Gnee is an Incoloy alloy producer and manufacturer, offering a full range of Inconel 800 seamless and welded tubing, including round, square, rectangular, hydraulic, and capillary tubes. Ample stock ensures fast delivery.
Incoloy 800 Tube
Gnee manufactures high-quality Incoloy 800 tubes designed for extreme high-temperature and corrosive environments. Our alloy tubes offer superior high-temperature oxidation and carburization resistance, and exhibit excellent corrosion resistance and stress cracking resistance in nitric acid, alkaline solutions, and chlorine-containing environments, making them a reliable choice for chemical, energy, and heat treatment equipment.
We offer seamless and welded tubes conforming to international standards such as ASTM B407, ASTM B514, and ASME SB-407, supporting the full range of UNS N08800/810/811 grades. Product forms include heat exchanger tubes, boiler tubes, and capillary tubes, and we can customize outer diameter, wall thickness, length, and processing conditions to meet your specific needs.
Available Types of Incoloy 800 Pipes & Tubes
Gnee provide aerospace-grade Incoloy 800 seamless pipes, welded pipes, etc, Custom-engineered tubing solutions tailored to your specific application requirements and specifications.
Inconel60 ERW Pipe 
601 Seamless Pipe 
Alloy 601 Round Pipe 
601 Inconel Polish Pipe 
Alloy 601 Welded Pipe 
601 Alloy Square Pipe 
601 ERW Welded Pipe 
601 Rectangular Pipe
Basic Information Of Incoloy 800 Pipe Product
The following is the product specifications of Alloy 800 pipe that Gnee can provide. If you need other information, please contact us for more information.
Description
Incoloy 800 tube is a nickel-iron-chromium based alloy designed for high-temperature and corrosive environments. This alloy exhibits excellent stability at high temperatures, maintains its austenitic microstructure, and demonstrates superior resistance to carburization, oxidation, and sulfidation. Its high chromium content effectively prevents performance degradation caused by carburization, while its good resistance to stress corrosion cracking and pitting ensures structural integrity even under extreme processing conditions. Furthermore, the alloy possesses good high-temperature strength and durability, making it suitable for long-term high-temperature service environments.
Incoloy 800 tube is widely used in power generation, petrochemicals, chemical processing, heat treatment, and industrial furnaces, commonly found in critical equipment such as heat exchangers, superheaters, reactors, and furnace components. It is available in both seamless and welded tubing forms, conforming to standards such as ASTM B407 and ASME SB 163, and has undergone multiple tests to ensure reliability. This alloy combines good weldability and machinability, exhibiting long-term stable performance in high-temperature and corrosive media, making it a reliable material choice for many industrial applications.
Specification Of Incoloy 800 Pipes / Tubes
| ASTM Specification | ASTM B829, ASTM B407, ASTM B775, ASTM B514, ASTM B751, ASTM B515 |
| Type | Seamless /ERW/ EFW / Welded / Fabricated /CDW /DOM/CEW Incoloy 800 Pipe |
| Size of Seamless Pipe | Wall thickness.: 0.05- 20 milimeter, 4 – 219 milimeter |
| Size of Welded Pipe | 5.0 to 1219.02 milimeter |
| size of EFW Pipe | 5.0 to 1219.02 milimeter |
| Seamless Tube Size | 3.35 milimeter To 101.6 milimeter OD |
| Welded Tube Size | 6.35 milimeter To 152 milimeter OD |
| Bwg & Swg | 18 Swg., 14 20 Swg., Swg. Swg., 12 16 Swg., 10 Swg. |
| Tubing wall thickness | 0.020″ –0.220″, (custom wall thicknesses available) |
| Length | Standard & Cut length , Single Random, Double Random Pipe |
| Finish | AP (Annealed & Pickled), BA (Bright & Annealed), NO.1, 2B, Polished, MF, HL, NO.4, Mirror finish, BA, 8K etc |
| Form | Hydraulic, Rectangular, Coiled, Square, Hollow, Round, Straight Pipes/tubes, “U” Shape, Pan Cake Coils, Boiler, LSAWetc. |
| Application | Dairy Pipe, Oil Pipe/tube, Gas Pipe/tube, Fluid Pipe/tube, Boiler Tube, Heat exchanger Tube |
ASTM Standards Of Incoloy 800 Tube
| Standard | Description |
| ASTM B407 | Nickel Iron Chromium Alloy Seamless Pipe |
| ASTM B514 | Welded Nickel Iron Chromium Alloy Pipe |
| ASTM B515 | Welded UNS N08120, N08800, N08810 and UNS N08811 Alloy Pipe |
| ASTM B751 | General Requirements for Nickel and Nickel Alloy Welded Pipe |
| ASTM B775 | General Requirements for Nickel and Nickel Alloy Welded Pipe |
| ASTM B829 | General Requirements for Nickel and Nickel Alloy Seamless Pipe |
Equivalent Grades Of Incoloy 800 Pipes
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 800 Pipe | 1.4876 | N08800 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 | XH32T |
Features and Advantages
Excellent Overall Corrosion Resistance
Performs exceptionally well in a variety of harsh environments, including:
- Good resistance to nitric acid, organic acids, and alkaline solutions.
