H11 hot work mold steel

The H11 hot work mold steel offered by Wuhan Fangyuan Special Steel Co., Ltd. is a premium‑grade alloy steel engineered for demanding hot‑working mould applications. It belongs to the SKS series, providing a combination of high toughness and resistance to thermal fatigue. The material is hardened through a controlled cold‑cooling process that preserves structural integrity at elevated temperatures. Production originates from the company's facilities in Wuhan, China.

Typical H11 steel contains 0.38‑0.44% carbon, 4.75‑5.50% chromium, 1.10‑1.75% molybdenum and 0.80‑1.20% vanadium, delivering a hardness of 44‑48 HRC after oil‑quench and tempering. These specifications meet the ASTM A681 standard for hot‑work tool steels, making the grade suitable for repeated heating cycles. The alloy’s tensile strength exceeds 850 MPa and its impact energy is above 35 J at +20 °C, characteristics valued by mould makers. Such properties enable reliable performance in die‑casting, forging and extrusion tooling.

The steel is widely used by manufacturers in the automotive, aerospace and general engineering sectors for moulds that must endure high temperatures and cyclic stress. Wuhan Fangyuan states that the product complies with ISO and CE certifications, and the company can ship on FOB or CIF terms according to the buyer’s requirement. Minimum order quantities are flexible to accommodate project‑size variations, and the steel is supplied in hot‑rolled plates ranging from 10 mm to 200 mm thickness. Prospective buyers should contact the supplier to confirm current lead times, packaging options and any additional quality documentation.

Wuhan Fangyuan Special Steel Co., Ltd. is located at Room 2101, Beat B, 634 Jiefang Great Avenue, Wuhan 430022, China. The company is classified as an imported‑tier supplier and holds a harbor trust tier, indicating verification of its international trade capabilities. Its profile shows a response rate of 0 % and no recorded average response time, suggesting that communication may require proactive follow‑up. The firm specialises in producing special alloy steels for hot‑work applications.

The listing does not disclose the company’s year of establishment, employee count or specific client portfolio. It does state that the product meets ISO and CE standards and that flexible packaging and shipping terms are offered. Buyers should note that the supplier’s disclosed information is limited to product specifications and basic contact details, and any additional assurances must be obtained directly from the company.