24598-A-S S Z CrMo2Mn
Submerged arc welding wire for high temperature creep resistant 2.25%Cr-1%Mo ferritic steel, i.e. P21/P22. These steels are used for creep resisting applications up to ~600°C. Typical applications in power generation plant include steam piping, turbines and boilers; the alloy also finds applications in the chemical and petro-chemical industries. The wire has low levels of tramp elements (eg. Sn, As, Sb and P) providing a low Bruscato Factor (X< 10 ppm) for temper embrittlement resistant applications.
For matching 2.25%Cr-1%Mo creep resisting ferritic steels.
10CrMo 9-10, 10CrSiMoV 7, G-17CrMo 9-10
ASTM: A182 grade F22, A199/A200 grades T21/T22, A213 grade T22, A217 grade WC9, A234 grade WP22, A335 grade P22, A387 grades 21/22
Preheat temperature: 200°C
Interpass temperature: max. 300°C
SAW: UP-99 CrMo 2
MIG/GMAW: ED-SG CrMo 2 or ED-ER90S-B3
TIG/GTAW: WSG CrMo 2 or WS ER90S-B3
Gas welding: U 50 CrMo