Postalloy® DuraForge™ 2756-FCG
Postalloy® DuraForge™ 2756-FCG is a modified 5% chrome-tungsten-moly-vanadium enriched welding alloy. Due to additional moly and vanadium, DuraForge™ 2756-FCG is more wear resistant than Postalloy® DuraForge™ 2755-FCG. Used to upgrade standard AISI H-12 hot-working tool steels. Water spray coolants should be avoided.
Specifications
Product Type
- Wire
- Flux-cored
- Gas-shielded
Applications
- See above
Weld Deposit Properties
- Heat Treatment:
- H-12 Procedure
- Has easily removed slag covering
- A 3/8" overlay would be the maximum
- Hardness:
- 53Rc - 57Rc
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Diameter | Stick Out |
|---|---|---|---|
| 30-31 | 300-310 | 1/16" (1.6mm) | 1“ (25mm) |
| 26-32 | 250-450 | 3/32" (2.4mm) | 1¼" (32mm) |
Welding Procedure:
Shielding Gas:75/25 Argon/CO2, 80/20 Argon/CO2, 90/10 Argon/CO2, 92/8 Argon/CO2. Slow cooling after welding is extremely important to reduce stress build-up and minimize the risk of cracking. Therefore, using this wire requires a minimum of preheat from 600-800 °F (315-427 °C) depending on size of the part and composition of the base metal. Throughout welding operation, limit interpass temperature to 900 °F (480 °C). After welding, the part should be returned to the preheat furnace to allow the temperature throughout the part to equalize.
Packaging Options
| Diameter | Standard Packaging | Standard Packaging Available |
|---|---|---|
| 1/16" (1.6mm) | 33 lb (15kgs) spool | 55 lb (25kgs) coil |
| 3/32" (2.4mm) | 55 lb (25kgs) coil |