Alcord 5 Si has a special coating for welding aluminium-silicon alloys and for joining dissimilar aluminium alloys. When welding , hold the electrode at a right angle to the workpiece, with a short arc. Wall thicknesses greater than 10mm and larger workpieces will require preheating from 150°C to 250°C. Since slag residues are corrosive, they must be completely removed from the weld bead. Alcord 5Si may be used for oxyacetylene welding. The covering being hygroscopic, electrodes must be stored in an absolutely dry location or re-dried if required. Click here for data sheet for full specification. Size: 3.20mm x 350mm 152 pcs (ca. 2.0kg)
