Standard Grade

Trade Name

UNS No.

DIN

BS

JIS

French Specs

INCONEL 718

UNS N07718

WS 2.4668

-

-

-

Specification

ASTM B 670, ASTM B 906, ASME SB 670, ASME SB 906, SAE AMS 5596, SAE AMS 5597, SAE AMS 5950, AECMA PrEN 2407, AECMA PrEN 2408, ISO 6208, DIN 17750

Typical use

Alloy 718 (UNS N07718, W Nr 2.4668) is an austenitic nickel-based superalloy. Alloy 718 exhibits excellent high yield tensile and creep-rupture properties at temperatures up to 1300ºF and oxidation resistance to 1800ºF. Alloy 718 is used in applications that require high strength such as parts for jet engines and high speed airframe parts such as wheels, buckets, spacers and high temperature bolts and fasteners.

Density
Melting Range
Specific Heat

8.24  g/cm3
1260-1336 ℃
435  J/kg•℃

Chemical Composition Limits

Weight %

C

Mn

P

S

Si

Cr

Ni

Mo

Cb

Ta

Ti

Al

Co

B

Cu

Fe

Alloy 718
AMS 5662

0.08

0.35

0.015

0.015

0.35

17-21

50-55

2.8-3.30

4.75-5.50

0.05

0.65-1.15

0.20-0.80

1.00

0.006

0.30

Rem

Material

Condition

Tensile Strength
ksi

Yield Strength
ksi

Elongation
4D

Hardness

Alloy 718 Sheet

AMS 5596 < 0.1874" thick

140

80

30

102 HRB

Alloy 718 Sheet

AMS 5596 Aged < 0.1874" thick

180

150

12

≥36 HRC

Alloy 718 Sheet

AMS 5597

140

75

30

≤ 25 HRC

Alloy 718 Sheet

AMS 5597 + Aged

180

150

15

≥38 HRC