TOKO AWS A5.18 ER70S-6 (SG2) Solid Welding Wire
TOKO AWS A5.18 ER70S-6 (SG2) Solid Welding Wire | A solid mild steel welding wire designed for Gas Metal Arc Welding (GMAW/MIG). It is widely used for welding low-carbon and mild steels, offering excellent weld quality and versatility.
Key Advantages
- AWS A5.18 Certified: Compliant with international standards for mild steel welding.
- Enhanced Deoxidization: Higher silicon and manganese content for welding slightly contaminated surfaces.
- Excellent Weld Quality: Smooth arcs, minimal spatter, and clean welds.
- Versatile Applications: Suitable for automotive, structural, and general manufacturing.
- Good Mechanical Properties: High tensile strength with good ductility.
Performance Benefits
- Improved Feedability: Optimized for stable arc performance.
- Reduced Porosity: Higher Si/Mn content improves fluidity and reduces porosity.
- Versatile Gas Compatibility: Works with various shielding gas mixtures.
- All-Position Welding: Suitable for flat, horizontal, vertical, and overhead positions.
Common Applications
- Automotive repair and manufacturing
- Structural steel fabrication
- Shipbuilding and marine applications
- General manufacturing and metalworking
- Low-carbon and mild steel welding
Technical Specifications
AWS A5.18 Classification
| Component | Meaning |
|---|---|
| ER | Electrode/Rod (usable as both electrode and filler) |
| 70 | Minimum tensile strength of 70,000 psi (70 ksi or ~483 MPa) |
| S | Solid wire |
| 6 | Chemical composition variant with higher silicon and manganese |
Chemical Composition
| Element | Percentage |
|---|---|
| Carbon (C) | 0.06–0.15% |
| Manganese (Mn) | 1.40–1.85% |
| Silicon (Si) | 0.80–1.15% |
| Sulfur (S) & Phosphorus (P) | ≤0.03% |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥70 ksi (483 MPa) |
| Yield Strength | ≥58 ksi (400 MPa) |
| Elongation | 22–30% |
Shielding Gas (SG2 Designation)
| Gas Type | Application |
|---|---|
| 75% Argon + 25% CO₂ (C25) | Most popular for smooth arcs, minimal spatter, and clean welds |
| 100% CO₂ | Cost-effective but may increase spatter |
Handling & Storage
- Store in a dry, climate-controlled environment to prevent moisture absorption
- Use wire feeders with smooth liners to avoid jamming
- Common diameters: 0.8mm, 1.0mm, 1.2mm
Manufacturer-Specific Features (SG2)
- Improved feedability and arc stability
- Reduced spatter for cleaner welds
- Optimized for high-deposition welding or specific industrial applications
Comparison to ER70S-3
- ER70S-6 has higher Si/Mn than ER70S-3
- Better performance on contaminated surfaces
- Slightly less fluid for very clean steel compared to ER70S-3
Why Choose TOKO ER70S-6 (SG2)?
- Proven Reliability: Trusted in automotive, structural, and manufacturing applications.
- Consistent Quality: Uniform feedability and arc performance.
- Global Compliance: Meets international standards for mild steel welding.