Welding is all about skills. Skillful welders are considered the creators as they can turn 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.
So if it’s harder for you to choose 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 are made of mild steel, but work intensity depends upon the strength, which is different for both. Stay tuned to this article to get further information about the 6013 vs. 7018 welding rods.
6013 vs. 7018 Welding Rods
Welding rods are essential equipment for welding as they create and turn the materials into their useful state. By comparing the most commonly used welding rods, like 6013 and 7018, we know that both have different usage, numbers, strengths, and the material from which they are made. Both rods are used by professional welders and beginners, contributing to their creativity and making the welding process even more accurate.
6013 Welding Rod
Professionals and beginners commonly use this welding rod for general purposes in the industry. These rods are 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 with low open-circuit voltage.
6013 welding rods can be used for welding shipbuilding, vehicles, over-machined buildup, light fabrication, etc. The steel of these electrodes is covered with Titania Potassium which helps produce a spray-type arc. The tensile strength of this rod is 60,000 psi while the yield strength is 48000 psi, which 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 and can be used with any machine, either small or large. To increase the shelf life of these rods, store them in moisture-proof boxes and avoid their contact with water.
7018 Welding Rod
This rod is very easy to use. The electrode is medium penetrated, having the properties more visible at low temperatures 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 polish while melting the metals, these electrodes are used that are DC-based. The electrode being more drag rod is also called a 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, equipment, pressure vessels, fabrication, etc.
This is also called a low-high rod as a smooth and stable arc can be achieved by using it in a 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 which 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 the best suitable.
Position Of Welding Rods
The position of welding of both rods is different. A third number of the electrodes indicates the position of these rods. 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.
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.
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