- Resistant to chloride ion stress corrosion cracking, solving a common problem with stainless steel.
- Stable performance in high-temperature, high-pressure steam.
Outstanding Resistance to High-Temperature Oxidation and Carburizing
Its core advantage lies in its long-term high-temperature resistance:
- A dense chromium oxide (Cr₂O₃) protective film forms on the surface, allowing it to operate stably in oxidizing atmospheres up to 1100°C.
- Effectively resists carbon penetration (carburizing), preventing material embrittlement, making it ideal for industrial furnaces in carburizing atmospheres.
Excellent High-Temperature Mechanical Strength
Maintains reliable strength and resistance to deformation at high temperatures:
- Maintains high strength and excellent creep resistance above 500°C.
- The microstructure remains stable during long-term service, ensuring equipment lifespan.
Good processability and economy
Provides flexibility and cost advantages in material selection:
- Excellent processability: Easy to cold and hot work, and can be welded using conventional methods.
- Economical balance: The high iron content (≥39.5%) in the alloy provides a cost advantage compared to all-nickel-based alloys while ensuring performance.
Parameter Information
Chemical Composition %
| C | Cr | Fe | Ni | Al | Ti | Al/Ti | |
| Min | 19 | 39.5 | 30 | 0.15 | 0.15 | 0.3 | |
| Max | 0.1 | 23 | 35 | 0.6 | 0.6 | 1.2 |
Mechanical & Physical Properties
| Element | Incoloy Alloy 800 |
| Density | 7.94 g/cm3 |
| Melting Point | 1385 °C (2525 °F) |
| Tensile Strength | Psi – 75,000 , MPa – 520 |
| Yield Strength (0.2%Offset) | Psi – 30,000 , MPa – 205 |
| Elongation | 30% |
Size Chart
Incoloy 800 Seamless Pipes Size Chart
Based on ASTM B407 standard. Size range is typically 1/2″ NB – 16″ NB, and wall thickness follows ANSI B36.19M.
| NPS | OD (mm) | SCH 10S (WT mm / kg/m) | SCH 40S (WT mm / kg/m) | SCH 80S (WT mm / kg/m) |
| 1/8″ | 10.29 | – | 1.73 / 0.37 | 2.41 / 0.48 |
| 1/4″ | 13.72 | 1.65 / 0.48 | 2.24 / 0.64 | 3.02 / 0.81 |
| 3/8″ | 17.15 | 1.65 / 0.64 | 2.31 / 0.86 | 3.20 / 1.12 |
| 1/2″ | 21.34 | 2.11 / 1.01 | 2.77 / 1.29 | 3.73 / 1.64 |
| 3/4″ | 26.67 | 2.11 / 1.30 | 2.87 / 1.71 | 3.91 / 2.23 |
| 1″ | 33.4 | 2.77 / 2.12 | 3.38 / 2.54 | 4.55 / 3.28 |
| 1 1/4″ | 42.16 | 2.77 / 2.73 | 3.56 / 3.43 | 4.85 / 4.53 |
| 1 1/2″ | 48.26 | 2.77 / 3.15 | 3.68 / 4.11 | 5.08 / 5.49 |
| 2″ | 60.33 | 2.77 / 3.98 | 3.91 / 5.52 | 5.54 / 7.59 |
| 2 1/2″ | 73.03 | 3.05 / 5.34 | 5.16 / 8.76 | 7.01 / 11.58 |
Incoloy 800 Welded Pipes (including EFW) Size Chart
Compliant with ASTM B514 standard, size range is 1/2″ NB – 100″ NB (EFW is applicable to 6″ NB and above).
