Recommended Amperages for Electrodes by Type and Diameter

Recommended Amperages for Electrodes by Type and Diameter

The recommended amperages for electrodes vary depending on the type and diameter of the electrode. Here are some general guidelines:

• Mild steel electrodes:

  • 1/16 inch diameter: 40-60 amps
  • 3/32 inch diameter: 60-80 amps
  • 1/8 inch diameter: 80-100 amps
  • 5/32 inch diameter: 100-125 amps
  • 3/16 inch diameter: 125-150 amps

• Stainless steel electrodes:

  • 1/16 inch diameter: 30-50 amps
  • 3/32 inch diameter: 50-70 amps
  • 1/8 inch diameter: 70-90 amps
  • 5/32 inch diameter: 90-110 amps
  • 3/16 inch diameter: 110-130 amps

• Cast iron electrodes:

  • 1/16 inch diameter: 40-60 amps
  • 3/32 inch diameter: 60-80 amps
  • 1/8 inch diameter: 80-100 amps
  • 5/32 inch diameter: 100-125 amps
  • 3/16 inch diameter: 125-150 amps

• Aluminum electrodes:

  • 1/16 inch diameter: 30-50 amps
  • 3/32 inch diameter: 50-70 amps
  • 1/8 inch diameter: 70-90 amps
  • 5/32 inch diameter: 90-110 amps
  • 3/16 inch diameter: 110-130 amps

It is important to note that these are only general guidelines and may vary depending on the specific welding project and conditions. It is always best to consult with a welding expert or refer to the manufacturer's recommendations for the specific type and diameter of electrode being used.