ASTM B407 incoloy 800HT nickel alloy large diameter seamless pipe
ASTM B407 incoloy 800HT nickel alloy large diameter seamless pipe
ASTM B407 Incoloy 800HT is a large-diameter, seamless nickel-iron-chromium alloy tube with excellent resistance to high temperatures, oxidation, and corrosion, making it an ideal choice for chemical processing, power generation, and heat treatment applications. It is known for its excellent creep and rupture strength at elevated temperatures (above 1100°F or 593°C) and is more resistant to embrittlement than many stainless steels in this range. Key properties include good machinability and the ability to be welded using common stainless steel techniques.
What are the properties of INCOLOY 800?
This nickel-iron-chromium alloy offers good strength and excellent resistance to oxidation and carburization in high-temperature environments. Incoloy 800 also resists corrosion in many aqueous environments and is used in some steam power plants due to its resistance to stress cracking.
ASTM B407 UNS N08811 Chemical Composition:
| 800HT | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| 30-35 | 0.06-0.1 | / | 1.5 |
1 |
39.5Min | / | 0.015Max | / | 19-23 |
ASTM B407 UNS N08811 Mechanical Properties:
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.0 g/cm3 | 1357-1385 °C (2475-2525 °F) | Psi – 25,000 , MPa – 172 | Psi – 65,000 , MPa – 448 | 30 % |
incoloy 800HT nickel alloy large diameter seamless pipe specifications
| ASTM/ ASME Specification | ASTM B407/ASME SB 407, ASTM B163/ ASME SB163 , ASTM B515 / ASME SB 515 Standard Specification for Incoloy Alloy 800HT Seamless & Welded Superheater, Condenser, Hydraulic, Boiler and Heat-Exchanger Tubes |
| Shapes | 800HT Incoloy Round, Rectangular, Square, Hydraulic, Straight, "U" Shape, Coiled, Honed Tubes, Pan Cake Coils |
| Manufacturing Type | Seamless / ERW / Welded / Fabricated / CDW / CDS / DOM / CEW / 100% X Ray Welded |
| Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Standard | SUS, JIS, AISI, ASTM, GB, DIN, EN |
| Delivery Condition | Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF |
| Value Added Services |
Cutting Beveling Threading Draw & Expansion as per required Size & Length Ultrasonic Testing Annealed & Pickled Bending Destructive and Non Destructive |
| END | Plain End, Beveled End, Treaded Incoloy UNS N08811 Tube |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
| Technique | ASTM B407 Incoloy 800HT Cold drawn, Cold rolled, Hot rolled, Extrusion Tube |
Fabrication and Processing
Weldability: Can be welded using common stainless steel welding techniques.
Formability: Has good cold forming characteristics, but excessive cold forming may result in an "orange peel" surface texture due to the grain structure.
Standard Specifications
ASTM B407: This standard specifies requirements for seamless nickel and nickel alloy tubing.
UNS N08811: The specific UNS (Unified Numbering System) designation for Incoloy 800HT.
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
