D3 cold work mold steel

D3 cold work mold steel from Wuhan Fangyuan Special Steel Co., Ltd. is an oil-hardening tool steel known for its high carbon and chromium content, delivering exceptional wear resistance and dimensional stability under heavy loads. The supplier’s material is designed for Cold work applications where resistance to abrasion and deformation is critical, such as blanking dies, forming rolls, and punches. Its composition typically includes 2.00-2.35% carbon and 11.00-13.50% chromium, which provides deep hardenability and resistance to tempering.

The steel is supplied in the annealed condition with a typical hardness of 212-248 HB, allowing for easy machining before heat treatment. After hardening and tempering, it achieves a working hardness of 58-62 HRC, making it suitable for high-stress applications in industries like automotive, aerospace, and precision engineering. Standard industry practice includes stress relieving after rough machining to minimize distortion during final heat treatment.

This grade is commonly used for tools that require a combination of toughness and wear resistance, such as shear blades, coining dies, and gauges. Buyers typically source D3 in rounds, flats, or plates, with dimensions tailored to specific tooling requirements. The material’s performance is further enhanced by proper heat treatment, including preheating, austenitizing at 900-950°C, quenching in oil, and tempering at 180-220°C to relieve stresses while maintaining hardness.

Wuhan Fangyuan Special Steel Co., Ltd. is a China-based supplier specializing in tool steels, including cold work grades like D3. The company operates from Room 2101, Block B, 634 Jiefang Great Avenue in Wuhan, Hubei Province, and is classified as an imported-tier supplier on the platform. Its profile indicates a focus on industrial materials, with a listed trust tier of harbor, reflecting verified operational signals.

The supplier’s response metrics are currently unrecorded, with a 0.00% response rate and no average response time logged. While the listing does not specify certifications beyond the mentioned ISO 9001:2000 standard in the original description, buyers are advised to confirm current quality management systems directly with the supplier. The company’s product range is centered on high-performance steels for manufacturing and tooling applications.