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Carbon Equivalent Calculator

Chemistry
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Calculates the carbon equivalent (CE) of steel, which indicates its weldability and other properties based on its chemical composition.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Carbon (C) Percentage (%), Manganese (Mn) Percentage (%), Chromium (Cr) Percentage (%), Molybdenum (Mo) Percentage (%), Vanadium (V) Percentage (%), and Nickel (Ni) Percentage (%) in the units shown.

Step 2

Read Carbon Equivalent (CE) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Mild Steel

Carbon (C) Percentage (%): 0.2 %; Manganese (Mn) Percentage (%): 0.7 %; Chromium (Cr) Percentage (%): 0.2 %; Molybdenum (Mo) Percentage (%): 0.1 %; Vanadium (V) Percentage (%): 0.05 %; Nickel (Ni) Percentage (%): 0.2 %

Carbon Equivalent (CE): 0.4

High-Strength Low-Alloy Steel

Carbon (C) Percentage (%): 0.15 %; Manganese (Mn) Percentage (%): 1.2 %; Chromium (Cr) Percentage (%): 0.8 %; Molybdenum (Mo) Percentage (%): 0.3 %; Vanadium (V) Percentage (%): 0.1 %; Nickel (Ni) Percentage (%): 0.5 %

Carbon Equivalent (CE): 0.6233333333

Low-Carbon Steel

Carbon (C) Percentage (%): 0.1 %; Manganese (Mn) Percentage (%): 0.5 %; Chromium (Cr) Percentage (%): 0.1 %; Molybdenum (Mo) Percentage (%): 0.05 %; Vanadium (V) Percentage (%): 0.02 %; Nickel (Ni) Percentage (%): 0.1 %

Carbon Equivalent (CE): 0.224

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