

Nickel-based alloy pipes, as the name suggests, are alloys formed
by using nickel as the main component and adding other elements
such as chromium, molybdenum, copper, niobium, titanium, aluminum,
etc. Its most outstanding feature is that it has excellent
corrosion resistance, wear resistance and high temperature
resistance in the environment of high temperature, high pressure
and corrosive medium. This is also the reason why it is widely used
in aviation, aerospace, nuclear industry, petrochemical industry
and other fields. The production process of nickel-based alloy
pipes is complex and demanding. From the selection and proportion
of raw materials, to smelting, rolling, heat treatment and other
processes, each step of the process needs to be precisely
controlled to ensure the performance of the alloy. At present,
China has made a major breakthrough in the production technology of
nickel-based alloy pipes, and the nickel-based alloy pipes produced
have stable performance and high quality, which can meet the needs
of major fields.
Features:
1. Good stress corrosion cracking resistance performance
2. Good resistance for pitting and crevice corrosion performance
3. Good anti-oxidation and non-oxidzing heat acid performance
4. Good mechanical performance in both room temperature and up to
550°C
5. Have the pressure vessel authenticate when manufacture
temperature up to 450°C
Applications:
Incoloy 825 Alloy widely use in many kinds of industry field that
the working temperature no more than 550°C
1. Sulfuric acid factory usage for heating pipe, container,
basket,chain and so on
2. Cooling heat exchanger, marine product pipeline system and gas
pipeline of acidic environment
3. Heat exchanger, steam machine, washing, impregnation pipe, etc.
for phosphoric acid produce
4. Oil refining in the air heat exchanger
5. Food project
6. Chemical process
7. Application of high pressure oxygen flam-retardant alloy
Chemical Properties of Incoloy 825 Alloy
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| | ASME SB-423 ASME SB-829 ASME SB-163 ASME SB-751 ASME SB-775 | ASME SB-704 ASME SB-705 ASME SB-751 ASME SB-775 |
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| Tensile Strength (Rm N/mm2) | Yield strength (RP0.2N/mm2) | | |
| | | | |
Incoloy 825 (NS142) similiaer trademark |
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Incoloy alloy Incoloy alloy Incoloy alloy Incoloy alloy Incoloy
alloy
- ASM specifications for Incoloy Alloy 825.
Specification |
B163 | Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes |
B423 | Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825 and
N08221)* Seamless Pipe and Tube |
B424 | Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221)* Plate, Sheet, and
Strip |
B425 | Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825) |
B704 | Welded UNS N06625 and UNS N08825 Alloy Tubes |
B705 | Nickel-Alloy (UNS N06625 and N08825) Welded Pipe |
B751 | General Requirements for Nickel and Nickel Alloy Welded Tube |


