Free Tensile Strength Calculator

Calculate the ultimate tensile strength of a material from the maximum load and original cross-sectional area.

N
mm²

Ultimate Tensile Strength

572.96 MPa

Ultimate Tensile Strength83.10 ksi

Ultimate Tensile Strength vs Maximum Load (F)

Ultimate Tensile Strength

The ultimate tensile strength (UTS) is the maximum engineering stress a material can sustain before fracture in a standard tension test.

Formula

UTS = F_max / A_0

where F_max is the peak load recorded during the tensile test and A_0 is the original cross-sectional area of the specimen. This is an engineering stress (based on original area), not true stress.

Example Calculation

A 10 mm diameter steel rod fails at 45 kN.

  1. 01Area of 10 mm diameter rod = pi × 5² = 78.54 mm²
  2. 02UTS = 45000 / 78.54 = 572.9 MPa
  3. 03In ksi: 572.9 × 0.145 = 83.1 ksi

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