Postalloy® DuraHard™ 2898-MCG
Abrasion resistant Postalloy® DuraHard™ 2898-MCG is a general purpose self-hardening overlay with a good combination of resistance to abrasion and impact. DuraHard™ 2898-MCG is very tough with excellent resistance to chipping and spalling. Deposits will retain their hardness and maintain a good cutting edge up to 1100°F (593°C). For maximum impact resistance and to avoid cracking in multi-layer deposits, a preheat of 550°F (288°C) is recommended. Use to overlay carbon, low alloy steel and manganese steel.
Specifications
Product Type
- Wire
- Metal-cored
- Gas-shielded
Applications
- Tamper feet
- Bucket Teeth
- Farm Implements
- Dragline buckets, teeth and lip[s
- Tillage tools
- Conveyor screws
- Augers
- Bulldozer blades and end bits
Weld Deposit Properties
- Additional:
- Deposit Thickness:
- Unlimited layers with proper procedures, including preheat and interpass temperature
- Heat Resistance:
- Deposits will retain their hardness and maintain a good cutting edge up to 1100°F (593°C).
- Machinable:
- Non-machinable
- Hardness:
- 55Rc - 59Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Short Arc | Stick Out |
|---|---|---|---|
| 15-21 | 70-190 | .035" (0.9mm) | 1/2"(12mm) |
| 15-21 | 90-120 | .045" (1.1mm) | 5/8"(15mm) |
| 18-21 | 150-220 | 1/16" (1.6mm) | 3/4"(19m150-220m) |
| Volts | Amps | Spray Arc | Stick Out |
|---|---|---|---|
| 20-27 | 230-300 | 035" (0.9mm) | 1/2"(12mm) |
| 27-30 | 250-325 | 045" (1.1mm) | 5/8"(15mm) |
| 27-30 | 300-375 | 1/16" (1.6mm) | 3/4"(19m150-220m) |
Welding Procedure:
Product Equivalent:
Electrode: Postalloy® 21 Flux-coated Electrode,
Packaging Options
| Diameter | Standard Packaging | |
|---|---|---|
| .035" (0.9mm) | 25 lb (11.30kg) spool | |
| .045" (1.1mm) | 25 lb (11.30kg) spool | 55 lb (50kg) coil, 220 lb (99.80kg) drum |
| 1/16" (1.6mm) | 25 lb (11.30kg) spool | 55 lb (50kg) coil, 220 lb (99.80kg) drum |