Postalloy® DuraChrome™ 2837-MCO
Postalloy® DuraChrome™ 2837-MCO is specifically designed to produce a concentration of fine chromium
carbides, borides and various secondary carbides in an austenitic matrix. The fine dispersion of carbides
greatly improves the abrasive wear resistance and impact toughness compared to ordinary chromium carbide
products. Very consistent crack pattern makes DuraChrome™ 2837-MCO an excellent choice for multi-layer
hardface applications. This helps reduce the probability of spalling and chipping.
The weld deposit is not machinable and will withstand hot wear applications up to 1000 °F (538 °C).
Specifications
Product Type
- Metal-cored
- Open-arc
Applications
- Sugar Mill Rolls (Chapisco)
- Wear Plates
- Gyratory Mantles
- Pulverizer Rolls
- Grinding Rings
- Tillage tools
- Irrigation Tilling plows
Weld Deposit Properties
- Additional:
- **RCT™ Reactive Core Technology improves weldability and optimizes wear properties.
- Moderate impact resistance
- Will stress relieve, consistent check crack pattern
- Machinable:
- Non-machinable
- Hardness:
- 60Rc - 66Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Diameter | Stick Out |
|---|---|---|---|
| 20-26 | 100-225 | .045" (1.2mm) | 3/4" - 1" (19mm-25mm) |
| 24-28 | 200-250 | 1/16" (1.6mm) | 1" - 1 1/4" (25-32 Mm) |
| 28-32 | 400-650 | 7/64" (2.8mm) | 1 1/4" - 1 1/2" (32-38mm) |
Welding Procedure:
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| .045" (1.2mm) | 25 lb (11.30kgs) spool |
| 1/16" (1.6mm) | 25 lb (11.30kgs) spool |
| 7/64" (2.8mm) | 55 lb (25kgs) coil |