Electrode Castec 3055 3.20mm 1.0Kg

Mechanical properties

CasTec 3055 is formulated for use on machine bases, pump housings, transmission cases and gears where a dense, machineable, crack-free deposit is needed. Additional applications include jacketed castings, cast and malleable fittings, motor blocks and housings, etc.

Base Metals
Recommended for welding alloy cast irons as well as steel to cast iron.

Preparation
Thoroughly clean weld area, removing all scale, grease, dirt, inclusions, moisture or any other contaminants. Bevel cracks and sharp corners (and other stress raisers) using Xuper ExoTrode.

Preheating
In many cases the welding can be done without any preheat (interpass temperature approximately 50oC maximum) though proper preheat may be required for some complex castings, to assist welding.

Welding parameters

Welding polarity AC/DC

Welding technique
Strike initial arc on clean scrap steel and carry over to weld area. Maintain a short to medium arc at the lowest feasible amperage. Use stringer beads and weaving, if used, should be restricted to 2 x electrode diameter. Back whip craters. Lightly peen hot weld beads to reduce stresses. Remove slag between passes. Cover finished part, in order to retard cooling.