Nickel Alloy 800HT is nickel-iron-chromium alloy, has many of the same characteristics of other members of the 800 alloy grouping. Incoloy 800HT has roughly the same chemical composition as Incoloy 800H, differing only slightly in carbon, aluminum, and titanium levels.
Incoloy 800HT Chemical Composition:
- - Fe 39.5% min
- - Ni 30-35%
- - Cr 19-23%
- - Al+Ti .85-1.20%
- - C .06-.10%
ASTM Specifications
Alloy | Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet / Plate | Bar | Forging | Fitting |
|---|---|---|---|---|---|---|---|---|
Alloy 800 (UNS N08800) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
Alloy 800H (UNS N08810) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
Alloy 800HT (UNS N08811) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
Incoloy 800HT Application
1. Hydrocarbon cracking.
2. Industrial furnace and boiler components and equipment.
3. Equipment for Heat-Treating.
4. Pressure vessels and heat exchangers.
5. Chemical and Petrochemical processing.
6. Ethylene furnace quench boilers.
7. Hydrocarbon cracking.
8. Valves, fittings and other components exposed to corrosive attack from 1100-1800° F.
9. Industrial furnaces.
10. Heat-treating equipment.
11. Chemical and petrochemical processing.
12. Super-heater and re-heaters in power plants.
13. Pressure vessels.
14. Heat exchangers.
Incoloy 800HT in pipe, tube, sheet, strip, plate round bar, flat bar, forging stock, hexagon, and wire. Each form of Incoloy 800HT meets different critical industrial standards from organizations like ASTM, ASME, BS, SEW, DIN, EN, and ISO.
Nickel Alloy 800HT and Incoloy 800HT Standards
- Rod, Bar, Wire, Forgings, and Forging Stock
- ASTM B 408 & ASME SB 408
- ASTM B 564 & ASME SB 564
- ASME Code Case 1325
- ASME Code Case 1949
- ISO 9723
- ISO 9724
- ISO 9725
- BS 3076NA15
- BS 3075NA15
- SEW 470
- VdTÜV 412 & 434
- DIN 17460
- EN 10095
- Plate, Sheet, and Strip
- ASTM A 240/A 480
- ASME SA 240/SA 480
- ASTM B 409/B 906
- ASME SB 409/SB 906
- ASME Code Case 1325
- ASME Code Case 2339
- BS 3072NA15
- BS 3073NA15
- SEW 470
- VdTÜV 412 & 434
- DIN 17460
- EN 10028-7 & EN 10095
- Pipe & Tube
- ASTM B 163
- ASME SB 163
- ASTM B 407/B 829
- ASME SB 407/SB 829
- ASTM B 514/B 775
- ASME SB 514/SB 775
- ASTM B 515/B 751
- ASME SB 515/SB 751
- ASME Code Case 1325 and 1983
- BS 3074NA15
- SEW 470
- VdTÜV 412 & 434
- ISO 6207
- DIN 17459
- Fittings
- ASTM B 366
- ASME SB 366




