Arc Welding Rods

Match the rod type and diameter to the base metal and welding position: use mild steel electrodes (e.g., 6010/6011 for deep-penetration, 6013/7018 for general structural and cleaner welds) and pick a diameter based on current capacity and joint size (smaller diameters for thin sheet, larger for thicker parts)

For sheet metal and thin panels use 1/16"–3/32" (1.6–2.4 mm) rods with lower amperage; for frame and thicker components use 1/8"–5/32" (3.2–4.0 mm) rods with correspondingly higher amperage — consult the electrode packaging for recommended amp ranges and test on scrap first

Keep electrodes dry and stored in a sealed container or rod oven if they are low-hydrogen types (e.g., 7018); avoid moisture, rust, and contamination, and re-bake rods per manufacturer instructions if they become damp

Rutile coatings produce smoother arc and easier starts suited for general-purpose work; basic (low-hydrogen) coatings give stronger, less-cracked welds for structural jobs but require dry storage; cellulose coatings provide deep penetration for vertical/overhead welding

You can use different brands as long as the electrode classification (e.g., 6013, 7018) and material compatibility match; avoid mixing electrode types with different hydrogen levels or incompatible alloys on the same weld without following proper procedures

Use a welding helmet with the correct shade, flame-resistant clothing, welding gloves, proper ventilation or respirator for fumes, and eye/skin protection for bystanders to prevent UV exposure, burns, and inhalation hazards

Low-hydrogen electrodes are typically designated by the suffix in the classification (for example, 7018) and are used for welds that require high toughness and low susceptibility to hydrogen-induced cracking, especially on thick or stressed parts; they must be stored dry and often re-baked before use