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ED-SG P91

MIG (GMAW) wires for creep resisting steels

Quality ED-SG P91
Classification DIN EN ISO 21952-A G CrMo91
Material No. 1.4903
Classification AWS A5.28 ER90S-B9
Approvals -
Characteristics and application 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
Base materials For matching P91, 9%Cr1%Mo modified, creep resisting martensitic steels.
X10CrMoVNB 9-1
ASTM: A182/A336 grade F91, A213 grade T91, A217 grade C12A, A234 grade WP91, A335 grade P91, A387 grade 91
Typical analysis in %
C: 0,10
Si: 0,32
Mn: 0,50
Cr: 9,20
Ni: 0,45
Mo: 0,95
V: 0,20
Nb: 0,05
Yield strength in Mpa ≥ 520
Tensile strength in Mpa ≥ 620
Elongation in % 4d/5d: ≥16
Charpy-V-Value (ISO-V) in J RT ≥ 47
Other products SAW: UP-P91
TIG/GTAW: WSG P91