MIG Copper Wire ER70S-6 – Mild Steel Welding Solution

Overview

This is a professional-grade MIG welding wire engineered for shops that need reliable performance on less-than-ideal surfaces. The enhanced deoxidizer package delivers superior wetting and flatter bead geometry, allowing operators to maintain faster travel speeds without sacrificing quality. Whether you're stocking for general repairs or high-volume production work, this wire pairs seamlessly with compatible CO2-based shielding alternatives and complements TIG rod solutions for shops running mixed welding operations.

Key Features

• Enhanced Deoxidizer Package: Improved wetting action and flatter bead profile reduce cleanup requirements
• Dirty Surface Tolerance: Performs reliably on unprepared, rusty, or mill-scale surfaces without pre-cleaning
• Balanced Manganese-Silicon Chemistry: Optimal penetration on single-pass welds across mild and low-alloy steels
• Multi-Gas Compatibility: Works with Argon/CO₂ blends (75/25, 98/2) or 100% CO₂, providing operational flexibility
• Copper-Coated Construction: Consistent wire feed, superior contact tip life, and improved electrical conductivity
• Industry-Standard Certification: AWS A5.18, DIN 8559, EN 440, JIS Z3312, and GB/T 8110 compliant

Business Advantages for Resellers

• High-Volume Appeal: Single-pass capability on unprepared surfaces expands addressable market (farm equipment repair, maintenance crews, fabrication shops)
• Gas Flexibility Reduces SKU Burden: One wire works across three gas configurations—simplifies inventory and increases sell-through
• Competitive Margin: Enhanced performance allows you to position this above commodity offerings without premium pricing
• Cross-Sell Opportunity: Pair with MIG machines, shielding gas regulators, and contact tips for bundled shop setups
• Operator-Friendly: Faster travel speeds and reduced rework translate to customer satisfaction and repeat orders

Technical Specifications

Specification	Details
Product Type	MIG Welding Wire (Solid)
Base Material	Mild Steel
Wire Coating	Copper
AWS Classification	A5.18 ER70S-6
DIN Classification	8559 SG2
EN Classification	440 G3Si1
Minimum Tensile Strength	70 ksi (485 MPa)
Elongation	≥22%
Chemical Composition (%)	C: 0.06–0.15 / Mn: 1.40–1.85 / Si: 0.80–1.15 / P: ≤0.025 / S: ≤0.035 / Ni: ≤0.15 / Cr: ≤0.15 / Mo: ≤0.15 / V: ≤0.03 / Cu: ≤0.50 / Fe: Balanced / Other: ≤0.50
Compatible Shielding Gases	75% Ar + 25% CO₂ / 98% Ar + 2% CO₂ / 100% CO₂
Primary Applications	Repairs, mild steel, low-alloy steel, tubing, pipes, sheet metal, single-pass welds
Spool Configuration	Black plastic reel with radial-rib flanges and hollow hub

Ideal Market Segments

• Maintenance & Repair Operations: Unprepared surface tolerance eliminates downtime on field repairs
• Tube & Pipe Fabrication: Optimized for small-diameter and thin-wall applications
• Sheet Metal Assembly: Flatter bead profile reduces edge burn-through on thin gauge work
• General Fabrication: Versatile chemistry handles mixed mild and low-alloy steel jobs in one setup

Value Proposition

Stock this wire as your go-to ER70S-6 solution for shops that prioritize productivity over perfection. The forgiving chemistry and multi-gas compatibility reduce technical support calls, while the fast travel speed capability gives your customers a competitive edge. Position it as the practical choice for high-throughput operations where operator skill varies and surface prep is inconsistent.