List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Inconel® 718

Inconel® 718

A Nickel-Chromium alloy being precipitation hardenable and having high creep-rupture strength at high temperatures to about 700°C (1290°F). It has higher strength than Inconel X-750 and better mechanical properties at lower temperatures than Nimonic 90 and Inconel X-750.

Available in all profile options

alloy featured image inconel Inconel® 718

Key Features

Good creep rupture strength at high temperatures
Higher strength than Inconel X-750
Better mechanical properties at lower temperatures than Nimonic 90 & Inconel X-750
Age hardenable
High temperature dynamic applications^^

Typical Applications

Gas Turbines
Rocket Motors
Space Craft
Nuclear Reactors
Pumps


Designations

W.NR 2.4668
UNS N07718
AWS 013

Specifications

AMS 5662
AMS 5663
AMS 5832
AMS 5962
ASTM B637
GE B5OTF14/15
GE B14H89
ISO 15156-3
(NACE MR 0175)

Chemical Composition

ElementMin %Max %
C0.08
Mn0.35
Si0.35
P0.015
S0.015
Cr17.0021.00
Ni50.0055.00
Mo2.803.30
Nb/Cb4.755.50
Ti0.651.15
Al0.200.80
Co1.00
Ta0.05
B0.006
Cu0.30
Pb0.0005
Bi0.00003
Se0.0003
Febal 

Alloy Details

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.19g/cm³133 6 °C13.0 μm/m °C (20 – 100 °C)77.2 kN/mm²204.9 kN/mm²
0.296 lb/in³2437 °F7.2 x 10-6 in/in °F (70 – 212 °F)11197 ksi29719 ksi

Heat treatment of finished parts

Condition as supplied by AWITypeTemperatureTimeCooling
No. 1 or Spring TemperAnneal
Age Harden
Total Age
980 °C (1800 °F)
720 °C (1330 °F)
620 °C (1150 °F)
1hr
8hr
18hr
Air
Furnace
Air
No. 1 or Spring Temper
(for ISO 15156-3 / NACE MR 0175)
Anneal
Age Harden
1010 °C (1850 °F)
790 °C (1455 °F)
2hr
6hr
Air
Air
No. 1 Temper or Spring TemperAge Harden
Total Age
720 °C (1330 °F)
620 °C (1150 °F)
8hr
18hr
Furnace
Air

Properties

Annealed
Approx. tensile strength<1000 N/mm²<145 ksi
No. 1 Temper
Approx. tensile strength1000 – 1200 N/mm²145 – 175 ksi
Spring Temper
Approx. tensile strength1250 – 1550 N/mm²180 – 225 ksi
No. 1 Temper + Annealed + Aged
Approx. tensile strength1250 – 1450 N/mm²181 – 210 ksi
Approx. operating temperature depending on load^^ and environment-200 to +550 °C-330 to +1020 °F
No. 1 Temper + Aged
Approx. tensile strength1520 – 1720 N/mm²220 – 250 ksi
Approx. operating temperature depending on load^^ and environmentContact Alloy Wire Technical Dept
Spring Temper + Annealed + Aged
Approx. tensile strength1250 – 1450 N/mm²181 – 210 ksi
Approx. operating temperature depending on load^^ and environment-200 to +550 °C-330 to +1020 °F
Spring Temper + Aged
Approx. tensile strength1700 – 1950 N/mm²247 – 283 ksi
Approx. operating temperature depending on load^^ and environmentContact Alloy Wire Technical Dept

The above tensile strength ranges are typical. If you require different please ask.

^^ Dynamic applications = active / lively / changing