Best MIG Wire for Mild Steel: Top 5 Picks

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Looking for the Best MIG Wire for Mild Steel?

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Welding is an indispensable part of most factories, industries, and even our homes and offices. When we rely on our skills to get our work done in today’s age and time, isn’t it crucial to have useful direction from appropriate resources to help you through your tasks?

When it comes to welding, selecting the correct filler wire for welding is one of the most critical aspects. Therefore, we have decided to help you through the process of choosing the best MIG Wire for mild steel so that you do not miss out on any worthy product in your search.

Best MIG Wire for Mild Steel: Our Top 5 Picks

#1 WeldingCity ER70S-6 Mild Steel MIG Welding Wire | Best of All

This is a copper-coated wire used in MIG welding machines. Higher levels of manganese and silicon provide you with quality welding at low costs and are therefore highly preferred. Its additional deoxidizers give you a better wetting and flatter beads.

This wire generally consists of argon and carbon dioxide but can also be used with 100% carbon dioxide. It is resistant to moisture and has an 8-inch spool. The diameter of the wire is 0.030 inches, along with a weight of 11lbs. It’s wrapped in plastic film to deliver you with the best product.


  • It’s cost-friendly
  • Has a smooth feed without issues of snags or jerks.
  • Plastic wrapping provides protection.


  • Possible product damage in rare cases

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#2 Inefil ER70S-6 Carbon Steel MIG Solid Welding Wire | Lowest Splatter

The ideal for carbon-manganese and pure carbon steel due to the tensile strength of 510 MPa, which makes it efficient for single or multi-pass welding purposes. High levels of silicon and manganese produce high-quality welds with fluidity, smooth beads, and post-weld grinding.

It has a high feed ability, easy usage, no porosity, low spatter level, and a good bead appearance.  Moreover, the CO2 or Ar+CO2 is used as a shielding gas in the wire. Its spool is 10.6lb and has a 0.030inch diameter.

It has a 10.6lb spool and a 0.030-inch diameter. Made with superior quality material, this wire is highly approved for various projects, including construction and automobile repair.


  • It’s performance-friendly
  • The wire is smooth and experiences low jerks and snags
  • It also produces a minimum spark



  • You might experience some issue with the soot of the copper coating.

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#3 TGB ER70S-6 MIG Mild & Low Alloy Steel Welding Wire | Supreme Performance

The Best MIG Wire for Sheet Metal applications and structural steel plates with copper-plating. It has highly efficient manganese and silicon deoxidizers.

You can use 100% CO2 shielding gas at higher currents, which give even beads and clean up after welding is zero. It weighs 33lb and a 0.035inch diameter.


  • The wire has supreme performance
  • It endures heavy usage
  • It saves a lot of time and effort



  • The plastic spool tends to break during transit sometimes but special care is provided to keep it intact

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#4 Hobart H305406-R22 Carbon Steel Solid Welding Wire | Great for Construction Work

A multi-purpose welding wire made up of carbon steel has no porosity composition and deoxidizers that make an excellent weld.

It has a 10lb spool and a 0.030inch diameter. This wire provides easy wire feed, minimum splatter, smooth beads, and easy cleanup.


  • It is useful for a variety of welding applications.
  • The feed is consistent without the absence of snags and jerks.


  • Delivery damages can occur

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#5 Harris E70S6F8 ER70S-6 MS Spool with Welding Wire | Long-Lasting


A large number of deoxidizers in this makes for more wetting, which gives flatter beads.

100% CO2 can combat rust and dirt to yield deeper penetration. It is also used with 75/25 Argan and carbon dioxide. The spool weighs 33lb and has an a0.035inch diameter.


  • The wire is long-lasting
  • It’s an affordable choice of welding wire
  • It produces clean results



  • It gives a minutely rough finish.
  • Sometimes the spool gets damaged while delivering.

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Frequently Asked Questions (FAQs)

Q: What material can be welded with this wire?

A: This is a mild steel welding wire.

Q: Which is the recommended shielding gas?

A: Ar+Co2 is ideal for shielding gas in a 75/25 ratio or an 80/20 ratio, but 100% CO2 is preferred.

Q: How to choose the perfect welding wire for my welder?

A: A perfect wire has no feeding issues, less splatter, does a clean job. Choose the best MIG wire for mild steel that is equal or more than the tensile strength of the metal.


All these wires are high-quality products with positive reviews from customers and can be trusted to provide a superior welding experience. They are also cost-friendly, but that does not compromise the efficiency of the product.

In my opinion, the WeldingCity ER70S-6 Mild Steel MIG Welding Wire is the Best MIG Wire for Mild Steel that can provide you great results.

About the Author Gregory

Hi, my name is Gregory! I have been welding practically all of my life and love it. As I have gotten older I have started to weld less and less, so in order to continue my love for welding I created this website. I like to write about my experiences and help you all become welders. I hope that you enjoy the site!

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