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Data Sheet:

NICKEL SUPER ALLOY Alloy 718

Chemical Composition Limits
Weight % Ni Cr Fe Nb+Ta Mo Ti Al Cu Mn S
Alloy 718 50- 55 17- 21 Remainder 4.75-5.50 2.8-3.3 0.65-1.15 0.2-0.8 0.30 max 0.35 max 0.015max

Corrosion and Heat Resistant Alloy 718

SPECIFICATION

Alloy 718 is available in Sheet, Plate, Strip, Tube, Wire, Forging Stock and Bar.

Similar Specifications

UNS N07718,

ASTM B637 and ASTM B670,

ASME Boiler Code Sections I and III,

SAE 

AMS 5589 Seamless Tubing Alloy 718,

AMS 5590 Seamless Tubing Alloy 718,

AMS 5596 Sheet , Strip Foil & Plate Alloy 718, 

AMS 5597 Sheet , Strip Foil & Plate Alloy 718,

AMS 5662 Bars, Forgings, Rings Alloy 718,

AMS 5663 Bars, Forgings, Rings Alloy 718,

AMS 5664 Bars, Forgings, Rings Alloy 718,

AMS 5832 Welding Wire Alloy 718,

Werkstoff Nr. 2.4668,

MIL-N-24469,

NACE MR-01-75,

AECMA Pr EN 2404, EN 2405, EN 2407, EN 2408, EN 2952, EN 2961, EN 3219,

AFNOR NC 19 Fe Nb,

MSRR 7115 and MSRR 7116,

VAT718,

 

RESISTANCE TO CORROSION Alloy 718 contains nickel, chromium, iron, niobium, molybdenum, aluminium and titanium as main elements. This alloy has corrosion resistance and high strength while also being easily weldable with resistance  to cracking after being welded. It is used in nuclear reactors and rocket motors for its excellent creep rupture strength at temperatures up to 700˚C (1300˚F).

 

MECHANICAL PROPERTIES (Rupture Strength (1000h))

Alloy 718

Temperature psi Mpa
595°C / 1100°F 110,000 760
650°C / 1200°F 86,000 590
705°C / 1300°F 53,000 370
760°C / 1400°F 24,000 170

Mechanical Properties in the Precipitation Hardenable Condition.

 

Availability: Ex-Stock 

 

Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

 

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