D638

ASTM D638 is a standardized testing method used to measure the tensile properties of plastics. It involves pulling a standardized plastic sample until it stretches and eventually breaks, allowing engineers to determine key characteristics such as strength, elasticity, and how much it can stretch before failure. This information helps in evaluating whether a plastic material is suitable for specific applications, ensuring safety, durability, and performance. The test is essential for manufacturers and designers to select the right plastics for products like automotive parts, packaging, and medical devices.