Introduction to the chemical composition and physical properties of Inconel 686 high temperature alloy
Inconel 686 high temperature alloy is a nickel-based alloy whose chemical composition includes nickel, chromium, molybdenum, titanium, aluminum and other elements. It has excellent high-temperature strength and corrosion resistance, and can operate stably in harsh environments such as high temperature, strong acid, and strong alkali. In addition, Inconel 686 alloy also has good resistance to stress corrosion cracking and oxidation. This makes it widely used in aerospace, petrochemical, energy and other fields. Its chemical composition and physical properties will be introduced in detail below.
1. Chemical composition of Inconel 686 high temperature alloy:
C：0.01
Si: 0.08
Mn: 0.75
S: 0.02
P:0.04
Cr: 19.0~23.0
Ni: margin
Fe：≤1.0
Mo: 15.0~17.0
Ti: 0.02~0.25
W:3.0~4.4
1. Physical properties of Inconel 686 high temperature alloy:
Thermal conductivity: Inconel 686 alloy has good thermal conductivity, can effectively transfer heat, and is suitable for the manufacture of high-temperature heat transfer equipment.
Coefficient of thermal expansion: Inconel 686 alloy has a low coefficient of thermal expansion, allowing it to maintain relatively stable dimensions in high temperature environments.
Tensile strength: Inconel 686 alloy has excellent tensile strength at high temperatures and can withstand high loads and severe thermal stress.
Corrosion resistance: Inconel 686 alloy has excellent corrosion resistance and can resist the erosion of corrosive media such as acids, alkalis, and salts, and is suitable for harsh corrosive environments.
Summarize:
Inconel 686 superalloy has become a very important material due to its excellent high-temperature strength and corrosion resistance, as well as its wide application in multiple engineering fields. The advantages of its chemical composition and physical properties enable it to provide long-term stable performance under high temperatures and harsh corrosive environments and meet various engineering requirements.
