Corrosion Resistance: 440 stainless steel is known for its excellent corrosion resistance in mild environments. It is resistant to corrosion from chemicals, solvents, and salts.
Wear Resistance: 440 stainless steel is known for its excellent wear resistance, making it a popular choice for applications that require high levels of wear resistance such as knives, bearings, and cutting tools.
Hardness: 440 stainless steel is a high-hardness material that can be heat-treated to achieve a hardness of up to 58 HRC. This property makes it suitable for applications that require high levels of hardness, such as cutting tools and industrial blades.
Weldability: 440 stainless steel is known for its poor weldability due to its high carbon content. It is not recommended for welding applications.
Magnetic Properties: 440 stainless steel is magnetic in all conditions.
Heat Resistance: 440 stainless steel has good heat resistance up to 260°C (500°F). It can be used in high-temperature applications such as furnace parts, heat exchangers, and exhaust systems.
|Tempering Temperature (°C)||Tensile Strength (MPa)||Yield Strength 0.2% Proof (MPa)||Elongation (% in 50mm)||Hardness Rockwell (HR C)||Impact Charpy V (J)|
|* Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440A, B and C.|
|Grade||Density (kg/m3)||Elastic Modulus (GPa)||Mean Coefficient of Thermal Expansion (mm/m/°C)||Thermal Conductivity(W/m.K)||Specific Heat 0-100°C (J/kg.K)||Electrical Resistivity (nW.m)|
|0-100°C||0-200°C||0-600°C||at 100°C||at 500°C|