Thermanit 309 H

TIG rod type G 22 12 H / 309 (mod.) for joint and build-up welding of similar or similar heat-resistant steels, cast steel and ferritic CrSiAl steels, e.g. in hardening shops, the petroleum industry and the ceramics industry. Steels, cast steels and ferritic CrSiAl steels, e.g. in hardening shops, the petroleum industry and the ceramics industry. For high temperature applications preferably used in oxidising atmospheres. For joint welds on CrSiAl steels that are exposed to sulphur-containing gases, cover layers in contact with the medium must be welded with a be welded with a 25 4 filler metal.