ASTM B467-14(2022) PDF

Overview

ASTM B467-14(2022) is the authoritative international standard specifying requirements for welded copper-nickel alloy pipes, primarily using Copper Alloy UNS Nos. C70600 (90-10), C70620, C71500 (70-30), and C71520. Developed under the guidance of ASTM International, this specification ensures the consistent production of copper-nickel welded pipes for general engineering applications by defining manufacturing, mechanical, chemical, and testing criteria. The standard aligns with internationally recognized principles and is vital for manufacturers, engineers, and quality assurance professionals seeking reliable, corrosion-resistant piping solutions.

Key Topics

• Material Grades Covered
  • C70600 and C70620: 90-10 copper-nickel alloys (standard/modified)
  • C71500 and C71520: 70-30 copper-nickel alloys (standard/modified)
• Manufacturing Tempers
  • As-welded from annealed or cold-worked material
  • Welded and annealed
  • Welded, cold drawn, and stress-relieved
  • Fully finished (annealed, drawn, and stress-relieved)
• Dimensional and Physical Requirements
  • Outside diameter, wall thickness, length, roundness, and squareness of cut
• Mechanical Properties
  • Tensile strength, yield strength, and elongation
• Chemical Composition
  • Strictly controlled according to copper-nickel alloy requirements
• Testing Procedures
  • Radiographic, eddy-current, and hydrostatic (as applicable)
  • Expansion, flattening, and tension tests

Applications

Welded copper-nickel pipe manufactured under ASTM B467 is trusted in a range of demanding engineering environments, with advantages that include corrosion resistance, durability, and ease of fabrication. Common applications include:

• Marine Engineering: Used for seawater piping, condenser tubes, and heat exchangers due to outstanding resistance to seawater corrosion.
• Power Generation: Suitable for cooling systems and heat exchangers.
• Offshore and Oil & Gas: Ideal for firewater systems, process piping, and safety-critical infrastructure where resistance to biofouling and corrosion is paramount.
• Desalination Plants: Used in brine and water handling systems.
• General Industrial: Employed in chemical plants, food processing, and other industries where high reliability and corrosion resistance are required.

The standard ensures the pipe’s suitability for welding and pressure applications, meeting the stringent demands of ASME Boiler and Pressure Vessel Code when required.

Related Standards

ASTM B467 references and is supported by several other industry standards, enhancing robust quality assurance and compliance:

• ASTM B601: Classification for temper designations for copper and copper alloys.
• ASTM E8/E8M: Test methods for tension testing of metallic materials.
• ASTM E29: Practice for using significant digits in test data.
• ASTM E243: Practices for eddy-current examination.
• ASME Boiler and Pressure Vessel Code: For application in pressure systems.
• AWS A5.6/A5.6M & AWS A5.7/A5.7M: Specifications for copper and copper-alloy welding electrodes and bare rods.

Further, the document aligns with global standardization principles in accordance with the World Trade Organization’s TBT Committee, making it a recognized reference for international procurement and project specification.

Keywords: ASTM B467, welded copper-nickel pipe, copper-nickel alloys, C70600, C71500, pipe specification, marine piping, industrial piping standards, corrosion-resistant pipe, eddy-current test, hydrostatic test, copper alloy pipe standard.