# E6011 welding electrode

Cellulosic E6011 stick electrodes: classification, product-specific polarity and current, material selection, storage and handling.

Reviewed: 2026-11-01

Tags: consumables, welding, electrodes

Lincoln's **Fleetweld 180** sheet, **April 2026**, lists **65–120 A on AC** and **60–110 A on DC±** for **3.2 mm (1/8 in)** E6011. The product is designed for low-open-circuit-voltage AC use. Check power-source compatibility and the qualified joint procedure before substituting for another cellulosic electrode. [Lincoln Electric, *Fleetweld 180*, publication C2.10.16, issue April 2026](https://ch-delivery.lincolnelectric.com/api/public/content/df937311af4d480086f19c118e9c3221?v=a51d8256)

## Identity and classification

E6011 is a covered SMAW electrode. In the classification, E means electrode, 60 gives the 60,000 psi minimum weld-metal tensile class, and 1 denotes all-position use. The final digit describes covering and current characteristics. [Miller, *8 Questions About Stick Welding Rods Answered*, 17 April 2024](https://www.millerwelds.com/en-us/resources/knowledge-hub/stick-welding/stuck-on-stick-easy-answers-to-not-so-simple-questions-about-common-electrodes)

Fleetweld 180 lists AWS A5.1 E6011 and CWB/CSA E4311 without an AWS edition. It is a mild-steel cellulosic electrode. Verify the ordering edition and procedure limits. [Lincoln Electric, *Fleetweld 180*, publication C2.10.16, issue April 2026](https://ch-delivery.lincolnelectric.com/api/public/content/df937311af4d480086f19c118e9c3221?v=a51d8256)

## Cellulosic covering and arc behavior

The covering is functional rather than packaging. Miller explains that flux reactions produce shielding gas, form protective slag and supply arc-stabilizing ingredients. Consequently, damage or inappropriate conditioning of the covering can affect performance even when the steel core remains intact. [Miller, *8 Questions About Stick Welding Rods Answered*](https://www.millerwelds.com/en-us/resources/knowledge-hub/stick-welding/stuck-on-stick-easy-answers-to-not-so-simple-questions-about-common-electrodes).

Hobart identifies its **335A** as cellulosic, with penetrating characteristics and a stable arc, intended primarily for AC but also usable with DC. Its listed base-metal category is mild steel. This is a bounded product description: the ability to handle some coated steel does not prove that an unknown coating or damaged component is suitable to weld. [Hobart Brothers, *Hobart 335A Product Details*](https://www.hobartbrothers.com/product/product-details/hobart-335a/).

Cellulosic electrodes differ fundamentally from low-hydrogen consumables. Hobart's pipeline guidance explains that cellulose breaks down in the arc and contributes carbon, hydrogen and oxygen to the molten system. Moisture deliberately present in the covering helps produce the intended arc characteristics; excessive drying changes that behavior and chemistry. The same guidance places EXX10 and EXX11 electrodes in the cellulosic family. These observations explain the storage distinction; they do not authorize E6011 for an arbitrary pipeline grade or service. [Hobart Brothers, *Understanding the Sources and Remedies of Hydrogen-Assisted Cracking in Transmission Pipeline Applications*](https://www.hobartbrothers.com/resources/technical-articles/the-hydrogen-problem-understanding-the-sources-and-remedies-of-hydrogen-assisted-cracking-in-transmission-pipeline-applications/).

## Polarity, diameter and a bounded operating example

Check the exact product's current recommendation. Hobart 335A specifies **AC or direct-current electrode positive (DCEP)**. Its technical sheet identifies revision **230602**, replacing 201105. Do not expand that product recommendation to DC electrode negative merely because another E6011 product supports it. [Hobart Brothers, *Hobart 335A Technical Data Sheet*](https://www.hobartbrothers.com/wp-content/uploads/hobart-catalog/datasheets/Hobart335A.pdf).

Lincoln's April 2026 Fleetweld 180 sheet gives the following typical ranges for its **1/8-inch [3.2 mm]** electrode:

| Product and diameter | Listed polarity | Typical current range |
|---|---|---:|
| Fleetweld 180, 1/8 inch [3.2 mm] | AC | 65–120 A |
| Fleetweld 180, 1/8 inch [3.2 mm] | DC± | 60–110 A |

The sheet lists AC first as preferred. These are product/diameter ranges, not a universal E6011 recipe. Its mechanical-property data are identified as all-weld-metal results under prescribed testing, with an explicit warning that actual weldments can differ with procedure, plate chemistry, temperature and design. [Lincoln Electric, *Fleetweld 180*, C2.10.16](https://ch-delivery.lincolnelectric.com/api/public/content/df937311af4d480086f19c118e9c3221?v=a51d8256).

