Tim Fittings is your go-to manufacturer and supplier of Incoloy 800, 800H, and 800HT Buttweld Fittings right here in Wellington, New Zealand. We pride ourselves on crafting high-performance piping components that cater to the demanding needs of industries working in high-temperature and corrosive settings. Our Incoloy buttweld fittings are meticulously engineered to ensure they stand the test of time, offering exceptional durability, strength, and resistance to both thermal and chemical stress. Whether it’s petrochemical, power generation, oil & gas, or furnace equipment manufacturing, Tim Fittings is dedicated to providing top-notch fittings that not only meet international standards but also align with our customers’ specific requirements throughout New Zealand.
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, and 800HT Buttweld Fittings are made from nickel-iron-chromium alloys, known for their impressive strength and resistance to oxidation and carburization in high-temperature scenarios. Incoloy 800 typically contains around 30–35% nickel, 19–23% chromium, along with trace amounts of carbon and aluminum. The 800H and 800HT grades come with higher carbon content and carefully controlled levels of aluminum and titanium, enhancing their high-temperature strength and creep resistance. These fittings boast mechanical properties like a tensile strength of up to 600 MPa and remarkable stability at temperatures reaching up to 1100°C, making them perfect for even the toughest service conditions.
Incoloy 800 / 800H / 800HT Buttweld Fittings are extensively utilized in applications that demand outstanding heat and corrosion resistance. You’ll find them in heat exchangers, pressure vessels, furnace components, hydrocarbon cracking units, and nuclear steam generator tubing. Their ability to maintain structural integrity under high temperatures makes them a top choice for thermal processing and chemical environments. In Wellington and throughout New Zealand, Tim Fittings proudly supplies these premium-grade fittings to our valued clients.
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 Tim 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 Tim Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@timfittings.co.nz.
Incoloy 800, 800H, and 800HT buttweld fittings are widely used in high-temperature and corrosive environments. They are commonly found in the chemical, petrochemical, and power generation industries, especially in heat exchangers, boilers, and piping systems. These alloys are ideal for applications involving elevated temperatures, such as furnaces, catalytic reactors, and gas turbines, due to their exceptional resistance to oxidation, carburization, and thermal cycling. They also serve in nuclear power plants, waste incineration systems, and other high-stress environments requiring long-term material durability.
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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