Low Hydrogen Electrode For Welding 1.25Cr-0.5Mo-0.2V Steels Subjected To Service At Elevated Temperatures Up To 550 ºC
RD-16BV
CLASSIFICATION
AWS A5.5 E8016-B2 (mod.) ; GB E5515-B2-V
PRODUCT DESCRIPTION
The design emphasis of the chemically basic flux is engineered to ensure the optimum weld metal properties demanded by the specification are fully met. The basic flux containing the appropriate alloying elements but minimal iron powder, is extruded onto a high purity ferritic core wire and bound with a blend of silicates that ensure both coating strength and a coating resistant to subsequent moisture absorption
WELDING FEATURES OF THE ELECTRODE
The chemical nature of the flux together with its controlled coating factor allows the electrode to be used at relatively low amps. This factor together with the fairly fluid but quick freezing slag facilitate vertical up welding including controlled penetration root runs. Overall the arc is very stable, slag detachability is good, fillet welds are slightly
convex and metal recovery is some 98% with respect to weight of the core wire
APPLICATIONS AND MATERIALS TO BE WELDED
Typically used for welding of 12Cr1MoV steel for such applications : high pressure, over-high pressure, or superheater of pre-critical power station boiler and pipeline, collecting box and mainly adapt to the catheter smoke which operated at elevated temperature up to 550 ºC.
WELDING AMPERAGE AC and DC
OTHER DATA
Electrodes that have become damp should be re-dried at 150oC for 1 hour
