Electrodes ending in 4 will work with what polarity?

Electrodes ending in 4 will work with what polarity?

• A. DCSP
• B. DCRP
• C. AC
• D. DCEN

Answer: (B)

The number ending on an electrode code tells you the recommended current polarity. For electrodes that end in 4, the coating and flux are designed to perform best with direct current reverse polarity. That means you should use DC with the electrode polarity reversed (DCRP) so the arc remains stable and slag works properly. AC isn’t the intended option for these electrodes, and straight polarity (DCSP or DCEN) isn’t the polarity they’re designed to run with. So, the best match for electrodes ending in 4 is Direct Current, Reverse Polarity.

The number ending on an electrode code tells you the recommended current polarity. For electrodes that end in 4, the coating and flux are designed to perform best with direct current reverse polarity. That means you should use DC with the electrode polarity reversed (DCRP) so the arc remains stable and slag works properly. AC isn’t the intended option for these electrodes, and straight polarity (DCSP or DCEN) isn’t the polarity they’re designed to run with. So, the best match for electrodes ending in 4 is Direct Current, Reverse Polarity.