Specification of Inconel 718 Pipe
| Specifications | ASTM B637, ASME SB637 Pipe |
|---|---|
| Nominal Pipe Size (NPS) | 1/8″ NB to 8″ NB (typical stock range); larger custom sizes available |
| Outside Diameter (OD) | Approx. 6 mm to 203.2 mm (1/8″ to 8″), with custom OD up to 2500 mm |
| Wall Thickness | Schedule 5S, 10S, 40S, 80S, 160, XXS; also ranges from ~0.3 mm to 150 mm depending on spec |
| Length | Standard: up to 6 m; extended options up to 12 m (or custom lengths via order) |
| Pipe Type | Seamless, Welded (ERW), hot-finished |
| Finish | Mill finish; options: polished, bright annealed, pickled |
| Tolerance | Standard NPS OD/tolerance per spec; some OD ±0.2 mm, wall ±0.02 mm |
| Standards & Materials | UNS N07718 (Inconel 718) alloy; compliant with ASTM/ASME for high-temperature strength |
Inconel 718 Pipe Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Inconel 718 | 2.4668 | N07718 |
Chemical Composition Of Inconel 718 Pipe
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
|---|---|---|---|---|---|---|---|---|
| 718 | 0.08 max | 0.35 max | 0.35 max | 0.015 max | 0.30 max | – | 50.00 – 55.00 | 17.00 – 21.00 |
Inconel 718 Pipe Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) |
|---|---|---|---|---|
| 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 482 | 45 % |
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