Mild steel is a type of iron-based metal. It can be used for certain types of construction, for example in building bridges, but it is not very strong or durable. It requires a different type of wire to cut and weld properly. In general, the best mig wire for mild steel is composed primarily of copper and coated with an aluminum oxide powder that protects it from rusting.
So, If you want to use the right mig wire for mild steel, please check out our guide & reviews to find your right tool in right way. We reviewed 6 of the best models that has been packed with the most important features, pros & cons and user experience.
Our top 3 pick is
The 6 Best MIG Wire For Mild Steel
1. Hobart H305408R22 MIG Wire – Best Overall
The Hobart H305408R22 MIG Wire is a model that we would recommend to anyone. It’s a great choice for occasional welders and also for those who are familiar with MIG welding.
Moreover, you do not need to be an expert with using this wire in order to get good results. This is due to the fact that you can use it on a wide variety of materials, including stainless steel, aluminum, and carbon steel amongst others.
This product has been designed with user-friendly controls in mind. For example, you will find that it has an adjustable wire feed speed knob on board. This means that you can change the speed at which the wire is fed for your needs.
This is the perfect wire for use in welding thin, flat pieces of steel. The ER-70S-6 steel resists rust and corrosion, ensuring that your welds are strong and immune from damage caused by oxidation. The wire also has a number of high-temperature functions such as improving heat penetration, preventing burning and promoting electrical conductivity.
Read more: 6 Best Tungsten For Tig Welding Mild Steel.
2. WeldingCity ER70S-6 MIG Wire
The WeldingCity ER70S-6 MIG Wire is a premium quality mild steel gas-shielding MIG welding wire. It has been manufactured to conform with the requirements of AWS A5.18/ASME SF A5.18/ER70S-6 and comes in 0.023″ (0.6mm), 0.030″ (0.8mm), 0.035″ (0.9mm) and 0.045″ (1.2mm) wire diameters, which are available for use with GMAW welding process with shielding gases such as CO2 or Ar/CO2 mixed gas for your work in construction, farm implement fabrication, shaft buildup, tanks, truck bodies and general shop applications with rusty, oily plates.
ER70S-6 welding wire has a total element content of: C=0.08; Mn=1.89; Si=0.83; S=0.019; P=0.021; Cu=0.24 and Fe is balance, which means 78% of the total element content is iron, 12% of the total element content is silicon and 8% play sodium. ER70S-6 MIG wire can be used to weld mild steel, stainless steel and some nickel base alloys.
And it’s proved that WeldingCity ER70S-6 is one of the best mig wire for mild steel with its good workability, high-quality and good price.
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3. INEFIL ER70S-6 Mig Solid Welding Wire
The INEFIL ER70S-6 Mig Solid Welding Wire is a welding wire for Carbon and Carbon-Manganese steels. It has been manufactured to conform with the requirements of ABS, TUV, DB, DNV, LRS, RINA, GL, IEC and UL standards. The wire is made from the finest quality materials using state of the art technology under highly respected labor conditions.
With this wire, you can weld mildly carbon-steel, stainless steel and some nickel base alloys. Additionally, it has low spatter and good bead appearance. The shielding gas is required to be 80% Ar+20% CO2 or 100% CO2. The all positions, single and multi-pass welding is permitted, and all position welding is allowed on stainless steel.
Furthermore, this wire has a very good appearance and it is easy to weld. It resists rust and corrosion, and you will experience little spatter. It can also be used on carbon steel pipes, where you need to perform internal arc welding.
Read more: 8 Best Welding Rod For Exhaust Pipe.
4. Lincoln Electric L-56.030 MIG Welding Wire
Lincoln L-56.030 MIG welding wire is a perfect choice for the use of GMAW and MAG welding, and from which many different types of materials can be welded. The wire is made in Mexico by Lincoln Electric, which is a well-known brand in the welding industry.
Moreover, you can use this product to repair damaged parts or create new pieces of equipment. This wire is perfect for you if you want to weld steel and stainless steel, and it comes in a spool with 25 feet of wire on it. If you need more material for your project, there are also spools with 50 feet of wire available.
It is one of the best choices that you can make that will make your work easier by helping you to create something better than before, or repair damaged parts or create new pieces of equipment.
5. TGB ER70S-6 MIG Mild Welding Wire
ER70S-6 MIG Mild Welding Wire is a copper-coated, layer wound wire that is most popular among welders and is especially well suited for sheet metal applications or structural plate steels that have moderate amounts of rust oil or mill scale on them. It is made in the U.S.A and features weld deposits with low porosity, to minimize post-weld cleanup, while having excellent resistance to heat and corrosion.
Moreover, this wire has a very good appearance, and it is easy to weld. It resists rust and corrosion, and you will experience little spatter. Being a layer wound wire makes it easy to use, because you will not waste any material or scratch through your work piece during welding. This type of wire is well suited for users who need to repair damaged parts or create new pieces of equipment.
ER70S-6 MIG Mild Welding Wire 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 to your parts.
6. Forney 42300 Flux Core Mig Wire
Forney 42300 Flux Core Mig Wire is a E71T flux-core MIG (GMAW) welding wire for mild steel that is best suited for single pass applications with high travel speeds and excellent finish. “Pink color coding on label.” This type of wire provides low porosity weld deposits which minimizes post-weld cleanup while having an excellent resistance to heat or corrosion.
As well as the fact that there are no shielding gases required to use this product. It also has excellent qualities for outdoor windy conditions, that is suitable for all positions and can be used on dirty, rusty, and painted materials. This product is recommended to be used at DCEN straight polarity and also features a diameter of .030 inches (.762 millimeters).
ER70S-6 is well-known for its excellent heat resistance & weld appearance. It has a very good mechanical and corrosion performance, which means that it can be used in many industrial fields and applications. The ER70S-6 MIG wire is a good choice if you are looking for high quality welding wires that will answer all your requirements. Moreover, we recommend that you do some research before you buy any product to make sure it will be the best one for your needs. Thank you for reading our review article about the best welding wires!
I hope you liked this article and find it useful. Please, feel free to leave comments in the comment section below, or share this article on social media. Thank you again!
Walton M. Edwards was born in 1994 in a coal mining town, he has worked as a welder, a hardware salesman, and as a pipe fitter and has been employed as a laborer for about fifty years. Walton is a native of Wabash County in Indiana, but he now resides in Bloomington, Indiana.