6013 Vs 7018 Welding Rods – A True Comaprison!

Welding is all about skills. Welders that are skillful are considered to be the creators as they have the ability to turn the useless metal material into its useful and productive form. And this is only possible by using good quality welding rods. The most commonly used welding rods by professional welders and beginners are 6013 and 7018 welding rods.

So if it’s harder for you to make a choice between 6013 and 7018, then by reading this article till the end, you will be able to make the right choice between the two welding rods. While being drag rods, both of them produce a very smooth arc with less amount of spatter. Both of them are made of mild steel but work intensity depends upon the strength which is different for both. To get further information about the 6013 vs 7018 welding rods, stay tuned to this article.

6013 vs 7018 Welding Rods

Welding rods are a very essential equipment used for welding as they are responsible for creating and turning the materials into their useful state. By comparing the most commonly used welding rods like 6013 and 7018, we get to know that both have differences regarding their usage, numbers, strengthens, and the material from which they are made. Both of the rods are used by professional welders as well as beginners that contribute to their creativity, making the process of welding even more accurate.

6013 Welding Rod

This welding rod is commonly used by professionals and beginners for general purposes in the industry. These rods are made of mild steel that can be used for all welding purposes. The best part of these rods is that they have the ability to produce a soft arc with minimal spatter loss. These welding rods do not consume much power because they operate on AC power having low open-circuit voltage.

6013 welding rods can be used for welding shipbuilding, vehicles, a buildup of over machined, light fabrication, etc. The steel of these electrodes is covered with Titania Potassium which helps in producing an arc that is spray type. The tensile strength of this rod is 60,000 psi while the yield strength is 48000 psi that is suitable for lighter welding projects. Welding in a vertical position is done by this welding rod due to its electrode’s swift freezing slag.

Moving the 6013 welding rod in a circular motion is the technique. Another loved part of this rod is that it can be operated at any type of current. This welding rod is highly adaptable, having the ability to be used with any machine either small or large. For increasing the shelf life of these rods, store them in moisture-proof boxes and avoid their contact with water.

6013 vs 7018 Welding Rods

7018 Welding Rod

This rod is very easy to use. The electrode is medium penetrated having the properties more visible at low temperature below zero. This electrode can also be used comfortably on dirty surfaces as well. The tensile strength of this rod is 70,000 psi while the yield strength is 58000 psi. The penetration property of this rod is not very deep and can be used for industrial welding.

For having a high quality of polish while melting the metals, these electrodes are used that are DC-based. The electrode being more drag rod is also called low hydrogen rod having many other mechanical properties, making the X-ray quality welding while being crack resistant. This 7018 electrode is used for heavy-duty welding like boilers, heavy-duty equipment, pressure vessels, fabrication, etc.

This is also called low high rod as a smooth and stable arc can be achieved by using it in dragging motion across the metal. Being strong due to high strength, this rod can suitably work with thick metal sheets while producing smooth arcs. These rods are sensitive to moisture that can reduce their durability. This rod is specifically used by professional welders as it is of high quality and also is on the expensive side. If high-quality welding is needed, then 7018 welding rods are best suitable.

Position Of Welding Rods

The position of welding of both the rods is different. The position of these rods is indicated by a third number of the electrodes. They can be used in any position like vertical, horizontal, overhead, incline, etc. So for a better understanding of the position of each rod, focus on the third digit of the rods which directs the welder to perform welding accurately.

Position Of Welding Rods

Main Differences Between 6013 And 7018 Welding Rods

  • As both the rods are made of mild steel which is common but the difference lies in the wire coating. 6013 has the Titania Pottasium coating whereas 7018 has low hydrogen coating. This shows the polarity and flux coating of these rods.
  • The welding currents of both rods are different. 7018 rods are best operated at DC+, AC, and DC-. whereas 6013 welding rods are much more suitable with DC+ and AC welding current.
  • Moving towards the tensile strength, both of the welding rods have differences in strength. 6013 has 60000 psi whereas 7018 provides a minimum tensile strength of 70000 psi.
  • Right current for the right welding rod is very important to consider in a situation where both of the rods have different polarities. This polarity makes sure that the right type of current is conveyed to the right type of rod.
  • Both of them have medium penetration and both of the rods are called drag rods due to their similar motion. The best technique of using both of the electrodes in a better way is to use them in a circular motion while creating joints.

FAQs

What is the 6013 welding rod is used for?

This rod is commonly used by professionals and beginners. This rod with welding medium gauge steel is used for thin metal sheets, providing them shallow or light penetration.

What is the 7018 welding rod is used for?

This rod is used for carbon steel. This is a heaving duty rod used in industries that produce a high-quality arc. As its tensile strength is 70000 psi, that enables it to be used for heavy welding projects.

Is 6013 or 7018 stronger?

As the strength of 7018 is greater than 6013, that can be used for heavy welding projects and is much stronger than 6013.

Do the 7018 rods need to be heated?

Yes, for the proper functioning of rods, they need to be heated first. But there are different standards of heat for different rods. So the welder has to heat the rod accordingly.

What does 18 mean in 7018 welding rods?

In 7018, the first two numbers i-e 70 indicated that this welding rod is strong enough to be used for heavy-duty welding projects. While the next number 1 indicated that the rod can be used in any direction whereas 18 indicated DC current or low hydrogen.

Do welding rods have a shelf life?

Welding rods do have a shelf life of 2-3 years if they are kept in required conditions. The shelf life of the rods can be decreased if they are exposed to moisture.

Conclusion

Welding rods are the most important part of the welding process. But there are different rods, having different specifications and properties. The two most commonly used rods discussed here are 6013 and 7018. These rods are different from each other. 6013 welding rod is used for light welding projects whereas 7018 welding rods are used for heavy-duty welding projects.

Moving towards penetration capability, 6013 is a versatile rod that has the ability to penetrate deeper than that of the 7018 welding rod. If quality is concerned, then 7018 welding rod is of high quality, producing a much more smooth and stable arc. Whereas 6013 welding rod is also capable of creating a smooth arc with minimal spatter. Hence both of the rods are best and are used by professionals and beginners for welding purposes.

About Dave Walker

Dave Walker, a professional welder who has been welding from an early age. Now aims to help others by making them learning skills and finding them new opportunities. He has written for many welding blogs and helped many pursue their welding goals by helping them in choosing the best welding tools of the time.

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