21952-B W 1CML
TIG/GTAW rod for high temperature creep resistant 1.25%Cr-0.5%Mo ferritic steel, i.e. P11/P12. These steels are used for creep resisting applications up to ~550°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.
This type is identical to ER 80S-B2 except the lower Carbon content. Strength and Hardness of the weld metal may be lowerd leading to a higher resistance to cracking which is beneficial when the weldments are left in the as welded condition.
For matching 1.25%Cr-0.5%Mo creep resisting ferritic steels.
13CrMo 4-5, 16CrMo 4-4, GS-17CrMo 5-5
ASTM: A182 grades F11/F12, A199/A200 T11, A217 grades WC6/WC11, A234 grades WP11/WP12, A335 grades P11/P12, A387 grades 11/12
Preheat temperature: approx. 200°C
Interpass temperature: max. 300°C
PWHT: approx. 620°C - 690°C
SAW: UP-100 CrMo 1
MIG/GMAW: ED-SG CrMo 1 or ED-ER80S-B2
TIG/GTAW: WSG CrMo 1 / WSG ER80S-B2
Gas welding: U 49 CrMo