General information:
Alloy type: 1.7335
Main alloying elements: Iron (Fe), Chromium (Cr), Molybdenum (Mo)
International standard: EN 10028-2
Mechanical properties:
Tensile strength: 450 - 600 MPa (megapascals)
Yield strength: 280 - 400 MPa
Elongation at break: 22 - 35%
Hardness (Rockwell): -
Modulus of elasticity: 190 - 210 GPa
Physical Properties:
Density: 7.85 g/cm³
Melting point: approx. 1420 - 1470 °C
Thermal conductivity: 33 W/(m K)
Electric conductivity: -
Chemical composition (in percent by weight):
Carbon (C): 0.10 - 0.17%
Chromium (Cr): 0.70 - 1.15%
Molybdenum (Mo): 0.40 - 0.60%
Manganese (Mn): 0.40 - 0.70%
Silicon (Si): 0.35% max.
Phosphorus (P): 0.025% max.
Sulfur (S): max. 0.010%
Heat treatment:
Alloy 1.7335 can be heat treated to improve mechanical properties. The most common heat treatment conditions are:
Normalizing: heating to 890 - 950 °C and subsequent slow cooling in air.
Tempering: heating to 960 - 1000 °C and subsequent quenching in water or oil.
Corrosion resistance:
Alloy 1.7335 offers good resistance to oxidizing environments and steam at elevated temperatures. However, it is not resistant to corrosive media such as strong acids and salt solutions.
Applications:
Alloy 1.7335 is widely used in the petrochemical, power generation and power generation industries, particularly for pressure vessels, piping and heat exchangers that must withstand high temperatures and pressures.
Please note that the values given are indicative and may vary slightly depending on the manufacturing process and specific batch. It is recommended to always check the manufacturer's exact specifications.
