Material properties calculator

Ductility Calculator

Evaluate deformation before fracture from original and final dimensions.

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Calculator

Enter material values

Select units beside each input. Results update automatically as soon as enough values are entered.

Materials

Original gauge length m
Final gauge length m
Original area m2
Final area m2

Result

About this calculator

How it works

Ductility measures how much a material plastically deforms before fracture, commonly reported as percent elongation or reduction of area.

Formulas

Formulas used

Percent elongation

%EL = (Lf - L0) / L0 x 100

Reduction of area

%RA = (A0 - Af) / A0 x 100

Worked example

Example calculation

Percent elongation

%EL = (62 - 50) / 50 x 100 = 24%

Guide

How to use this calculator

Enter the measured material, load, geometry, strain, or thermal values requested by the calculator.
Select the units beside each input where a unit menu is shown.
Use the highlighted result for the main property, then review the supporting values for context.

Reference

What the results mean

Percent elongation

Length increase after fracture relative to original gauge length.

Reduction of area

Necking severity based on cross-sectional area loss.

Assumptions and limits

Before using the result

Inputs are treated as representative engineering values from a test, datasheet, or early design estimate.
Material properties vary with grade, heat treatment, temperature, strain rate, moisture, manufacturing route, and test method.
Use verified material data, applicable standards, safety factors, and qualified engineering judgement for final design or failure analysis.

FAQ