Hyundai SM-70S
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SM-70S is an all-positional, high-speed solid wire optimized for robotic welding of galvanized steel, providing clean, low-spatter welds and superior pore prevention, making it a top choice in the automotive industry.
Hot-dip galvanized steel (HGA) is increasingly used in the automotive industry for its excellent corrosion resistance and high strength (590 MPa), which help extend vehicle lifespan and reduce weight through thinner components. To prevent porosity during welding caused by galvanized layer vaporization, the SM-70S solid wire was developed, which offers excellent weldability in both short circuit transfer and pulse arc modes. Optimized for robotic welding, SM-70S (ER70S-3) is now widely adopted by leading automakers for hot-dip galvanized steel, demonstrating superior pore prevention compared to standard ER70S-6 wires.
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