ASTM B407 N08810 Nickel-Iron-Chromium Alloy Tube
ASTM B407 N08810 Nickel-Iron-Chromium Alloy Tube
ASTM B407 N08810 is a nickel-iron-chromium alloy suitable for seamless steel pipes, renowned for its excellent high-temperature strength, oxidation resistance, and resistance to carburization and corrosion. This alloy is widely used in applications requiring extremely high creep resistance and high-temperature performance, such as petrochemicals, nuclear steam generators, and heat exchangers. N08810 refers to Incoloy 800H, an alloy with controlled carbon content, exhibiting superior creep strength; while N08811 refers to Incoloy 800HT, which has even stricter control over the carbon, aluminum, and titanium content, resulting in even more outstanding creep strength and fatigue strength.
What is ASTM B 407 material?
Overview. ASTM B407 is a commonly used standard for seamless nickel-iron-chromium alloy tubing. It specifies requirements for chemical composition, mechanical properties, etc. Incoloy 800, 800H, and 800HT are commonly used grades in this standard.
B407 UNS N08810 tubing refers to seamless alloy tubing conforming to ASTM B407 standards and made from UNS N08810 material, commonly known as Incoloy 800H. The following is a detailed description:
Composition: This alloy is a high-performance nickel-iron-chromium alloy in which the contents of carbon, aluminum, and titanium are strictly controlled.
Nickel (30–35%)
Chromium (19–23%)
Iron (balance, approx. 39.5%)
Carbon (0.05–0.10%)
Aluminum (0.15–0.60%)
Titanium (0.15–0.60%)
| Alloy | Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Forging | Fitting |
|---|---|---|---|---|---|---|---|---|
| Alloy 800 (UNS N08800) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
| Alloy 800H (UNS N08810) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
| Alloy 800HT (UNS N08811) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
Advantages of Incoloy 800H/HT:
High-temperature strength
High creep rupture strength
Resistant to oxidation and carburizing under high-temperature environments
Good corrosion resistance in various acidic environments
Good corrosion resistance in various sulfur-containing atmospheres
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of Incoloy 800/800H/800HT alloy tubes/bars/plates/fittings, fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical properties certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
Email: ss@gneesteel.com
Gnee Steel is a supplier of Incoloy 800/800H/800HT steel, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness 0.1 to 100 mm; width 10-2500 mm); strips; alloy round bars (diameter 3-800 mm); flat bars (thickness 2-100 mm; width 10-500 mm); hexagonal bars (size 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with 800 series alloys, meeting or exceeding numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells Incoloy 800/800H/800HT steel, including pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
