Postalloy® 2506-B
Postalloy® 2506-B Conforms to AWS CoCr-A. Cobalt base hardfacing alloy with chromium carbides providing excellent resistance to metal to metal wear and corrosion over a wide temperature range. Offers outstanding self-mating, anti-galling properties and it is effective when abrasion is accompanied by thermal shock or impact. Deposits are machinable. Crack-free deposits can be made with proper preheat, post heat and inter-pass temperature.
Specifications
Product Type
- Tig
- Oxy-fuel
- Cobalt Base Hardfacing Alloy
Applications
- Shear blades, Fluid flow valves, Extrusion screws, Roll bushings, and Valve bearing surface.
Weld Deposit Properties
- Additional:
- Crack-free deposits with proper preheat (takeoff)
- Deposit Thickness:
- 2 layers
- Machinable:
- Deposits are machinable
- Hardness:
- - 43Rc
Welding Parameters
Current Type: DC Electrode Negative
| Volts | Amps | Gas | Tig |
|---|---|---|---|
| 15-25 | 50-80 | 100% Ar | .045" (1.2mm) |
| 15-25 | 55-90 | 100% Ar | 1/16" (1.6mm) |
| 15-25 | 75-100 | 100% Ar | 3/32" (2.4mm) |
| 15-30 | 90-120 | 100% Ar | 1/8" (3.2mm) |
| 15-30 | 120-140 | 100% Ar | 5/32" (4mm) |
| 15-30 | 140-160 | 100% Ar | 3/16" (4.8mm) |
| Oxyacetylene | Tip Size | Flame |
|---|---|---|
| .045" (1.2mm) | 3 | 3x-4x |
| 1/16" (1.6mm) | 3-4 | 3x-4x |
| 3/32" (2.4mm) | 3-4 | 3x-4x |
| 1/8" (3.2mm) | 4 | 3x-4x |
| 5/32" (4mm) | 4 | 3x-4x |
| 3/16" (4.8mm) | 5 | 3x-4x |
Welding Procedure:
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| All Diameters | 10 lb (4.54kg) tubes |