Harris 701 015 320 G 701015320G Carbon Dioxide Regulator Intermediate Education Kits LINCORE 55 5 64 inch welding 1 16 in 36 LINCORE 55 5 64 inch welding wire is produces a martensitic and some retained austenite deposit with a hardness range of Rockwell Hardness 50 59 (RHC) delivers a deposit which resists metal to metal rolling or sliding wear as well as mild abrasion establishing it as the ideal solution for educational institutions and training facilities that require consistent welding performance across multiple applications Equipped with an external relief valve Designed to 1 x 10 8 cc sec inboard helium leak rate to maintain gas purity levels