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Incoloy 800H Seamless Pipe

Incoloy 800H |UNS N08810|1.4876 Seamless Pipe

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Incoloy 800H Seamless Pipe (UNS N08810) is a high-performance nickel-iron-chromium alloy pipe engineered for superior strength and oxidation resistance in elevated temperature environments. With controlled carbon content for enhanced creep rupture properties, Incoloy 800H offers excellent structural stability and long-term durability in high-heat and high-pressure service conditions.

Tengqi is a professional Incoloy 800H seamless pipe manufacturer and supplier based in Fujian, China. From our advanced production facility, we manufacture premium nickel alloy seamless pipes using precision hot extrusion and cold finishing processes to ensure dimensional accuracy and consistent mechanical performance.

Our Incoloy 800H seamless pipes are available in a comprehensive range of outer diameters, wall thicknesses, and custom cut-to-length specifications, meeting the demanding requirements of petrochemical plants, heat treatment equipment, power generation facilities, and high-temperature process systems.

All pipes are produced in compliance with international standards such as ASTM B407 and ASME SB407, ensuring reliable high-temperature strength, oxidation resistance, and corrosion protection. Each product undergoes strict quality inspection, including hydrostatic testing, ultrasonic testing, eddy current testing, and PMI (Positive Material Identification), guaranteeing global compliance and long-lasting performance.

With strong manufacturing capability, strict quality control systems, competitive pricing, and efficient global delivery, Tengqi has established itself as a trusted supplier of Incoloy 800H seamless pipes for critical industrial applications worldwide.

SeamlessIncoloy 800H Pipe (Incoloy800H / UNS N08810 / W.Nr. 1.4876) is the high-carbon Incoloy 800 with controlled grain size for elevated-temperature creep service. Manufactured by Tengqi in Fujian, China, every heat is fully traceable, hydro-tested and available with third-party inspection (SGS / BV / TUV) on request.

Product Specifications

  • ASTM B161 / B163 — Seamless Tube & Pipe
  • ASTM B165 / B167 — Seamless Pipe
  • ASTM B407 / B423 — Seamless Pipe & Tube
  • ASTM B622 — Seamless Pipe & Tube
  • ASTM B829 — General Requirements
  • Finishing: solution annealed, pickled & polished; bright annealed available on request

Size Range

Outside Diameter (OD)Wall ThicknessLength
6 mm – 1016 mm (1/4"– 40")0.5 mm – 65 mm6 m / 12 m, or as required

Chemical Composition

Incoloy800H (UNS N08810) — Composition %

UNSCMnPSSiCrNiCuTiAlFe
N088100.05 – 0.10≤ 1.5≤ 0.045≤ 0.015≤ 1.019.0 – 23.030.0 – 35.0≤ 0.750.15 – 0.600.15 – 0.60≥ 39.5

Mechanical Properties

PropertyValue
Delivery ConditionSolution annealed, pickled & polished
Tensile Strength≥ 448 MPa
Yield Strength (0.2% offset)≥ 172 MPa
Elongation in 2 in. / 50 mm≥ 30%

Physical Properties

PropertyValue
Density7.94 g/cm3
Thermal Conductivity11.5 W/m·K
Specific Heat Capacity460 J/kg·K
Elastic Modulus196 GPa
Magnetic PropertiesPractically non-magnetic

Industry Applications

Heat Exchangers & Boiler Tubes
Power Plants & Superheaters
Chemical & Petrochemical Industry
Heat Treatment Furnaces
Nuclear Power
Boiler Feedwater Heaters
Pressure Vessels & Reactors
Hydrogen & Syngas Production

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Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province,355400,China

+86-577-88877003
+86-577-88877015
+86-577-88877019

+86 13587686960

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Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province,355400,China

+86-577-88877003
+86-577-88877015
+86-577-88877019

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