| HOT FORMED: | COLD FORMED: |
| Temperature used is above crystallization point | Room temperature is used. |
| Yield strength decrease as temperature increase. | Yield strength increases. |
| Large deformation can be repeated. | Steel has a higher dimensional accuracy. |
| Hardness is lower than that of cold formed. | Increased hardness. |
| Shapes can be drastically altered. | Increase in the elastic limit. |
| Promotes diffusion. | Decrease of ductility. |
| Higher coefficient between rolls. | Coefficient between rolls is lower than with hot formed. |
| Heavy reduction is possible in the area of the work piece. | No possibility of heavy reduction. |
| Not a very good surface finish. | Smooth and oxide free surface finish. |
| Easier to produce in large quantities and to install. | |
| Can produce any shape of any length. |
