Oerlikon Molycord A1 description: MOLYCORD A1 is a basic coated ½%Mo electrode suitable for welding creep resistant steels like 16Mo3, SA 204, SA 182 F1, SA 336 F1 and similar. Approved up to +530C. Very low diffusible hydrogen (HD<4ml/100g). Suitable for the fabrication of pressure vessels, boilers, pipes in Power generation and Petrochemical, Refinery Industry. The MOLYCORD A1 offers excellent operability in all position welding except downhill. Stable arc with excellent bead shape and low spatter. Preheat min 90C, Interpass max. 120C. Efficiency about 120%. Suitable for use with DC positive.