Tolu Fittings, located in Abuja, Nigeria, has built a solid reputation as a top-notch manufacturer and supplier of high-quality industrial fittings. They specialize in Incoloy 800, 800H, and 800HT Forged Fittings, which are crafted from a robust nickel-iron-chromium alloy. These fittings are engineered to endure extreme temperatures and harsh environments, ensuring they deliver exceptional strength and reliability. The Incoloy 800 series is perfect for industries like chemical processing, petrochemicals, oil and gas, and power generation. Tolu Fittings adheres to global quality standards, guaranteeing precision engineering, durability, and accuracy in every product, providing clients with reliable solutions for high-temperature and high-pressure applications.
Incoloy Alloy 800/800H/800HT Forged Fittings Specification
Specifications ASTM B366 / ASME SB366
Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, MSS SP-79
Size 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type Seamless / Welded / Fabricated
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Grade 800 / 800H / 800HT UNS (N08800, N08810, and N08811), DIN (1.4876, 1.4958, and 1.4959)
| Grade | Ni | Fe | Cr | Cu | Ti | Al | C | Mn | S | Si |
| Incoloy 800 | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | .15-.60 | .15-.60 | .1 max | 1.5 max | .015 max | 1.0 max |
| Incoloy 800H | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | .15-.60 | .15-.60 | .05-.10 max | 1.5 max | .015 max | 1.0 max |
| Incoloy 800HT | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | .25-.60 | .85-1.20 | .06-.10 max | 1.5 max | .015 max | 1.0 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.94 g/cm3 | 1350-1400 ℃ | Psi – 75,000 , MPa -520 | Psi – 30,000 , MPa – 205 | 30 – 35 % |
| Incoloy 800 | 1.4876 | N08800 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 | XH32T |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | NCF 800H | NA 15(H) | ЭИ670 | Z8NC33-21 | X5NiCrAlTi31-20 | XH32T |
| Incoloy 800HT | 1.4959 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | ЭИ670 | – | X8NiCrAlTi32-21 | XH32T |
Incoloy 800/800H/800HT Forged Fittings are primarily made up of nickel (30–45%), chromium (19–23%), and iron (the balance), with trace amounts of aluminum, titanium, and copper. This distinctive chemical makeup gives them remarkable resistance to oxidation, carburization, and corrosion, even at elevated temperatures. On the mechanical side, these fittings boast high tensile strength, yield strength, and impressive creep and rupture resistance. The 800H and 800HT grades are designed to offer enhanced mechanical properties for extended exposure to high temperatures. Their forged construction provides superior toughness, structural integrity, and precise dimensions, making them perfect for critical industrial applications.
Tolu Fittings is a leading supplier of Incoloy 800/ 800H/ 800HT Forged Fittings in Abuja, Nigeria. 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 Forged Fittings from Tolu 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/800HT Forged Fittings offer numerous advantages, including exceptional resistance to high-temperature oxidation, carburization, and corrosion. They maintain structural stability under thermal cycling and prolonged exposure to elevated temperatures, ensuring reliability in demanding environments. These fittings exhibit excellent mechanical strength, creep, and stress rupture resistance, making them ideal for critical applications. Their versatility allows for use in various industries, such as petrochemical, chemical processing, and power generation. Additionally, their durability and low maintenance requirements reduce operational costs, ensuring long-term performance and efficiency in challenging conditions.
Yes, custom sizes for Incoloy 800/ 800H/ 800HT Forged Fittings are available at Tolu Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@tolufittings.com
Incoloy 800/800H/800HT Forged Fittings find extensive use in industries that operate in high-temperature and corrosive environments. Common applications include chemical processing plants, oil and gas refineries, power generation systems, heat exchangers, furnace equipment, and superheater pipelines. These fittings excel at managing hot gases, steam, and corrosive fluids while maintaining mechanical stability during thermal cycling. The 800HT grade is especially well-suited for long-term service, ensuring reliability and performance in demanding conditions.
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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