Identifying Metals
In maintenance welding, it is very important to accurately identify base metals in order to minimize downtime and have confidence of a strong, high quality weld every time.
For example, the carbon content of steel must be determined as those containing over 0.25% carbon will require special considerations when welding. The higher the carbon content, the higher the probability is that the weld will be sensitive to hot-cracking and hardening, resulting in poor ductility. This is why it is so important to use high quality welding rods.
File Test
Chipping Test
Color Test
