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  • Alloy
718

Nickel Alloy 718 Product Guide

Applications | Mechanical and Chemical Data | Tolerances

Overview

A high strength and high fatigue resistance alloy, Nickel Alloy 718 is designed for extended usage at extreme temperatures. Ductility and toughness remain high, though it cannot be cold worked. The service temperatures of Nickel 718 run from cryogenic to 1200 F (649 C). Typically used in gas turbines, liquid fuel rocket motors, springs, fasteners, and cryogenic tanks. 

 

Common Trade Names

UNS N07718, Nickel 718, Alloy 718, INCONEL® 718*, Haynes® 718*, Nicrofer® 5219*, Alvac® 718*, Altemp® 718*

 

*INCONEL® is a trademark of the Special Metals  group.

*Haynes® is a registered trademark of Haynes International Inc.

*Nicrofer® is a registered trademark of VDM Metals Group.

*Alvac® is a registered trademark of VDM Metals Group.

*Altemp® is a registered trademark of Connaught Technology Corporation.

 

Other resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

 

Products

Nickel 718 Round Bar | Nickel 718 Sheet

Applications

  • Aerospace
  • Marine
  • Chemical Processing

Nickel 718 Specifications

 

ASTM

B637

AMS

5596
5662

Mechanical Information
 
Density
Ultimate Tensile Strength
Yield Tensile Strength
Imperial 0.296 lb/in3 160,000 - 199,400 psi 142,000 - 160,000 psi
Metric 8.19 g/cc 1,100 - 1,375 MPa 980 - 1,100 MPa

 

Mechanical Information
 
Melting Point
Elongation at break percentage
Imperial 2,300 - 2,437 F 18 - 25
Metric 1,260 - 1,336 C  

 



Chemistry Information
Element
Percentage
C 0.08 max
Mn 0.35 max
P 0.015 max
S 0.015 max
Si 0.35 max
Cr 17 - 21
Ni 50 - 55
Mo 2.8 - 3.3
Nb 4.75 - 5.5
Ti 0.65 - 1.15
Al 0.2 - 0.8
Co 1 max
Bo 0.006 max
Cu 0.3 max
Ta 0.05 max
Fe -
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