ASTM B230/B230M-22 PDF

Overview

ASTM B230/B230M-22 is the internationally recognized standard specification for Aluminum 1350–H19 wire for electrical purposes. Developed and published by ASTM International, this standard outlines the essential requirements for extra hard, round, aluminum wire used in electrical applications. The specification sets forth criteria for materials, dimensions, mechanical and electrical properties, joints, and methods of test and inspection. The primary focus is to ensure reliable performance and safety of aluminum electrical conductors, making it vital for manufacturers, suppliers, and end-users in the electrical industry.

Key Topics

• Material Requirements: The standard applies to aluminum 1350–H19, specifying that the wire must be made from appropriate drawing stock and be free of brittleness. Joints may be introduced using permitted welding techniques if agreed upon by the manufacturer and purchaser.
• Mechanical Properties:
  • Tensile Strength and Elongation: The wire must meet precise tensile and elongation requirements to ensure robustness and flexibility, which are quantified in the specification for various wire diameters.
  • Bending (Brittleness) Test: It must withstand coiling or looping around its own diameter, confirming durability without fracturing.
• Electrical Properties:
  • Conductivity and Resistivity: Limits on electrical resistivity at 20°C guarantee the wire’s efficiency in conducting electricity, directly relating to applications in electrical distribution and transmission.
• Dimensional Standards: Tolerances for diameter are clearly specified in both inch-pound and SI units, emphasizing the need for manufacturing precision.
• Inspection and Testing: Procedures for sampling, testing tensile and electrical properties, and acceptance criteria are established to maintain consistent product quality.
• Marking and Packaging: Requirements for packaging, size, package marking, and protection during shipment provide additional assurance to buyers and handlers.

Applications

Aluminum 1350–H19 wire is widely used as an electrical conductor in various sectors due to its high conductivity, lightweight properties, and cost-effectiveness. Typical applications include:

• Overhead electrical transmission and distribution lines
• Busbars and transformer winding
• Underground electrical cable manufacturing
• Electrical wiring for industrial and commercial installations

The specification's detailed criteria ensure the wire's suitability for demanding environments, such as utility grids and infrastructure projects, where electrical reliability and mechanical strength are paramount.

Related Standards

ASTM B230/B230M-22 references several other key standards to provide comprehensive coverage of all relevant technical requirements:

• ASTM B233: Aluminum 1350 Drawing Stock for Electrical Purposes
• ASTM B193: Test Method for Resistivity of Electrical Conductor Materials
• ASTM B354: Terminology Relating to Uninsulated Metallic Electrical Conductors
• ASTM B557/B557M: Test Methods for Tension Testing of Aluminum- and Magnesium-Alloy Products
• ASTM B830: Specification for Uniform Test Methods and Frequency
• ANSI H35.1/H35.1M: Alloy and Temper Designation Systems for Aluminum
• E527: Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

These related documents support the technical requirements for materials, test methods, terminology, and product identification, ensuring consistency and international compatibility in aluminum electrical conductor production and usage.

Keywords: ASTM B230, B230M, Aluminum 1350 wire, H19 temper, electrical conductor, aluminum wire, electrical resistivity, tensile strength, aluminum conductor standards, electrical wiring aluminum, ASTM electrical standards.