MAGMAWELD EH 528 Hard Facing Electrodes
MAGMAWELD EH 528 Hard Facing Electrodes
A basic type heavy coated high recovery electrode for depositing primary and eutectic Cr and Nb carbides in austenitic matrix. Suitable for hard facing of parts subjected to heavy abrasion with moderate impact. Service temperature is maximum 450˚C. The typical transverse cracks occurring in such a hard metal is not suitable for applications where impact and shock conditions prevail. Wear coefficient of one layer deposit is 0.5 % with Si O2. The weld metal is machinable only by grinding. Metal recovery of 180%. Suitable to use in hard facing of cement crushers, cement presses and brick conveyor screws, mixer blades, press screws in the oil industry, bucket lips and teeth in earth moving equipment. Possible to use with both DC and AC.
- Heavy Abrasion Moderate Impact
- Non Machinable, Grind Only
- Chrome, Niobium Carbide Matrix
- Easy Strike and Restrike
- Relief Checks in Final Deposit
- Metal Recovery 180%
Hardness:
63HRc (1st pass) 62HRc (2nd pass) 64HRc (3rd pass)
Typical Weld metal Analysis:
C 7.0% Cr 24% Nb 7.0% Fe Balance
