Wear Resistant 440C Stainless Steel Hot Rolled / Cold Drawn Rod

The chemical composition of 440C includes carbon (C), chromium (Cr), nickel (Ni), and other elements. The high carbon content provides exceptional hardness and wear resistance, while chromium content between 17%-19% delivers excellent corrosion resistance.

440C stainless steel has a density of approximately 7.78 g/cm³, with a melting point between 1398-1454℃. Its low thermal conductivity ensures stability in high temperature environments.

The heat treatment process involves quenching and tempering:

• Quenching: Heating above critical temperature followed by rapid cooling to obtain martensite structure
• Tempering: Heating below critical temperature after quenching to eliminate stress and improve toughness

After proper heat treatment, 440C achieves:

• Tensile strength: ≥880 MPa
• Yield strength: ≈780 MPa
• Good plasticity and toughness despite relatively low elongation

The high chromium content forms a protective oxide film that prevents corrosion. 440C performs well in atmospheric conditions and resists acids, alkalis, and other corrosive media.

• Medical Equipment: Scalpels, scissors, needles
• Kitchenware: High-end knives and cookware
• Industrial Components: Valves, pumps, bearings, gears
• Aerospace: High-temperature parts including turbine blades

Available either heat-treated or untreated according to customer requirements.