Quick Answer

Many E6013 electrodes can run on AC and DC, but the permitted DC polarity and current depend on the exact product and size. Lincoln Fleetweld 37 lists AC and DC±, while ESAB Weld 6013 lists AC and DC+ only. Check the machine’s output, duty cycle and AC open-circuit voltage against the datasheet, then verify the joint and any applicable WPS before ordering.

Key Takeaways

• ESAB Weld 6013 specifies AC and DC+ for its named product.
• Lincoln Fleetweld 37 publishes separate AC and DC rows by diameter.
• A product’s published settings do not override an applicable WPS.

What Does the E6013 Code Establish?

AWS E6013 is a carbon-steel covered-electrode classification under A5.1/A5.1M. It helps shortlist a family; it does not give one amperage dial position or machine guarantee for every brand.

AC alternates direction; DC uses electrode-positive (DC+) or electrode-negative (DC−) connections. A generic “AC/DC” sticker does not establish whether a particular product permits DC−.

What Matters With an AC Welder?

Check the machine’s sustainable output and duty cycle. ESAB Weld 6013 publishes a minimum 50 V AC OCV for its product. That is not a requirement for every E6013 electrode.

Fleetweld 37 lists 75–115 A on AC for its nominal 2.4 mm row and 110–140 A for 3.2 mm. Weld 6013 lists 50–90 A for 2.5 mm and 80–130 A for 3.2 mm. These named-product figures should not be blended into a class-wide range.

What Changes With a DC Welder?

Set leads only to a polarity allowed by the actual rod. Fleetweld 37 lists 100–135 A on DC± for its 3.2 mm size; Weld 6013 lists DC+ but does not list DC−. Sureweld 6013 lists both DC polarities.

Trial the specified joint and position with a qualified operator. Inspect to the job’s criteria, not only bead appearance; retain the accepted machine, product, diameter, polarity and lot details for repeat supply.

What Should the AC/DC RFQ Include?

RFQ checklist:

1. Named product and AWS class: prevent generic-data substitution.
2. Core diameter and rod length: select the correct published row.
3. Required AC, DC+ or DC− modes: expose unsupported polarity.
4. Machine output, duty cycle and AC OCV: check electrical fit.
5. Position and WPS: control the permitted application.
6. Datasheet revision, pack and lot: link trial and shipment.

Buyer FAQ

Does “AC/DC” always mean both DC polarities?

No. Read the named manufacturer’s permitted options.

Can one amperage range cover all E6013 diameters?

No. The current row changes by product and size.

Does the data sheet approve the job automatically?

No. The joint and any WPS still govern acceptance.

Inquiry: Share welder data, polarity and required size through your established inquiry route to request a matching product sheet and sample.