Difference Between 7018 and 6010 Welding Rods

The difference between 7018 and 6010 welding rods comes down to arc behavior, penetration, coating type, polarity, storage, and the kind of work each rod is usually chosen for. E6010 is known for a deep digging arc. E7018 is a low-hydrogen rod known for smoother welds on clean steel when it is stored and handled correctly.

Both rods are common in stick welding, but they do not solve the same problem. A 6010 rod can be useful for root passes, pipe-style practice, and situations where deeper penetration is needed. A 7018 rod is often used where a stronger, cleaner, more controlled weld is needed on prepared steel.

Mark Dawson beginner note: do not choose between 7018 and 6010 by strength number alone. The best rod depends on machine output, base metal, fit-up, welding position, storage condition, procedure requirements, and how critical the weld is.

Quick Answer

E6010 is a deep-penetrating stick electrode with a forceful arc, often used on DC machines for root passes, pipe work, and jobs that need strong digging action. E7018 is a low-hydrogen electrode with a smoother arc and slag system, often used on clean steel where strength, bead appearance, and controlled storage matter.

Feature	E6010	E7018
Arc feel	Forceful, digging, fast-freeze	Smoother, steadier, heavier slag
Penetration	Deep	Moderate to strong with proper setup
Common current	Often DC-focused	Often DC+, some rods also AC-rated
Storage	Keep dry and protected	Low-hydrogen storage matters
Beginner fit	Harder arc control	Easier bead appearance, stricter storage

What 6010 Welding Rods Are Best For

E6010 rods are known for deep penetration and a fast-freeze puddle. That means the weld metal solidifies quickly, which can help in root passes and out-of-position work when the welder has enough skill. The arc is not soft or lazy. It digs into the joint and requires active control.

Many welders associate 6010 with pipe welding, root passes, open-root practice, and work where the arc needs to cut through less-than-perfect conditions. That does not mean beginners should use it as a shortcut for dirty metal. Cleaning, fit-up, and safe work habits still matter.

A beginner may find 6010 frustrating at first. Long arc length can make it violent. Wrong machine output can make it run poorly. If your stick welder cannot run 6010 well, the rod may feel impossible even when your technique is improving.

What 7018 Welding Rods Are Best For

E7018 rods are low-hydrogen electrodes commonly used for clean steel welds where strength and consistency matter. They can produce a smooth bead with a steady arc, but they require better storage discipline than many beginner repair rods.

7018 is often chosen for fabrication, structural-style practice, clean plate, stronger welds, and situations where the weld must be more controlled. It is not the right choice for every dirty repair, and it should not be treated casually if the weld is important.

The storage issue matters. Low-hydrogen rods can absorb moisture if mishandled. Damp or damaged 7018 rods may cause weld quality problems and should not be used for critical work. For storage details, read How Should Low Hydrogen Electrodes Be Stored?.

Rod Number Meaning: 6010 vs 7018

The numbers tell part of the story. In E6010, the E means electrode, the 60 points to about 60,000 psi minimum tensile strength, the 1 indicates all-position use, and the final 0 identifies coating/current characteristics. In E7018, the 70 points to about 70,000 psi minimum tensile strength, the 1 indicates all-position use, and the 8 identifies a low-hydrogen style coating/current family.

That classification does not automatically tell you which rod is better. It tells you what kind of electrode you are holding. You still need to match it to the steel, joint, machine, procedure, and safety requirements. For the bigger picture, read Welding Rod Specifications Explained for Beginners.

Penetration Difference

6010 is the deeper digging rod. It is useful when the joint needs an aggressive arc that reaches into the root. That is one reason it is associated with root passes and pipe-style work. It can also be less forgiving if the welder cannot control arc length and travel speed.

7018 does not behave the same way. It can make strong welds, but it is usually not chosen because it has the most forceful digging arc. Its strengths are smoother operation, low-hydrogen weld deposit when handled correctly, and a bead profile that can be easier to manage after practice.

