YESWELDER Carbon Steel ER70S-6.035 MIG Wire 33lb Spool - Smooth Welds

In this review of the YESWELDER Carbon Steel MIG Solid Wire ER70S-6.035 33-pound spool, the bottom line is simple: it is a practical choice for welders who need a reliable, general-purpose mild steel wire that runs at higher currents and produces clean beads. It is best suited to shop or field work where versatility and value matter, and the reviewer found its combination of manganese and silicon deoxidizers helps reduce spatter and post-weld cleanup in many real-world jobs.

Key Features

• ER70S-6 chemistry: Provides robust deoxidizers that allow higher welding currents with 100% CO2 for smoother beads and reduced cleanup.
• .035 in diameter: Balances feedability and penetration for common MIG guns and a wide range of sheet and plate applications.
• 33 lb spool: Offers long run-time between spool changes, making it convenient for continuous shop work and larger projects.
• Copper-coated mild steel: Improves electrical contact and feed consistency so the wire runs more reliably through the feeder.
• Shielding gas compatibility: Works with 100% CO2 or an 80/20 Ar/CO2 mix, letting users choose cost or bead appearance per job needs.
• Durable ABS spool: A strong plastic spool resists damage during transport and fits common spool mounts.

Who It's For

This wire is aimed at fabricators, farm and construction crews, and repair shops that need a versatile, affordable MIG wire for structural work, truck bodies, tank repair, and general shop tasks. Its ability to run well with 100% CO2 is useful where cost savings on shielding gas are a priority.

Those doing fine auto body finish work, specialty stainless or aluminum welding, or who require ultra-fine surface appearance may want a different alloy or diameter tailored to those specific metals. Also, buyers who need guaranteed perfect spools for automated feed systems should note mixed customer feedback on spool condition.

Pros & Cons

Pros

• Good weld quality and bead appearance when run at appropriate currents with recommended shielding gas.
• Versatile for common construction, repair, and farm applications thanks to ER70S-6 chemistry.
• Large 33 lb spool reduces downtime for long jobs and shop use.
• Durable ABS spool generally holds up to shipping and handling stresses.

Cons

• Some customers report occasional spool damage on arrival, which can complicate feeding in some MIG setups.
• Wire smoothness and splatter control are mixed across users and setups, so tuning may be required for best results.

Specifications

Product	ER70S-6 MIG solid wire
Diameter	.035 in (0.9 mm)
Weight	33 lb spool
Material	Copper-coated mild steel
Shielding gas	100% CO2 or 80% Ar / 20% CO2 mix
Spool material	New ABS plastic

Our Verdict

The YESWELDER ER70S-6.035 33 lb spool is a solid value for welders who need an all-purpose mild steel MIG wire that handles higher currents and produces generally clean beads. It is especially well suited for construction, farm repairs, and general shop work, though buyers should inspect spools on arrival and be prepared to adjust settings for optimal smoothness.

Frequently Asked Questions

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

What diameter and spool size is this product?
The wire is.035 in (0.9 mm) diameter and comes on a 33 lb spool.

Are there common issues to watch for on delivery?
Some customers report occasional damaged spools, so inspect the ABS spool for cracks before loading and contact the seller if the spool is broken.