Hardened & Tempered Steel are made by heat-treating and cooling cold-rolled steel at high temperatures to adjust to the desired hardness and tensile strength as our customers require.

Hardened & Tempered Steel caters to materials requiring high strength for automobiles and industrial uses, meeting sophisticated and enhanced customer needs. We possess the highest-quality eco-friendly hydrogen quenching heat treatment facilities, producing top-quality products through precise control of the latest equipment and shape control. We supply products with the utmost durability and highest wear resistance, such as Flapper Valves, Shock Absorbers, and Cushion Plates, to the world. Due to these characteristics, they are used as critical materials in various industrial sectors.