Inconel 800 Pipe ASTM B407 Alloy 800 Seamless & Welded Tubing Supplier
The Inconel 800 Pipe is a nickel-iron-chromium alloy that has a determining feature of great resistance to heat, oxidation, and carburization. It is very strong and stable even at high temperatures hence it finds application in thermal processing, chemical as well as power generation.
Inconel 800 is available in seamless and welded versions with high accuracy, and is designed to last long. The pipes are carefully made to perform reliably in case of heat and pressure. UNS N08800 Alloy 800 pipes with smooth finishes and corrosion resistant surfaces are supplied with smooth corrosion resistant finishes, which are typically used in heat exchangers, furnaces, refineries, and marine systems.
Alloy 800 Series Pipes and Tubes Inconel 800 800H 800HT Seamless and Welded Supplier
Incoloy 800 Pipe
Alloy 800HT Welded Pipe
Inconel 800 Seamless Pipe
What is Inconel 800 Alloy and Its Variants Incoloy 800, 800H and 800HT Pipes
Inconel 800 Alloy is a nickel-iron-chromium alloy that is intended to offer high oxidation, carburization as well as high-temperature corrosion resistance. Offered to be used in an environment where regular stainless steels lose strength, Inconel 800 pipes are characterized by excellent structural stability and mechanical lifetime even in cases of constant tower of heat exposure. The alloy has a high-temperature microstructure and performance, up to 1100 C and therefore it is very reliable to be used in the tough industrial applications.
The generic high-temperature service and process piping is made of incoloy 800 pipes. The Incoloy 800H pipes are more carbon-rich, which increases the creep strength and rupture strength when used in prolonged exposure in heat-treating or furnace atmosphere. Incoloy 800HT pipes have selectively added carbon, aluminum and titanium additions to enhance the oxidation resistance and mechanical stability of the pipes in harsh thermal cycles. These (combinations of) Alloy 800 series pipes and tubes are common in chemical and petrochemical plant, refinery, heat exchanger, superheater, and power-generation systems. We are a supplier and manufacturer of seamless and welded Inconel 800 800H 800HT pipes of ASTM B407 and ASME SB407 standards as a guarantee of uniform quality and performance.
Inconel 800 Pipe Grade Standard and Specification
| Specification | Details |
| Alloy 800/800H/800HT Seamless Pipe and Tube | ASTM B407 / ASME SB407 |
| Alloy 800/800H/800HT Welded Pipe | ASTM B514 / ASME SB514 |
| Alloy 800/800H/800HT Welded Tube | ASTM B515 / ASME SB515 |
| Standard | ASTM, ASME and API |
| Type | Seamless / ERW / Welded / Fabricated |
| Length | Single Random, Double Random & Required Length, Cut Length |
| Pipe Size | 15 NB UP TO 800/800H/800HT NB IN SCH 5S, 10S,10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS |
| Tube Size | 1 mm OD upto 254 mm OD in 0.2 TO 20 mm thickness |
| End | Plain End, Beveled End, Threaded |
Trusted Inconel 800 Pipe Supplier and Exporter Buy Alloy 800, 800H, 800HT Seamless and Welded Pipes from a Certified Manufacturer
ASTM B514 Inconel 800 Rectangle Pipe Supplier and Exporter
GOST 3И670 Inconel 800 Welded Pipe Manufacturer
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Inconel 800 Pipe Material Supplier and Stockist
Inconel UNS N08800 N08810 N08811 Welded Pipe Manufacturer
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ASME SB407 Incoloy 800 Seamless Pipe Manufacturer and Exporter
Equivalent Grades, Chemical Composition and Mechanical properties Information
Inconel 800 Pipes & Tubes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 800 | 1.4876 | N08800 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 | XH32T |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | NCF 800H | NA 15(H) | ЭИ670 | Z8NC33-21 | X5NiCrAlTi31-20 | XH32T |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | ЭИ670 | – | X8NiCrAlTi32-21 | XH32T |
Inconel 800 Pipes & Tubes Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| Alloy 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| Alloy 800H | 0.05 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| Alloy 800HT | 0.06 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
Inconel 800 Pipes & Tubing Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Incoloy 800/800H/800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Wall Thickness and Pipe Schedule Chart for Alloy 800HT Seamless Pipe
| Nominal | O.D. Inches | 10s | 10 | 40s & Std | 40 | 80s & E.H. | 80 | 160 |
| 1/8 | .405 | .049 | .049 | .068 | .068 | .095 | .095 | |
| 1/4 | .540 | .065 | .065 | .088 | .088 | .119 | .119 | |
| 3/8 | .675 | .065 | .065 | .091 | .091 | .126 | .126 | |
| 1/2 | .840 | .083 | .083 | .109 | .109 | .147 | .147 | .187 |
| 3/4 | 1.050 | .083 | .083 | .113 | .113 | .154 | .154 | .218 |
| 1 | 1.315 | .109 | .109 | .133 | .133 | .179 | .179 | .250 |
| 1 1/4 | 1.660 | .109 | .109 | .140 | .140 | .191 | .191 | .250 |
| 1 1/2 | 1.900 | .109 | .109 | .145 | .145 | .200 | .200 | .281 |
| 2 | 2.375 | .109 | .109 | .154 | .154 | .218 | .218 | .343 |
| 2 1/2 | 2.875 | .120 | .120 | .203 | .203 | .276 | .276 | .375 |
| 3 | 3.500 | .120 | .120 | .216 | .216 | .300 | .300 | .437 |
| 3 1/2 | 4.000 | .120 | .120 | .226 | .226 | .318 | .318 | |
| 4 | 4.500 | .120 | .120 | .237 | .237 | .337 | .337 | .531 |
| 4 1/2 | 5.000 | .247 | .355 | |||||
| 5 | 5.563 | .134 | .134 | .258 | .258 | .375 | .375 | .625 |
| 6 | 6.625 | .134 | .134 | .280 | .280 | .432 | .432 | .718 |
| 7 | 7.625 | .301 | .500 | |||||
| 8 | 8.625 | .148 | .148 | .322 | .322 | .500 | .500 | .906 |
| 9 | 9.625 | .342 | .500 | |||||
| 10 | 10.750 | .165 | .165 | .365 | .365 | .500 | .593 | 1.125 |
| 11 | 11.750 | .375 | .500 | |||||
| 12 | 12.750 | .180 | .180 | .375 | .406 | .500 | .687 | 1.312 |
| 14 | 14.000 | .188 | .250 | .375 | .437 | .500 | .750 | 1.406 |
| 16 | 16.000 | .188 | .250 | .375 | .500 | .500 | .843 | 1.593 |
| 18 | 18.000 | .188 | .250 | .375 | .562 | .500 | .937 | 1.781 |
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Applications of Inconel 800 Pipes and Tubes
Inconel 800 pipelines and tubes have been used extensively in those industrial applications where high performance is required in hot and corrosive conditions. These nickel-iron-chromium alloys are manufactured to ASTM B407 and ASME SB407 standards, and can maintain their strength and metallurgical stability in continuous service to temperatures of 1100 o C. Oxidation, carburization, and chloride stress cracking resistance of the alloy renders it to be useful in heat exchangers, boilers, superheaters, pressure vessels, and steam-generating plant.
