Gnee Steel offers Incoloy 800 alloy tubes in various grades and specifications. Incoloy 800 is a nickel-chromium alloy with excellent tensile strength and outstanding oxidation and corrosion resistance. This Incoloy alloy is suitable for high-temperature and acidic environments. Each grade of Incoloy alloy possesses unique properties, making them highly sought after by customers. Incoloy 800/800H/800HT alloys contain various metallic elements, thus exhibiting superior qualities and characteristics required for diverse industrial applications.
Incoloy 800/800H/800HT Pipe Encyclopedia Information

Incoloy 800/800H/800HT Pipe Encyclopedia Information
Incoloy 800, 800H, and 800HT are nickel-iron-chromium alloy tubes (UNS N08800/N08810/N08811) designed for high-temperature strength, oxidation resistance, and carburization resistance. Due to their excellent stability at high temperatures, they are widely used in petrochemicals, heat exchangers, and power generation. These austenitic alloys exhibit excellent welding and forming properties, with 800H/HT offering even higher creep rupture strength.
What are the specifications of Incoloy 800?
Incoloy 800HT alloy has a narrower chemical composition range than the 800H alloy and requires heat treatment at a minimum of 2100°F (1149°C). Its carbon content is 0.06% to 0.10% (compared to 0.05% to 0.10% for 800H alloy), and the total aluminum and titanium content is 0.85% to 1.20% (compared to 0.30% to 1.20% for 800H alloy).

Incoloy 800/800H/800HT Pipe Specifications
| Standards | ASTM / ASME B407, B514, B515 / SB407, SB514, SB515 |
| Pipes & Tubes Size | 1 / 8″ NB – 24″ NB |
| EFW Pipe Size | 6″ NB – 48″ NB |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Manufacturing Techniques | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| Types | Seamless / ERW / EFW / Welded |
Equivalent Grades Of Incoloy 800/800H/800HT Pipes
| 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 |
Chemical Composition of Incoloy 800/800H/800HT Pipes
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 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 |
| 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 |
| 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 – 0.60ᴬ | 0.15 – 0.60ᴬ |
Mechanical Properties of Incoloy 800/800H/800HT Tubes
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 800 / 800H / 800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Incoloy 800/800H/800HT Pipes Price
| Incoloy 800/800H/800HT Pipes | ||||||
| Designation of Diameter | Outside Diameter | |||||
| Diameter | SCH 10S | |||||
| (B) | (A) | Meter | Weight Kg/Mtr | Wall | Price in | Price in |
| MM | Thk | INR/MTR | INR/KG | |||
| 1/8 | 6 | 10.03 | 0.027 | 1.2 | 80.5 – 110 | 300 – 400 |
| 1/4 | 8 | 13.7 | 0.049 | 1.65 | 110 – 200 | 200 – 300 |
| 3/8 | 10 | 17.2 | 0.063 | 1.65 | 169 – 250 | 250 – 320 |
| 1/2 | 15 | 21.3 | 1.02 | 2.11 | 234.8 – 289 | 220 – 320.5 |
| 3/4 | 20 | 26.7 | 1.3 | 2.11 | 300 – 350 | 220 – 300 |
| 1 | 25 | 33.4 | 2.13 | 2.77 | 459.9 – 600 | 200 – 400 |
| 11/4 | 32 | 24.2 | 2.73 | 2.77 | 527.9 – 600 | 200 – 250 |
| 11/2 | 40 | 48.3 | 3.16 | 2.77 | 611 – 750 | 205 – 300 |
| 2 | 50 | 60.03 | 3.99 | 2.77 | 797.75 – 810 | 205 – 300 |
| 21/2 | 65 | 73 | 5.34 | 3.05 | 1200.5 – 1300 | 205 – 300 |
| 3 | 80 | 88.9 | 6.56 | 3.05 | 1376 – 1566 | 205 – 300 |
| 31/2 | 90 | 101.6 | 7.53 | 3.05 | 1707.2 – 1890 | 200 – 350 |
| 4 | 100 | 114.3 | 8.5 | 3.05 | 1855 – 2000 | 220 – 300 |
| 5 | 125 | 141.3 | 11.74 | 3.4 | 2893.7 – 3000 | 205 – 310 |
| 6 | 150 | 168.3 | 14.04 | 3.4 | 3010 – 3500 | 240 – 350 |
| 8 | 200 | 219.1 | 20.077 | 3.76 | 5200.02 – 5500 | 220 – 300 |
| 10 | 250 | 273.1 | 28.2 | 4.19 | 8160 – 9000 | 300 – 350 |
| 12 | 300 | 323.9 | 36.54 | 4.57 | 10692.8 – 11000 | 300 – 350 |
| 14 | 350 | 355.6 | 41.99 | 4.78 | 12696.5 – 13566 | 320 – 360 |
| 16 | 400 | 406.4 | 48.07 | 4.78 | 15026.25 – 17655 | 325 – 430 |
Different Types of Alloy 800/800H/800HT Pipes & Tubes

Incoloy 800/800H/800HT Seamless Pipes
ASTM B407 800 Incoloy Alloy Seamless Tube
ASME SB407 800 Incoloy Alloy Seamless Tube
800 Incoloy Seamless Tube
Incoloy Alloy 800 Seamless Tube
Incoloy Alloy 800 Seamless Tube
Incoloy Alloy 800 Seamless Tube
Incoloy 800 Seamless Tube
Incoloy 800H Seamless Tube
Incoloy 1.4876 Seamless Tube
800 Alloy Seamless Tube
UNS N08800 Seamless Tube
Incoloy 800HT Seamless Tube
Nickel Alloy 800 Seamless Tube

Incoloy 800/800H/800HT Welded Pipes
800 Alloy Welded Pipe
800 Incoloy Welded Pipe
Incoloy 800HT Welded Pipe
Nickel Alloy 800 Welded Pipe
UNS N08810 Welded Pipe
Incoloy 800H Welded Pipe
Incoloy 800H Alloy Welded Pipe
Incoloy 1.4958 Welded Pipe
Incoloy 800 Alloy Welded Pipe
ASME SB514 800 Incoloy Alloy Welded Pipe
Incoloy 800 Alloy Welded Pipe

Incoloy 800/800H/800HT ERW Pipes
Incoloy 800HT resistance welded tube
800 Incoloy resistance welded tube
ASME SB514 800 Incoloy alloy resistance welded tube
Incoloy alloy 800 resistance welded tube
Incoloy alloy 800 resistance welded pipe
UNS N08811 resistance welded tube
Alloy 800 resistance welded tube
Incoloy 800H resistance welded tube
Incoloy 1.4859 resistance welded tube
Nickel alloy 800 resistance welded tube
Incoloy 800 resistance welded pipe

Food processing industry
Manufacturing industry
Oil and gas industry
Chemical industry
Pipeline engineering
General applications
Heating
Water supply systems
Power plants
Paper and pulp industry

Gnee Steel is a professional manufacturer 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. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ru@gneesteelgroup.com for a quote.

