LY-D517

符合

GB /T 984 EDCr-B-15

Description:

LY-D517 is a low hydrogen potassium type hardfacing electrode.DC is applied and the electrode should be contacted reversed polarity.

用途:

It is a kind of generality surface electrode .Compared with LY D512,surfacing layer of LY D517 is harder and has better wear-resistance,so it is hard to process. It is used for hardfacing axles made of carbon steel or low alloy steel,and also suitable for hot steam valves,agitator blades,screw conveyor blades,etc.

ATTENTION:
a.Welding electrodes must be baked for 1 hour at the temperature of 250℃ before welding.
b.Before welding ,the hardfacing weld metal must be cleared impurities away,such as rust,oil,moisture etc.
c.Before welding,the welded pieces should be preheated to the temperature above 300℃ , and corresponding hardness can be obtained with different temperature heat-treatment after welding.


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