ASME SB163 N08825 Seamless Nickel Alloy Tube for Heat Exchanger Applications
ASME SB163 N08825 seamless tube is manufactured from nickel-iron-chromium alloy (Incoloy 825) and is designed for heat exchanger, condenser, chemical processing, and industrial equipment applications.
Manufactured according to ASME SB163 / ASTM B163 requirements, N08825 seamless tubes are produced with controlled chemical composition, mechanical properties, and dimensional tolerances for nickel alloy tube applications.
The Incoloy 825 alloy combines nickel, chromium, iron, molybdenum, copper, and titanium alloying elements, making it suitable for equipment exposed to corrosive process environments and elevated temperature service conditions.
Material and Standard
UNS N08825 Nickel-Iron-Chromium Alloy
Standard: ASME SB163 / ASTM B163
Material Grade: UNS N08825
Common Name: Incoloy 825
Material Type: Nickel-Iron-Chromium Alloy
Tube Type: Seamless Tube
ASME SB163 covers seamless nickel and nickel alloy condenser and heat exchanger tubes. N08825 alloy tubes are commonly used in applications requiring nickel alloy materials for corrosion-resistant service environments.
Chemical Composition
Typical alloy composition characteristics of UNS N08825 include:
| Element |
Function |
| Nickel (Ni) |
Base alloy element |
| Chromium (Cr) |
Alloying element for corrosion resistance |
| Iron (Fe) |
Alloy matrix element |
| Molybdenum (Mo) |
Alloying element for corrosion service |
| Copper (Cu) |
Alloying element |
| Titanium (Ti) |
Stabilizing element |
The chemical composition shall comply with ASME SB163 / ASTM B163 requirements.
Manufacturing Process
ASME SB163 N08825 seamless tubes are manufactured through controlled production processes:
Alloy Billet Preparation
Nickel alloy billets are prepared according to material specifications.
Hot Extrusion
The billets are processed into seamless tube forms through hot working processes.
Cold Drawing
Cold drawing may be applied to achieve required outside diameter, wall thickness, and dimensional accuracy.
Heat Treatment and Finishing
Final processes include:
- Heat treatment
- Straightening
- Surface finishing
- Dimensional inspection
Technical Features
Nickel Alloy Construction
N08825 Incoloy 825 provides a nickel-based alloy solution for applications requiring resistance to various industrial process environments.
Seamless Tube Structure
The seamless manufacturing process provides uniform tube geometry and is commonly used in heat exchanger and condenser equipment.
Heat Exchanger Compatibility
N08825 seamless tubes are widely applied in thermal equipment where nickel alloy tubes are required for process conditions.
Product Specifications
| Item |
Specification |
| Product Name |
ASME SB163 N08825 Seamless Tube |
| Material Grade |
UNS N08825 |
| Trade Name |
Incoloy 825 |
| Standard |
ASME SB163 / ASTM B163 |
| Alloy Type |
Nickel-Iron-Chromium Alloy |
| Tube Type |
Seamless |
| Shape |
Round Tube |
| Surface |
Bright Annealed / Mill Finished |
| Application |
Heat Exchanger, Condenser, Chemical Equipment |
Available Dimensions
| Parameter |
Specification |
| Outside Diameter |
Customized |
| Wall Thickness |
Customized |
| Length |
Fixed Length / Customized |
| Heat Treatment |
According to Standard Requirements |
| Surface Condition |
Customized |
Tube dimensions can be supplied according to equipment design requirements and customer specifications.
Applications
Heat Exchanger Equipment
N08825 seamless tubes are commonly used in:
- Shell and tube heat exchangers
- Condensers
- Industrial cooling systems
Chemical Processing Equipment
Applications include:
- Chemical processing units
- Acid handling equipment
- Process piping systems
Oil and Gas Industry
Used in:
- Offshore equipment
- Refining systems
- Corrosive service environments
Quality Control and Inspection
Inspection procedures may include:
Material Testing
- Chemical composition analysis
- Mechanical property testing
Dimensional Inspection
- Outer diameter measurement
- Wall thickness measurement
- Length verification
Non-Destructive Testing
- Eddy Current Testing (ET)
- Ultrasonic Testing (UT)
- Hydrostatic Testing
Inspection requirements can be adjusted according to project specifications.
Packaging
ASME SB163 N08825 seamless tubes are packaged according to transportation and storage requirements.
Available packaging methods:
- Bundled tubes
- Protective wrapping
- Wooden cases
- Export packaging
Tube marking may include:
- Standard designation
- Material grade
- Size information
- Heat number
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