ASTM D638 is used to test the tensile properties of plastic materials, primarily measuring:

Test Parameters

• Tensile Strength – The maximum force a material can withstand under tension.
• Elongation at Break – The maximum extension ratio before rupture.
• Elastic Modulus – The material’s stiffness under tensile conditions.

Applications

Engineering Plastics – Used for testing electronic device housings and structural components.
Packaging Materials – Ensures the durability and flexibility of films and containers.