Supreme Steels

XH73

Product Description:

XH73 is a versatile, high-performance material designed for use in demanding applications. Its unique combination of high strength, corrosion resistance, and thermal stability makes it suitable for industries such as aerospace, marine, chemical processing, and power generation. Whether in extreme temperatures, corrosive environments, or high-stress applications, XH73 offers reliable performance and long-lasting durability.

Chemical Composition:

Element Composition
Nickel (Ni) 70-75%
Chromium (Cr) 20-25%
Iron (Fe) 4-6%
Molybdenum (Mo) 2-4%
Carbon (C) Max 0.05%
Silicon (Si) Small amounts

Mechanical Properties:

Property Value
Tensile Strength 90-110 ksi (620-760 MPa)
Yield Strength 45-65 ksi (310-450 MPa)
Elongation 20-40% in 2 inches (50.8 mm)
Hardness (Rockwell B) 80-95 HRB
Modulus of Elasticity ~207 GPa (30 × 10⁶ psi)
Poisson’s Ratio 0.3

Physical Properties:

Property Value
Density 8.9-9.0 g/cm³
Melting Point 1300°C – 1350°C (2372°F – 2462°F)
Thermal Conductivity 15-20 W/m·K
Electrical Resistivity 0.70-0.75 μΩ·m at 20°C
Coefficient of Thermal Expansion 12-15 µm/m·°C
Specific Heat Capacity Approx. 0.45 J/g·K
Thermal Expansion Moderate (12-15 µm/m·°C)

Heat Treatment:

Applications:

XH73 alloy’s combination of high strength, corrosion resistance, and thermal stability makes it ideal for use in extreme environments, including:

Corrosion Resistance