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Inconel 718

Description

Inconel Alloy is a kind of nickel based high temperature alloy.

Yesom Group offers Inconel Alloy in shape of wire, bar, plate, strip, coil, flange, etc.

Alloy Grade: Inconel 600 ,  Inconel 601 ,  Inconel 718 ,  Inconel 617 ,  Inconel 625 ,  Inconel X-750


Inconel 718

Inconel 718(GH4169 / UNS N07718)
Chemical Composition % Ni: 50-55 Cr: 17-21 Fe: Margin
Mo: 2.8-3.3 Mn: ≤0.35 Cu: ≤0.3
Al: 0.20-0.80 Ti: 0.65-1.15 Co: ≤1.0
Nb: 4.75-5.50 C: ≤0.08 Si: ≤0.35
P: ≤0.015 S: ≤0.015
Melting Point ℃ 1260-1320
Density g/cm3 8.24
Executive Standards ASTM: B670 ASME: SB670 AMS: 5596 / 5597
Application Area Steam turbines, liquid fuel rockets, low-temperature engineering, acidic environments, nuclear reactors, extrusion molds

Designations: AWS 013

Specifications: AMS 5662  ,  AMS 5663  ,  AMS 5832  ,  AMS 5962  ,  ASTM B637

Alloy Details

Density Melting Point Coefficient of Expansion Modulus of Rigidity Modulus of Elasticity
8.19g/cm³ 133 6 °C 13.0 μm/m °C (20 – 100 °C) 77.2 kN/mm² 204.9 kN/mm²
0.296 lb/in³ 2437 °F 7.2 x 10-6 in/in °F (70 – 212 °F) 11197 ksi 29719 ksi

Heat treatment of finished parts

Condition as supplied by AWI Type Temperature Time Time
No. 1 or Spring Temper Anneal
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 Temper Age Harden
Total Age
720 °C (1330 °F)
620 °C (1150 °F)
8hr
18hr
AirFurnace
Air

Properties

Annealed
Approx. tensile strength <1000 N/mm² <145 ksi

No. 1 Temper
Approx. tensile strength 1000 – 1200 N/mm² 145 – 175 ksi

Spring Temper
Approx. tensile strength 1250 – 1550 N/mm² 180 – 225 ksi

No. 1 Temper + Annealed + Aged
Approx. tensile strength 1250 – 1450 N/mm² 181 – 210 ksi
Approx. operating temperature depending on loading and environment -200 to +550 °C -330 to +1020 °F

No. 1 Temper + Aged
Approx. tensile strength 1520 – 1720 N/mm² 220 – 250 ksi
Approx. operating temperature depending on loading and environment Contact Alloy Wire Technical Dept

Spring Temper + Annealed + Aged
Approx. tensile strength 1250 – 1450 N/mm² 181 – 210 ksi
Approx. operating temperature depending on loading and environment -200 to +550 °C -330 to +1020 °F

Spring Temper + Aged
Approx. tensile strength 1700 – 1950 N/mm² 247 – 283 ksi
Approx. tensile strength Contact Alloy Wire Technical Dept

The above information is typical. If you require different please ask.





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