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ASTM B163 Nickel Alloy Tube Specification
What is ASTM B163?
ASTM B163 (ASME SB163) is the standard specification for seamless nickel and nickel alloy condenser and heat exchanger tubes intended for corrosive high-temperature and heat transfer applications. The specification defines the manufacturing process chemical composition mechanical properties dimensions heat treatment testing and inspection requirements to ensure consistent quality excellent corrosion resistance and long service life.
ASTM B163 covers seamless tubes manufactured from a wide range of nickel and nickel alloy grades including Alloy 200 Alloy 201 Alloy 400 Alloy 600 Alloy 625 Alloy 800 Alloy 800H Alloy 800HT and other specified alloys depending on the application. These tubes provide excellent resistance to corrosion oxidation thermal stress and aggressive process media making them suitable for demanding industrial environments.
ASTM B163 seamless nickel alloy tubes are widely used in condensers heat exchangers power generation petrochemical chemical processing marine offshore pharmaceutical and desalination industries. Kamal Steels supplies ASTM B163 tubes in various nickel alloy grades sizes wall thicknesses and lengths with Mill Test Certificates (EN 10204 3.1) third-party inspection and customized project requirements for domestic and international applications.
ASTM B163 Nickel Alloy Tube Specification
ASTM B163 covers seamless nickel and nickel alloy tubes intended primarily for condenser and heat exchanger service. The specification is widely accepted across global industries due to its strict quality requirements and proven performance in corrosive and elevated-temperature operating conditions.
These tubes are manufactured through seamless processes to eliminate weld joints and improve structural integrity. The seamless construction provides enhanced pressure handling capability, reduced leakage risk and superior corrosion resistance compared to welded alternatives.
| Specification | Details |
|---|---|
| Standard | ASTM B163 / ASME SB163 |
| Product Type | Seamless Nickel Alloy Tubes |
| Application | Condensers, Heat Exchangers & Process Equipment |
| Outside Diameter | 6.0 mm to 101.6 mm |
| Wall Thickness | 0.5 mm to 12.7 mm |
| Length | Random Length, Fixed Length & Custom Length |
| End Type | Plain End |
| Certification | Mill Test Certificate (MTC) / EN 10204 3.1 |
ASTM B163 Tube Grades
ASTM B163 seamless nickel alloy tubes are available in several grades to meet different corrosion, temperature, and process requirements. The most commonly supplied grades are shown below.
| Grade | Typical Features & Applications |
|---|---|
| Nickel 200 (UNS N02200) | Commercially pure nickel offering excellent corrosion resistance and high thermal conductivity for heat exchangers and condensers. |
| Nickel 201 (UNS N02201) | Low-carbon nickel grade designed for elevated-temperature service and resistance to graphitization. |
| Monel 400 (UNS N04400) | Nickel-copper alloy with excellent resistance to seawater, marine environments, and many chemical processing applications. |
| Inconel 600 (UNS N06600)* | Nickel-chromium alloy providing outstanding oxidation resistance and high-temperature strength for specialized heat transfer equipment. |
*Note: Inconel 600 is included only where project specifications require nickel-chromium alloy tubes. The primary ASTM B163 grades commonly supplied are Nickel 200, Nickel 201, and Monel 400.
Types of ASTM B163 Tubes
| Tube Type | Description / Application |
|---|---|
| Seamless Nickel Tubes | Manufactured without a welded seam for high-pressure and high-temperature applications. |
| Heat Exchanger Tubes | Designed for efficient heat transfer in condensers, boilers, and heat exchangers. |
| Condenser Tubes | Used in power plants and industrial condensers requiring excellent corrosion resistance. |
| U-Bend Tubes | Supplied for heat exchanger systems where compact tube layouts are required. |
| Straight Length Tubes | Available in standard and custom lengths for industrial process piping systems. |
| Custom Cut Length Tubes | Precision-cut tubes supplied according to customer specifications. |
ASTM B163 Chemical Composition
The chemical composition of ASTM B163 seamless nickel alloy tubes varies by grade. Nickel 200 and Nickel 201 are the most commonly supplied materials under this specification, offering excellent corrosion resistance, high thermal conductivity, and outstanding performance in heat exchanger and condenser applications.
| Element | Nickel 200 (%) | Nickel 201 (%) |
|---|---|---|
| Nickel (Ni) | 99.0 Min | 99.0 Min |
| Carbon (C) | 0.15 Max | 0.02 Max |
| Manganese (Mn) | 0.35 Max | 0.35 Max |
| Iron (Fe) | 0.40 Max | 0.40 Max |
| Silicon (Si) | 0.35 Max | 0.35 Max |
| Copper (Cu) | 0.25 Max | 0.25 Max |
ASTM B163 Mechanical Properties
ASTM B163 seamless tubes are manufactured to meet minimum mechanical property requirements for Nickel 200 and Nickel 201, ensuring reliable performance in high-temperature and corrosive service environments.
