B407 UNS N08810 Incoloy 800H nickel alloy steel tube
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ASTM B407 Incoloy 800H tube is supplied either in the form of cold worked or hot finished manner. Aside from conforming to the chemistry requirements of the said specification ASTM B407 Incoloy 800H tube, is to be heat treated at determined annealing temperatures.
The characteristics of Incoloy 800H
High temperature strength
High creep rupture strength
Resistant to oxidation and carburization in high temperature environments
Good corrosion resistance in many acidic environments
Good resistance to many sulfur-containing atmospheres
B407 Incoloy 800H tube Mechanical Properties
| Alloy | Tensile Stress (MPa) min | Yield Stress 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 800H | Psi - 75,000 , MPa - 520 | Psi - 30,000 , MPa -205 | 30 | - | - |
B407 Incoloy 800H tube Chemical Composition
| Grade | ASTM B407 Incoloy 800H |
| min | max |
| C | 0.05 | 0.1 |
| Mn | – | 1.5 |
| Si | – | 1 |
| Al | 0.15 | 0.6 |
| Ti | 0.15 | 0.6 |
| P | – | – |
| S | – | 0.015 |
| Cr | 19 | 23 |
| Ni | 30 | 35 |
| Cu | – | 0.75 |
| Fe | 39.5 | – |
B407 Incoloy 800H tube Physical Properties
| Grade | ASTM B407 Incoloy 800H |
| Density | 7.94 g/cm3 |
| Melting Point | 1385 °C (2525 °F) |
B407 Incoloy 800H tube Equivalent Grade
| Grade | ASTM B407 Incoloy 800H |
| UNS No | N08810 |
| Old British | BS | NA 15(H) |
| En | X10NiCrAlTi32-20 |
| Euronorm | No | 1.4958 / 1.4876 |
| AFNOR | Z8NC32-21 |
| Japanese JIS | NCF 800H |
| GOST | ЭИ670 |
| OR | XH32T |
B407 Incoloy 800H tube Application
- Gas Processing Industries
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Chemical Industries
- Oil & Gas Industries
- Fertilizers Industries
- Sugar Industries
Alloys 800H/HT are used in a variety of applications involving exposure to corrosive environments and high temperatures such as heat treating equipment, chemical and petrochemical processing, nuclear power plants and the paper pulp industry. Heat-treating equipment such as baskets, trays, and fixtures employ Incoloy 800H/HT. Chemical and petrochemical processing industries use the alloys for heat exchangers and other piping systems in nitric acid media especially where resistance to chloride stress-corrosion cracking is required. Power plants use them for super-heater and re-heater tubing.
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