MIG Copper Wire ER70S-6 – Mild Steel, 0.8mm

Overview

This ER70S-6 copper-coated MIG wire is engineered for high-deoxidizer performance, making it ideal for welders who work with less-than-perfect surfaces and require consistent, high-quality welds without extensive surface preparation. The wire's enhanced manganese and silicon content delivers superior wetting characteristics, flatter bead profiles, and faster travel speeds—critical advantages for repair work and production runs on mild and low-alloy steels.

Whether you're stocking welding consumables for shop floor use or reselling to fabrication shops, this wire performs equally well with standard CO2 welding wire or mixed-gas setups, giving your customers maximum flexibility across their welding operations.

Key Features

• Deoxidizer-Rich Composition: Enhanced Mn and Si levels ensure clean welds on rusty, dirty, or unprepared surfaces—eliminating costly prep steps
• Superior Arc Stability: Produces flatter, more uniform beads with minimal spatter across all compatible shielding gas mixtures
• Fast Travel Speed Capability: Higher deoxidizer content enables faster wire feed rates without sacrificing bead quality
• Multi-Gas Compatibility: Works seamlessly with 75% Ar + 25% CO₂, 98% Ar + 2% CO₂, or 100% CO₂ shielding gas
• Single-Pass Welding Performance: Optimized for single-pass applications on tubes, pipes, and sheet metal where efficiency matters
• AWS A5.18 Certified: Meets international welding standards (DIN 8559 SG2, EN 440 G3Si1, JIS Z3312 YGW12)

Business Advantages for Resellers

• High Shop Demand: ER70S-6 is the industry workhorse for general fabrication and repair—consistent, predictable inventory turnover
• Margin-Friendly: Deoxidized formulation commands better pricing than basic wire, while production shops view it as a cost-saving consumable (less rework, faster completion)
• Broad Customer Base: Suitable for automotive repair, structural steel, HVAC fabrication, and general metal work—appeals to diverse shop profiles
• Gas-Neutral Positioning: Sell with confidence to shops using any standard shielding gas; no compatibility issues to manage
• Bulk Order Ready: 0.8mm diameter on standard reels makes this an easy SKU for distributors to stock and resell in volume

Technical Specifications

Specification	Details
Wire Diameter	0.8mm (5/32")
Spool Weight	0.7kg (per spool shown)
Classification	AWS A5.18 ER70S-6
DIN Standard	DIN 8559 SG2
EN Standard	EN 440 G3Si1
JIS Standard	JIS Z3312 YGW12
GB Standard	GB/T8110 ER50-6
Carbon (C)	0.06–0.015%
Manganese (Mn)	1.40–1.85%
Silicon (Si)	0.80–1.15%
Phosphorus (P)	≤0.025%
Sulfur (S)	≤0.035%
Copper (Cu)	≤0.50%
Nickel (Ni)	≤0.15%
Chromium (Cr)	≤0.15%
Molybdenum (Mo)	≤0.15%
Vanadium (V)	≤0.03%
Residuals	≤0.50%
Recommended Shielding Gas	75% Ar + 25% CO₂ / 98% Ar + 2% CO₂ / 100% CO₂

Primary Applications

• Repairs & Maintenance: Welds on rusty or dirty surfaces without requiring aggressive prep work
• Mild & Low-Alloy Steel Fabrication: Structural frames, brackets, and assemblies
• Tube & Pipe Welding: Excellent for small-diameter tubes and pipes with minimal distortion
• Sheet Metal Work: Flat beads and minimal spatter reduce grinding and finish work
• Production Welding: Single-pass capability maximizes throughput on routine jobs

Reseller Recommendation

Stock this wire as your ER70S-6 core offering. It solves the most common shop pain point—poor surface prep—and delivers professional results on the widest range of mild steel applications. Pair it with stainless steel ER70S-6 rods for customers branching into dual-material work, and position both as must-have consumables for any serious fabrication operation.