SK 900-O high alloyed steels
Classifications open arc metal cored wire
DIN 8555
MF 21-GF-65-G
Characteristics
Cored wire containing about 60 % Tungsten carbide particles. The composition and particle
size have been optimized to provide the best combination of toughness and wear resistance.
The deposit will readily show stress relief cracks.
Microstructure: 65 % Tungsten carbides
35 % austenite + martensite
Machinability: Grinding only
Deposit thickness: 1 to 2 layers maximum
Field of use
Wheel excavator bucket teeth, concrete mixer blades, brick and clay mill augers, crusher
rollers, wood chipper spouts and bed knives, dredging wear parts, etc.
Typical analysis in %
C Mn Si Cr W Fe
2,9 0,4 0,4 5,8 42,0 balance
Typical mechanical properties
Hardness as welded: 63 HRC
Form of delivery and recommended welding parameters
Wire diameter (mm) Amperage Voltage Stick-Out
1,6 125 – 200 19 – 24 35 – 40
2,0 140 – 250 19 – 24 35 – 40
2,4 150 – 300 19 – 24 35 – 40
