Explore our high-performance steel and rigging lineup, engineered to comply with global standards (ASTM, JIS, DIN, EN).
Hansheng Technology (Hebei) Co., Ltd. is strategically situated in Tangshan City, Hebei Province—the heart of China’s steel industry. With a prime location just 150 kilometers from the Tianjin seaport and 150 kilometers from the capital, Beijing, we benefit from an exceptional logistics network that ensures efficient global shipping. 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 extensive product 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.
Driven by a commitment to supply chain excellence, competitive pricing, and professional service, our products have earned unanimous recognition across markets in the Middle East, Southeast Asia, North Asia, Africa, the Americas, and Europe. We operate under the firm philosophy of "honoring contracts and keeping promises." We view our clients not just as customers, but as valued friends, and we pride ourselves on our impeccable track record of contract fulfillment. We believe that a strong, transparent bond between our company and our clients is the ultimate cornerstone of our enduring success.
Established in 2006, we have nearly two decades of deep industry experience, providing us with the stability and expertise to navigate complex global markets.
With 8 state-of-the-art production lines, we maintain a robust annual output of 300,000 metric tons, ensuring we can meet the high-volume demands of our partners reliably and on time.
Our facility is perfectly positioned just 150 kilometers from both the major logistics hub of Tianjin seaport and the capital city of Beijing, granting us unparalleled speed and efficiency in domestic and international distribution.
We strictly follow international standards—including GB, JIS, ASTM, DIN, EN, and AS/NZS—guaranteeing that every product we deliver meets the highest level of global industrial precision.
A comprehensive analysis of metallurgy, structural evolution, and corrosion mitigation mechanisms of Zinc-Aluminum-Magnesium coated steel strip coils.
Traditional hot-dip galvanizing (GI) coatings, while effective, struggle with cut-edge degradation, scratching, and highly alkaline or ammonia-heavy atmospheres. Custom Zinc-Aluminum-Magnesium (ZAM) steel strip coils represent a major evolutionary leap in continuous galvanizing technology. The metallurgical makeup typically consists of a zinc base alloyed with 1.5% to 3.5% Magnesium and 5% to 11% Aluminum.
This precise molecular configuration triggers a unique phase separation during cooling, resulting in a microstructure containing a ternary eutectic phase. When exposed to corrosive chloride-rich or agricultural environments, the presence of Magnesium reacts with moisture to form Simonkolleite [Zn5(OH)8Cl2·H2O], an exceptionally stable, dense chemical compound that deposits on the damaged or cut areas. This provides a self-healing barrier that completely outperforms standard zinc coatings.
| Coating Category | Chemical Composition | Standard Coating Weight (g/m²) | Cut-Edge Protection | Standard Salt Spray Resistance (Hours) |
|---|---|---|---|---|
| ZAM (Zinc-Aluminum-Magnesium) | Zn + 1.5%-3% Mg + 5%-11% Al | ZMA90 - ZMA275 | Excellent (Chemical Self-Healing) | 3,000+ Hours |
| Galfan (ZA) | Zn + 5% Al + Mischmetal | Z300 - Z450 | Moderate | 1,200 - 1,500 Hours |
| Hot-Dip Galvanized (GI) | 99%+ Pure Zinc | Z120 - Z600 | Sacrificial (Fast Degredation) | 300 - 500 Hours |
| Aluzinc / Galvalume (GL) | 55% Al + 43.4% Zn + 1.6% Si | AZ150 | Poor (Edge Rusting Occurs) | 1,500 - 2,000 Hours |
One of the primary failure points in structural steel assemblies is the cut edge. In traditional GI strips, the steel substrate is immediately exposed at sheared edges, leading to galvanic corrosion that creeps underneath the coating layer. With custom ZAM steel strip coils, the mechanism changes completely. As the material is cut, exposed to moisture and oxygen, the magnesium and aluminum ions slowly dissolve from the surrounding coating layer, migrating to the exposed carbon steel core.
