E312-16

E312-16

AWS A5.4 E312-16

Characteristics and Applications:
The weld metal of E312 is a stainless steel which contains more quantities of ferrite than E 309/309L.Crack resistance is good. It is excellent for the welding of dissimilar metals, cladding steel and steels with highharden ability. Due to higher contains of ferrite，E 312 is low sensitive to cracking and especially suitable forwelding dissimilar metals, hardening alloy steel and metals with poor weldability or easy to cause porosity.However, High temperature should be avoided for not to cause cracks resulted from embritlement effect ofsecond phase.
Notes on usage:
1.Clean up the contaminations on the base metal, groove and pass to pass with stainless steel brush.
2.Maintaining short arc length as possible is highly recommended. While welding with weave method, movingrange should be controlled within 2.5 times of the wire's dia.
3.Dry the electrodes at 250~300℃ for 60 minutes before use. Take out consumables for half dayconsumption and keep in the environment at 100~150℃ during welding process.
4.Use lower current to prevent from crack and minimize base metal dilution.