Inconel alloy 693 has excellent high-temperature corrosion resistance and metal dust resistance. It contains 60.5% nickel, 29% chromium and 3.1% aluminum. It is easy to manufacture and process, has good weldability, and needs to be heated to 1010-1066°C for annealing. It is used in petrochemical, energy, high-temperature fuel cells and other fields.
What is the chemical composition of alloy 693?
Inconel 693 chemical composition:
· Carbon (C): ≤0.15%
· Chromium (Cr): 27.0% - 31.0%
· Nickel (Ni): Balance
· Aluminum (Al): 2.5% - 4.0%
· Titanium (Ti): ≤1.0%
· Iron (Fe): 2.5% - 6.0%
· Niobium (Nb): 0.5% - 2.5%
· Silicon (Si): ≤0.5%
· Manganese (Mn): ≤1.0%
· Sulfur (S): ≤0.01%
· Copper (Cu): ≤0.5%
What are the physical properties of Inconel 693 alloy?
Inconel 693 physical properties
· Density: 7.77 g/cm³
· Melting temperature: 1317-1367°C
· Resistivity: 1.168 μΩ•m
What are the mechanical properties of Inconel alloy 693?
Mechanical properties of Inconel 693
· Tensile strength: about 760 MPa (110,000 psi) at room temperature
· Yield strength: about 310 MPa (45,000 psi) at room temperature
· Elongation: usually less than 10%
· Hardness: HB 200-250
Inconel 693 heat treatment process
alloy 693 usually requires heat treatment to improve its mechanical properties and corrosion resistance, including:
· Solution treatment: carried out at high temperature to eliminate the solid solution phase in the alloy and improve plasticity.
· Aging treatment: carried out at a lower temperature to promote the precipitation of the hardening phase and improve the strength and durability of the material.
Application areas of Inconel 693 alloy
· Aerospace industry: used to manufacture turbine blades, gas turbine components and jet engine components.
· Chemical industry: used to handle and transport high-temperature corrosive media, such as high-temperature petroleum refining units, chemical reactors, high-temperature furnaces, etc.
· Automotive industry: used for high-temperature components such as turbochargers, turbine impellers, valve seats and internal combustion engine inserts.
· Medical devices: used to manufacture high-temperature and high-pressure medical devices, such as artificial heart valves and artificial joints.
