Elgaloy Hard 100 is a high recovery electrode, producing a weld metal deposit extremely rich in chromium carbides which is highly resistant to abrasion but exhibits limited impact resistance. Ideal for hard surfacing components used in the mining and quarrying industries. Good wear and corrosion resistance at elevated temperatures. Surface cracking is normal and can be reduced by preheating to 250-450°C. A buffer layer of Elgaloy Mix 18 is recommended for heavy build-ups or surfacing 13% Mn steels to prevent crack propagation into base material. Deposits are not machinable but can be ground. Also available as a self-shielded flux cored wire, Elgaloy Hard R 100 and as a flux coated tubular electrode, Elgaloy Tube 100, designed to give high deposition rates at very low welding currents. The electrode is preferably to be used with DC+, to create a thick build up also AC is possible to use.