Martensite (Ningbo) New Materials Co., Ltd. is a leading provider of premium die-casting mold steels and advanced heat treatment solutions. We supply highly cost-effective, long-lasting tooling materials for the global automotive and precision die-casting industries. Additionally, we deliver high-strength steel, titanium alloys, and superalloys to the chemical, aerospace, and nuclear power sectors. Headquartered in Ningbo, Zhejiang, Martensite has established a deep strategic partnership with Fushun Special Steel (Fugang) to co-develop proprietary, high-performance tool steels. Our flagship portfolio includes self-developed LDC-i, MDC-i, and SDC-i grades: LDC-i: NADCA-certified and tailored for NEV giga-casting mega-molds (rear floors, front structures, battery packs) with a service life exceeding 100K shots. MDC-i: Optimized for conventional ICE cylinder blocks and EV motor housings. SDC-i: Engineered to eliminate die erosion and excel in thick-walled castings. Quality is our lifeline. Martensite’s unique crack-preventing rapid-quenching technology and flexible oxynitriding processes drastically extend die life, meeting the strict automotive supply chain standards. Whether for lightweight magnesium-aluminum casting or demanding aerospace applications, Martensite is your trusted long-term strategic partner.