Percent Reduction in Area Calculator

The percent reduction in area measures the decrease in cross-sectional area of a tensile specimen at the point of fracture compared to its original cross-sectional area.

It is calculated using the formula: 

where:

  • is the initial cross-sectional area of the specimen (in square meters, m²).
  • is the final cross-sectional area of the specimen at fracture (in square meters, m²).

Both the percent elongation and percent reduction in area are dimensionless quantities expressed as percentages (%), providing a measure of the ductility of a material. Higher percentages indicate greater ductility, while lower percentages suggest lower ductility

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