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ASTM A931-96(2008)

ASTM A931-96(2008)

Standard Test Method for Tension Testing of Wire Ropes and Strand

2010-12-31 /Historical
Superseeded by:
Significance and Use:

Wire rope tests are generally to be performed on new rope. The use of wire rope in any application can reduce individual wire strengths due to abrasion and nicking that will result in the wire rope strength being reduced. Damage to the outer wires will also lower the maximum strength achieved during tension testing.

The modulus of elasticity of wire rope is not considered to be a standard requirement at this time. The determination of this material property requires specialized equipment and techniques.

Rope to be tested should be thoroughly examined to verify that no external wire damage is present. If present, it should be noted. When possible, a new undamaged sample should be obtained for testing.

End attachments and their installation can directly affect breaking strength achieved during testing. Any attachment that can be used to directly achieve the required rope breaking strength can be used. Standard testing with a poured socket, using zinc, white metal or thermoset resin, has been considered the most efficient. Proficiency in attachment of any fitting can have a direct effect on the final test results.


1.1 This test method covers the tension testing of wire ropes and strand at room temperature, specifically to determine the minimum acceptance strength or nominal strength, yield strength, elongation, and modulus of elasticity.

1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 7.3.2, 7.3.4, 7.3.5, and 9.2.

socket; thermo-set resin; wire rope; Socket; Steel wire rope; Tensile properties/testing--steel; Thermosetting resins; Wire rope
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