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UTP 690 is used for repair and production of cutting tools, particularly for building-up cutting edges and working surfaces. The deposit is highly resistant to friction, compression and impact, also at elevated temperatures up to 550°C. The production of new tools by welding on non-alloy and low-alloy base metals is also possible (cladding of cutting edges). UTP 690 has excellent welding properties, a smooth, finely rippled bead appearance and very easy slag removal due to the rutile coating. The weld deposit is equivalent to a high speed steel with increased Mo content. Hardness of the pure weld metal approx. 62 HRC soft annealed 800 - 840°C approx. 25 HRC hardened 1180 - 1240°C and tempered 2 x 550°C approx. 64 - 66 HRC