Inconel Alloy 718

Product Detail

Inconel 718(UNS N07718)

Chemical Composition Wt.%

%

Ni

Cr

Fe

Mo

Nb+Ta

C

Mn

Si

S

P

Cu

Al

Ti

B

min

50

17

bal

2.8

4.75

0.2

0.65

max

55

21

bal

3.3

5.5

0.08

0.35

0.35

0.015

0.015

0.3

0.8

1.15

0.006

Physical Constants

Density.g/cm³

8.24 g/cm³

Melting Range

1260-1320 ?

The minimum mechanical properties of the alloy at room temperature

Typical mechanical properties

tensile strength Rm N/mm2

Yield Strength RP0.2N/mm2

Elongation A5 %

HB

Solution treatment

965

550

30

=363

Characters

1 in the annealed state, with good manufacturing processability; 2. Good tensile strength, fatigue strength and creep rupture strength; 3. Up to 700 ?with a certain high temperature strength; 4. Up to 1000 ? with good oxidation resistance; 5. at low temperatures with excellent mechanical properties; 6. Good arc welding performance, no cracking sensitivity after welding

Product form and implementation of standards

product

ASTM standard

ASME standard

AME standard

Sheet, sheet, strip

B670

SB670

Seamless pipe

Welding pipe

Bar, pie

B637

SB637

Forging material

B670

SB670

Wire

Applications

Due to its high temperature strength and excellent corrosion resistance and ease of processing at 700? , Inconel 718 alloy can be used in a wide range of demanding applications.

1. Steam Turbine 2. Liquid Fuel Rocket 3. Cryogenic Engineering 4. Acidic Environment 5. Nuclear Reactor 6. Extrusion Mold