Nickel Alloy Inconel 718 Pipe
Product Detail
Inconel 718 (UNS N07718) high-strength pipes and tubing are critical engineering components in liquid-fueled rockets, aircraft gas turbine engines, high-pressure oil/gas downhole completion tools, and cryogenic pressure vessels. Combined additions of niobium, molybdenum, aluminum, and titanium allow precipitation heat treatment to achieve ultra-high mechanical strength while resisting chloride-ion stress cracking in sour gas environments.
Inconel 718 Pipe & Tube Manufacturing Specification
|
Product Form
|
Outer Diameter (OD)
|
Wall Thickness (WT)
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Standard Length
|
|
Seamless Pipe (SMLS)
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6.0mm – 219.1mm (1/8" – 8")
|
1.0mm – 20.0mm (SCH 10S – SCH 160)
|
6m / 12m / Cut-to-length
|
|
Welded Pipe (ERW / EFW)
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15.0mm – 610.0mm (1/2" – 24")
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1.5mm – 25.4mm (SCH 5S – SCH 80S)
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6m / 12m / Fixed Length
|
|
Precision Instrument Tube
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3.0mm – 38.1mm
|
0.5mm – 3.0mm
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Coil / Straight 6m
|
Chemical Composition of Inconel 718 (UNS N07718) (%)
|
Element
|
Ni
|
Cr
|
Nb + Ta
|
Mo
|
Ti
|
Al
|
Co
|
C
|
Fe
|
|
Min.
|
50.0
|
17.0
|
4.75
|
2.80
|
0.65
|
0.20
|
-
|
-
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Bal.
|
|
Max.
|
55.0
|
21.0
|
5.50
|
3.30
|
1.15
|
0.80
|
1.00
|
0.08
|
Bal.
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Mechanical & Physical Properties (Precipitation Hardened / Room Temp)
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Tensile Strength Rm (MPa)
|
Yield Strength Rp0.2 (MPa)
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Elongation A5 (%)
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Hardness (HRC)
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Density (g/cm³)
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Melting Range (°C)
|
|
≥ 1240
|
≥ 1030
|
≥ 12
|
≥ 36 HRC
|
8.19
|
1260 – 1336
|
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