RS TENSILE PVT IN DELHI Tensile strength can be defined as the maximum stress that a material can bear before breaking when it is allowed to be stretched or pulled. Tensile refers to a type of external physical force applied to a material in a pulling direction away from its surface. Tensile typically refers to tensile strength or tensile stress. The tensile strength of a material is the maximum stress that can be applied to it before it breaks. The tensile strength of aluminum alloys can be increased by special treatments. Because of their high tensile strength, these products are suitable for boring in drilling machines.