Inconel 718
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Inconel 718 is a precipitation-hardening nickel-chromium-iron alloy containing niobium and molybdenum. It has excellent comprehensive performance and is widely used in aerospace, petrochemical and other fields.
Product name：
American standard alloy
Material：
N06455
Warehouse：
Tianjin
Surface treatment：
Pickled/bright/black leather etc.
Category：
Keyword：
Inconel 718
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Details description
Chemical Composition
Main components include Nickel (Ni) 50.00 - 55.00%, Chromium (Cr) 17.00 - 21.00%, Iron (Fe) balance, Niobium (Nb) 4.75 - 5.50%, Molybdenum (Mo) 2.80 - 3.30%, Titanium (Ti) 0.65 - 1.15%, Aluminum (Al) 0.20 - 0.80%, and also contains Cobalt (Co) ≤1.00%, Carbon (C) ≤0.08%, Manganese (Mn) ≤0.35%, Silicon (Si) ≤0.35%, Phosphorus (P) ≤0.015%, Sulfur (S) ≤0.015%, Boron (B) ≤0.006%, Copper (Cu) ≤0.30%, etc.
Physical Properties
Density is approximately 8.24g/cm³, melting temperature range is 1260 - 1320℃.
Mechanical Properties: After proper heat treatment, tensile strength is usually above 1250MPa, yield strength is above 1100MPa, elongation is above 20%, and Rockwell hardness (HRC) is usually between 40 - 45.
Main Characteristics
Excellent high-temperature strength: High tensile strength, fatigue strength, creep strength, and fracture strength at 700℃, and high oxidation resistance at 1000℃.
Good corrosion resistance: It has good resistance to various corrosive media and is not easily oxidized or corroded, suitable for various harsh industrial environments.
Good processing and welding performance: Easy to process, can be formed by forging, rolling, machining, etc., and is suitable for welding, with no tendency for post-weld cracking, suitable for arc welding, plasma welding, etc.
Heat Treatment Methods
Includes solution treatment and double aging treatment, which helps to form precipitates in the alloy, improving its tensile strength, creep resistance, and fatigue resistance.
Product Specifications
Various product forms are available, including bars, wires, plates, strips, and seamless tubes. Standards such as ASTM B166 and ASTM B168 are followed.
Application Fields
Due to its excellent properties, it can be used to manufacture steam turbine components, liquid fuel rocket parts, etc., and is also widely used in cryogenic engineering, acidic environments, nuclear engineering, etc. In the aerospace field, it can be used to manufacture key components such as jet engine turbine blades.
Qualification certification
Corporate video
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Application fields
Petrochemicals
Petrochemicals
Aerospace
Aerospace
Energy equipment
Energy equipment
Oil/gas/water pipelines
Oil/gas/water pipelines
Building construction
Building construction
Dredging & piling works
Dredging & piling works
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