Tensile strength of steel

The tensile strength of steel refers to the maximum load-bearing capacity of the metal under static tensile conditions, which is the critical value at which the metal transitions from uniform plastic deformation to localized concentrated plastic deformation. It represents the maximum stress that a material can withstand during stretching. If it exceeds this value, the material will break. The symbol of tensile strength is usually Rm, and the unit is MPa (Megapascal).

Different types and types of steel have different tensile strengths. Generally speaking, the tensile strength of ordinary carbon structural steel is between 400-840MPa, the tensile strength of alloy structural steel is between 500-1100MPa, the tensile strength of high-strength alloy steel can reach 800-2000MPa, and the tensile strength of stainless steel The tensile strength is between 530-1310MPa. The tensile strength of low alloy steel is usually between 400-600MPa.

It should be noted that the tensile strength of steel is affected by factors such as material type, grade, heat treatment status, and processing technology. Therefore, specific tensile strength values ​​need to be determined based on the specific steel type and specification.