Postalloy® 2894-MCG
Postalloy® 2894-MCG is a non-cracking medium chromium gas-shielded hardfacing overlay designed for applications that require good corrosion, metal-to-metal wear and good abrasion resistance, but a crack-free weld deposit. It can be applied to carbon and alloy steels, and stainless steels.
Specifications
Product Type
- Wire
- Metal-cored
- Gas-shielded
- Deposits are slag-free
Applications
- For machine parts and equipment that must be rebuilt back to original dimensions and require a wear resistant overlay in the hardness range of 35Rc.
Weld Deposit Properties
- Additional:
- Good abrasion resistance
- Good corrosion resistance
- Deposit Thickness:
- Deposits thickness unlimited with proper preheat, interpass, and post-heat temperatures.
- Heat Resistance:
- Up to 900°F (482°C)
- Machinable:
- Deposits are machinable with carbide tools and good machining practices.
- Hardness:
- 28Rc - 36Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Short Arc | Stick Out |
|---|---|---|---|
| 15-21 | 90-200 | .045" (1.1mm) | 1/2“(12mm) |
| Volts | Amps | Spray Arc | Stick Out |
|---|---|---|---|
| 29-33 | 200-235 | .045" (1.1mm) | 5/8”(15mm) |
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" (1.1mm) | 25 lb (11.30kg) spool |