MaTestLab > Test Standards > ASTM B49 Standard Specification for Copper Rod for Electrical Purposes
ASTM B49 Standard Specification for Copper Rod for Electrical Purposes
The specification specifies copper rods with diameters ranging from 1/4 to 13/8 inches, made from high conductivity coppers like electrolytic tough-pitch, oxygen-free, or fire-refined coppers. These rods are suitable for the fabrication of electrical conductors. Copper of special qualities, forms, or types are also specified using the ASTM B49 standard specification. The values stated in inch-pound units are to be regarded as standard in ASTM B49 specification.
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Introduction to ASTM B49
ASTM B49 guarantees that copper rods satisfy the necessary performance and quality standards, enhancing electrical systems’ safety and effectiveness. It offers manufacturers and users a trustworthy resource for creating and choosing the best copper rods by covering topics including chemical composition, physical qualities, dimensions, and tolerances. The dependability and durability of electrical systems and components are ensured by compliance with the ASTM B49 standard.
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ASTM B49 Test Procedure
Specimen Selection
Representative samples of copper rods are obtained and randomly selected to accurately represent the batch or production lot. The specimens are ensured to be free from visible defects or damage to ensure accurate test results.
Test Setup and Execution
Tests are conducted in testing labs to ensure the strength, elongation, and resistivity of a copper rod. The maximum force, deformation, and electrical resistance of the rod are measured through these tests. The percentages of elements present are determined through chemical composition analysis, while compliance is verified for dimensions and tolerances. The rod’s internal structure is examined under a microscope through microstructure analysis.
ASTM B49 Test Specimens
Specimen Details
The specimen is a representative portion of a copper rod used for tests and evaluations, chosen to represent the entire batch or production lot. It is prepared in a specific manner to ensure consistency and accuracy during testing. The specimen should have the following chemical composition: tellurium, selenium, bismuth, antimony, arsenic, tin, lead, iron, nickel, sulfur, silver, oxygen, cadmium, phosphorus, zinc, and manganese.
Specimen Dimensions
Tensile strength test specimens are cylindrical or rectangular, while elongation tests are dog-bone-shaped with narrow regions for grip attachment. Specimen dimensions vary from 1/4 in. to 13/8 in. (6.4 mm to 35 mm) produced from high conductivity copper specimens. Resistivity test specimens are cylindrical or rectangular, and chemical composition analysis uses small chips or shavings from copper rods. Microstructure analysis involves preparing thin slices for easy examination under a microscope.
ASTM B49 Test Results
The tensile strength and elongation tests assess a copper rod’s strength, deformation, and suitability for electrical applications. Chemical composition analysis ensures compliance, dimension and tolerance verification verify compliance, and microstructure analysis examines the rod’s internal structure for defects, impurities, or irregularities affecting performance.
Tests Related to ASTM B49
Important tests relevant to ASTM B49 include ASTM B5 (Specification for High Conductivity Tough-Pitch Copper Refinery Shapes), ASTM B115 (Specification for Electrolytic Copper Cathode), and ASTM B193 (Test Method for Resistivity of Electrical Conductor Materials).
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How much do I need to pay for the astm b49 test?
Please contact us for a detailed quote for your astm b49 testing needs. Cost incurred to carry out different astm b49 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm b49?
The required number of samples or specimens should comply with the procedure given in the astm b49 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm b49 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm b49 test?
The turnaround time for astm b49 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm b49 tested?
You can share your astm b49 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm b49 test to various testing techniques.
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