IN718

IN718 is a nickel base precipitation hardening equiaxed superalloy. Alloy to‘ γ’ Phase is the main strengthening phase‘ γ’ The phase is auxiliary strengthening phase.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
K4169IN718

Chemical Composition, %

AlloyCSiMnPSCrNiCoMoAlTiNbTaFe
IN7180.02-0.08≤0.35≤0.35≤0.015≤0.01517.0-21.050.0-55.0≤1.02.8-3.30.3-0.70.65-1.154.4-5.4≤0.10Bal

Typical Physical and Mechanical Properties (RT, Solution Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB
8.221243-1359103589015/

Available Products and Specifications

Rod, Bar, Wire and Forgings
Plate, Sheet and Strip
Pipe and Tube
Welding Product
Others

Features

The alloy has high strength and plasticity in a wide medium and low temperature range of – 253-700℃, excellent corrosion and radiation resistance, good welding and forming properties, and good resistance to strain aging cracks.

Applications

The alloy is widely used in aviation, aerospace engines, nuclear reactors and chemical fields. It is suitable for making engine blades, blade casings and other structural parts working below 650℃.