Plastic, Rubber and Composites

Tensile Properties of Plastics

by Galdabini S.p.A.

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ASTM D638, ISO 527-1, ISO 527-2, JIS K7113 ASTM D638 method is used to determine tensile properties of plastics The most significant properties are: tensile strength, strain at rupture and yield modulus, for quality control and mechanical specifications. Generally, samples are: rigid, semi-rigid, and non-rigid plastics in the form of dumbbell, rod, or tubular specimen types. Testing goals to this Standard are: repeatable strain measurement, where an extensometer is required by Standard to accurately measure strain (measure modulus, strain to failure) and the operator is assisted in working safe gripping of different specimens, mechanical wedge grips or pneumatic side-acting grips with serrated faces are suitable for most rigid and semi-rigid plastics reporting calculations according to ASTM Standard.Our software Labtest has pre-built methods available with pre-configured plastic specific calculations helping to ensure compliance For labs with a high volume testing, we offer both robotic, 6-axis or 3-axis automated testing solutions. It is important to revise ASTM D638 in order to fully understand the test setup, procedure, and results requirements