Alloy 625
Applications Alloy 625:
Alloy 625 is a nickel-chromium-molybdenum alloy with niobium added. This provides high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
Chemical analysis Alloy 625:
Nickel – 58,0% min.
Chromium – 20.0-23.0%
Iron – 5.0%
Molybdenum 8,0-10,0%
Niobium 3,15-4,15%
Manganese – 0,5% max.
Carbon – 0,1% max.
Silicon – 0,5% max.
Phosphorous: 0,015% max.
Sulfur – 0,015% max.
Aluminium: 0,4% max.
Titanium: 0,4% max.
Cobalt: 1,0% max.
Alloy 625 ASTM standards:
Bar/Billet – B166
Forgings/Flanges – B564
Seamless Tubing – B163
Welded Tubing – B516
Seamless Pipe – B167
Welded Pipe – B517
Plate – B168
Buttweld fittings – B366
Bar/Billet – B166
Forgings/Flanges – B564
Seamless Tubing – B163
Welded Tubing – B516
Seamless Pipe – B167
Welded Pipe – B517
Plate – B168
Buttweld fittings – B366
Density Alloy 625 625: 8,44
