Postalloy® DuraHard™ 2825NC-MCG
Postalloy® DuraHard™ 2825NC-MCG is a non-cracking carbide containing martensitic hardfacing alloy for improved abrasion and impact resistance compared to standard general purpose hardfacing alloys. DuraHard™ 2825NC-MCG works especially well on dirty contaminated surfaces. Weld deposits are smooth and free of any slag. An excellent choice for applications requiring crack-free deposits with good wear characteristics. Use on carbon and low alloy steels.
Specifications
Product Type
- Wire
- Metal-cored
- Gas-shielded
Applications
- Scraper blades
- Shovel and Dragline Bucket teeth
- Bulldozer blades and end bits
- Backhoe buckets
- Tillage tools
- Conveyor screw auger flights
- Mixer blades
- Fan blades
- Shredder & Shredding equipment
Weld Deposit Properties
- Maximum Overlay:
- Unlimited layers with proper procedures, including preheat and interpass temperatures
- Deposits are slag free
- Good hot-hardness up to 1000 °F (593 °C)
- Machinable:
- Non-machinable
- Hardness:
- 58Rc - 60Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Diameter | Stick Out |
|---|---|---|---|
| 26-31 | 160-350 | 1/16" (1.6mm) | 3/4"-1" (19-25mm) |
| 27-32 | 250-425 | 5/64" (2mm) | 1"-1 1/2" (25-38mm) |
Welding Procedure:
Gas: 98%/2% Ar/Ox; Preheat and interpass temperature according to base metal chemistry.
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| 1/16" (1.6mm) | 25 lbs (11.30kgs) spool |
| 5/64" (2mm) | 25 lbs (11.30kgs) spool |