Polarity and Machine Compatibility

Machine compatibility is a major beginner issue. Many 6010 electrodes are commonly run on DC output, and not every small stick welder runs 6010 well. Some machines may run 6011 more easily than 6010. If the rod behaves badly, check the machine manual before blaming only your hands.

7018 is often run on DC electrode positive, though some 7018 rods are designed for AC use as well. The package matters. A rod marked for AC and DC is different from a rod that performs best on a specific current. Always check the label, machine setting, electrode holder lead, and work clamp lead before testing amperage.

Amperage Difference

Amperage depends on rod diameter and brand, but the feel is different even when the diameter is the same. A 1/8 inch 6010 may start around the lower side of the stick rod range, while a 1/8 inch 7018 often starts higher. The exact setting should come from the package and test beads.

If you are comparing 1/8 inch rods, use 1/8 Welding Rod Amperage Chart for Beginners as a starting point. Then tune with scrap metal. One amperage number should not be used for every rod just because the diameter matches.

Arc Feel and Slag Difference

6010 has a sharper, more forceful arc and a fast-freeze puddle. It can feel like it is digging into the joint. Slag is usually lighter than 7018, and the technique often involves tighter arc control and careful manipulation depending on the joint.

7018 feels smoother and has a heavier slag covering. The bead can look cleaner, but slag control matters. If the angle, amperage, or travel speed is wrong, slag inclusion can still happen. A pretty bead is not always a sound weld.

Root Pass vs Fill and Cap Work

One useful way to compare 6010 and 7018 is to think about where they may appear in a multi-pass weld. E6010 is often associated with root pass work because the forceful arc can dig into the joint and help form penetration at the root. That does not make it easy. Open-root welding is a skill of its own, and beginners should learn it under qualified guidance.

E7018 is often associated with fill and cap passes after the joint is prepared and the root is sound. It can build cleaner weld metal when the rod is dry, the joint is clean, and the welder controls slag. In some procedures, the chosen sequence may involve more than one electrode type. The procedure, not preference, decides the correct rod for inspected work.

For home practice, this difference still helps. Use 6010-style practice to understand a more aggressive arc and root-control concepts. Use 7018-style practice to learn smooth travel, slag control, restarts, and bead consistency on clean steel.

Storage Difference

Storage is one of the biggest differences. 6010 should still be kept dry and protected, but 7018 is low-hydrogen and needs stricter moisture control for important welds. Opened 7018 rods may require rod ovens, exposure limits, or procedure-controlled handling on critical jobs.

For casual practice, keep both rods clean, dry, labeled, and away from oil or water. For critical welds, do not guess. Follow the rod manufacturer, job procedure, code requirements, and qualified welding guidance.

Dirty Metal Myth

Because 6010 has a digging arc, beginners sometimes hear that it is the rod for dirty metal. That idea can go too far. 6010 may tolerate certain imperfect conditions better than a smooth low-hydrogen rod, but dirt, oil, paint, rust, moisture, and coatings can still cause defects and fume hazards.

Cleaning is still part of good welding. Grind or wire brush the joint when practical, remove coatings safely, and avoid unknown materials. A rod that can dig is not permission to weld through contamination. The cleaner and better fitted the joint is, the easier it is to judge your actual technique.

7018 is less suited to dirty repair guessing. It likes clean steel, correct fit-up, and dry storage. If a repair is important and the steel condition is poor, get proper training or inspection before deciding which rod to use.

Which Rod Is Easier for Beginners?

Many beginners find 7018 easier to make look smooth, but 7018 is not always easier overall because storage and slag control matter. A beginner who uses damp 7018 or the wrong polarity can still get poor results. The rod may look professional when it is right, but it punishes casual handling.

6010 is usually harder for beginners because the arc is more aggressive and the machine needs to run it properly. It is valuable to learn, but it is not always the best first rod. Many beginners learn basic stick control with 6011, 6013, or 7018 on clean scrap before trying 6010 root-style practice.

