Postalloy® DuraChrome™ 2835-MCO
Postalloy® DuraChrome™2835-MCO is a high hardness multi-carbide (complex carbide) hardfacing alloy containing large volumes of Chromium and Niobium carbides uniformly throughout a tough alloy matrix. It is recommended for applications involving severe abrasion or abrasion coupled with impact.
Specifications
Product Type
- Wire
- Metal-cored
- Open-arc
- Deposits are slag-free
Applications
- Iron and Steel - sinter breakers, grizzly bars, augers and conveyor screws, exhaust fans, coke pusher shoes, coke chutes and ash conveyor blades
- Mining - blast hole augers, ore or coal chutes, classifier flights, buckets and lips, wear plates and bulldozer blades.
- Power Generation - coal feeder screws, exhaust fan blades, post-hole diggers, and wet centrifugal pumps.
- Concrete and Cement - bag packer screws, cement chutes, pug mill paddles, die rings and feeder blades.
- Brick and Clay - arbors, bag packer augers, brick augers, feeder blades, pug mill augers, and screw conveyors
Weld Deposit Properties
- Chemistry:
- C - 5-6; Cr - 20-23; Nb - 5-8; Bal. - Fe, Si, Mn
- Cannot be flame-cut
- Deposit will readily relief check-crack
- Heat Resistance:
- Excellent oxidation resistance up to 1100 °F (591 °C)
- Hardness:
- 60Rc - 65Rc
Welding Parameters
Current Type: DC Electrode Positive , DC Electrode Negative
| Volts | Amps | Diameter | Stick Out |
|---|---|---|---|
| 15-26 | 100-225 | .045 (1.1mm) | 3/4" (19-25mm) |
| 20-28 | 160-300 | 1/16" (1.6mm) | 1"-1½" (25-38mm) |
| 28-30 | 230-400 | 3/32" (2.4mm) | 1"-1½" (25-38mm) |
Welding Procedure:
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| .045"(1.1mm) | 25 lb spool |
| 1/16" (1.6mm) | 25 lb spool |
| 3/32" (2.4mm) | 55 lbs (25kg) spool, 220 lbs(99.80kg) drum, 500 lb (226.80kgs) drum |