Best MIG Wire for Mild Steel 2021: Top 5 Picks

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Looking for the Best MIG Wire for Mild Steel?

In a rush? Check out the top pick here:

WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.030" (0.8mm) 8"-spool
  • Premium quality mild steel gas-shielding MIG welding wire ER70S-6 11-lb spool. Copper coated welding wire for GMAW welding process with shielding-gas CO2 or Ar/CO2 mixed gas.
  • Conformed to AWS A5.18/ASME SF A5.18/ER70S-6; 11-lb net weight of welding wire; 8-in spool with 2-in center hole; spool wrapped in moisture-resistant plastic film.
  • Wire diameters available: 0.023" (0.6mm), 0.030" (0.8mm), 0.035" (0.9mm) and 0.045" (1.2mm).
  • Typical element content (wt%) in product: C=0.08; Mn=1.89; Si=0.83; S=0.019; P=0.021; Cu=0.24; Fe=balance.
  • U.S. based welding and hardware supplier. Strong technical support with experienced customer service to address buyer's any question.

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 Seller
WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.030" (0.8mm) 8"-spool
Editor Choice
INEFIL ER70S-6 .030-Inch on 10-Pound Spool Carbon Steel Mig Solid Welding Wire
Best Budget
ER70S-6 - MIG Mild & Low Alloy Steel Welding Wire - 33 Lb x 0.035"
WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.030" (0.8mm) 8"-spool
INEFIL ER70S-6 .030-Inch on 10-Pound Spool Carbon Steel Mig Solid Welding Wire
ER70S-6 - MIG Mild & Low Alloy Steel Welding Wire - 33 Lb x 0.035"
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Best Seller
WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.030" (0.8mm) 8"-spool
WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.030" (0.8mm) 8"-spool
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Editor Choice
INEFIL ER70S-6 .030-Inch on 10-Pound Spool Carbon Steel Mig Solid Welding Wire
INEFIL ER70S-6 .030-Inch on 10-Pound Spool Carbon Steel Mig Solid Welding Wire
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Best Budget
ER70S-6 - MIG Mild & Low Alloy Steel Welding Wire - 33 Lb x 0.035"
ER70S-6 - MIG Mild & Low Alloy Steel Welding Wire - 33 Lb x 0.035"
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Best MIG Wire for Mild Steel: Our Top 5 Picks

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

WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.030" (0.8mm) 8"-spool
  • Premium quality mild steel gas-shielding MIG welding wire ER70S-6 11-lb spool. Copper coated welding wire for GMAW welding process with shielding-gas CO2 or Ar/CO2 mixed gas.
  • Conformed to AWS A5.18/ASME SF A5.18/ER70S-6; 11-lb net weight of welding wire; 8-in spool with 2-in center hole; spool wrapped in moisture-resistant plastic film.
  • Wire diameters available: 0.023" (0.6mm), 0.030" (0.8mm), 0.035" (0.9mm) and 0.045" (1.2mm).
  • Typical element content (wt%) in product: C=0.08; Mn=1.89; Si=0.83; S=0.019; P=0.021; Cu=0.24; Fe=balance.
  • U.S. based welding and hardware supplier. Strong technical support with experienced customer service to address buyer's any question.

WeldingCity 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.

WeldingCity ER70S-6 Mild Steel MIG Welding Wire Pros
  • It’s cost-friendly
  • Has a smooth feed without issues of snags or jerks.
  • Plastic wrapping provides protection.
WeldingCity ER70S-6 Mild Steel MIG Welding Wire Cons
  • Possible product damage in rare cases

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

INEFIL ER70S-6 .030-Inch on 10-Pound Spool Carbon Steel Mig Solid Welding Wire
  • Low spatter, High feedability, Porosity free, Good bead appearance, Easy to weld
  • Shielding gas is required: 80-percent Ar+20-percent CO2 or 100-percent CO2,All Positions, Single and multi pass welding
  • Mig solid welding wire for Carbon and Carbon-Manganese steels
  • Made in Italy from the finest quality materials using state of the art technology under highly respected labor conditions
  • Approvals: ABS, TUV, DB, DNV, LRS, RINA, GL

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.

Inefil 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. 

Inefil ER70S-6 Carbon Steel MIG Solid Welding Wire Pros
  • It’s performance-friendly
  • The wire is smooth and experiences low jerks and snags
  • It also produces a minimum spark
Inefil ER70S-6 Carbon Steel MIG Solid Welding Wire Cons
  • 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

ER70S-6 - MIG Mild & Low Alloy Steel Welding Wire - 33 Lb x 0.035"
  • READ THIS BEFORE YOU BUY*** Carefully check dimensions shown on picture #2 and make sure this spool will fit your welder.
  • ER70S-6 is the most common of the copper-coated mild steel GMAW (MIG) wires for single or multiple pass welding ER70S-6 has the highest combination of manganese and silicon deoxidizers, permitting higher welding currents with 100% CO2 and CO2/Argon Mix shielding gases, and leaving a smoother weld bead with little to zero post-weld cleanup.
  • Copper-plated and layer wound. Especially well suited for sheet metal applications or structural plate steels that have moderate amounts of rust oil or mill scale on them
  • Common uses include construction work, farm implement fabrications, general shop applications with poor fit-up or rusty, oily plates, tanks, steel castings or forgings
  • Available Diameters: 0.023", 0.030", 0.035"and 0.045" - Available Spool Weights: 33 and 44 Lb. Select from menu.

