ASTM B163-22 PDF

Overview

ASTM B163-22 is the standard specification developed by ASTM International for seamless nickel and nickel alloy condenser and heat-exchanger tubes. These tubes are specifically designed for use in heat exchanger and condenser service, where high corrosion resistance, material reliability, and thermal efficiency are paramount. Covering a wide range of nickel and nickel alloy grades, this standard sets out the requirements for dimensions, chemical composition, mechanical properties, and test methods to ensure consistent product quality in demanding industrial environments such as power generation, chemical processing, and petrochemical industries.

Key Topics

• Material Scope and Alloy Grades

  • Covers seamless tubes with outside diameters up to 3 inches (76.2 mm), and wall thicknesses up to 0.165 inches (4.19 mm) average, or 0.148 inches (3.76 mm) minimum.
  • Applicable to various nickel grades and nickel-based alloys, including but not limited to UNS N02200, N02201, N04400, N06600, N08800, N08935, and others.

• Dimensional and Mechanical Requirements

  • Tubes must conform to specified limits for outside diameter and wall thickness, with clear guidance on permissible variations and tolerances.
  • Mechanical properties such as tensile strength, yield strength, elongation, and Rockwell hardness are detailed for each alloy and condition (annealed, stress-relieved, cold-worked).

• Chemical Composition

  • Strict guidelines for elements such as nickel, copper, chromium, iron, molybdenum, silicon, manganese, carbon, and others based on specific alloy requirements.
  • Analytical testing methods to verify conformance with composition limits as stipulated.

• Testing and Inspection

  • Mandatory hydrostatic or nondestructive electric testing for each tube to ensure integrity against leaks and material failures.
  • Additional testing methods specified for mechanical properties, flare, and grain size in alignment with referenced ASTM standards.

• Ordering and Certification

  • Clear instructions for ordering, including details on alloy, condition, finish, dimensions, and supplementary requirements such as certification or special inspections.
  • Bundles or shipping containers must be marked for traceability, including alloy, specification number, and other key data.

Applications

• Heat Exchangers and Condensers: Used widely in industries that require efficient heat transfer with exposure to corrosive fluids, such as power plants, refineries, and chemical processing facilities.

• Chemical and Petrochemical Processing: Nickel and nickel alloy tubes specified under ASTM B163-22 provide excellent corrosion resistance in environments with acids, alkalis, or high temperatures.

• Desalination Plants: Due to outstanding resistance to seawater corrosion, these seamless tubes are ideal for condenser tubing in desalination systems.

• Nuclear and Fossil Fuel Power Generation: The high strength and durability characteristics make them suitable for both nuclear reactor heat exchangers and conventional boilers.

• Custom Fabrication: Supports specialized shapes such as U-bent tubes for compact heat exchanger designs and custom coil configurations.

Related Standards

• ASTM B829: General requirements for nickel and nickel alloy seamless pipe and tube, referenced for additional technical guidance.
• ASTM E8/E8M: Methods for tensile testing of metallic materials.
• ASTM E18: Methods for determining Rockwell hardness of metals.
• ASTM B880: Check analysis limits for nickel, nickel alloys, and cobalt alloys.
• ASME SB-163: The ASME equivalent for applications involving boilers and pressure vessels.
• ASTM E112 & E140: Test methods and conversion tables for grain size and hardness, crucial for qualifying tube performance.

By adhering to the requirements of ASTM B163-22, manufacturers, specifiers, and purchasers can ensure seamless nickel and nickel alloy tubing will meet essential quality, performance, and safety standards for condenser and heat-exchanger service. This specification is vital for industries demanding reliable heat transfer and corrosion-resistant materials.