NIKKO STEEL Welding Electrode Kawat Las NSN 312 2.6mm 2.6 mm 3.2mm 3.2 - 2.6 mm

NIKKO STEEL
Welding Electrode Kawat Las
NSN 312
2.6mm x 300mm, isi 4KG
3.2mm x 350mm, isi 4KG


PRODUCT DESCRIPTION
A metallurgically based rutile flux with balanced additions of chemically basic
and amphoteric minerals that deposits duplex weld metal containing some 40%
delta ferrite and 60% austenite.
The flux is extruded onto a fully alloyed 29Cr 9Ni core wire using a blend of
silicates that ensures both coating strength and resistance to subsequent
moisture absorption.

WELDING FEATURES
This unique flux formulation ensures excellent arc stability, ease of initial arc
strike and re-strike, minimal spatter on AC and virtually none on DC+.
The resultant weld seams are smooth, evenly rippled and free from undercut
while slag detachability is excellent. Metal recovery is some 103% with respect
to core wire weight.

APPLICATION AND MATERIAL
Primarily designed for high carbon steels, cast or wrought, which are well known
as difficult to weld or problem steels. The duplex microstructure of the weld
metal will tolerate high dilution with such steels while still maintaining its strength
ductility and thus resistance to cracking.
It can also be used very successfully for joining carbon steels to stainless steels,
the only exception to its extensive use on such applications is that at service
temperatures above 300ºC a drop in weld metal ductility occurs.

OTHER DATA
Electrodes that have become damp should be re-dried at 120oC for 30 minutes