The Best MIG Wire for Sheet Metal applications and structural steel plates with copper-plating.TGB ER70S-6 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.

TGB ER70S-6 MIG Mild & Low Alloy Steel Welding Wire Pros
  • The wire has supreme performance
  • It endures heavy usage
  • It saves a lot of time and effort
TGB ER70S-6 MIG Mild & Low Alloy Steel Welding Wire Cons
  • 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

Sale
Hobart H305406-R22 10-Pound ER70S-6 Carbon-Steel Solid Welding Wire, 0.030-Inch
  • Carbon-steel sound, porosity-free welds with powerful deoxidizers for your work with shielding gases.
  • Great for construction work, farm implement fabrication, shaft buildup, tanks, truck bodies and general shop applications with poor fit-up or rusty, oily plates.
  • 10-Pound spool
  • Country of Origin: Made in China

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 Hobart H305406-R22 provides easy wire feed, minimum splatter, smooth beads, and easy cleanup.

Hobart H305406-R22 Carbon Steel Solid Welding Wire Pros
  • It is useful for a variety of welding applications.
  • The feed is consistent without the absence of snags and jerks.
Hobart H305406-R22 Carbon Steel Solid Welding Wire Cons
  • Delivery damages can occur

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5.  | 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 weighs 33lb and has an a0.035inch diameter.

Harris E70S6F8 ER70S-6 MS Spool with Welding Wire Pros
  • The wire is long-lasting
  • It’s an affordable choice of welding wire
  • It produces clean results
Harris E70S6F8 ER70S-6 MS Spool with Welding Wire Cons
  • It gives a minutely rough finish.
  • Sometimes the spool gets damaged while delivering.

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.

Verdict

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.

Bestseller No. 1
Forney 42303 Flux Core Mig Wire, Mild Steel E71TGS.035-Diameter, 10-Pound Spool
  • All position flux core MIG wire for mild steel that is a self shielded and works well on rusty, dirty and painted material
  • Best suited to single pass applications with high travel speed, runs hotter than solid wires
  • Excellent for outdoor windy conditions
  • Although no gas is required, an Argon/CO2 mix will reduce spatter
  • Excellent on 18-Gauge mild steel or thicker
Bestseller No. 2
Forney 42276 Mig Wire, Mild Steel ER70S-6.030-Diameter, 33-Pound Spool
  • All position copper coated welding wire containing a high level of manganese and silicon to produce welds on dirty or rusty steel
  • High silicon content provides fluidity of the weld puddle providing smoother bead appearance and minimizing post weld grinding
  • Superior wire surface finish for best feed ability and arc performance, increased manganese and silicon provide excellent cleaning action
  • Butt and fillet welding of carbon steel sheet and plate in industrial, farm, construction and automotive equipment applications
  • Requires CO2 or Argon/CO2 shielding gas (not included)
Bestseller No. 3
US Forge Welding Solid Mild Steel MIG Wire .023 10-Pound Spool #00654
  • Excellent wire designed for single and multiple pass welding
  • Can be used for sheet metal applications when smooth welds are needed
  • A shielding gas is required when welding with this wire
  • Fabrication and repair of lightweight structural steel
  • Excellent choice for welding low carbon mild steel, I deal for body panel repair, fences, and yard tools
Bestseller No. 4
US Forge Welding Solid Mild Steel MIG Wire .030 2-Pound Spool #00662
  • Excellent wire designed for single and multiple pass welding
  • Can be used for sheet metal applications when smooth welds are needed
  • A shielding gas is required when welding with this wire
  • Fabrication and repair of lightweight structural steel
  • Excellent choice for welding low carbon mild steel, I deal for body panel repair, fences, and yard tools
Bestseller No. 5
WeldingCity Mild Steel MIG Welding Wire ER70S-6 11-Lb Roll 0.035" (0.9mm) 8"-spool
  • Premium quality mild steel gas-shielding MIG welding wire ER70S-6 11-lb spool. Copper coated welding wire for GMAW welding process with shielding-gas CO2 or Ar/CO2 mixed gas.
  • Conformed to AWS A5.18/ASME SF A5.18/ER70S-6; 11-lb net weight of welding wire; 8-in spool with 2-in center hole; spool wrapped in moisture-resistant plastic film.
  • Wire diameters available: 0.023" (0.6mm), 0.030" (0.8mm), 0.035" (0.9mm) and 0.045" (1.2mm).
  • Typical element content (wt%) in product: C=0.08; Mn=1.89; Si=0.83; S=0.019; P=0.021; Cu=0.24; Fe=balance.
  • U.S. based welding and hardware supplier. Strong technical support with experienced customer service to address buyer's any question.

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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