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Nickel AlloysUNS N07718View material details

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Compare Materials: Inconel 718
MaterialInconel 718N07718

Summary

Material familyNickel Alloys
Grade / UNSN07718
SummaryAn age-hardenable nickel alloy for fasteners and components requiring strength and corrosion resistance.

Performance overview

Material focusStrength developed through aging
Physical reference
Density
8.19 g/cm³
Melting range
1260–1336 °C
Supplied technical reference · Scanned PDF page 12 · printed page 24
Chemical composition
Chemical composition

Composition limits · wt.%

Ni
50–55
Cr
17–21
Nb + Ta
4.75–5.50
Mo
2.80–3.30
Ti
0.65–1.15
Al
0.20–0.80
Fe
Balance
C
≤0.08
Mn
≤0.35
Si
≤0.35
P
≤0.015
S
≤0.015
B
≤0.006
Cu
≤0.30
Co
≤1.0
Supplied technical reference · Scanned PDF page 4 · printed page 16

Mechanical properties

Reference conditions vary or are incomplete. Read the basis, condition and source for each column; these values do not establish a performance ranking or finished-fastener acceptance values.

Tensile strength1389 MPa
Typical reference sample
Annealed + aged
Room temperature
Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗
0.2% yield strength1207 MPa
Typical reference sample
Annealed + aged
Room temperature
Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗
Elongation20 %
Typical reference sample
Annealed + aged
Room temperature
Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗
Reference conditions
Data basis
Typical reference sample
Condition
Annealed + aged
Sample form
Hot-rolled bar · Ø25.4 mm
Sample size
1.0 in diameter (25.4 mm)
Test temperature
Room temperature
Test method
Not documented in this reference
Test direction
Longitudinal
Elongation gauge length
Not documented in this reference

Temperature & corrosion

Evaluate the medium, concentration, impurities, temperature and loading together. A melting point or oxidation reference is not a safe working-temperature limit.

Service conditions to reviewSpecify the heat treatment and strength requirement.
Temperature-dependent data
  • Strength and elongation vs temperaturePlate · mill annealed + aged
View material details

Heat treatment

Delivery condition and heat-treatment requirements are agreed for the requested product form and order.

ConditionAnnealed + aged
Reference treatment1750°F / 1 h, then 1325°F / 8 h; furnace cool to 1150°F for 18 h total aging.Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗

Reference applications

Application examples provide context for review; suitability depends on the actual service conditions.

Reference applicationsGas-turbine assemblies · cryogenic equipment

Standards & documentation

Confirm the edition, product form and condition. Material specifications do not establish finished-fastener compliance.

Material specifications by form
Sources
Sources

Documents for your enquiry

Every BYBOLT delivery includes an MTC / EN 10204 3.1 certificate, heat-number traceability and mechanical testing. Threaded products include sampled GO / NO-GO gauging. Test methods and acceptance criteria follow the agreed specification; PMI, third-party inspection and additional records are agreed separately at quotation.

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