UNS N07718


AMS 5596B (Sheet)
AMS 5662B (Bar/Forging)
AMS 5663B
AMS 5589 (seamless tube)
2.4668 (De)
Nic19Fe19Nb5Mo3 (EU)
Nc19FeNb (Fr)


Base Element Ni (Nickel)

Element Min Max
Al (Aluminium) 0.4 0.6%
Bi (Bismuth) 0.5%
C (Carbon) 0.045%
Ca (Calcium) 0.030%
Co (Cobalt) 1%
Cr (Chromium) 17 21%
Mg (Magnesium) 0.0060%
Mn (Manganese) 0.35%
Mo (Molybdenum) 0.28 3.3%
Ni (Nickel) 50 55%
Nb(Niobium) + Ta(Tantalum) 4.87 5.2%
Pb (Lead) 0.0010%
S(Sulphur) 0.010%
Si(Silicon) 0.35%
Se(Selenium) 0.005%
Ti(Titanium) 0.80 115%
Fe(Iron) BAL

Mechanical Property(120 K) Min Max
Ultimate Tensile Strength (UTS) 150
Yield Strength 120 MPa 145 MPa
Elongation (4D) 20%
Hardness (Rockwell C) 36 HRC
Reduction of Area 35
Mechanical Property(140 K) Min Max
Ultimate Tensile Strength (UTS) 165 MPa
Yield Strength 150 MPa
Elongation (4D) 20
Hardness (Rockwell C) 36 HRC
Reduction of Area 35


Liquid fuelled rocket Components
Gas Turbines
Cryogenic storage vessels


High Strength
Corrosion Resistant
Readily Fabricated
Readily Welded
Creep Resistant

Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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