Incoloy 800/800H/800HT Pipes – ASTM B407 Seamless Pipe Supplier
What are Inconel 800, 800H & 800HT Pipes?
High strength, high performance nickel-iron-chromium alloy Inconel 800, 800H, 800HT pipe is manufactured from those superalloys which offer superior mechanical strength along with superb oxidation, carburization resistance and creep strength at high temperature. Inconel 800, 800H, 800HT alloy pipes are often used in petro chemical plants, heat exchangers, power generation plants, pressure vessels, and industrial furnaces where services are typically hotter than can be handled by standard stainless steels. Available in forms of seamless, welded, ERW, EFW and fabricated forms Incoloy 800H/HT SCH40 pipe offers outstanding toughness and reliability in the demanding service of corrosive and hot temperatures.
Premium Inconel 800, 800H & 800HT Pipe Supplier in India
We are a reliable manufacturer, supplier and exporter of high quality Inconel 800, 800H and 800HT pipes that cater to the toughest industrial needs. All our piping products are manufactured under international quality standards and are rigorously tested to deliver maximum efficiency under severe operational conditions.
As an Incoloy 800H pipe exporter we provide piping products to customers across oil and gas, petrochemicals, chemical, fertilizer, power generation, aerospace and heat treatment industries.
Our inventory includes:
- Alloy 800 Seamless Pipe
- Incoloy 800H Seamless Pipe
- Incoloy 800HT Welded Pipe
- EFW Pipes
- ERW Pipes
- SCH10, SCH40, SCH80 Pipes
- Custom-Length Pipes
- Large Diameter Pipes
- Thin-Wall and Heavy-Wall Pipes
The superior resistance to oxidation and carburization makes these alloys ideal for high-temperature process systems and critical industrial applications.
Key Features of Inconel 800 Pipes
- Excellent oxidation and carburization resistance
- High mechanical strength and creep resistance
- Outstanding corrosion resistance in acidic and high-temperature environments
- Performs well in temperatures up to 1100°C (2000°F)
- Resists chloride stress corrosion cracking
- Good weldability and workability
Alloy 800 Seamless Pipe Supplier in India
Alloy 800 seamless pipe is produced from solid billets. It is characterized by great mechanical strength and lack of weld seams. Seamless technology ensures better reliability in high pressure, high temperature systems.
Key Advantages
- Superior pressure handling capability
- Excellent creep resistance
- High tensile strength
- Enhanced corrosion resistance
- Reduced risk of leakage
- Long service life
Industries frequently select alloy 800 seamless pipe for critical process piping where reliability is essential.
ASTM B407 Incoloy 800 Seamless Pipe Product Range
We supply Incoloy 800, 800H, and 800HT pipes in a variety of forms to meet your exact needs:
1. Seamless Pipes
- Smooth, defect-free surfaces
Used in high-pressure and high-temperature applications - Sizes: 1/8” NB to 24” NB
2. Welded Pipes
- Available in ERW, EFW, and SAW forms
- Suitable for low- to medium-pressure systems
3. Square and Rectangular Pipes
- As reliable Incoloy UNS N08800 Square Pipes Suppliers, we offer high-precision square tubes for structural and architectural use.
4. Exhaust Pipes
- Incoloy Alloy 800 Exhaust Pipe Dealers with experience supplying to the automotive, aerospace, and energy industries.
Incoloy 800/800H/800HT Pipes & Tubes Equivalent Grades
| Grade | UNS No. | Werkstoff Nr. | Trade Name |
| Incoloy 800 | N08800 | 1.4876 | Alloy 800 |
| Incoloy 800H | N08810 | 1.4958 | Alloy 800H |
| Incoloy 800HT | N08811 | 1.4959 | Alloy 800HT |
Schedule and Size Chart – Incoloy 800 Pipes
| Nominal Pipe Size (NPS) | Outside Diameter (OD) (mm) | Schedule 10 (mm) | Schedule 40 (mm) | Schedule 80 (mm) | Schedule 160 (mm) |
| 1/2″ | 21.3 | 1.65 | 2.77 | 3.73 | 4.78 |
| 3/4″ | 26.7 | 1.65 | 2.87 | 3.91 | 5.56 |
| 1″ | 33.4 | 1.65 | 3.38 | 4.55 | 6.35 |
| 1 1/2″ | 48.3 | 1.65 | 3.68 | 5.08 | 7.14 |
| 2″ | 60.3 | 1.65 | 3.91 | 5.54 | 8.74 |
| 3″ | 88.9 | 1.91 | 5.49 | 7.62 | 11.13 |
| 4″ | 114.3 | 2.11 | 6.02 | 8.56 | 13.49 |
| 6″ | 168.3 | 2.77 | 7.11 | 10.97 | 18.26 |
| 8″ | 219.1 | 2.77 | 8.18 | 12.70 | 23.01 |
Specifications Chart – Inconel 800H Pipes
| Specification | Details |
| Product Name | Incoloy 800 / 800H / 800HT Pipes |
| Grades | 800 (UNS N08800), 800H (UNS N08810), 800HT (UNS N08811) |
| Standards | ASTM B407, ASTM B358, ASTM B163 |
| Dimensions | ANSI/ASME B36.10M, B36.19M |
| Pipe Type | Seamless, Welded, ERW, Fabricated |
| Outer Diameter Range | 6.35 mm to 219.1 mm (1/4″ to 8″) |
| Wall Thickness | 0.5 mm to 20 mm (SCH 10 to SCH 160) |
| Length | Single Random, Double Random & Cut Lengths |
| Form | Round Pipes, Square Pipes, Rectangular Pipes, Exhaust Pipes |
| End Finish | Plain End, Beveled End, Threaded |
