By rowanjenkins | Last updated 1st May 2024

ASTM B9 Standard Specification for Bronze Trolley Wire

Bronze trolley wire with round, grooved, and figure-9 deep-section grooves are covered by ASTM B9. Based on their rising conductivities, the three different alloys listed can be used to make the bronze trolley wire: Aluminium Alloys 40, 55, and 80. It is accepted practice to use the numbers expressed in inch-pound units as the standard. The inch-pound units' metric equivalents listed in this standard might not be exact.

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    Introduction to ASTM B9

    ASTM covers bronze trolley wire, including round, grooved, and figure-9 deep-section grooves. Bronze trolley wire can be made from any of the three specified alloys: aluminum alloys 40, 55, and 80. This is due to their increasing conductivities. It is customary to use the values stated in inch-pound units as the benchmark. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM B9 tests for our clients.

    ASTM B9 Test Method

    Tension TestRepresentative samples are used to conduct tension tests.
    The permanent length increase resulting from the wire breaking under tension is known as elongation, and it is measured between gage marks that were initially spaced 10 inches (254 mm) apart on the test specimen. 
    Twit TestSpecimens measuring 10 in (254 mm) in length are put through three twist tests in between the testing machine’s holds. The twisting machine’s design allows the tail stock to move linearly about the head. Applying the twist takes no more than ten spins each minute.

    ASTM B9 Test Specimens

    Specimen DetailThe form of wire is genuinely cylindrical. The diameter cannot deviate from the specification by more than 61%.
    Specimen SizeThe diameter of a round trolley wire, given in decimal fractions of an inch to the nearest 0.1 mils (0.0001 in.) (0.0025 mm), is the measurement used to determine its size.

    ASTM B9 Test Result

    In summary, the composition, dimensions, and production requirements of bronze trolley wire are all specified in ASTM B9, which offers comprehensive guidelines. When these requirements are followed, bronze trolley wires are guaranteed to be of high quality, dependable, and performing, enabling their efficient use in a variety of electrical transmission and distribution applications.

    ASTM B9 Related Tests

    ASTM B9 is related to tests including ASTM B16 for brass rods, bars, and forms that are free-cutting for use in screw machines and ASTM B22 for bronze turntables and bridge castings.

    FAQ's

    Where can I get the astm b9 tested?

    You can share your astm b9 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 b9 test to various testing techniques.

    How much do I need to pay for the astm b9 test?

    Please contact us for a detailed quote for your astm b9 testing needs. Cost incurred to carry out different astm b9 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 b9?

    The required number of samples or specimens should comply with the procedure given in the astm b9 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 b9 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 b9 test?

    The turnaround time for astm b9 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 b9 tested?

    You can share your astm b9 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 b9 test to various testing techniques.

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