Specification of Welding Wire STANLEY 639 AC - DC
HIGH NICKEL CAST IRON
Soft very machinable high nickel cast iron electrode featuring a totally nonconductive
flux coating.
· Flux coating does not side arc even after being heated.
· Unusually strong arc drive penetrates oil and grease easily.
· Evcellent for vertical up welding.
· Also available in TIG form as product code STANLEY 639 TIG.
TYPICAL MECHANICAL PROPERTIES
Undiluted Weld Metal Maximum Value Up to:
Tensile strength 55,000 Psi ( 380 Mpa )
Yield strength 38,000 Psi ( 270 Mpa )
Elongation 30%
Impact energy Rockwell B 82-84 Brinell 155
Hardness Vickers 140
APPLICATIONS
Very soft machinable welds on all weldable cast irons. Especially suited for welding in deep
recesses or close quarters due to the non-conductive flux coatng.
MICROSTRUCTURE
Austenite nikel with finely distributed graphite flakes.
RECOMMENDED CURRENT
DC Reverse (+) or AC
WELDING POSITIONS
Flat, Horizontal, Vertical up, Vertical down, Overhead.
WELDING TECHNIQUES
Maintain a close arc gap and move rapidly in the direction of travel. Slag can be welded
over without removal.