| Manufacturing Method | Cold Drawn / Hot Rolled |
| Surface Finish | Polished, Annealed, Pickled, Sandblasted |
Physical Properties Chart – Incoloy 800/800H/800HT
| Property | Incoloy 800 | Incoloy 800H / 800HT |
| Density | 7.94 g/cm³ | 7.94 g/cm³ |
| Melting Point | 1357 – 1385 °C | 1350 – 1400 °C |
| Electrical Resistivity (20°C) | 1.12 μΩ·m | 1.12 μΩ·m |
| Thermal Conductivity (100°C) | 11.2 W/m·K | 11.2 W/m·K |
| Specific Heat (20–100°C) | 460 J/kg·K | 460 J/kg·K |
| Modulus of Elasticity (20°C) | 196 GPa | 196 GPa |
| Coefficient of Expansion (20–100°C) | 14.4 µm/m·°C | 14.4 µm/m·°C |
| Magnetic Permeability | ≤1.02 (at 200 Oe) | ≤1.02 |
Incoloy 800HT Pipes – Chemical Composition
| Element | 800 (%) | 800H (%) | 800HT (%) |
| Nickel | 30.0–35.0 | 30.0–35.0 | 30.0–35.0 |
| Chromium | 19.0–23.0 | 19.0–23.0 | 19.0–23.0 |
| Iron | Balance | Balance | Balance |
| Carbon | ≤ 0.10 | 0.05–0.10 | 0.06–0.10 |
| Aluminum | 0.15–0.60 | 0.15–0.60 | 0.25–0.60 |
| Titanium | 0.15–0.60 | 0.15–0.60 | 0.25–0.60 |
Incoloy UNS N08800 Pipes Mechanical Properties
| Property | 800 | 800H / 800HT |
| Tensile Strength (MPa) | ≥ 520 | ≥ 450 |
| Yield Strength (MPa) | ≥ 205 | ≥ 170 |
| Elongation (%) | ≥ 30 | ≥ 30 |
| Hardness (Brinell) | ≤ 150 HB | ≤ 150 HB |
Incoloy 800H/HT SCH40 Pipe Applications
The Incoloy 800H/HT SCH40 pipe is among the most widely used schedules in industrial piping systems due to its balance of wall thickness, strength, and flow efficiency.
Common applications include:
- Ethylene furnace tubing
- Hydrocarbon processing plants
- Heat treatment facilities
- Petrochemical refineries
- Nuclear steam generators
- Power plants
- Boiler systems
- Pressure vessels
- Chemical processing equipment
SCH40 pipes provide dependable performance while maintaining excellent resistance to thermal fatigue and oxidation.
Incoloy 800HT Welded Pipe Manufacturer in India
As an experienced Incoloy 800HT welded pipe manufacturer in India, we supply precision-welded pipes produced using advanced welding technologies and stringent quality control procedures.
Benefits of Welded Pipes
- Cost-effective solution
- Available in larger diameters
- Excellent dimensional accuracy
- Faster production cycles
- Suitable for low and medium pressure systems
Each pipe undergoes visual inspection, dimensional verification, hydrostatic testing, and non-destructive examination before dispatch.
ASTM B407 Incoloy 800H Pipe Pressure Rating
One of the most common buyer queries relates to ASTM B407 Incoloy 800H pipe pressure rating.
Pressure ratings depend on:
- Pipe schedule
- Outside diameter
- Operating temperature
- Design code
- Wall thickness
Because allowable stress values decrease with increasing temperature, actual pressure ratings should always be calculated according to ASME B31.3 and project design requirements.
Our technical team can assist with pressure calculations and material selection based on operating conditions.
Inconel Alloy 800H / 800HT UNS N08800 Seamless Pipe Supplier in India
We supply premium quality Inconel Alloy 800H/800HT UNS N08800 Seamless Pipe supplier in India solutions to domestic and international customers.
Available Sizes
- ½” NB to 24″ NB
- Custom diameters available
- SCH10 to SCHXXS
- Single random length
- Double random length
- Cut-to-length options
All products are manufactured from certified raw materials and tested according to international standards.
Inconel 800HT Piping Solution for Critical Industries
Our comprehensive Inconel 800HT piping solution portfolio includes:
- Seamless Pipes
- Welded Pipes
- Pipe Fittings
- Flanges
- Fasteners
- Custom Fabricated Components
This allows project owners and EPC contractors to source complete nickel alloy piping packages from a single reliable supplier.
Frequently Asked Questions
What is the difference between Incoloy 800, 800H, and 800HT?
Incoloy 800 is the base alloy, while 800H has higher carbon content for improved creep strength. 800HT further enhances high-temperature performance through controlled chemistry and grain size.
Is Incoloy 800 suitable for high-temperature service?
Yes. Incoloy 800 series alloys are specifically designed for temperatures above 600°C and offer excellent oxidation and carburization resistance.
What ASTM standard covers Incoloy 800 seamless pipe?
ASTM B407 covers seamless pipes manufactured from Incoloy 800, 800H, and 800HT alloys.
Where are Incoloy 800HT pipes used?
They are commonly used in petrochemical plants, power stations, heat exchangers, pressure vessels, and industrial furnaces.
What are the advantages of alloy 800 seamless pipe?
Key advantages include high-temperature strength, corrosion resistance, pressure resistance, and long operational life.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Inconel 800/800H/800HT Pipes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
