DF62 / W6Mo2Cr4V2Co is a custom-developed high-speed steel designed and produced by ZEICIN Steel for medium-to-low-speed cutting, forming, and die applications. This premium cobalt-alloy steel is engineered to provide exceptional wear resistance, edge strength, and thermal stability in demanding industrial environments.
Unlike conventional high-speed steels optimized for extreme cutting speeds, DF62 / W6Mo2Cr4V2Co focuses on providing controlled wear behavior and toughness during continuous operation. Its balanced alloy design ensures long-lasting performance, reduced tool wear, and consistent results under both high temperatures and heavy-duty tasks. This makes it ideal for tooling and die applications that require reliable and stable performance without compromising durability.
Low-Speed Cutting Tools
Ideal for drills, milling cutters, and saw blades in low-to-medium-speed cutting, offering stable performance and long life.
Wear-Resistant Metalworking Tools
Perfect for tools that require strong wear resistance and consistent performance in continuous metalworking operations.
Tool & Die Applications
Designed for punching, trimming, and forming tools where toughness and edge strength are essential.
Precision Tools
Ensures accuracy, stability, and consistent results in precision cutting, forming, and shaping for industrial applications.
| ZEICIN Grade | GB | AISI |
| DF62 | W6Mo2Cr4V2Co | – |
| Elemnet | C | W | Mo | Cr | V | Co | Al | Mn | Si | S | P |
| Contene(%) | 0.88 | 5.60 | 1.80 | 4.10 | 1.55 | 1.20 | – | 0.35 | 0.80 | 0.03 | 0.03 |
Softens DF62 / W6Mo2Cr4V2Co steel (HB ~255), reduces internal stresses, and enhances machinability before hardening, making the material easier to process.
Heat to 1150–1200°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 63–66 HRC.
ZEICIN Steel manufactures DF62 / W6Mo2Cr4V2Co in hot-rolled and hot-forged forms, ensuring a stable microstructure and consistent performance for tooling applications. Custom sizes available to meet specific tooling and industrial needs.
| 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.
