W2Mo8Cr4V2Co3 (M7 Modify) high-speed steel is an advanced tool steel known for its exceptional performance in high-speed and high-temperature environments. This premium alloy is specifically engineered for demanding industrial applications, offering excellent wear resistance, toughness, and thermal stability. With a hardness range of 64–67 HRC, it excels in cutting tools and precision components, ensuring durability and optimal performance in the most challenging cutting environments.
W2Mo8Cr4V2Co3 (M7 Modify) is highly regarded across industries for its ability to withstand extreme conditions, such as high-speed cutting, high-temperature operations, and continuous use, making it an essential material in the production of high-performance cutting tools and machinery components.
Cutting Tools for Hard Materials
Ideal for drills, milling cutters, and saw blades in high-speed cutting, offering durability and long life.
Wear-Resistant Tools for Metalworking
Provides excellent performance and durability in extreme metalworking conditions.
Heavy-Duty Cutting Tools
Perfect for tough materials, ensuring strength and wear resistance in heavy-duty tasks.
Precision Tools
Ensures accuracy and reliability in cutting, forming, and shaping for industrial use.
| ZEICIN Grade | GB | AISI |
| DF8Co3 | W2Mo8Cr4V2Co3 | M7 Modify |
| Elemnet | C | W | Mo | Cr | V | Co | Al | Mn | Si | S | P |
| Contene(%) | 1.00 | 2.40 | 7.80 | 4.00 | 2.00 | 3.00 | – | 0.40 | 0.40 | 0.03 | 0.03 |
Softens W2Mo8Cr4V2Co3 (M7 Modify) steel (HB ~269), reduces internal stresses, and improves machinability before hardening, making the material easier to process.
Heat to 1180–1210 °C, followed by rapid cooling to achieve high hardness and wear resistance. This process locks in the steel's high-performance characteristics.
Post-quenching tempering at approximately 550 °C balances hardness and toughness while relieving residual stresses, resulting in a final hardness of 64–67 HRC.
ZEICIN Steel manufactures W2Mo8Cr4V2Co3 (M7 Modify) high-speed steel in hot-rolled and hot-forged forms, offering strong wear resistance, toughness, and heat stability. We supply bulk orders and custom sizes for cutting tools, precision tooling, and industrial applications.
| 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.
