Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
Add to Cart
ASTM B407 UNS N08811 DIN 1.4959 / INCOLOY 800HT SEAMLESS ALLOY STEEL PIPE
Alloy 800HT are high-performance alloys that belong to the Incoloy family, which are nickel-chromium-iron alloys known for their excellent high-temperature strength and oxidation resistance. It is known for its excellent resistance to oxidation and carburization, making it ideal for applications in high-temperature environments.
Here are some key characteristics of Alloy 800HT seamless tube:
High-Temperature Strength: Alloy 800HT maintains strength at elevated temperatures, making it suitable for use in furnace applications and heat exchangers.
Oxidation and Carburization Resistance: The alloy's high nickel and chromium content provide substantial resistance to oxidation and carburization, extending its lifespan in harsh environments.
Corrosion Resistance: While it is not completely immune to corrosion, Alloy 800HT offers good resistance against various corrosive media, particularly in high-temperature conditions.
Fabricability: The alloy can be easily processed through a variety of methods, including welding, machining, and forming, allowing for versatile usage.
Thermal Stability: It shows good stability across a range of temperatures, which is essential for applications that experience fluctuating temperatures.
800 / 800H / 800HT Incoloy Pipes 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 |
ASTM B407 Incoloy 800H/HT Seamless Alloy Steel Pipes Chemistry Composition
| Ni, % | Cu, % | Fe, % | Mn, % | C, % | Si, % | S, % | Cr, % | Al, % | Ti, % |
| 30.0-35.0 | 0.75 max | 39.5 min | 1.50 max | 0.06-0.10 | 1.00 max | 0.015 max | 19.0-23.0 | 0.15-0.60 | 0.15-0.60 |
ASTM B407 Incoloy 800H/HT Seamless Alloy Steel Pipes Mechanical Properties
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | |
| 450 min | 170 min | 30 min | Hot-finished Annealed |
| 450 min | 170 min | 30 min | Cold-worked Annealed |
Outside Diameter & Tolerance
| | Outside Diameter, mm | Tolerance, mm |
| Cold-Finished | 12.7≤OD＜15.8 | ±0.127 |
| 15.8＜OD≤38.1 | ±0.19 | |
| 38.1＜OD≤88.9 | ±0.254 | |
| 88.9＜OD≤114.3 | ±0.381 | |
| 114.3＜OD≤152.4 | ±0.508 | |
| 152.4＜OD≤168.3 | ±0.635 | |
| Hot-Finished | 63.5≤OD＜139.7 | ±0.787 |
| 139.7≤OD≤234.9 | ±1.19 |
Wall thickness & Tolerance
|
| Outside Diameter, mm | Tolerance, % | |
| Average Wall | Minimum Wall | ||
| Cold-Finished | 12.7≤OD＜15.8 | ±15.0 | - |
| 15.8＜OD≤38.1 | ±10.0 | - | |
| 38.1＜OD≤88.9 | ±10.0 | - | |
| 88.9＜OD≤114.3 | ±10.0 | - | |
| 114.3＜OD≤152.4 | ±12.5 | - | |
| 152.4＜OD≤168.3 | ±12.5 | - | |
| Hot-Finished | 63.5≤OD＜139.7 | ±12.5 | +28.5/-0 |
| 139.7≤OD≤234.9 | ±12.5 | +28.5/-0 | |
Application
- Ethylene furnace quench boilers
- Hydrocarbon cracking
- Valves, fittings and other components exposed to corrosive attack from 1100-1800° F
- Industrial furnaces
- Heat-treating equipment
- Chemical and petrochemical processing
- Super-heater and re-heaters in power plants
- Pressure vessels
- Heat exchangers
