AWS A.20 : E70 T4 – K2
Tubular open arc cored wire for assembling single and multipass steels C-Mn .
Very high deposition rate welding in horizontal positions or flat.
Metal deposited good resistance to cracking.
The main applications are the assembly of metal structures for buildings , profiles, manufacturing and construction machinery repair .
Also used as an undercoat or reconstitution before hardfacing .