Oerlikon Citolit 21CT description: CITOLIT 21CT is a cobalt base continues cast hardfacing rod with type ER CoCr-E for GTAW/TIG welding, supplied with 5kgs tube packaging. Suitable for use with Ar shielding gases. CITOLIT 21CT is applied for welding of engine valves, hot forging dies, gas turbines. Preheat large components or special steels to 200-400C. Keep this temperature during welding and cool down slowly, preferable in an oven, to reduce the risk of crackingwhile cooling. CITOLIT 21CT has a very good resistance to metal-metal wear, thermal shock, corrosion and heat up to 1000C. Excellent gliding characteristics, high toughness, good to polish, non-magnetic.