01246 291 111

sales@westspecialfasteners.co.uk

01246 291 111

sales@westspecialfasteners.co.uk

Inconel Alloy 718 ®

About Inconel Alloy 718 ®

Inconel Alloy 718 ® is an alloy containing high levels of nickel, chromium and molybdenum. It is one of the most popular nickel based super alloys and is widely used because of its excellent resistance to corrosive environments, such as crevice corrosion and pitting. Inconel Alloy 718 is intended to show outstandingly high yield, tensile strength and creep-rupture properties at temperatures up to 1300˚F.

Inconel Alloy 718 Fasteners such as Nuts, Bolts, Socket Setscrews, Washers, Studbolts, Studs, Socket Capscrews, Socket Countersunk screws & machined components and hot forged items can all be produced at West Special Fasteners Limited.

We can also supply round bar in Inconel Alloy 718.

Inconel Alloy 718 is used a great deal in extreme environments, such as high-speed airframe parts, cryogenic storage parts, nuclear reactors, chemical processing, and gas turbine engine parts. Alloy 718 is used in these environments because of its high strength and ability to perform excellently at high temperatures.

West Special Fasteners specialises in exotic metals and have supplied major UK companies with Inconel Alloy 718 bolts, nuts etc for use in Subsea controls and pipelines.

Inconel Alloy 718 ® Grades & Equivalents

API 6A718
ASTM B637
AMS 5662
AMS 5663
UNS NO7718
ASTM B670
Werkstoff 2.4668

Typical chemical analysis

C
0.080
Si
0.350
Mn
0.350
P
0.015
S
0.015
Cr
17.0-21.0
Ni
50.0-55.0
Mo
2.80-3.30
Ti
0.65-1.15
Co
1.00
Cu
0.300
Al
0.20-0.80
B
0.006
Fe
Balance
Nb + Ta
4.75 - 5.50

Typical mechanical properties

Tensile Strength

1275N/mm²

0.2% Proof Stress

1034N/mm²

Elongation

12%

Impacts

Nil

Hardness

331 BH Min

Reduction of Area

15%

Stress Rupture

649°C At 690Mpa Stress For 23 Hours, Min Elongation 5%

Other Remarks

Mechanical and Stress Rupture Requirements (if applicable) may vary depending on specification ordered – Above stated requirement are that of ASTM B637

CONTACT US

Speak to an expert about Inconel Alloy 718 ®

Whether you have a question, want to explore collaboration possibilities, or require expert advice, we are here to assist you.

Location

Callywhite Ln, Dronfield, S18 2XR
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