| E6013 | 60,000 psi (approximately 414 MPa) | AC or DC, depending on the electrode specification | All positions; check the electrode diameter and product data sheet | General-purpose mild-steel work, light fabrication, sheet metal, and repairs where a smooth bead is desired | Beginner-friendly arc starting and relatively easy slag removal. Often a practical choice for thinner material, but correct fit-up and heat control are still important. |
| E6011 | 60,000 psi (approximately 414 MPa) | AC or DC electrode positive, as specified by the manufacturer | All positions | Mild-steel repairs, rusty or less-than-clean surfaces, and work where deeper penetration is useful | Useful for maintenance and less-than-ideal surface conditions. Its forceful arc and faster-freezing slag can take practice to control. |
| E6010 | 60,000 psi (approximately 414 MPa) | DC electrode positive (DCEP) | All positions, including vertical-down applications where permitted by the procedure | Root passes and open-root pipe welding, plus demanding mild-steel repair work | Produces a forceful, deeply penetrating arc. Generally better suited to experienced welders and compatible DC power sources. |
| E7018 | 70,000 psi (approximately 483 MPa) | AC or DC electrode positive, according to the specific classification and product data sheet | All positions except vertical-down in typical use | Structural and general fabrication work requiring low-hydrogen electrodes and higher-strength weld metal | A common professional choice. Requires clean, dry electrodes and sound storage practices; low-hydrogen handling requirements should be followed. |
| E7024 | 70,000 psi (approximately 483 MPa) | AC or DC electrode positive, depending on the product | Flat and horizontal fillet positions | High-deposition welding on suitable mild-steel joints, such as long flat seams and horizontal fillets | Deposits metal quickly and can produce a smooth bead, but its position limits make it unsuitable for most vertical or overhead work. |
| E308L-16 | 70,000 psi (approximately 483 MPa), minimum classification value | AC or DC electrode positive, as specified for the product | Commonly used in all positions except vertical-down; confirm the product data sheet | Joining common 18% chromium–8% nickel stainless steels, including many 304L-type applications | Specialized stainless-steel electrode. Select filler metal for the base-metal grade and service conditions, and control heat input to limit distortion. |
| E312-16 | 85,000 psi (approximately 586 MPa), minimum classification value | AC or DC electrode positive, as specified for the product | Commonly used in all positions except vertical-down; confirm the product data sheet | Dissimilar-metal joints and some difficult-to-weld steels where a highly crack-resistant weld deposit is appropriate | A specialized electrode, not a universal repair solution. Verify compatibility with the base metals, design requirements, and qualified welding procedure. |