Postalloy® 22
Postalloy® 22 is a high hardness, high speed tool steel electrode designed for applications where very sharp edge retention is a primary concern. Weld deposits consist of alloying elements including tungsten, molybdenum and vanadium. The micro structure in the as welded condition consists of partially tempered martensite with carbides and some retained austenite. the weld deposit maintains many of its properties at elevated temperatures.
Specifications
Product Type
- Solid Core Electrode
Applications
- For repair and reclamation of high speed cutting and machining tools.
Weld Deposit Properties
- Additional:
- M2 high speed tool steel
- Heat treated hardness:
- 63-65Rc
- Good Hot Hardness up to 1100 °F (593 °C)
- Maximum overlay: 2-3 layers
- Must be ground
- Machinable:
- Non-machinable
- Hardness:
- 60Rc - 62Rc
Welding Parameters
Current Type: DC Electrode Positive , AC
| Amps | Diameter |
|---|---|
| 80-120 | 1/8" (3.2mm) |
| 110-150 | 5/32" (4mm) |
Welding Procedure:
When Welding on tool steel, preheat the part to 1100 °F (593 °C). Be sure to maintain this temperature during welding. Allow parts to cool slowly. This product can be welded flat, horizontal and vertical.
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| 1/8" (3.2mm) | Resealable Plastic Box |
| 5/32" (4mm) | Resealable Plastic Box |