Harris 742 015 660 CR 742015660CR Ammonia NitrogenDioxide Regulator Lincoln Electric WIRE DRIVE FINAL ASBLY L12379 8 13 high chromium carbide iron based hardfacing SMAW PC Board 13 high chromium carbide iron based hardfacing SMAW electrode that deposits a primary chromium carbide overlay in an austenite carbide matrix (55 62 HRC as welded) for the most severe metal to earth and metal to mineral abrasion service Confirm S24410 2 9SS24410 2 in the applicable Lincoln parts list using the model and code number from the rating plate except for CGA 240 and 510 models that are equipped with a 400 psig inlet gauge Model HP742 is available with various delivery pressures