General information:
Alloy: 1.4878 (also known as X8CrNiTi18-10, AISI 321H)
Chemical Composition: 17-20% Chromium, 9-12% Nickel, ≤2% Manganese, ≤1% Silicon, ≤0.08% Carbon, ≤0.04% Phosphorus, ≤0.03% Sulfur, 0.7- 1.0% titanium, balance iron
Standards: EN 10095, ASTM A240/A240M, ASTM A182/A182M
Mechanical properties:
Tensile strength: ≥ 500Mpa
Yield strength: ≥ 205Mpa
Elongation at break: ≥ 40%
Hardness: ≤ 215HB
Modulus of elasticity: 200GPa
Physical Properties:
Density: 7.9 g/cm³
Melting point: Approximately 1400-1450 °C
Thermal conductivity: 15-20 W/(m K)
Electrical conductivity: 0.75-0.8 x 10^6 S/m
Magnetizability: Non-magnetic
Corrosion resistance:
Good resistance to oxidizing and reducing media
High resistance to intergranular corrosion at temperatures up to 800 °C
Susceptible to pitting corrosion in chloride containing environments at higher temperatures
Heat treatment:
Solution heat treatment at 950-1050°C followed by rapid water or air quenching
Applications:
High temperature applications: furnace linings, heat exchangers, combustion chambers
Chemical industry: pipelines, tanks, fittings
Food processing: heat exchangers, piping, vessels
Note: This data sheet is for informational purposes only and is based on the information available at the time of writing. Due to the limited information on this specific alloy, it is recommended to check the specific requirements of your application with the appropriate standards and manufacturers.
