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For Open Arc
LoTherme OA-6178
AWS: SFA
EN ISO CODE:
LoTherme OA-6178 is a hard-surfacing wire to deposit complex carbides of chromium, molybdenum along with niobium and also alloyed with nickel & copper. The weld metal has excellent abrasion resistance property for moderate impact applications - service temperature up to 600°C. The deposited weld bead has metallic appearance and does not require any post-weld cleaning. Stress relief cracks appear on surface of the weld during cooling of the bead. Weld bead is machinable by grinding.
Approvals
TYPICAL ALLOY BASIS OF THE WELD METAL:
| Element | C, Mn, Si, Cr, Ni, Mo, Nb, Cu |
ALL-WELD METAL PROPERTIES (TYPICAL):
| Hardness | Impact resistance | Abrasion resistance |
| 62 HRc | Moderate | Excellent |
WELDING CURRENT & STICK OUT:
| Wire diameter, mm | Current, amp | Voltage, V | Stick out, mm |
| 2.4 | 250 – 300 | 26 – 30 | 30 – 40 |
| 2.8 | 300 – 350 | 26 – 30 | 30 – 40 |
WELDING POLARITY:
DCEP/ DCRP/ DC (+)
STANDARD WIRE DIAMETERS:
2.4mm and 2.8mm
PACKAGING:
Supplied in a layer wound 12.5 kg plastic spool. Each spool is sealed in polythene bag and then packed in a shrink-wrapped corrugated box.
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