Postalloy® 301 is a high strength, ductile, crack resistant welding alloy specifically designed for welding problem steels such as, low alloy, high carbon or crack sensitive tool steels. Ideal for welding dissimilar steels- low alloy, spring steels, carbon steels, tool steels. The benefits of Postalloy® 301 include:
• Excellent joining characteristics - With the combination of balanced alloy chemistry and high strength, crack resistant weld deposits, the capability to weld dissimilar problem steels is outstanding.
• Carbon has no adverse effects - Carbon, the cause of most problems associated with weld cracking and hard spots, is rendered harmless.
• Acts as a shock absorber during operation - Since Postalloy® 301 does not respond to heat-treatment and remains ductile, it has the ability to withstand heavy impact or shock loading.
Flux-coated electrode
Gear tooth build-up
Shovel teeth and blades
Wear Plates
Repair cracked manganese castings
Grousers
Heat-treating parts
Cracked steel casings
Frog repair
| Diameter | Amps |
|---|---|
| 3/32" (2.4mm) | 50-80 |
| 1/8" (3.1mm) | 80-125 |
| 5/32" (4.0mm) | 100-150 |
Clean weld area of contaminants. Remove any defective or fatigued weld metal. Bevel heavy sections 90°. Tilt the electrode about 15° in the direction of travel and use the lowest amperage possible. For certain high alloy steels, a preheat of 300-400°F (149-204°C) is recommended. Hold a short arc and use stringer beads. Peen to reduce stresses. Allow to cool and remove slag.
Alternative Wire: Postalloy® 301-SPL, Postalloy® 301-FCG