Postalloy® 305
Postalloy® 305 is a non-cracking electrode designed to weld low alloy, high strength steel such as T-I, Hy-90, Hy-100, SSS-100. An all-position electrode that provides crack-free welds under highly stressed conditions with outstanding elongation and ductility. Easy slag removal.
Specifications
Product Type
- Flux-coated Electrode
Applications
- Used to fabricate tanks, containers, covers, and high strength pipe.
- Use for welding low alloy steels containing manganese, nickel, molybdenum, and chromium such as I-beams, angle iron, scaffolding and super structures.
- Weldments can be used as welded or stress relieved.
Weld Deposit Properties
- Additional:
- Also available as a flux-cored wire - Postalloy® 3044-FCG
- Tensile strength:
- Up to 113,000 psi
- Yield strength:
- Up to 104,000 psi
- Elongation:
- 20%
Welding Parameters
Current Type: DC Electrode Positive , AC
| Amps | Diameter |
|---|---|
| 100-150 | 1/8" (3.2mm) |
| 120-210 | 5/32" (4mm) |
| 200-275 | 3/16" (4.8mm) |
Welding Procedure:
Preheat is unnecessary when welding low carbon steels. A preheat of 400-600 °F (204-316 °C) is recommended when joining heavy sections to thin sections and low alloy or higher carbon steels are welded. Maintain a short arc and use stringer or weave beads. Allow deposit to cool before chipping off slag. Heat to 1025 °F (552 °C) and maintain for 1 hour to stress relieve.
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| 1/8" (3.2mm) | Resealable Plastic Box |
| 5/32" (4mm) | Resealable Plastic Box |
| 3/16" (4.8mm) | Resealable Plastic Box |