Kuangtai KN-816C2 description:
Applications and Features:
( 1 ) It is suitable for welding 540N/mm2 grade steel for low temperature resistance.
( 2 ) Superior weldability, stable arc and good slag removal.
( 3 ) Weld metal contains 3%Ni-0.25%Mo and good impact properties at -60C.
( 4 ) Ideal for welding in LNG storage tanks or 3.5%Ni steel for low temperature resistance.
Welding Instruction:
( 1 ) Clean up the contaminations on the steel.
( 2 ) Dry the electrodes at 350~400C for 60 minutes before welding.
( 3 ) Keep arc as short as possible. Take the back-step method to prevent porosity at arc start and re-start.
( 4 ) High heat input will lower the impact value. Please carefully select welding current.
( 5 ) The preheat temperature for thick plate is 50~100C.