Welding Wire STANLEY 639 AC - DC

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.