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| Nickel 200 | 380 Min | 105 Min | 40 Min |
| Nickel 201 | 345 Min | 80 Min | 40 Min |
ASTM B163 Equivalent Grades
The following equivalent designations are commonly used for ASTM B163 nickel grades to support international engineering specifications and material identification.
| Material | UNS Number | Werkstoff No. |
|---|---|---|
| Nickel 200 | N02200 | 2.4066 |
| Nickel 201 | N02201 | 2.4068 |
ASTM B163 Tube Size Chart
ASTM B163 tubes are manufactured in a wide range of outside diameters and wall thicknesses to meet the requirements of heat exchangers, condensers, boilers, power plants, and chemical processing equipment. Custom sizes are also available upon request.
| Outside Diameter (OD) | Wall Thickness (WT) | Standard Length | Tube Form |
|---|---|---|---|
| 6.35 mm (1/4") | 0.71 – 2.11 mm | Up to 12 m | Straight |
| 9.53 mm (3/8") | 0.71 – 2.77 mm | Up to 12 m | Straight |
| 12.70 mm (1/2") | 0.71 – 3.05 mm | Up to 12 m | Straight |
| 15.88 mm (5/8") | 0.89 – 3.40 mm | Up to 12 m | Straight |
| 19.05 mm (3/4") | 1.00 – 3.76 mm | Up to 12 m | Straight |
| 25.40 mm (1") | 1.24 – 4.78 mm | Up to 12 m | Straight |
| 31.75 mm (1-1/4") | 1.65 – 4.78 mm | Up to 12 m | Straight |
| 38.10 mm (1-1/2") | 1.65 – 4.78 mm | Up to 12 m | Straight |
| 50.80 mm (2") | 2.11 – 6.35 mm | Up to 12 m | Straight |
Available Lengths: Single Random, Double Random, Fixed Cut Length and Custom Lengths.
Finish: Annealed, Pickled, Bright Annealed (BA), Polished.
Manufacturing Type: Seamless Cold Drawn Tubes.
Note: Other tube sizes, wall thicknesses and custom dimensions are available as per customer specifications.
Heat Treatment and Testing
| Inspection / Test | Description |
|---|---|
| Heat Treatment | Tubes are solution annealed as required by ASTM B163. |
| Hydrostatic Test | Verifies pressure integrity of each tube. |
| Eddy Current Test | Non-destructive testing to detect surface and internal defects. |
| Dimensional Inspection | Checks OD, wall thickness, length and straightness. |
| PMI Testing | Positive Material Identification available on request. |
| Mill Test Certificate | EN 10204 3.1 certification supplied with material. |
| Third-Party Inspection | SGS, BV, TUV, DNV and other agencies available on request. |
ASTM B163 Applications
| Industry | Application |
|---|---|
| Heat Exchangers | Heat transfer equipment and condensers. |
| Power Plants | Boilers and condenser tubing systems. |
| Chemical Processing | Corrosion-resistant process tubing. |
| Petrochemical Industry | High-temperature process equipment. |
| Marine Industry | Seawater handling and offshore equipment. |
| Oil & Gas | Heat recovery and process tubing. |
| Food Processing | Sanitary heat exchanger systems. |
| Pharmaceutical Industry | Clean process and utility systems. |
Advantages of ASTM B163 Tubes
| Advantage | Benefit |
|---|---|
| Excellent Corrosion Resistance | Suitable for aggressive chemical and marine environments. |
| High Temperature Performance | Maintains strength at elevated temperatures. |
| Seamless Construction | Improves reliability in high-pressure applications. |
| Excellent Heat Transfer | Ideal for condensers and heat exchangers. |
| Long Service Life | Reduces maintenance and replacement costs. |
| High Quality Standards | Supplied with MTC and inspection certificates. |
Frequently Asked Questions
ASTM B163 is a standard specification for seamless nickel and nickel alloy condenser and heat exchanger tubes used in corrosive and high-temperature applications.
ASTM B163 Tubes are primarily used in heat exchangers, condensers, power plants, chemical processing facilities, marine systems and offshore applications where corrosion resistance and efficient heat transfer are required.
ASTM B163 commonly covers Nickel 200 (UNS N02200), Nickel 201 (UNS N02201) and other nickel alloy grades used for seamless condenser and heat exchanger tubing.
Nickel 201 has a lower carbon content than Nickel 200, making it more suitable for elevated-temperature applications where graphitization resistance is important.
ASTM B163 covers seamless nickel and nickel alloy tubes. The seamless construction provides improved strength, reliability and corrosion resistance compared to welded alternatives.
ASTM B163 Tubes are available in a wide range of outside diameters, wall thicknesses and custom lengths to meet the requirements of condensers, heat exchangers and process equipment.
Yes, ASTM B163 Tubes can be supplied with Mill Test Certificates (MTC), EN 10204 3.1 certification and third-party inspection reports upon request.
Kamal Steels is a trusted ASTM B163 Tube Supplier and Exporter in India offering ready stock, competitive pricing, quality certifications, export documentation and fast worldwide delivery.