* 6: This number indicates that the rod is made of a high-tensile steel alloy.
* 0: This number indicates that the rod is designed for general-purpose welding.
* 2: This number indicates that the rod has a rutile coating.
* 2: This number indicates that the rod has a medium penetration rate.
AWS classification numbers are used to help welders select the right rod for the job. By understanding the meaning of the numbers, welders can be sure that they are using a rod that will produce strong and durable welds.
