Inconel 718 alloy pipe contains nickel, chromium, iron and other elements. It has high corrosion resistance, high temperature strength and toughness. It is suitable for aerospace, petrochemical, energy and medical equipment.
Inconel 718 seamless alloy tube is mainly composed of nickel, with a content of more than 50%. The contents of chromium, iron and molybdenum are 17-21%, 4.75-5.5% and 2.8-3.3% respectively, which can improve the strength and corrosion resistance of the alloy. The content of titanium is 0.65-1.15%, which can increase the hardness and strength of the alloy and improve its heat resistance. In addition, the content of aluminum is 0.2-0.8%, which can improve the corrosion resistance and thermal stability of the alloy.
Inconel 718 seamless alloy tube features:
1. Easy processing
2. High tensile strength, fatigue strength, creep strength and fracture strength at 700℃
3. High oxidation resistance at 1000℃
4. Stable chemical properties at low temperatures
5. Good welding performance
Inconel 718 welded alloy tube metallographic structure;
718 alloy is an austenitic structure, and the γ" phase generated after precipitation hardening gives it excellent mechanical properties. The δ phase generated at the grain boundary during heat treatment gives it good plasticity.
Inconel 718 alloy tube corrosion resistance;
Whether in high or low temperature environments, 718 alloy has excellent resistance to stress corrosion cracking and pitting. The oxidation resistance of 718 alloy at high temperatures is particularly outstanding.
Inconel 718 Hot working
The suitable hot working temperature is 1120-900℃. The cooling method can be water quenching or other rapid cooling methods. Annealing should be carried out in time after hot working to ensure excellent performance.
Inconel 718 high precision Tube Application Scope;
Due to its high temperature strength, excellent corrosion resistance and easy processing at 700℃, 718 can be widely used in various high-demand occasions.
1. Steam turbine
2. Liquid fuel rocket
3. Cryogenic engineering
4. Acidic environment