## Distinction from E6010 and low-hydrogen types

Miller describes E6010 as a DC electrode with a tight, deeply penetrating arc. The similarity of the first three digits does not make it interchangeable with an AC-capable E6011 product. Select against power-source capability and the actual electrode instructions, including the specified DC polarity. [Miller, *Factors for Selecting the Right Stick Electrode*](https://www.millerwelds.com/en-US/resources/knowledge-hub/stick-welding/factors-for-selecting-the-right-stick-electrode).

Low-hydrogen designations such as EXX15, EXX16 and EXX18 address a different consumable family. Hobart emphasizes their storage and hydrogen-control requirements separately from cellulosic products. Do not replace a specified low-hydrogen electrode with E6011 merely because both strike an arc on the base metal. Hydrogen-assisted cracking considerations depend on steel susceptibility, restraint and thermal history as well as the consumable. [Hobart Brothers, *Hydrogen-Assisted Cracking in Transmission Pipeline Applications*](https://www.hobartbrothers.com/resources/technical-articles/the-hydrogen-problem-understanding-the-sources-and-remedies-of-hydrogen-assisted-cracking-in-transmission-pipeline-applications/).

Material selection also requires strength, chemistry, joint geometry and service conditions. Miller calls for checking specifications in critical applications and considering low temperature, high temperature and shock loading. A “repair” label or a penetrating arc cannot establish fitness for an unidentified casting, high-strength steel, pressure component or safety-critical part. Use the approved welding procedure and known material identification. [Miller, *Factors for Selecting the Right Stick Electrode*](https://www.millerwelds.com/en-US/resources/knowledge-hub/stick-welding/factors-for-selecting-the-right-stick-electrode).

## Storage and conditioning

Follow the specific product instructions. Hobart 335A's sheet says dry storage at room temperature, cautions against humidity below 50%, prohibits oven storage above **130 °F [54 °C]**, and lists reconditioning as **not recommended**. That lower-humidity caution is important: “keep dry” does not mean removing all moisture from a cellulosic covering. The 130 °F figure is a storage ceiling in this product sheet, not a baking recommendation. [Hobart Brothers, *Hobart 335A Technical Data Sheet*, revision 230602](https://www.hobartbrothers.com/wp-content/uploads/hobart-catalog/datasheets/Hobart335A.pdf).

Lincoln likewise places Fleetweld 35, 35LS and 180 E6011 products in its fast-freeze group and does not recommend rebaking. Its storage guide identifies noisy arc/high spatter, rusty core wire at the holder end and coating blisters as possible excessive-moisture indicators. These are inspection clues rather than permission to restore damaged stock by an improvised oven cycle. Keep the product identity with opened stock and obtain supplier disposition instructions for compromised material. The guide footer identifies **MC22-140, December 2022**. [Lincoln Electric, *Storing and Redrying Stick Electrodes*](https://ch-delivery.lincolnelectric.com/api/public/content/c9885a12d37149b985327956ca3c9e97?v=d24abe95).

## Handling and welding exposure

The exact-product **Hobart 335A SDS**, product code S1122, version 1.0, revised **8 January 2026**, distinguishes the solid supplied product from hazards during welding. It warns that fume composition depends on the electrode, base metal, coatings and process; the ingredient list is not the composition of the inhaled fume. Galvanizing, paint and other surface materials therefore remain relevant even when an electrode is marketed for coated-steel work. [Hobart Brothers, *335A Safety Data Sheet*, sections 1–3](https://www.hobartbrothers.com/wp-content/uploads/hobart-catalog/msds/Hobart_335A_S1122_V1_NA_EN.pdf).

The SDS calls for ventilation/local exhaust adequate to control exposure, appropriate welding eye and body protection, hygiene and avoiding dust generation during handling. Apply those controls to the actual workspace and materials; no universal ventilation rate or respirator selection follows from the E6011 classification alone. [Hobart Brothers, *335A Safety Data Sheet*, sections 7 and 8](https://www.hobartbrothers.com/wp-content/uploads/hobart-catalog/msds/Hobart_335A_S1122_V1_NA_EN.pdf).