In the global steel hierarchy, Hot Rolled (HR) Coil serves as the fundamental "mother coil" for the galvanizing industry. When used as a Galvanizing Base, the quality requirements transcend basic structural parameters. It requires precise chemical composition control—specifically low carbon and silicon content—to ensure optimal zinc-iron alloy layer formation during the hot-dip process.
As the primary substrate for products like GI (Galvanized Iron) and PPGI (Pre-painted Galvanized Iron), the HR base must exhibit exceptional surface cleanliness and flatness. At Hansheng Technology (Hebei) Co., Ltd., we recognize that the performance of the final coated product is 70% dependent on the metallurgical integrity of the HR base.
Annual Tonnage Capacity
Years of Industry Expertise
Compliance with ASTM/JIS
Distance to Tianjin Seaport
Utilizing SPHC, SPHD, and SPHE grades according to JIS G3131. These materials provide the ductility required for complex forming after the galvanizing process.
For infrastructure projects, our SS400 and ASTM A36 equivalent HR coils ensure high tensile strength and weldability, crucial for heavy-duty galvanized structural sections.
Advanced HRPO lines remove mill scale, providing a pristine surface that reduces zinc consumption and enhances the aesthetic finish of the final galvanized sheet.
| Parameter | Standard Specification | Hansheng Tech Advantage |
|---|---|---|
| Carbon Content (C) | ≤ 0.12% (Common) | Controlled at ≤ 0.08% for superior coating flexibility |
| Thickness Tolerance | ± 0.10mm | High-precision mill control within ± 0.05mm |
| Surface Quality | FB/FC Grade | Zero-defect surface protocols for high-end PPGI base |
Hansheng Technology is strategically situated in Tangshan City, the epicentre of China’s steel industry. This location provides us with immediate access to raw materials and a highly skilled workforce, ensuring that we maintain a competitive pricing structure without compromising on quality.
With only 150km to Tianjin Seaport, we offer the fastest turnaround times for international orders. Our "Just-in-Time" delivery capability is a cornerstone of our service to partners in Southeast Asia, the Middle East, and Europe.
Our infrastructure includes 8 high-efficiency lines, allowing us to pivot between standard HR coils and specialized galvanizing substrates depending on global market demand.
High-strength HR base coils are galvanized to provide 25+ years of corrosion resistance for utility-scale solar farms.
Used in chassis components where both strength and the protective qualities of zinc are mandatory.
The base for ductwork and roofing profiles, requiring precise gauge control for roll-forming efficiency.
Base material for highway guardrails and bridge scaffolding, where safety is non-negotiable.
The future of the HR Coil industry lies in Decarbonization and Smart Manufacturing. Hansheng Technology is investing in technical roadmaps that include:
We are aligning our production with ISO 14001 standards to ensure that our growth does not come at the cost of the environment. Our vision is to be the leader in the "Green Steel" movement within the Hebei region.
Hansheng Technology (Hebei) Co., Ltd. is strategically situated in Tangshan City, Hebei Province—the heart of China’s steel industry. Since our inception in 2006, we have evolved into a comprehensive, export-oriented enterprise specializing in the manufacturing of premium-quality steel products.
We operate 8 high-efficiency production lines with a total annual production capacity of 300,000 metric tons. Our portfolio includes Galvanized Steel Wire, Hot/Cold Rolled Steel Coils and Sheets, GI/PPGI, GL/PPGL, and various Section Steels, all meticulously manufactured to adhere to rigorous international standards such as GB, JIS, ASTM, DIN, EN, and AS/NZS.
A high-quality HR base must have a low silicon and phosphorus content to avoid the "Sandelin Effect," which leads to brittle and overly thick zinc coatings. Surface smoothness is also critical for a uniform finish.
Yes, we perform professional QC systems and pre-shipment inspections for each batch to ensure compliance with contract specifications in terms of quality, quantity, and timing.
We strictly adhere to international standards including ASTM (USA), JIS (Japan), DIN (Germany), and GB (China). This ensures our products are ready for use in any global project.
While possible for some heavy industrial applications, we recommend Pickled and Oiled (HRPO) base for general galvanizing to ensure superior zinc adhesion and a cleaner finish.
Beijing Yanxihu Center Project
South Africa Mamba Cement Project
Modern Villa Project to Canada
Exporting to 50+ Countries
Hanshen
