Alloy 718 Inconel 718 Tubing N07718 2.4688 Nickel Alloy

   

Nickel Alloy 718 N07718 / 2.4668 is an precipitation hardenable nickel-chromium nickel alloy with high strength and Corrosion Resistant.

Alloy 718 Characteristic as below:

1.Workability
2.High tensile strength, endurance strength, creep strength and rupture strength at 700℃.
3.High inoxidability at1000℃.
4.Steady mechanical performance in the low temperature.
5.Good welding performance.

Alloy 718 Inconel 718 Standard and Grade

ASTM B637 for Bars and ASTM B670 and ASTM B906 for sheet and coils

GH4169 GH169 (China), NC19FeNb(France), W.Nr DIN 17551 2.4688 NiCr19Fe19Nb5(Germany)
718 alloy is Austenitic structure, precipitation hardening generate “γ” made it excellent mechanical performance. Grain boundary generate “δ” made it the best plasticity in the heat treatment.

Alloy 718 Inconel 718 Corrosion resistance

Nickel Alloy 718 with extremely resistance to stress corrosion cracking and pitting ability in high temperature or low temperature environments, especially the inoxidability in the high temperature.

Inconel Alloy 718 Specification:

UNS N07718
Werkstoff Nr DIN 17551 2.4668 Pipe Tube
DIN 1755 Plate, Sheet and Strip
DIN 17752 17553 17754 Rod, Bar, Wire and Forging
AMS 5596 Sheet, Strip and Plate
AMS 5597 Sheet, Strip and Plate
AMS 5589 Seamless Tube
AMS 5590 Seamless Tube
AMS 5662 Bars, Forgings and Rings
AMS 5663 Bars, Forgings and Rings
AMS 5664 Bars, Forgings and Rings
AMS 5832 Welding Wire
ASTM B637 Forgings
ASTM B670 Plate, Sheet and Strip
AFNOR NC 19 Fe Nb, 
MSRR 7115 and MSRR 7116 
Inconel 718
FMC Spec M40110, M40118, M40125, M40902, M40908, M40909, M40910
NACE MR-0175/ISO 15156

ASME SB163 Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes

ASME SB165 Standard Specification for Nickel-Copper Alloy (UNS N04400)* Seamless Pipe and Tube

ASME SB167 Standard Specification for Nickel-Chromium-Iron Alloys, Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617),and Nickel-Iron-Chromium-Tungsten Alloy (UNS N06674) Seamless Pipe and Tube

ASME SB407 Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube

ASME SB423 Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825, N08221, and N06845) Seamless Pipe and Tube

ASME SB444 Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube

ASME SB622 Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube

ASME SB668 UNS N08028 Seamless Pipe and Tube

ASME SB690 Standard Specification for Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Seamless Pipe and Tube

ASME SB729 Standard Specification for seamless UNS N08020, UNS N08026, and UNS N08024 nickel alloy pipe and Tube

Alloy 718 Application:

The elevated temperature strength, excellent corrosion resistance and workability at 700℃ propertie made it use in a wide range of high requirement environments. 
1.Steam turbine
2.Liquid-fuel rocket 
3.Cryogenic engineering
4.Acid environment
5.Nuclear engineering

 Inconel Alloy 718 Chemical composition

Alloy%NiCrFeMoNbCoCMnSiSCuAlTi
718Min.5017balance2.84.75      0.20.7
Max.55213.35.510.080.350.350.010.30.81.15

Inconel Alloy 718 Physical Properties

Density / Specific Gravity8193 kg/m³
Melting point1321-1393 °C

Alloy 718 mechanical properties in the room temperature

AlloyTensile strength 
Rm N/mm²
Yield strength 
R P0. 2N/mm²
Elongation 
A 5 %
Brinell hardnessHB
Solution treatment96555030≤363
Alloy 718 Pipe

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