YESWELDER Carbon Steel ER70S-6.035 Welding Wire - Reliable Performance

In this review of the YESWELDER Carbon Steel Mig Solid Wire ER70S-6.035, the bottom line is clear: this 44-pound spool is for fabricators and hobbyists who need a versatile, high-current mild steel MIG wire that produces smooth beads and minimal cleanup. The reviewer found the wire well suited to 100% CO2 or 80/20 Ar/CO2 shielding, delivering consistent puddle control and strong fusion on sheet and structural steel. Practical users will appreciate the spool size for extended runs, though spool durability received mixed feedback from other buyers.

Key Features

• ER70S-6 chemistry: Provides a higher combination of manganese and silicon deoxidizers so welders can run higher currents and reduce porosity when using CO2.
• Shielding gas compatibility: Works with 100% CO2 or an 80% Ar/20% CO2 mix so it fits common shop gas setups without sacrificing performance.
• Smoother weld bead: Formulation helps leave a cleaner bead with little to zero post-weld cleanup under proper parameters.
• Wide application range: Suitable for construction, farm implement repairs, truck bodies, tanks, and general shop work where fit-up is imperfect or material is rusty.
• Large 44 lb spool: Offers long run times for production or heavy hobby work, reducing the frequency of changeovers.
• Durable spool construction: Supplied on an ABS plastic spool intended to survive transport and feed reliably in most MIG machines.

Who It's For

This wire is aimed at welders who regularly work with mild steel and need a reliable, high-deoxidizer ER70S-6 wire for single or multiple pass welding. It is a good match for those doing structural work, automotive body repairs, farm equipment fabrication, and general shop projects where the ability to run higher welding currents matters.

Less experienced welders or those who require stainless, flux-cored, or specialty alloy wires should look elsewhere. Also, buyers who need a small spool for occasional tack jobs may find the 44 lb size excessive for light home use.

Pros & Cons

Pros

• Produces smooth weld beads with good fusion when matched to proper gas and parameters.
• Compatible with common shielding gases, simplifying setup in most shops.
• Large spool size delivers value for extended welding sessions and production work.
• Copper coating and alloying help reduce splatter and improve feedability in many setups.

Cons

• Some customers reported occasional broken or damaged spools, so inspect the spool before installation.
• The 44 lb spool may be heavier and more than needed for casual or occasional users.

Specifications

Product	ER70S-6 MIG solid wire
Diameter	.035 in (0.9 mm)
Weight	44 lb spool
Shielding gas	100% CO2 or 80% Ar/20% CO2
Material	Copper-coated mild steel
Spool material	Durable ABS plastic

Our Verdict

The YESWELDER ER70S-6.035 44 lb spool is a practical choice for pros and serious hobbyists who need dependable mild steel MIG wire for high-current welding and broad shop applications. It offers strong value thanks to the large spool and weld quality, though buyers should check spool condition on delivery and consider whether 44 lb is the right size for their workload.

Frequently Asked Questions

Can this wire be used with 100% CO2?
Yes, ER70S-6 is designed to be used with 100% CO2 and also with an 80% Ar/20% CO2 mix.

What thickness will.035 in wire handle well?
.035 in wire is well suited to sheet metal and medium-thickness plate work and performs well when running higher welding currents without excessive burn through.

Is the spool compatible with common MIG feeders?
The wire is supplied on a standard ABS plastic spool intended to feed in most MIG machines, but inspect the spool for any damage before fitting.