WeldChrome Cobo – 21

WeldChrome Cobo – 21

Electrode for Stellite – 21 Grade
WeldChrome Cobo – 21 is a cobalt, chromium and Moly based electrode designed for hardfacing components that are exposed to severe wear, high temperature, galling & corrosion. Weld deposits provide exceptional strength, resistance to metal to metal wear & maintain mechanical properties at elevated temperature upto 870°C. It is especially effective in applications involving thermal cycling, cavitation & impact.

Applications:
Valve seats & gates in steam, petroleum & chemical plants, pump shafts, sleeves, impeller, mixer blades.

Properties:
Hardness: 30-40 HRC (As Welded) 45-50 HRC (Work Harden)

Current in Amps
2.50 x 350 60 – 90
3.15 x 350 90 – 130
4.00 x 350 120 – 170
5.00 x 350 150 – 200