BASIC FLUX COATED ELECTRODE THAT DEPOSITS WELD METAL CORRESPONDING TO THAT OF A HIGH SPEED TOOL STEEL
HV-90
PRODUCT DESCRIPTION
The design emphasis of the chemically basic flux is engineered to ensure that the weld metal hardness levels demanded by the specification are fully met without detracting from the toughness levels associated with this class of alloy. The basic flux containing the appropriate alloying elements and a balanced addition of iron powder is extruded onto a high purity ferritic core wire using a balance of silicates that ensures both coating strength and resistance to moisture absorption.
WELDING FEATURES OF THE ELECTRODE
The electrode is suitable for both AC and DC and may be used in all positions except vertical down. Arc stability is good as is slag detachability. Weld seams are smooth, evenly rippled and slightly convex in shape. The metal recovery of the electrode is some 120% with respect to weight of the
core wire.
APPLICATIONS AND MATERIALS TO BE WELDED
The weld deposit corresponds in analysis and properties to that of a high speed tool steel which provides hardness and toughness on many applications up to 600 ºC, e.g.: suited to the repair of reclamation of high speed cutting and machinery tools in either the ‘as welded’ or ‘heat treated’ condition.
WELDING AMPERAGE AC and DC
OTHER DATA
Electrodes that have become damp should be re-dried at 150ºC for 1 hour.
