Technical Glossary Tensile Strength

[Tensile Strength]

Tensile strength is the mechanical strength as determined with force needed prior to breaking when a rubber material is stretched. Test methods conform to JIS K 6251 and a test piece is stretched by a load at a fixed speed. The force required for it to break is divided by the cross-sectional area, which yields the breaking stress. Test methods are with a dumbbell-shaped test piece or a ring-shaped test piece; our firm uses a test with a dumbbell-shaped test piece. The tensile strength is indicated by the following equation: