Marsh Nickel Alloys is a leading manufacturer and supplier of Inconel 718 tube fittings based in Canberra, Australia. Our Inconel 718 tube fittings are designed to deliver exceptional strength, high-temperature stability, and superior resistance to corrosion and oxidation. These fittings are ideal for demanding applications in aerospace, industrial, and high-performance environments. Engineered for reliability and durability, they ensure long-term performance under extreme conditions. We are committed to providing precision-engineered solutions that meet stringent industry standards. TrustMarsh Nickel Alloys for high-quality Inconel 718 tube fittings that offer exceptional efficiency and resilience in critical applications.
| Specification | ASTM B366, ASTM SB 366, ASTM B564, ASME SB564 |
| Grade | Inconel 600 (UNS N06600, Alloy 600, 2.4816), Inconel 601 (UNS N06601, Alloy 601, 2.4851), Inconel 625 (UNS N06625, Alloy 625, 2.4856), Inconel 800 (UNS N08800, Alloy 800) |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Range | 1/2”NB to 24″NB in Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| 718 | 0.10 max | 0.50 max | 0.50 max | 0.015 max | – | 5.0 max | 58.0 min | 20.0 – 23.0 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Inconel 718 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 705 | 42.5 % |
These fittings are made from a nickel-chromium alloy that includes notable amounts of molybdenum, niobium, and titanium, which together provide remarkable resistance to oxidation, pitting, and stress corrosion cracking. The alloy boasts impressive mechanical properties, such as high tensile, yield, and creep-rupture strength, even at temperatures reaching 700°C. They maintain their toughness and resistance to fatigue in both high and low-temperature environments. Each fitting undergoes precision machining, solution heat treatment, and thorough testing to guarantee dimensional accuracy, metallurgical stability, and leak-tight performance under extreme conditions.
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Inconel 718 Tube Fittings are extensively utilized in industries that require high-performance and corrosion-resistant tubing systems. In aerospace, they find applications in fuel, hydraulic, and exhaust systems. The oil and gas sector uses them in high-pressure pipelines and chemical injection systems. Chemical and petrochemical facilities rely on them for process equipment and reactors that handle aggressive fluids. Power generation plants incorporate them in turbines and heat exchangers. With their outstanding strength, corrosion resistance, and long service life, Inconel 718 Tube Fittings are the go-to choice for critical and high-temperature industrial applications.
