Kuangtai KL-718A1 description:
Applications and Features:
( 1 ) KL-718A1 is suitable for welding 490N/mm2 grade steel with 0.5% Mo.
( 2 ) High deposition rate and good weldability.
( 3 ) Ideal for the welding of high temperature/pressure steel pipes, heat exchanger steel pipes, rolled steel and forged steel.
Welding Position:
All positions.
Welding Instruction :
Clean up the contaminations on the steel.
Dry the electrodes at 350~400C for 60 minutes before welding.
Keep arc as short as possible. Take the back-step method to prevent porosity at arc start and re-start.
Preheat and interpass temperature: 100~200C, PWHT: 600~635C.