HYUNDAI WELDING is a leading welding consumables manufacturer offering SM-70MT, an ultra-low slag solid wire specifically engineered for automotive industry standards and general steel fabrication. Beyond SM-70MT, HYUNDAI WELDING offers solid wires for mild steel, high-tensile steel, and low-temperature service steel, along with stainless steel welding wire and nickel-based alloy wires for specialized applications.
SM-70MT: Ultra-Low Slag Solid Wire for Automotive & Industrial Welding
Designed for mild steel and 490MPa high tensile steel, SM-70MT supports all-position and high-speed thin-plate welding. Unlike conventional ER70S-3 and ER70S-6 solid wires, it generates virtually no slag on the bead surface. This prevents localized corrosion on galvanized steel plates and vehicle frame parts while ensuring superior paint adhesion even in briny environments.
Optimized for Ar + CO2 mixed shielding gas, SM-70MT minimizes pores and spatter under proper welding conditions and integrates seamlessly with standard, existing welding equipment.
Applications of SM-70MT
- Automotive manufacturing, vehicle frame parts, and galvanized steel fabrication.
- Industrial steel structures requiring high corrosion resistance and high-speed thin-plate welding.
Key Features & Benefits
- Ultra-Low Slag & Superior Corrosion Resistance: Eliminates bead surface slag, preventing corrosion on galvanized and conventional steel sheets even in salt/brine environments.
- Enhanced Paint Adhesion: Slag-free surface enhances electro-deposition coating performance and paint durability.
- High Productivity: Supports all-position and high-speed welding on thin plates.
- Low Porosity & Spatter: Reduces pores and spatter under optimal settings, minimizing post-weld cleanup.
- Universal Compatibility: Fits standard welding equipment currently in use.
- ER70S-3/6 Alternative: Meets modern automotive demands for reduced slag production.
Solid Wire for Reliable Automotive & Steel Welding
Choosing the right solid wire is critical for achieving consistent weld quality, superior paint durability, and long-term corrosion protection in automotive and structural fabrication. The SM-70MT combines stable arc performance with ultra-low slag generation, ensuring clean bead surfaces and excellent electro-deposition coating compatibility—even on galvanized steel plates in harsh briny environments.
For fabricators seeking dependable welding solutions for mild and high tensile steels, selecting consumables that minimize spatter and porosity while meeting modern carmakers’ strict standards is essential. SM-70MT serves as an advanced alternative to conventional ER70S-3/6 wires, delivering reliable, high-efficiency welding performance for demanding production lines.
Contact HYUNDAI WELDING for solid wire inquiries.
