Application field UTP A 7550 can be welded by oxy-acetylene or TIG process. The rod is based on a Ni-Cr-B-Si matrix enveloping tungsten carbides. These carbides have two different grain sizes and build a compact shielding layer on the rod. The matrix melts at 1050° C, i.e. under the melting range of steels. UTP A 7550 is particularly suitable for claddings on machine parts subject to extreme friction wear by hard, abrasive materials. This alloy is used in brickyards, industries of argillaceous earth, cement factories, mining, offshore such as for producing the machines and systems of the mentioned industries. Properties of the weld metal Only suitable for slight to medium impact stress. The weld deposit is corrosion resistant. Hardness Carbide : approx. 2500 HV Matrix : approx. 2555 HRC