What is ASTM B167?

ASTM B167 (ASME SB167) is the standard specification for seamless pipe and tube made from specified nickel-chromium-aluminum, nickel-chromium-iron, nickel-chromium-cobalt-molybdenum, nickel-iron-chromium-tungsten and nickel-chromium-molybdenum-copper alloys. The specification covers seamless products in cold-worked annealed, hot-worked annealed and hot-finished conditions for general corrosion-resistant and heat-resistant applications.

ASTM B167 covers specific alloy compositions identified by UNS designation rather than serving as a general specification for all nickel alloys. ASTM B167-23 includes nickel-chromium-aluminum alloy UNS N06699; nickel-chromium-iron alloys UNS N06600, N06601, N06603, N06690, N06693, N06025, N06045 and N06696; nickel-chromium-cobalt-molybdenum alloy UNS N06617; nickel-iron-chromium-tungsten alloy UNS N06674; and nickel-chromium-molybdenum-copper alloy UNS N06235.

ASTM B167 Seamless Nickel Alloy Pipes and Tubes are used in applications requiring resistance to corrosion and elevated temperatures. Typical industries include chemical processing, petrochemical, power generation, heat treatment, pollution control and other demanding industrial services. Kamal Steels supplies ASTM B167 seamless pipes and tubes in applicable grades, sizes, wall thicknesses and lengths, with Mill Test Certificates (EN 10204 3.1), inspection documentation and third-party inspection available according to project requirements.

ASTM B167 covers seamless nickel alloy pipes and tubes designed to withstand severe operating conditions including high temperatures, corrosive chemicals, seawater exposure and extreme pressure environments. These products are manufactured according to strict quality requirements to ensure reliable industrial performance.

ASTM B167 covers seamless pipe and tube manufactured from specific nickel-based alloys. The grades are identified by their alloy designation and UNS number. The following table lists the applicable ASTM B167 alloy designations presented with commonly recognized commercial names where applicable.

Note: ASTM B167 applies only to the alloy compositions and product requirements covered by the applicable edition of the specification. Alloy names such as Inconel are commonly used commercial or trademarked designations; the UNS designation should be used to identify the material precisely.

The chemical composition of ASTM B167 seamless nickel alloy pipes and tubes varies according to the specific alloy grade. The table below summarizes selected principal alloying elements of commonly supplied ASTM B167 grades and is provided for general reference.

Note: The values shown above represent selected principal alloying elements for reference and do not constitute the complete chemical composition requirements of ASTM B167. The applicable ASTM B167 specification and material grade should be consulted for complete limits covering all required elements.

ASTM B167 seamless nickel alloy pipes and tubes are required to meet specified mechanical property requirements based on the applicable alloy, product form and condition. Tensile strength, yield strength and elongation requirements can vary between alloy grades and product conditions.

Note: Mechanical property requirements depend on the specific ASTM B167 alloy, product form, dimensions and required condition. Values should be verified against the applicable ASTM B167 edition and the material test certificate before being used for engineering or purchasing purposes. A dash (—) indicates that a value has not been included in this simplified reference table.

Note: The equivalent grade information is provided for reference only. Material selection should always be based on the applicable ASTM specification, project requirements, and service conditions.

ASTM B167 seamless pipes and tubes are available in a range of outside diameters, wall thicknesses and lengths depending on the alloy grade, product form and customer requirements. The following table shows commonly supplied pipe dimensions for reference. Tube dimensions may be specified separately according to outside diameter, inside diameter or wall thickness.

Note: The NPS and outside diameters shown above are commonly used pipe dimensions for reference and do not represent a complete ASTM B167 dimensional table. Wall thickness, schedule, diameter, length and other dimensions are supplied according to the applicable product requirements, alloy grade, dimensional standard and customer specifications.

Note: Testing and inspection requirements may vary according to the ASTM B167 alloy grade, product form, dimensions, specified condition and purchase order. Additional inspection and testing can be arranged where required for specific projects.

1. What is ASTM B167? 2. What materials are covered under ASTM B167? 3. What is ASTM B167 used for? 4. What is the difference between ASTM B167 and ASTM A312? 5. Are ASTM B167 pipes suitable for high-temperature applications? 6. What sizes are available in ASTM B167 pipes and tubes? 7. What are the advantages of ASTM B167 nickel alloy pipes? 8. Which industries commonly use ASTM B167 tubes? Request Latest Price