General information:
Alloy: 1.4835, also known as X9CrNiSiNCe21-11-2 or AISI 253MA
Chemical composition: 20–22% chromium, 10–12% nickel, 0.14–0.20% cerium, ≤0.11% carbon, ≤0.60% silicon, ≤0.80% manganese, ≤0.04% phosphorus, ≤0.03% sulfur, balance iron
Standards: EN 10095, ASTM A240/A240M, ASTM A312/A312M
Mechanical properties:
Tensile strength: ≥ 600 MPa
Yield strength: ≥ 310 MPa
Elongation at break: ≥ 40%
Hardness: ≤ 220 HB
Modulus of elasticity: 200 GPa
Physical properties:
Density: 7.8 g/cm³
Melting point: approximately 1400–1450°C
Thermal conductivity: 15–20 W/(m·K)
Electrical conductivity: 0.75–0.8 × 10⁶ S/m
Magnetizability: non-magnetic
Corrosion resistance:
Good resistance to oxidizing and reducing media
High oxidation resistance at temperatures up to 1150°C
Good resistance to sulfur-containing atmospheres
Heat treatment:
Solution annealing at 1050–1150°C, followed by rapid quenching in water or air
Applications:
High-temperature applications: furnace linings, heat exchangers, combustion chambers
Chemical industry: piping systems, vessels, fittings
Oil and gas industry: pipelines, heat exchangers, pressure vessels
Power plants: exhaust systems, boiler components
Note: This data sheet is for informational purposes only and is based on the information available at the time of preparation. Due to the limited information available for this specific alloy, it is recommended to verify the specific requirements of your application with the relevant standards and manufacturers.
