SMSTEEL
SMSTEEL
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Hot Rolled Pickled and Oiled (HRPO) steel is a critical industrial material that bridges the gap between standard hot rolled and cold rolled steel. By removing surface oxides (scale) through an acid bath—a process known as pickling—and applying a protective oil film, we ensure a clean, smooth surface finish that is ideal for precision manufacturing.
The demand for HRPO steel is surging globally, particularly in the automotive, appliance, and heavy machinery sectors. As manufacturers seek cost-effective alternatives to cold rolled steel without sacrificing surface quality, HRPO has become the "gold standard" for structural components requiring superior weldability and paint adhesion.
The steel industry is shifting towards sustainable production and high-strength low-alloy (HSLA) grades. Modern HRPO lines now integrate advanced automation to ensure consistent thickness and oil distribution, meeting the rigorous standards of Industry 4.0 smart factories.
Our production facilities cover over 66,700 square meters factory, and have more than 300 employees and eight High Frequency welded lines. Each line has a complete set of equipment to accomplish at least five production steps. All of this gives us a monthly output of 100,000 tons, half of which is exported. These facilities also include a molding workshop complete with 20 R&D engineers possessing over 10 years’ experience.
As a professional HRPO Steel Manufacturer, we understand that the "Properties" in HRPO are not just about the surface. It involves a complex chemical balance of Carbon, Manganese, Phosphorus, and Sulfur. Our HRPO steel exhibits exceptional ductility and formability, making it the preferred choice for deep drawing and complex bending operations.
The pickling process at our factory uses a controlled hydrochloric acid solution that effectively removes the iron oxide scale formed during hot rolling. This is followed by a rigorous rinsing and drying phase before the application of high-grade rust-preventative oil. This ensures that when the steel reaches your facility—whether in South America or Southeast Asia—it remains in pristine condition, ready for immediate processing.
Our expertise is backed by strategic partnerships with industry giants like Baowu Iron and Steel Group and Hebei Iron and Steel Group. By sourcing premium raw materials and utilizing testing equipment from Germany and Japan, we guarantee that every coil meets international standards such as ASTM A1011 or DIN EN 10111.
Furthermore, our 20+ inspectors ensure that every batch undergoes tensile testing, hardness testing, and surface roughness analysis. This commitment to quality control is why we maintain long-term strategic cooperation with global brands like LG Electronics.
In rapidly developing regions like Southeast Asia and Africa, HRPO steel is vital for structural tubing and shelving systems. Its clean surface allows for high-quality powder coating and painting, essential for urban infrastructure projects.
For the automotive hubs in Latin America and Europe, our HRPO steel provides the necessary strength-to-weight ratio for chassis components, suspension parts, and seat frames, ensuring safety and durability.
The "White Goods" industry requires steel with zero surface defects. Our pickled and oiled sheets are used by manufacturers for refrigerator panels, washing machine drums, and microwave housings where aesthetics meet function.
Founded in 2010, STEP MILLION STEEL SUPPLY CHINA CO., LTD. has evolved into a leading steel material supplier. Our competitive advantage lies in our integrated supply chain and technical operational excellence.
STEP MILLION STEEL specializes in value for clients. We have built long-term cooperation with many clients and have received wide acclaim across Middle & South America, Southeast Asia, the Middle East, and Africa. Our product range is extensive, including: pre galvanized steel pipe, hot dip galvanized steel pipe, ERW pipe, square and rectangular tube, scaffolding tube, steel plate coils, cold-rolled steel sheet (coil) SPCC, pickled steel sheet (coil) SPHC, galvanized steel sheet (coil) SGCC/SECC, stainless steel sheet (coil) STS, aluminum sheet (coil) AL, silicon steel SI and more.
