payment method and terms can be confirmed according to your country/region, order value, and delivery method.
Our products use standard industrial packaging to ensure safe transportation. If you need custom packaging, please let us know when placing your order.
If the products are in stock, delivery usually takes 5–7 days.
If the products are not in stock, delivery time is about 30–40 days, depending on the order quantity.
