Metrode Met-Hard-350 description: These consumables deposit weld metal with a hardness in the range 380-410HV; actual hardness depends on base metal composition and number of layers deposited. The deposit gives a wear resistant crack-free deposit suitable for conditions of moderate abrasion and friction coupled with resistance to heavy impact. Items suitable for surfacing include slideways, trackwheels, rails, roller guides, couplings, brake drums and shoes, rope winches, caterpillar tracks, and clutch plates and cones.