MEGAFIL® 731 B is a seamless basic flux cored wire with excellent operating characteristics and is suitable for steels with a tensile strength up to 600 N/mm2. It produces weld metal with superior crack resistance under difficult conditions of high restraint and exhibits good low temperature  impact toughness down to -60 ºC . Due to the seamless production process the hydrogen content is below 3 ml / 100 g weld metal even after long storage.  Low spatter levels combined with extreme stable arc guarantee an excellent weldability.   Applications: steel construction, buffer layers, severe service, pressure vessels, general fabrication, heavy transport, Earthmoving equipment, Railroad rails etc.