ASTM B407 Incoloy 800 Seamless Pipe Manufacturer
We, Xintongda Special Steel (XTD), are a leading Incoloy 800 seamless pipe manufacturer in China. Incoloy 800 pipe is a nickel-iron-chromium alloy that is constructed without a welded seam. It consists of approximately 30–35% nickel, around 19–23% chromium, and balanced iron. With over 4 decades of experience, we supply this pipe in compliance with the ASTM B407 standard. This pipe is produced through seamless manufacturing that does not involve welding at any stage of production. Incoloy 800 pipe is known for its ability to resist carburisation. It also maintains its stability and microstructure at high temperatures. We use hydrostatic and eddy-current tests to find flaws inside or outside the object. These tests verify structural integrity, making the pipe suitable for high-stress and high-temperature service conditions. The pipe works reliably in pressure applications at temperatures up to 1100°F (593°C). We are ISO-certified and maintain an annual supply capacity of 25000 tons. As a reliable Incoloy 800 Seamless Pipe supplier, we also provide custom Alloy 800 pipes.
Our Alloy 800 seamless pipe meets these specifications:
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Standard
ASTM B407
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OD Range
6-457 mm
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Thickness
1-65 mm
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Length
≤ 18 m

Alloy 800 Seamless Pipe Manufacturing Process
The manufacturing process of Alloy 800 Seamless pipe starts by heating a solid cylindrical billet. It is then pushed through a mandrel to make a rough pipe shell. Cold drawing or cold rolling is then used to make this shell smaller and the right size for the final dimensions, wall thickness, and surface finish. This results in a high-quality seamless pipe. Click here to learn in detail about the manufacturing process.
Features of Incoloy 800 Seamless Pipe
Incoloy 800 seamless pipe has 5 features that make it a preferred choice in many industries.
- High-Temperature Strength: High-temperature strength allows the Incoloy 800 Pipe to maintain excellent mechanical strength and structural integrity under long durations of heating. This makes it suitable for use as superheater and reheater tubing in power generation plants.
- Oxidation and Carburization Resistance: The high nickel and chromium content of this pipe forms a protective oxide layer that resists the absorption of oxygen and carbon at high temperatures. This is important for radiant tubes and muffles in industrial heat-treating furnaces.
- Stable Austenitic Structure: The pipe's austenitic structure stays stable and keeps it from turning brittle after being exposed to high temperatures for a long time. This ability to stay ductile makes sure that high-stress thermal processing equipment works reliably.
- Good Corrosion Resistance: The chromium in the pipe makes it resistant to many corrosive media, such as mild acids, aqueous environments, and sulfur-containing media. This makes it great for heat exchangers in chemical and petrochemical plants.
- Good Weldability: Incoloy 800 pipes can be easily joined using common welding techniques without preheating, simplifying fabrication and installation. This ease of joining is beneficial when constructing complex piping systems and pressure vessels.
Incoloy 800 UNS N08800 Equivalent Material
The equivalent designation of Incoloy 800 seamless pipe is UNS N08800. Some of the other global equivalents include Werkstoff Nr. 1.4876 and DIN 1.4876.
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| Incoloy 800 | N08800 | - | NS110 | NCF800 | - | 1.4876 | - |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
Application of Incoloy 800 Pipe
Heat Treatment and Power Generation
Chemical and Petrochemical Processing
Nuclear Industry
Paper Pulp Industry
Waste Treatment
Frequently Asked Questions
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What sizes of Incoloy 800 seamless pipe are available?Our Alloy 800 Seamless pipes are available in Outside Diameter ranging between 6-457 mm, a Thickness Range between 1 and 65 mm, and a maximum length of up to 18 m.
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Where can I buy Incoloy 800 pipes?You can buy certified ASTM B407 UNS N08800 pipe directly from us, at XTD, as we are a reputable Incoloy 800 seamless pipe manufacturer and supplier.