When to Choose 6010

• You need a deep digging arc.
• You are practicing root passes with proper training.
• Your machine runs 6010 well.
• The joint calls for fast-freeze puddle control.
• You understand tight arc length and travel control.
• The job procedure allows the rod.

Choose 6010 for its behavior, not because it sounds tougher. It is a specific tool. On the wrong machine or in inexperienced hands, it can make practice harder than necessary.

When to Choose 7018

• You are welding clean mild steel.
• You need a low-hydrogen electrode handled correctly.
• You want a smoother bead after proper practice.
• The weld requires stronger controlled deposition.
• You can store the rod dry.
• The procedure or instructor calls for 7018.

Choose 7018 when the metal is prepared and the rod has been stored correctly. Old, damp, cracked, oily, or mystery 7018 rods should stay away from important welds.

Simple Practice Plan

Start with clean mild steel coupons in flat position. Run several short beads with 7018 at a package-approved setting and focus on arc length, travel speed, restarts, and slag removal. After that, try 6010 only if your machine supports it and the rod runs correctly.

Keep notes for each rod. Write down the diameter, amperage, polarity, steel thickness, and what the bead looked like after cleaning. The notes will show why 6010 and 7018 feel different even when both rods are technically all-position electrodes.

Compare the cleaned beads, not the slag-covered bead. Look for tie-in at the edges, undercut, porosity, overlap, slag pockets, bead consistency, and whether the arc felt controllable. A smooth-looking 7018 bead can hide slag problems, and a rougher 6010 bead can still teach valuable root-control habits.

Common Mistakes

• Using 6010 on a machine that does not run it well.
• Assuming 7018 is always better because the number is higher.
• Running either rod on the wrong polarity.
• Using damp 7018 on important work.
• Trying 6010 before learning basic arc length control.
• Welding dirty steel and blaming the rod.
• Ignoring storage and amperage instructions on the package.

A good comparison test is simple: use clean scrap, the same diameter, the correct polarity, and a reasonable amperage range for each rod. Run short beads, clean them, and compare arc feel, bead shape, slag, spatter, and tie-in.

Safety Notes

Stick welding can involve electric shock, arc flash, fumes, hot slag, fire, burns, and flying slag during cleanup. Use a proper welding helmet, safety glasses, dry gloves, flame-resistant clothing, ventilation, secure clamping, and a fire-safe workspace.

Beginner practice welds should not be used for structural, vehicle, trailer, lifting, pressure, or workplace repairs without qualified training and inspection. Rod choice is only one part of weld safety. Joint design, procedure, material identification, preparation, and inspection matter too.

Review OSHA welding hazards guidance, OSHA welding fume guidance, and AWS safety resources. For basic setup safety, read Arc Welding Safety.

FAQ

Is 7018 stronger than 6010?

7018 has a higher classification strength number than 6010, but the final weld strength depends on the material, joint design, preparation, procedure, amperage, technique, storage, and inspection.

Does 6010 penetrate deeper than 7018?

Yes, 6010 is generally known for deeper, more forceful penetration. 7018 can make strong welds, but it is not usually chosen for the same digging arc behavior.

Can beginners use 6010 rods?

Beginners can practice with 6010 if their machine runs it well, but it is often harder to control than smoother rods. Learn arc length, travel speed, and safety basics first.

Do 7018 rods need special storage?

Yes. 7018 is a low-hydrogen rod, so dry storage and correct handling matter, especially for critical or procedure-controlled welds.

Which rod should I learn first, 6010 or 7018?

Many beginners are better served by learning basic stick control on clean scrap before choosing 6010 or 7018 for serious work. If choosing between the two, 7018 may look smoother, while 6010 teaches a more aggressive digging arc.

Final Advice

The difference between 7018 and 6010 welding rods is not just strength. 6010 is a deep-penetrating, forceful rod that needs the right machine and technique. 7018 is a low-hydrogen rod for cleaner, more controlled welds when stored properly. Choose the rod that matches the job, not the one that sounds better on paper.