Nguyen Fittings and Plates supplies Inconel Buttweld Fittings designed for high-temperature, high-stress, and corrosive environments. Manufactured according to ASTM B366 and ASME B16.9 standards, these fittings include elbows, tees, reducers, and caps made from Inconel 600, 625, 718, and other grades. Inconel is a nickel-chromium alloy known for its resistance to oxidation, chloride stress corrosion, and thermal fatigue. These buttweld fittings are widely used in aerospace, marine, nuclear, and chemical processing industries, where consistent performance under extreme conditions is essential.
| Specifications | ASTM B 366 / ASME SB 366 |
| Standards | ANSI B 16.5, BS 1560. BS 10, IS 6392, B-2.1 NPT, API, DIN, JIS. MSS SP 44 |
| Size Range | Seamless 1/2″ – 10″ , Welded 1/2″ – 48″ |
| Type | Seamless & 100% X-Ray Welded, Fabricated |
| Schedule | Sch 5 TO Sch XXS. |
| Pipe Fittings Type | Reducer (Concentric & Eccentric), CAP, Stubend (Long &Short), Nipple (Barrel), Bend (Long & Short), Elbow (180 Deg., 90 Deg. & 45 Deg.), Tee (Equal & Unequal) |
Inconel alloys contain nickel (up to 72%), chromium (14–21%), and other elements like molybdenum, iron, and niobium. For instance, Inconel 625 has a tensile strength of up to 827 MPa and a yield strength of about 414 MPa. It also shows excellent resistance to creep and rupture at high temperatures. These fittings are non-magnetic, resistant to oxidation, and maintain their integrity under thermal cycling, high pressure, and chemical exposure. They are well-suited for tough environments and long service lives.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Inconel 600 | 0.15 max | 1.00 max | 0.50 max | 0.015max | 0.50 max | 6.00 – 10.00 | 72.00 min | 14.00 – 17.00 |
| Inconel 601 | 0.10 max | 1.0 max | 0.5 max | 0.015 max | 1.0 max | Balance | 58.0 – 63.0 | 21.0 – 25.0 |
| Inconel 625 | 0.10 max | 0.50 max | 0.50 max | 0.015 max | – | 5.0 max | 58.0 min | 20.0 – 23.0 |
| Inconel 718 | 0.08 max | 0.35 max | 0.35 max | 0.015 max | 0.30 max | – | 50.00 – 55.00 | 17.00 – 21.00 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Inconel 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
| Inconel 601 | 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30 % |
| Inconel 625 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
| Inconel 718 | 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 482 | 45 % |
Nguyen Fittings is a leading supplier of Inconel Buttweld Fittings in Da Nang, Vietnam. We offer an extensive range of Monel 400 fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Inconel 600 | 2.4816 | N06600 | NCF 600 | NA 13 | МНЖМц 28-2,5-1,5 | NC15FE11M | NiCr15Fe |
| Inconel 601 | 2.4851 | N06601 | NCF 601 | NA 49 | XH60BT | NC23FeA | NiCr23Fe |
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NA 21 | ХН75МБТЮ | NC22DNB4M | NiCr22Mo9Nb |
| Inconel 718 | 2.4668 | N07718 | – | – | – | – | – |
Inconel Buttweld Fittings from Nguyen Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
Inconel Buttweld Fittings offer several advantages, making them ideal for demanding applications. Their superior resistance to oxidation, corrosion, and high temperatures ensures long-term durability in extreme environments. These fittings maintain high strength and stability even at elevated temperatures, making them suitable for high-pressure and high-stress systems. Inconel’s excellent weldability allows for strong, reliable connections, while its resistance to thermal-fatigue and creep enhances performance in challenging industrial settings. These qualities make Inconel Buttweld Fittings particularly valuable in industries like aerospace, chemical processing, power generation, and petrochemical applications.
Yes, custom sizes for Inconel Buttweld Fittings are available at Nguyen Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@nguyenfittings.com.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.








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