| 摘要 |
1. Filler wire or filler band electrode for hard surfacing by the electric arc welding the wire or band consisting of a steel envelope and a filler weighting at least 25 percent by weight of the total wire or strip weight, characterized in that the electrode contains at least 6 to 9 percent by weight of carbon, 10 to 30 percent by weight of chromium, 15 to 30 percent by weight of Nb/Ta and, as the case may be, 5 percent by weight of one or more of the alloying elements of the series Si, Mn, Al, Ni, Ti, V, W, Zr, the remainder being composed of iron and impurities, with the proviso % C >= % Cr/10 + % Nb/5. |
