Alloy 1.4521 technical data sheet:
General information:
Alloy: 1.4521
Trade names: X2CrMoTi18-2, AISI 444
Material number: 1.4521
DIN standard: X2CrMoTi18-2
UNS number: S44400
Chemical composition:
Carbon content (C): 0.025% max.
Silicon content (Si): 1.00% max.
Manganese (Mn): 1.00% max.
Phosphorus (P): 0.04% max.
Sulfur (S): 0.03% max.
Chromium (Cr): 17.50 - 19.50%
Molybdenum (Mo): 1.75 - 2.50%
Titanium (Ti): 0.20 - 0.60%
Physical Properties:
Density: 7.8 g/cm³
Melting point: 1450 - 1510 °C
Thermal conductivity: 26 W/(m*K)
Electrical conductivity: 0.5Ωmm²/m
Specific electrical resistance: 0.20 μΩm
Mechanical properties:
Tensile strength: 450 - 650 N/mm²
Yield point: 270 - 420 N/mm²
Elongation at break: 20 - 35%
Hardness: 170 - 220 HB
Heat treatment:
Hardenability: by tempering at temperatures between 1050 and 1100 °C
Tempering hardness: at 750 - 900 °C for an optimal combination of hardness and toughness
Application areas:
Chemical industry (e.g. pipelines, containers)
Water and wastewater engineering (e.g. sewage treatment plants)
Food industry (e.g. mechanical engineering, pipelines)
Construction and architecture industry (e.g. facade cladding)
Please note that the values given here are guide values and may vary depending on the manufacturing process, dimensions and testing method. It is recommended to check the manufacturer's specifications before use.
