21952-A G CrMo91
MIG/GMAW wire for high temperature, creep resistant, modified 9%Cr1%Mo martensitic steel (T91/P91). T91/P91 steel is commonly used at service temperatures up to 600°C. V, Nb and N additions provide this ‘creep strength enhanced ferritic’ (CSEF) alloy with improved high temperature creep resistance compared to standard CrMo creep resistant alloys. Alloy T91/P91 is widely used in the power generating industry for fossil fuel ultra-super-critical (USC) power plant boilers and turbines; the alloy is also finding applications in the chemical and oil and gas industries.
Ni+Mn<1,0%, different Ni-contents on request. X-Factor <10ppm
For matching P91, 9%Cr1%Mo modified, creep resisting martensitic steels.
ASTM: A182/A336 grade F91, A213 grade T91, A217 grade C12A, A234 grade WP91, A335 grade P91, A387 grade 91
RT ≥ 47
Preheat temperature: 200°C
Interpass temperature: max. 300°C
TIG/GTAW: WSG P91