Blue Demon ER70S6.030 11 LB MIG Welding Wire - Low Spatter

In this review of the Blue Demon ER70S6.030 11 LB MIG welding wire the bottom line is simple: it is a practical, budget-minded choice for hobbyists and small shops that need a high-tensile, porosity-free weld on carbon steel. The reviewer found it best where fit-up is imperfect or when rescuing steel castings or forgings, and appreciated that the wire is formulated to produce x-ray quality welds when run with a CO2 or CO2 mix shielding gas. For someone who wants reliable, strong weld metal without a premium price, this wire delivers the essentials.

Key Features

• All-position capability: Performs across welding positions so the same spool can be used for a variety of repairs and projects.
• Low spatter formulation: Reduces cleanup time and makes the welding process neater for hobby or shop work.
• Porosity-free, x-ray quality welds: Engineered to minimize porosity and meet higher-quality weld expectations when run correctly.
• High tensile strength: Offers the highest tensile strength among plain carbon steel wires as-welded, useful for structural repairs.
• Designed for poor fit-up: Works well on general shop applications and salvage of castings or forgings where joint fit-up is not perfect.
• Requires shielding gas: Intended to be used with CO2 or CO2 mix for optimal results and weld quality.

Who It's For

This wire suits home fabricators, backyard mechanics, and small machine shops that need a cost-effective wire able to handle imperfect joints and salvage work. It is a good match for mild steel repair, structural tack welding, and projects where a strong weld is more important than cosmetic perfection.

Those who should look elsewhere include welders who need flux-cored performance without external gas or those requiring specialty alloys or stainless steel wire. Also, buyers expecting perfectly packaged spools every time should be aware some customers have received damaged spools in transit.

Pros & Cons

Pros

• Good wire quality that lays down smoothly and burns well, producing strong welds.
• Low spatter formulation reduces cleanup on most jobs and improves overall efficiency.
• High tensile strength and porosity-free formulation make it suitable for demanding repairs and x-ray quality expectations.

Cons

• Requires CO2 or CO2 mix shielding gas, so not suitable for gasless flux-cored setups.
• Occasional reports of spool damage in transit mean buyers should inspect packaging on arrival.

Specifications

Product name	ER70S6.030 dia, 11 LB spool
Wire diameter	0.03 in
Weight	11 LB
Material	Plain carbon steel
Position	All position
Shielding gas	CO2 and/or CO2 mix required
Intended use	General shop, castings/forging salvage, home projects

Our Verdict

The Blue Demon ER70S6.030 11 LB spool is a practical, value-oriented welding wire for hobbyists and small shops that need reliable, high-strength welds on carbon steel. It stands out for porosity-free, x-ray quality welding when used with the recommended CO2 shielding gas and is a solid choice for salvage and imperfect fit-up work, though buyers should account for the need for gas and watch spool condition at delivery.

Frequently Asked Questions

Do I need shielding gas to use this wire?
Yes; this wire requires CO2 or a CO2 mix shielding gas and is not intended for gasless flux-cored welding.

Is this wire suitable for all positions?
Yes; the product is rated for all-position welding, making it versatile for a variety of repairs and projects.

How is the weld quality?
Customers report the wire produces porosity-free, high-tensile welds that lay down nicely, though some users noted differing levels of splatter depending on settings.