| NPS | OD (mm) | SCH 10S (WT mm / kg/m) | SCH 40S (WT mm / kg/m) | SCH 80S (WT mm / kg/m) |
| 1/8″ | 10.29 | – | 1.73 / 0.37 | 2.41 / 0.48 |
| 1/4″ | 13.72 | 1.65 / 0.48 | 2.24 / 0.64 | 3.02 / 0.81 |
| 3/8″ | 17.15 | 1.65 / 0.64 | 2.31 / 0.86 | 3.20 / 1.12 |
| 1/2″ | 21.34 | 2.11 / 1.01 | 2.77 / 1.29 | 3.73 / 1.64 |
| 3/4″ | 26.67 | 2.11 / 1.30 | 2.87 / 1.71 | 3.91 / 2.23 |
| 1″ | 33.4 | 2.77 / 2.12 | 3.38 / 2.54 | 4.55 / 3.28 |
| 1 1/4″ | 42.16 | 2.77 / 2.73 | 3.56 / 3.43 | 4.85 / 4.53 |
| 1 1/2″ | 48.26 | 2.77 / 3.15 | 3.68 / 4.11 | 5.08 / 5.49 |
| 2″ | 60.33 | 2.77 / 3.98 | 3.91 / 5.52 | 5.54 / 7.59 |
| 2 1/2″ | 73.03 | 3.05 / 5.34 | 5.16 / 8.76 | 7.01 / 11.58 |
Incoloy 800 ERW Pipe Size Chart
Conforming to ASTM B514 standards, sizes typically range from 1/2″ NB to 24″ NB, suitable for medium and low pressure applications.
| NPS | OD (mm) | SCH 10S (WT mm / kg/m) | SCH 40S (WT mm / kg/m) | SCH 80S (WT mm / kg/m) |
| 1/8″ | 10.29 | – | 1.73 / 0.37 | 2.41 / 0.48 |
| 1/4″ | 13.72 | 1.65 / 0.48 | 2.24 / 0.64 | 3.02 / 0.81 |
| 3/8″ | 17.15 | 1.65 / 0.64 | 2.31 / 0.86 | 3.20 / 1.12 |
| 1/2″ | 21.34 | 2.11 / 1.01 | 2.77 / 1.29 | 3.73 / 1.64 |
| 3/4″ | 26.67 | 2.11 / 1.30 | 2.87 / 1.71 | 3.91 / 2.23 |
| 1″ | 33.4 | 2.77 / 2.12 | 3.38 / 2.54 | 4.55 / 3.28 |
| 1 1/4″ | 42.16 | 2.77 / 2.73 | 3.56 / 3.43 | 4.85 / 4.53 |
| 1 1/2″ | 48.26 | 2.77 / 3.15 | 3.68 / 4.11 | 5.08 / 5.49 |
| 2″ | 60.33 | 2.77 / 3.98 | 3.91 / 5.52 | 5.54 / 7.59 |
| 2 1/2″ | 73.03 | 3.05 / 5.34 | 5.16 / 8.76 | 7.01 / 11.58 |
Application Of Incoloy Alloy 800 Tube / pipe
Incoloy 800 is an iron-nickel-chromium austenitic alloy that is resistant to high-temperature oxidation and corrosion. Delivering consistent strength and durability under extreme stress and heat conditions.
Nuclear Energy Industry
- Steam Generator Heat Transfer Tubes
- Reheater Tubes
Energy and Environmental Protection
- Waste Incineration Power Plant Boiler Superheater Tubes
Petrochemical Industry
- Ethylene Cracking Furnace Tubes
- Ammonia Synthesis Conversion Furnace Tubes
Chemical Industry and High-Temperature Industry
- Ammonia Synthesis Conversion Furnace Tubes
- High-Temperature Heat Exchanger Tubes
Why Choose Incoloy 800 Pipe from Gnee？
Leverage Gnee’s 20+ years of high-temperature alloy expertise and a vertically integrated supply chain for Incoloy 800 pipe/tube. Our in-house control from melting to extrusion, welding, and solution treatment guarantees superior quality and cost efficiency.
We specialize in custom Incoloy 800 pipes/tubes that excel in extreme heat, providing superior oxidation resistance up to 900℃ (long-term service temperature). With comprehensive certification (e.g., ASTM B409/ASME SB409 compliance) and competitive pricing, we are your ideal partner for demanding applications in thermal processing, petrochemicals, nuclear power, and marine engineering.
What other alloy Pipe grades do we supply?
Gnee specializes in the research and development, production and global distribution of Incoloy 800 pipes and other high-performance nickel alloy solutions. We also provide Incoloy bars, Hastelly bars, Monel bars and pure Nickel bars, etc.
FAQ
Below are some frequently asked questions about Incoloy 800. If you have any other questions, please feel free to contact us.
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