HF-425 x 2.5mm
Classification DIN 8555 : E10-UM-60-GRPZ
Synthetic rutile coated hardfacing electrode with high recovery ( 160% ). For applications subject to abrasive wear by minerals, combined with medium shocks and compression.
Austenitic matrix containing Cr carbides. Deposit resists corrosion due to the high chromium
content ( 32% ) as well as heat up to 200°C.
Easy flow, self releasing slag.
Maximum hardness, as deposited, is reach in 3 layers
Applications
For applications where resistance to high abrasion combined with a good
resistance to shock is required. Only machinable by grinding.
For excavating and crushing equipment, surfacing of endless screws, mixer blades, pump bodies for abrasive materials, excavator teeth, crushing installations for minerals, concrete pumps, ore crushing, ploughshares, screw presses for the brick manufacturing industries.
All weld metal Hardness
~ 58HRC 61 – 63HRC
Typical weld metal composition (%)
C Si Mn Cr Fe
3.5 1.0 1.0 32 Rem
Packaging data
Size (mm) 2,5×350 3,2×350 4,0×350 5,0×450
Electr./Packet 161 102 69 40
Electr./Carton 644 408 276 160
Kg/1000 Electr. 28 49 72 161
Packets/Carton 4 4 4 4
Kg/Packet 4.5 5 5 6.5
Kg/Carton 18 20 20 26
Welding Parameters
Amps (A) 90 130 160 210
Additional Information
Redrying, if necessary, 1h/250°C. Guide electrode almost vertically with a short arc.
In case of hardfacing highly alloyed steels like stainless steels, it is recommended to apply a cushion
layer with 18/8Mn. [AS-300]
Welding Positions
1G