Petrochemical units, fertilizer plant and power generation systems are alloys where alloy 800 is preferred due to its ability to sustain temperature changes and aggressive media which may cause weakening of traditional stainless steels. Circuits with high pressure require seamless pipes, whereas large process lines require welded forms. Uns N08800 Inconel 800 pipes are specified by engineers when the refinery, chemical processing facilities, marine condensers, or thermal treatment furnace needs to have durability, efficiency and low maintenance. Being a reliable supplier and manufacturer we offer accurately fabricated Inconel 800 pipes and tubes that give long life and ensure safety of operation within all the critical applications.
Inconel 800 pipes and tubes find application in various industries which work in highly peak environments in terms of temperature and corrosiveness. The most effective areas of Alloy 800, 800H and 800HT grades are listed below:
- Unit chemical processing groups – hot acids, chlorides, and corrosive gas streams.
- Petrochemical facilities- transfer lines, reformer tubes and high pressure piping systems.
- Oil and gas refineries- heater coils, flare tip and condensate recovery systems.
- Power plants – superheaters, steam lines and pressure vessels.
- Heat exchangers and boilers – to ensure a uniform performance during thermal cycling.
- Components Furnace part – radiant tubes, headers, and conveyor belts within heat treatment.
- Divine and offshore constructions condensers, evaporators, brine heaters and in salt environments.
- Nuclear and thermal reactors – components that are subjected to radiation and high stress.
- Urea plants, fertilizers, and ammonia converters, and carbamate pipelines.
- High temperature heating systems: aerospace and industrials need high temperature oxidation resistance.
- As a reliable supplier and manufacturer, we are offering Inconel 800, 800H, and 800HT in seamless and welded types in order to maintain good reliability, safety, and efficiency in the tedious operations.
Contact Stellar Alloys Today!
Our technical experts are ready to help you find the right Inconel 800, 800H, and 800HT pipes and tubes for your project. As a trusted supplier and manufacturer, we deliver high-quality Alloy 800 series seamless and welded pipes that meet ASTM B407 / ASME SB407 standards. Call us today or click below to share your requirement for Inconel pipe and tube solutions.
Frequently Asked Questions About Inconel 800 and Alloy 800 Pipes
Inconel 800 is a nickel-iron-chromium alloy developed for superior strength and oxidation resistance at high temperatures. It performs reliably under thermal cycling and carburizing conditions and is produced according to ASTM B407 / ASME SB407 standards to ensure uniform mechanical properties.
Inconel 800 pipes are used in heat exchangers, superheaters, boilers, reformer coils, and furnace components. The alloy’s stability under high heat makes it ideal for chemical processing, oil refining, and power-generation systems where oxidation and carburization resistance are critical.
Inconel 600 contains a higher nickel percentage, providing better resistance in reducing and chloride-rich media. Inconel 800, with more iron and chromium, offers superior structural stability and strength at elevated temperatures, making it suitable for heat-resistant structural applications.
Inconel 800H is a controlled-carbon variant of Inconel 800. Its higher carbon content enhances creep and rupture strength during prolonged high-temperature exposure. Both have similar corrosion resistance, but 800H is preferred for continuous service above 700 °C.
There is no difference between Inconel 800 and Alloy 800. “Inconel” is the trade name, while “Alloy 800” is the generic designation for the same UNS N08800 material produced to ASTM B407 / ASME SB407 specifications.
Inconel 800 pipes resist oxidation, carburization, and scaling up to about 1100 °C (2010 °F). They retain strength, ductility, and corrosion resistance under prolonged heat and stress, ensuring dependable performance in pressure vessels and fired-heater systems.
Due to its high nickel content, Inconel 800 is essentially non-magnetic in the annealed condition. Slight magnetism may appear after cold working or long exposure to high temperatures, but it maintains low magnetic permeability suitable for sensitive industrial environments.
Inconel 800 pipes and tubes conform to ASTM B407 / ASME SB407 standards and are designated UNS N08800 and DIN 1.4876. These international specifications govern chemical composition, mechanical properties, and testing to ensure consistent global quality.
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