ASTM B366 UNS NO8810 180 RETURN 180 Deg Elbow Buttweld Fitting For Ethylene Cracking Furnace
ASTM B366 UNS NO8810 180 RETURN 180 Deg Elbow Buttweld Fitting For Ethylene Cracking Furnace
ASTM B366 UNS N08810 elbow is an ideal choice for high temperature, corrosive media conveying systems, especially for extreme working conditions such as petrochemical cracking and nuclear power.
Its high nickel-chromium content and optimized carbon control design balance high temperature strength and corrosion resistance. For long-term high temperature applications (＞700°C), it is recommended to choose 800HT (UNS N08811) to optimize the lasting strength.
Equivalent Grades Of Incoloy 800H Pipe Fitting
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | NCF 800H | NA 15(H) | ЭИ670 | Z8NC33-21 | X5NiCrAlTi31-20 | XH32T |
Chemical Composition Of Incoloy 800H Pipe Fitting
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| Incoloy 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 |
Mechanical Properties Of Incoloy 800H Pipe Fitting
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.94 g/cm3 | 1350-1400 ℃ | Psi - 75,000 , MPa -520 | Psi - 30,000 , MPa - 205 | 30 - 35 % |
Application scenarios
Petrochemical industry:
Ethylene cracking furnace outlet pipe elbow.
Catalytic reforming unit high temperature reactor connecting pipe.
Energy and nuclear power:
Nuclear reactor heat exchanger loop.
Gas turbine exhaust system.
Chemical equipment:
Ammonia synthesis unit high temperature gas pipeline.
Sulfuric acid regeneration system high temperature section.
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