Description
MIG Wire ER70S-6 (LR, ABS, DNV Approval)
MIG Wire ER70S-6 is a solid mild steel welding wire designed for GMAW (MIG) welding applications. The ER70S-6 classification is widely used for fabrication, construction, automotive, shipbuilding, pipeline, and general steel welding. Its elevated manganese and silicon content improves deoxidising performance and helps achieve consistent weld quality on clean steel as well as lightly rusted or mill-scale surfaces. Verified LR, ABS, and DNV approvals support use in marine and industrial environments.
Key Features
- ✅ AWS A5.18 / ASME SFA 5.18 ER70S-6 classification
- ✅ Suitable for mild steel and carbon steel welding
- ✅ High manganese and silicon content for improved deoxidising action
- ✅ Stable arc characteristics with low spatter generation
- ✅ Smooth wire feedability for manual and semi-automatic welding
- ✅ Approved by LR, ABS, and DNV for qualified applications
- ✅ Compatible with 100% CO₂ or Argon/CO₂ shielding gas mixtures
- ✅ Available in spool and drum pack formats
Benefits
- ⚙️ Reduces post-weld cleaning and grinding requirements
- ⚙️ Produces smooth bead appearance with consistent weld quality
- ⚙️ Performs well on steel with light rust or mill scale contamination
- ⚙️ Helps maintain productivity through reliable wire feeding
- ⚙️ Suitable for fabrication, repair, maintenance, and production welding
- ⚙️ Supports marine and industrial projects requiring recognised approvals
Specifications
| Product Type | Solid Mild Steel MIG Welding Wire |
| Classification | AWS A5.18 / ASME SFA 5.18 ER70S-6 |
| Applications | GMAW (MIG) welding |
| Base Materials | Mild Steel and Carbon Steel |
| Carbon (C) | 0.06–0.15% |
| Manganese (Mn) | 1.40–1.85% |
| Silicon (Si) | 0.80–1.15% |
| Tensile Strength | 70,000–90,000 psi |
| Yield Strength | 58,000–75,000 psi |
| Elongation | 22–30% |
| Shielding Gas | 100% CO₂ or Argon/CO₂ Mixtures |
| Approvals | LR, ABS, DNV |
| Available Sizes | 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.6mm |
| Individual Pack | 5kg spool (0.8mm) or 15kg spool depending on size selected |
| Packaging Option | 250kg Drum Pack available in 1.0mm and 1.2mm |
How to Use
- Select the appropriate wire diameter for the welding application.
- Install the wire correctly in the MIG welding machine.
- Set the machine to DC electrode positive polarity.
- Select an approved shielding gas such as 100% CO₂ or an Argon/CO₂ blend.
- Adjust voltage, wire feed speed, and gas flow for the material thickness.
- Perform a test weld and fine-tune settings before production welding.
- Store unused wire in a dry environment to help prevent contamination.
⚠️ Use appropriate shielding gas and welding PPE at all times, and remove excessive rust, oil, moisture, and contaminants from the weld zone before welding.
⭐⭐⭐⭐⭐ “Smooth feeding wire with very little spatter and excellent bead appearance.” — David S.
⭐⭐⭐⭐⭐ “Used on structural steel fabrication with reliable and consistent results.” — Mark T.
⭐⭐⭐⭐⭐ “Good performance on marine maintenance work where approved consumables are required.” — Pieter R.
Frequently Asked Questions
Q: What material is this wire designed for?
A: ER70S-6 is designed primarily for mild
