The Hyundai SM-70 is a premium copper-coated solid welding wire designed for Gas Metal Arc Welding (GMAW). With a 1.0mm diameter and packaged in a 5kg ,15kg spool, this wire is perfect for welding mild steel and high-tensile steel (490 MPa) across multiple positions. Its high deposition rate, deep penetration, and low spatter make it ideal for structural fabrication, automotive industries, machinery production, and shipbuilding.
Key Features
✔ 1.0mm diameter for versatile welding applications
✔ Copper-coated solid wire for excellent electrical conductivity
✔ Stable arc with minimal spatter, ensuring smooth welds
✔ High deposition efficiency and deep penetration
✔ Suitable for short-circuiting transfer welding
✔ Compatible with 100% CO₂ or Ar + CO₂ gas mixtures
✔ 5kg spool, ideal for workshop and industrial use
Specifications
| Specification |
Details |
| Brand |
Hyundai Welding |
| Model |
SM-70 |
| Diameter |
1.0mm |
| Weight |
5kg,15kg |
| Material |
Copper-coated solid wire |
| Shielding Gas |
100% CO₂ or Ar + 15-25% CO₂ |
| Applications |
Structural fabrication, automotive, machinery, shipbuilding |
| Yield Strength |
460 MPa |
| Tensile Strength |
555 MPa |
| Elongation |
29.3% |
| Impact Value (@ -29°C) |
85 J |
Recommended Welding Parameters
| Wire Diameter |
Current (A) |
Voltage (V) |
Shielding Gas |
| 1.0mm |
100-200 A |
20.5-26 V |
100% CO₂ or Ar + CO₂ |
📌 Tip: For best results, maintain a shielding gas flow rate of ~25 liters per minute and adjust the contact tip to work distance based on the welding current.
Why Choose Hyundai SM-70?
✅ Industry-Leading Performance – Used in major fabrication industries worldwide
✅ Superior Weld Quality – Low spatter, smooth arc, and deep penetration
✅ Versatile Applications – Suitable for multiple industries
✅ Trusted Hyundai Welding Technology – Designed for high-efficiency and durability
