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FCW Wires
LoTherme OA-653
AWS: SFA
EN ISO CODE:
Self shielded open arc flux cored wire.
LOTHERME OA-653 is an open-arc hard-surfacing wire specially designed to
deposit hard finely dispersed Chromium carbides alloy in high chromium martensitic
matrix with micro-alloy additions in the weld metal. The wire welds with spray arc.
The deposited weld metal is good resistant to abrasion & erosion with very good
bonding properties. Weld bead is machinable by grinding.
LOTHERME OA-653 is suitable for applications where heavy compressive loads along with abrasion properties are required. The wire is especially suitable for sugar mill crushing rollers. The wire operates in both dry arcing & also in wet arcing condition of sugar mill rolls.
The wire also find use in screw conveyors, coal & cement crusher rolls, pulverizer
rolls, shovel bucket teeth, dredge cutters, etc.
Element: C, Mn, Si, Cr, Mo, Ti, etc
| Wire diameter, mm | Current, amp | Voltage, V | Stick out, mm |
| 2.4 | 250 – 430 | 28 – 32 | 30 – 40 |
| 2.8 | 280 – 480 | 28 – 32 | 30 – 40 |
| Hardness | Impact resistance | Abrasion resistance |
| 54-60 HRc | Moderate | Excellent |
DCEP/ DCRP/ DC (+)
2.4mm and 2.8mm
Wire is 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. The wire may
also be supplied in 25kg ring and 250kg cardboard drum packing.
