High C-, Cr-, Mo-, Nb-, V-, W-alloyed flux-cored wire electrode which forms extremely hard carbides for extremely hard deposits on parts subject to excessively heavy abrasive wear weldable without protective gas. Extreme good wear resistance even at higher temperatures up to 650ºC. More than 1 or 2 layers should not be deposited. Hardness reduction at 400°C app. 4%, at 650°C app. 10%. A Buffer layer with OA 4370 or OA MnCr is recommended in case of old layers or critical base metals. Equivalent in SMAW: Dur 64