This chemical reaction precipitates a hard, glassy, and highly dense protective film. This film prevents further oxidation and effectively seals the edge, eliminating the need for post-processing treatments, cold-galvanizing sprays, or expensive anti-rust edge coatings. Consequently, manufacturers can significantly streamline production processes while lowering the Total Cost of Ownership (TCO) of the finished components.
Where high durability meets modern infrastructure. Exploring the structural replacement of hot-dip galvanized and stainless steel systems.
Solar power plants in coastal regions, deserts, and aggressive terrains demand a 25-to-30-year operational life without structural maintenance. ZAM steel strip coils are increasingly replacing heavy structural steel sections due to their lighter weight, high yield strength, and superior resistance to micro-climate corrosion caused by wind, sand, and high humidity.
Modern confinement agricultural facilities are highly corrosive environments due to high concentrations of ammonia (NH3) from livestock manure, coupled with high temperature and humidity. Traditional galvanization degrades within a few years. ZAM steel demonstrates exceptional chemical resistance, maintaining structural integrity up to four times longer than GI.
With the automotive industry shifting toward lightweighting and durability, custom-slit ZAM strips are critical for stamping interior brackets, window frames, door rails, and chassis undercarriage guards. Excellent formability combined with self-healing properties means minimal peeling during stamping and pressing.
At Hansheng Technology, our technical roadmap is focused on developing green, high-strength coated steel solutions. By optimizing the alloy ratio of Magnesium and Aluminum, we are continuously refining coating adhesion, enabling thinner coating layers to achieve performance levels that previously required heavy, resource-intensive coatings.
Our commitment to sustainability driving our R&D forward. We are progressively phasing out hexavalent chromium passivation treatments in favor of environmentally sound, REACH-compliant organic-inorganic hybrid coatings. This ensures that every ZAM strip coil delivered to our clients meets international eco-labeling standards while maintaining elite mechanical protection.
Our ISO9001:2000 and ISO14001 certified facilities enforce a multi-point quality assurance protocol. From raw hot-rolled substrate selection to final strip tension leveling, each batch undergoes strict mechanical testing, including tension trials, coating adhesion bend tests, and cyclical salt spray tests. This guarantees consistent yield strength and uniform coating distribution.
Strict selection of cold-rolled full-hard steel, followed by advanced surface cleaning to ensure trace oxides are removed prior to annealing.
Precise continuous temperature management (450°C - 480°C) of the ternary Zn-Al-Mg bath, maintaining target alloy composition tolerances within 0.1%.
Application of chromium-free treatment films to comply with international RoHS and REACH environmental regulations while preventing storage stain.
Hansheng Technology combines the logistical capabilities of Hebei Province's industrial core with global-facing standards.
Focusing on prime building materials to create a better life for human beings, ensuring that every structure built with our steel stands the test of time and element.
To continue to be the leader in the building materials industry by integrating advanced metallurgical innovations, AI-optimized quality controls, and customer-first services.
Trust, Confidence, and Reliability in everything we execute. Adapting dynamically to ever-changing global supply chain realities and customer project specifications.
A glimpse inside our high-efficiency production lines and manufacturing floors in Tangshan.
Proof of performance in extreme conditions. Providing structural steel for critical infrastructure since 2006.
High-strength structural framing and specialty steel products delivered to specification, supporting architectural designs under strict timelines.
Supply of industrial-grade heavy-duty structural steel profiles engineered to withstand mechanical stress and dusty, high-temperature cement processing environments.
Light-gauge steel framing strips processed for residential structural systems, exhibiting extreme dimensional accuracy and winter corrosion resistance.
Technical answers to common engineering questions regarding the purchase, application, and structural properties of Zinc-Aluminum-Magnesium steel.
Explore our structural shapes, scaffolding solutions, and high-carbon wires supporting heavy-duty global industries.
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