Weld Mold® 545
Expressly made for welding both wrought and cast steel structures. Similar in composition to the 540 but with increased hardness and wear resistance.
Applications
For heavy buildup and overlays on equipment that requires high impact and wear properties at temperatures up to 1000°F. May be used on certain forge or press die applications.
Procedure
Remove all defects; heat checks, spalls, and cracks. Preheat the unit to a minimum of 800°F. Maintain this temperature during welding. Utilize short arc length. Peening is necessary when filling in small cavities. Peen after depositing each pass. Peening is not necessary when welding large areas such as complete impressions except on the final pass. After welding, cool the unit in still air to approximately 350°F. This is necessary to produce uniform weld hardness. When the cooling temperature is reached, immediately charge dies into a furnace at 1050°F and temper for 12 to 16 hours. On rams and sow blocks, etc., stress relieve at 1150°F. for 12 to 16 hours. Stress relieve hammer bases at 1150°F at one hour per inch of thickness at temperature. Remove the unit from the furnace and cool in still air to room temperature.
SMAW - DC+
FCAW - DC+, 100% CO2 or 75%-25% CO2
Technical Data
- Available Processes: SMAW and FCAW
- Hardness: Rockwell C 40-45
- Machinability: Tough
- Alloy Type: Nickel-Chromium-Molybdenum
