SAF Safer R 400 description: SAFER R 400 is a thin rutile coated MMA electrode for hardfacing applications, which is very easy to use. Used for surfacing against sliding impact, e.g. slideways, shock, e.g. cams and rolling impact, e.g. rotors. Typical applications are civil works and agricultural equipment such as crane parts, rails, slideways, rope pulleys, track-supporting rollers of crawler-type vehicles, wheel flanges, stud links and others. Weld metal hardness of 240 - 290 HV1 0 in the as-welded condition, it can reach 400 HV after water-quenching. Deposit a maximum of 3 layers. Excellent weldability in all position except Vertical Down. Shall be used in DC- or AC mode.