Postalloy® DuraBuild™ 2893-MCG
Postalloy® DuraBuild™ 2893-MCG is a medium hardness, machinable gas-shielded hardfacing and build-up wire. It provides high compressive strengths and the wear life will far exceed conventional build-up alloys and mild steel. Weld deposits are exceptionally sound and dense, and heavy build-ups are possible. Preheat may be necessary for certain low alloy, higher carbon steels. Use on carbon and alloy steels.
Specifications
Product Type
- Wire
- Metal-cored
- Gas-shielded
Applications
- Spindles
- Tractor undercarriage idlers and rollers
- Wobblers
- Trencher drive segments and rollers
- Work roll sprockets
- Dredge bucket pins
- Cable sheaves
- Dredge driving tumblers
- Gears and keyways
- Ladder rolls
- Ladle trunnions
- Lower tumblers
- Conveyor chain links
- Bulldozer trunnions
- Shovel carrier rollers
- Continuous miner bearing carrier
- Driving sprockets
- Shaker conveyor rails
- Driving tumblers
- Shaker pan conveyor
Weld Deposit Properties
- Additional:
- Deposits are slag-free
- Gases: CO, Ar/CO, Ar/Ox2
- Preheat may be required for certain low alloy, higher carbon steels
- Deposits can be flame-cut
- Deposit Thickness:
- Unlimited
- Hardness:
- 40Rc - 45Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Short Arc | Stick Out |
|---|---|---|---|
| 15-21 | 90-200 | .045" (1.2mm) | 1/2" (12.7mm) |
| 18-21 | 150-220 | 1/16" (1.6mm) | 3/4" (19mm) |
| Volts | Amps | Spray Arc | Stick Out |
|---|---|---|---|
| 27-30 | 250-325 | .045" (1.2mm) | 5/8" (15.8mm) |
| 27-30 | 300-375 | 1/16" (1.6mm) | 3/4" (19mm) |
Welding Procedure:
When welding out-of-position, use the lower ranges of voltages and amperages: 16-19 volts and 100-150 amps.
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| .045" (1.2mm) | 25 lb (11.30kg) spool |
| 1/16" (1.6mm) | 25 lb (11.30kg) spool |