Teerasil Fittings and Plates, a reputable manufacturer and supplier based in Bangkok, Thailand, specializes in high-quality Incoloy 800 / 800H / 800HT Buttweld Fittings. These fittings are crafted for strength, durability, and outstanding resistance to both corrosion and high temperatures. Made from nickel-iron-chromium alloys, they’re designed to perform exceptionally well in tough environments like chemical processing, power generation, and the oil and gas sectors. Adhering to international standards, our buttweld fittings guarantee precise dimensions, a smooth surface finish, and leak-proof connections. Available in various forms such as elbows, tees, reducers, caps, and stub ends, Incoloy 800 series fittings are perfect for piping systems that demand reliability, safety, and long-lasting performance even under extreme conditions.
Specifications : ASTM B366 / ASME SB366
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : Seamless Butt Weld Fittings: 1/2″ – 10″, Welded Butt Weld Fittings: 1/2″ – 48″
Type : Seamless / Welded / Fabricated
Schedule : Sch 5 TO Sch XXS.
Thickness : 20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg., & Sch. 10, Sch. 40, Sch. 80 etc
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| 800H | 0.05 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| 800HT | 0.06 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60ᴬ | 0.15 – 0.60ᴬ |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 800 / 800H / 800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Incoloy 800 / 800H / 800HT Buttweld Fittings consist of 30–35% nickel and 19–23% chromium, along with iron, carbon, titanium, and aluminum. The 800H and 800HT grades are designed with controlled carbon levels and enhanced creep-rupture strength, making them ideal for high-temperature applications. They offer impressive mechanical properties, including tensile strength ranging from 450–650 MPa, yield strength between 200–300 MPa, and excellent elongation, which ensures both toughness and ductility. With remarkable resistance to oxidation, carburization, and sulfidation, these buttweld fittings provide exceptional dimensional stability, weldability, and durability, making them a reliable choice for high-pressure, high-temperature, and corrosive industrial settings.
Teerasil Fittings is a leading supplier of Incoloy 800/ 800H/ 800HT Buttweld Fittings in Bangkok, Thailand. 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.
Incoloy 800/ 800H/ 800HT Buttweld Fittings from Teerasil 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.
Incoloy 800, 800H, and 800HT buttweld fittings offer numerous advantages, including excellent high-temperature strength and superior resistance to oxidation and carburization. These alloys maintain stability and structural integrity in extreme environments, making them ideal for chemical processing, power plants, and heat exchangers. The addition of titanium in 800H and 800HT improves creep resistance and enhances long-term performance. Their outstanding weldability ensures easy fabrication, while high resistance to corrosion and stress cracking ensures longevity. These alloys provide durability, reducing maintenance and downtime in high-temperature industrial applications.
| Nominal PipeSize | Outside Diameter | 90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
| (inches) | – | Long Radius | Short Radius | Long Radius | Long Radius | |||
| (mm) | (inches) | Center to Face (inches) | Center to Face (inches) | Center to Face (inches) | Radius (inches) | Center to Center (inches) | Back to face (inches) | |
| 1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
| 3/4 | 26.7 | 1.050 | 1 1/8 | 7/16 | 2 1/4 | 1 11/16 | ||
| 1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
| 1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
| 1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
| 2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
| 2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
| 3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
| 3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
| 4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
| 5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
| 6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
| 8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
| 10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
| 12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
Yes, custom sizes for Incoloy 800/ 800H/ 800HT Buttweld Fittings are available at Teerasil Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@teerasilfittings.com.
Incoloy 800, 800H, and 800HT Buttweld Fittings are commonly used in industries that demand both strength and resistance to corrosion, especially at high temperatures. You’ll find them in chemical and petrochemical plants, where they play a crucial role in heat exchangers, condensers, and piping systems that deal with corrosive fluids. The oil and gas sector counts on these fittings in refineries, offshore rigs, and high-pressure pipelines. Power generation facilities also make use of them in boiler systems, steam lines, and superheater tubes. Additionally, they’re found in heat treatment equipment, pressure vessels, and furnaces. Their remarkable ability to maintain structural integrity even under extreme conditions makes them vital for critical and long-term industrial applications.
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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