March 7, 2025-- Pansteel has secured the application of its medium-aluminum zinc-aluminum-magnesium (Zn-Al-Mg) coated steel sheet in home appliance components, including air conditioners, marking the material’s first domestic use in the household appliance industry.

(Image: Performance comparison between medium-aluminum Zn-Al-Mg coated parts and traditional galvanized stamped components)

As the latest generation of coated steel products, Zn-Al-Mg coated sheets are classified into low-, medium- and high-aluminum variants, offering corrosion resistance 6-15 times superior to conventional pure zinc coatings. While medium-aluminum Zn-Al-Mg has proven its superior durability over low-aluminum versions in applications such as in solar photovoltaic brackets, warehouse shelving, lightweight steel structures, livestock farming facilities, agricultural machinery, and construction machinery, its potential in home appliance manufacturing has remained untapped until this breakthrough.   

To address the increasingly stringent quality demands from appliance manufacturers, Pansteel initiated dedicated R&D efforts to evaluate the material’s formability, paint adhesion, weldability, and other critical properties. The research confirmed its viability for appliance components and delivered tailored technical solutions. Through innovative approaches to surface defect reduction, coating flexibility enhancement, and eco-friendly surface treatment optimization, the team engineered a high-performance medium-aluminum Zn-Al-Mg alloy-coated steel sheet. This product has now been successfully implemented by appliance makers, demonstrating exceptional performance while meeting all industry specifications. 

This technological advancement significantly expands the application potential of medium-aluminum Zn-Al-Mg coating technology while enriching Pansteel’s appliance steel portfolio, reinforcing its market leadership. The advancement is expected to extend the lifespan and safety of appliance components while enabling overall product quality improvement across the home appliance industry.