Core Advantages
Extreme atmospheric durability: With ultra-heavy protective coating design, it can stably work for over 20 years in high-salt fog, high-humidity coastal or heavy industrial polluted areas, no need for regular maintenance during the service period
Extreme load bearing capacity: The base material adopts European standard high-strength structural steel, with the maximum yield strength up to 550MPa, which can fully meet the load demand of 30-meter high heavy-duty shelves and large span steel structures
Uniform degradation performance: The large-size zinc crystal grain can guide the protective coating to achieve uniform consumption, avoid local pitting corrosion problem, greatly extend the overall service life of the structure
One-stop engineering solution: Support tailored ultra-wide, ultra-thick material specification, and can provide on-site processing service including cutting, punching, bending and pre-assembly, save your project construction time by 30%
Product:
Our heavy-duty large zinc crystal zinc-coated steel roll is exclusively developed for long-cycle outdoor infrastructure projects, using the natural grain growth of zinc metal to form a self-repairing protective barrier, delivering industry-leading atmospheric corrosion durability and extreme load-bearing capacity for large-scale construction works.
Category: Infrastructure Structural Zinc-Coated Steel
Parameter：
|
Thickness |
0.09mm-5.0mm |
Customization can be made according to your requirements |
|
Width |
40mm-1250mm |
|
|
Spangle |
Regular Spangle, Small Spangle,Large SpangleZero Spangle |
|
|
Zinc coating |
Z20-275g/㎡ |
|
|
Hardness |
CQ, Full hard, Soft, Middle Hard |
|
|
Standard |
ASTM-A653,DX51D, JS G3302,etc |
|
|
Strength |
Strength Q235, Q300, Q345, Q400, Q550, etc |
Applicable fields:
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PV New Energy Industry: Large ground solar farm support frame, solar tracker structure, adapt to the extreme environment of northwest desert and coastal area
Power Transmission Industry: Power transmission tower component, substation steel structure, power pole protective plate, guarantee the long-term stable operation of power grid
Port Heavy Industry: Port dock fender panel, shipping container accessory, heavy crane structure part, resist the high salt fog corrosion of coastal port
Intelligent Warehousing Industry: High-bay automatic shelf, three-dimensional warehouse structure, meet the heavy load storage demand of intelligent logistics
Transportation Infrastructure: Large span steel structure workshop, bridge protective component, highway guardrail, adapt to the long-term outdoor service of traffic engineering
Production process：
|
Process Step |
Process Name |
Core Function |
|
Step 1 |
Thick Plate Sandblasting Pretreatment |
Thoroughly remove the rolling oxide scale and rust on the thick plate surface, far deeper than conventional degreasing, greatly enhance the coating adhesion |
|
Step 2 |
High Temperature Preheating |
280℃ high temperature preheating, completely volatilize the residual rolling oil, ensure the uniform growth of the protective coating |
|
Step 3 |
460℃ High Temp Zinc Immersion |
Optimized high temperature immersion process for thick plate, ensure the full penetration of zinc into the plate surface, avoid missing coating problem |
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Step 4 |
Pneumatic Coating Thickness Regulator |
Customized pneumatic control system, precisely control the heavy coating thickness, the error can be controlled within ±5g/㎡ |
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Step 5 |
120min Gradient Natural Cooling |
2 hours slow gradient cooling process, let the zinc metal fully grow into uniform large crystal grain, fully release the internal stress of the material |
|
Step 6 |
Low Temperature Stress Relief Annealing |
Exclusive low temperature annealing for thick plate, eliminate the processing stress of the material, avoid the structure deformation during long-term use |
|
Step 7 |
Engineering Anti-Oxidation Treatment |
Special anti-oxidation surface treatment for engineering material, additional 30% improvement of salt fog resistance, fully adapt to long-term outdoor use |
Zinc layer thickness detection
Packaging: Steel coil packaging/Steel plate packaging/Strip packaging
We provide exclusive packaging solution for engineering projects:
VCI gas phase anti-rust paper + waterproof PE film double layer packaging, adapt to long-term storage and sea transportation
Customized steel corner protector for thick roll, avoid edge damage during transportation
Project batch traceability code, easy for your on-site project management
Large size transport steel bracket reinforcement, ensure the safety of long-distance transportation
Related service: Bulk engineering cargo transport, Heavy coil container loading, Project site delivery and unloading
bulk cargo transportation
factory environment
Guangzhou Exhibition
Small container transportation
Three system certificates ensure more secure cooperation
We have certified ISO0001 Quality Management System, ISO14001 Environmental Management System, and ISO45001 Work Health and Safety Management System, which means:
Reliable quality
From raw materials to finished products, there are strict customs controls, ensuring stable product quality and consistent performance, without any good or bad conditions.
Production safety
Our standardized production process can effectively prevent safety accidents and ensure a stable supply chain without stopping deliveries due to unexpected situations.
Environmental compliance
The production process meets international environmental requirements and helps your project achieve green procurement and sustainability standards.
Collaboration is worry free
With mature skills in management and risk control, you don't have to worry about quality.
FAQ
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Q: Will the large zinc crystal affect the subsequent painting performance? A: No, our large zinc crystal roll has uniform coating density, after simple surface treatment, it can perfectly match the engineering anti-rust painting, the paint adhesion is 20% higher than ordinary zinc-coated product. |
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Q: Can you provide third party inspection report for each batch? A: Yes, we can provide BV, SGS or other third party inspection report according to your requirement, to ensure the material quality meet your project standard. |
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Q: What is the minimum order for customized specification? A: For customized specification, the MOQ is 25 tons, we also support small batch trial order for your project test. |
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