Postalloy® DuraBuild™ 2891-MCG
Postalloy® DuraBuild™ 2891-MCG is a low alloy build-up hardfacing wire with very good compressive strength and resistance to plastic deformation. An ideal base for subsequent overlay with a more wear resistant alloy. Also good when an easily machined "as welded" deposit is required. Use on carbon and low alloy steels
Specifications
Product Type
- Wire
- Metal-cored
- Gas-shielded
- Deposits are slag-free
Applications
- Where low alloy buildup is needed
Weld Deposit Properties
- Additional:
- Deposits can be flame cut
- Deposit Thickness:
- Unlimted
- Machinable:
- Deposits are fully machinable
- Hardness:
- 21Rc - 25Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Short Arc | Stick Out |
|---|---|---|---|
| 15-21 | 90-200 | .045" (1.1mm) | 1/2"(12mm) |
| 18-21 | 150-220 | 1/16" (1.6mm) | 3/4"(19mm) |
| Volts | Amps | Spray Arc | Stick Out |
|---|---|---|---|
| 27-30 | 250-325 | .045" (1.1mm) | 5/8"(15mm) |
| 27-30 | 300-375 | 1/16" (1.6mm) | 3/4"(19mm) |
Welding Procedure:
Use 98/2 Argon/Oxygen with 120pps. When welding out-of-position, use the lower ranges of voltages and amperages: 16-19 volts and 100-150 amps.
Product Equivalent:
Electrode: Postalloy® 27
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| .045" (1.1mm) | 25 lb (11.30kg) spool |
| 1/16" (1.6mm) | 25 lb (11.30kg) spool |