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UTP 630 is suited for particularly tough, crack resistant joints and surfacings on high strength steels, hard-manganese steels and heterogeneous joints. Suitable for surfacings on parts subjected to impact, pressure and rolling wear, such as rails, curved rails, switches, rolls etc. and for tough buffer layers under hard alloys. A main application field is for repair and maintenance in the constructional industry. UTP 630 is easily weldable with stable arc, homogeneous, finely rippled bead appearance and gives good slag removal. The fully austenitic weld metal is resistant to corrosion and to scale up to 850°C. The weld metal is work-hardenable. Hardness of the pure weld metal untreated: approx. 200 HB work-hardened: approx. 350 HB
