The carbon equivalent number for carbon steel indicates the 'weldability' of the steel. The table below shows relative weldability for various CE values:
Carbon Equivalent |
Weldability |
up to 0.35 |
Excellent |
0.35 to 0.40 |
Very Good |
0.41 to 0.45 |
Good |
0.46 to 0.50 |
Fair |
over 0.50 |
Poor |