SMSTEEL
As a leading Wholesale DD13 HRPO Supplier, STEP MILLION STEEL specializes in the production of high-ductility, hot-rolled pickled and oiled steel. DD13 grade steel is internationally recognized for its exceptional deep-drawing properties, making it the preferred choice for complex structural components in the automotive and appliance industries.
Our HRPO process involves removing surface oxides (scale) through a specialized hydrochloric acid bath—a process known as pickling—followed by the application of a protective oil layer. This results in a cleaner, smoother surface finish that is ready for stamping, welding, and painting without the need for further surface preparation, significantly reducing production costs for our global clients.
The global demand for DD13 HRPO steel is witnessing a significant surge, driven by the rapid evolution of the automotive industry toward lightweighting and the expansion of smart home appliance manufacturing in emerging markets. Currently, the HRPO sector is moving toward "Green Steel" initiatives, where manufacturers focus on reducing carbon footprints during the pickling process through acid regeneration systems.
In regions like Southeast Asia, Latin America, and the Middle East, the push for localized industrialization has created a massive requirement for high-quality raw materials. DD13 HRPO acts as a versatile bridge between traditional hot-rolled steel and expensive cold-rolled alternatives, offering a cost-effective solution for precision manufacturing.
Exporting to over 100 countries with localized support.
Annual growth in HRPO demand for EV components.
Implementing sustainable pickling technologies.
Founded in 2010, STEP MILLION STEEL SUPPLY CHINA CO., LTD. has established itself as a cornerstone of the Chinese steel export market. With over 15 years of operational excellence, we combine massive scale with engineering precision.
SQM Factory Area
Monthly Output (Tons)
Skilled Employees
Years Experience
Our production lines are equipped with high-frequency welded lines and advanced molding workshops. We are not just a supplier; we are a strategic partner to giants like LG Electronics and Xizi United. Our technical depth is supported by 20 R&D engineers, each possessing over a decade of experience in metallurgical science.
We maintain deep strategic partnerships with China's Tier-1 steel mills, including Baowu Iron and Steel Group, Shougang Group, and Hebei Iron and Steel Group. This allows us to secure premium raw materials even during market fluctuations, ensuring price stability and supply chain security for our clients.
All materials are CE certified upon request. We maintain an annual turnover of nearly 4 billion yuan, a testament to our reliability and financial strength in the global market.
"Honesty and Truth, Pioneering and Enterprising" — Our core business philosophy since 2010.