Basic Low Hydrogen Electrode For Welding C-Mn-Mo Steels Operating Up To 450ºC
RD-716A
SPECIFICATION
AWS A5.5 | EN ISO 3580-A | JIS Z 3223
CLASSIFICATION
E7016-A1 | E Mo B | DT 1216
PRODUCT DESCRIPTION
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.
WELDING FEATURES OF THE ELECTRODE
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.
APPLICATIONS AND MATERIALS TO BE WELDED
Nominal 0.5Mo content improves elevated temperature performance of weld metal over C-Mn types operating at 450ºC. Materials to be welded include:
ASTM A335-P1 A209 and A250-Tl BS3059-243-3606-243-245 2U Forged ASTM A336-F1 A204 A, B and C. Cast ASTM A217-WC1 A352-LC1
WELDING AMPERAGE AC and DC
OTHER DATA
Electrodes that have become damp should be re-dried at 150oC for 1 hour
