PRODUCT TYPE : A SUPER LOW HYDROGEN ELECTRODE FOR STRUCTURAL STEELS
DESCRIPTION : S 666X
APPLICATIONS : Excellent weldability in all positions giving x-ray quality welds for original equipment manufacturing or repair work. For joining and repairing boiler plate, pipe steels, shipbuilding steels and cast steels.
MICROSTRUCTURE : In the stress – relieved condition the microstructure consists of acicular ferrite with some tempered bainite
CHARACTERISTICS: Easy strike and extremely smooth – spatter and turbulence free arc transfer eliminates many problems of low hydrogen welding. Coating is totally non-conductive. Unusually good AC welding characteristics. Semi-flexible coating allows slight bending of the electrode. LLYODS APPROVED 3YH
WELDING TECHNIQUES : Remove all surface contaminants. Maintain a short arc gap and use a stringer or slight weave technique. Chip slag thoroughly between passes.
RECOMMENDED AMPERAGE [ DC Reverse (+) or AC ] :-
Diameter (mm
|
2.5
|
3.2
|
4.0
|
5.0
|
Min. Amps
|
65
|
100
|
140
|
190
|
Max. Amps
|
100
|
140
|
190
|
250
|
MECHANICAL PROPERTIES :
Tensile Strength : 85,000 PSI
Yield Strength : 68,000 PSI
Elongation : 32 %
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