DUROARC 77 2.5mm E7018 2.3kg Wheels Champion S Tapp Threading Champion S Tapp NMEA 2000® LEN 1 (50 mA) The DUROARC 77 is an extra lowhydrogen moisture resistant steel electrode designed to weld in all positions including vertical down An excellent electrode for joining and repairing boiler plate pipe steels shipbuilding steels and cast steels Also excellent for welding weathering steels such as CortenThe DUROARC 77 is designed for welding of lowalloyed steels of medium tensile strength and where high xray qualities are requiredSPECIFICATIONSTensile Strength610 MPaYield Strength500 MPaElongation32 Charpy V Notch 30C90JAPPLICATION Structural steel Pressure vessels Pipework Earthmoving Equipment Repair and maintenanceWELDING PROCEDURESRemove all surface contaminants Maintain a short arc gap and use a stringer or slight weave technique Chip slag thoroughly between passesAWS A 51 E70181 H8