SAF Altig CrMo1 E description: ALTIG CrMo1 E is used for welding of similar composition used in power generation and chemical plant applications for service temperatures <550C. Also suitable where some resistance to hydrogen attack by sulphur bearing crude oil is required. Main applications include boilers, plate and tube steels as well as for the welding of quenched and tempered and case hardening steels, e.g. 13CrMo4-5 or ASTM A335 P11/P12.