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Galvanized Flat Plate
Rust Prevention
The zinc layer effectively isolates the base material from oxygen and moisture through both physical and chemical protection mechanisms, providing an exceptionally long lifespan of 10-50 years or even longer, significantly reducing maintenance costs.
Strength and Toughness
The base steel provides the required high strength, excellent ductility, and toughness, capable of withstanding various loads such as tension, bending, and shear, ensuring structural stability.
Economical
Compared to more expensive materials like stainless steel, galvanized flat steel offers exceptionally high cost-effectiveness while meeting comparable protection requirements. Its long lifespan significantly reduces overall lifecycle costs.
Aesthetics and Practicality
The bright silver-white zinc layer gives the product a neat and beautiful appearance. It can be directly used on visible parts to reduce the cost of secondary coating.
Process Exploration
Strict pre-treatment: Pickling and rust removal -> Water washing -> Flux treatment.
High-temperature molten zinc immersion: Clean flat steel is immersed in molten zinc at approximately 450°C to produce an iron-zinc alloy reaction.
Precise temperature control and extraction: Precisely control the immersion time and extraction speed to form a uniform zinc layer.
Cooling and post-treatment: Cooling and solidification -> Passivation or oiling as necessary.
Strict quality inspection: Comprehensive inspection of the zinc layer for thickness, uniformity, adhesion strength, and appearance.
| Parameter Category | Specific Specifications | Implementation Standards | Features |
|---|---|---|---|
| Thickness (mm) | 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0... (customizable) | GB/T 3524, ASTM A36/A123 | Precise tolerance control to meet precision assembly requirements. |
| Width (mm) | 20, 25, 30, 40, 50, 60, 80, 100... (customizable) | GB/T 3524, ASTM A36/A123 | A wide range of widths, suitable for various applications. |
| Length (m) | 6m / 9m / 12m / Custom cut | - | Flexible supply reduces waste and lowers costs. |
Application
Galvanized flat steel has become an indispensable basic material for modern industry and construction due to its excellent properties:
Building Structures
Steel Connections: Serves as gusset plates, connecting plates, and stiffeners for high-strength, corrosion-resistant connections between H-beams, I-beams, steel columns, and steel beams.
Concrete Reinforcement: Serves as connecting plates and anchor plates for concrete structure reinforcement, as well as durable embedded components for various equipment, railings, and brackets.
Curtain Wall and Enclosure Systems: Serves as the core support components for curtain wall frames, metal roof purlins, and wall beams, ensuring long-term stability.
Stairs, Platforms, and Railings: Provides safe and durable manufacturing of stair treads, platform grating frames, railing posts, and handrail supports.
Power and Communications
Cable Tray Systems: They comprise the main beams, crossbars, and supports of ladder-type, tray-type, and trough-type cable trays, offering excellent load-bearing and weather resistance.
Lightning Protection Grounding Systems: As the primary material for horizontal grounding electrodes, grounding down conductors, and grounding grading rings, they offer excellent electrical conductivity and resistance to soil corrosion, serving as the cornerstone for ensuring personal and equipment safety.
Transmission Towers and Substations: They are used in tower auxiliary materials, equipment supports, and structural connectors to withstand harsh field environments.
Machinery Manufacturing and Equipment
Machinery Frames and Bases: Manufacture structural frames for various machine tool housings, equipment racks, bases, and protective covers.
Equipment Brackets and Hangers: Load-bearing brackets, pipe supports, and hangers used to support pipes, valves, ventilation equipment, electrical cabinets, etc.
Warehousing and Logistics: Beams, column connectors, and supports for heavy- and medium-duty racking, offering high load-bearing capacity and long service life.
Warehousing and Logistics: Beams, column connectors, and supports for heavy- and medium-duty racking, offering high load-bearing capacity and long service life.
Infrastructure and Municipal Engineering
Highway Guardrails: Used in critical safety components such as barrier blocks and column connectors for corrugated beam guardrails.
Municipal Facilities: Ideal for light pole bases, traffic sign brackets, manhole cover frames, and drain cover frames.
New Energy (Photovoltaic Mounting): As critical connectors, purlins, and ground pile connectors in photovoltaic mounting systems, they require extremely high weather resistance.
Greenhouses: Used in main frames and connecting fixtures, they offer high strength and resistance to moisture.
Why choose us as your galvanized flat steel supplier?
Source Guarantee: We source from carefully selected, well-known large steel mills and high-quality joint venture steel mills to ensure premium base material quality.
Zinc Coating Guarantee: We rigorously monitor the galvanizing process to ensure uniform zinc coating thickness, strong bonding, and a smooth surface finish that meets or even exceeds national and American standards. Third-party testing reports are provided as support.
Performance Guarantee: Base material mechanical properties (tensile strength, yield strength, and elongation) consistently meet standards.
Dimensional Accuracy: Strict tolerances on thickness, width, straightness, and length ensure smooth processing and installation.
Scientific selection and use guide
1. Mechanical Performance Requirements: Determine the required material grade (such as Q235B) and thickness based on the load-bearing requirements (tension, compression, and shear). Calculation is crucial to avoid under- or over-sizing.
2. Corrosion Environment Assessment:
Normal atmospheric environments (C1-C3): Z80/Z100 (G60) is generally sufficient.
Industrial/coastal/high-humidity environments (C4-C5): Z150/Z180/Z200 or higher (G90/G115+), or additional passivation/oiling, is strongly recommended.
For soil burial (grounding): Z200/Z275 (G140) grade is required to ensure long-term corrosion protection.
3. Dimensional Matching: Determine width and length based on the connection method, space constraints, and load distribution. Take advantage of our custom-sized services to minimize waste.
4. Processing Requirements: If subsequent punching, bending, or welding is required, please inform us in advance. We can provide material and process recommendations (such as selecting a more easily processed material).
5. Standard Compliance: Confirm the standards and zinc coating grade requirements specified in the project design.
Storage and Handling Recommendations
Dry and ventilated: Store in an indoor warehouse or on a well-protected outdoor platform to avoid prolonged water accumulation.
Raising and Isolation: Use sleepers or supports to elevate the material at least 10 cm above the ground to prevent erosion by water.
Avoid contamination: Keep away from corrosive substances such as acids, alkalis, and salt.
Proper Handling: Use a sling or magnetic lifting device to prevent the wire rope from directly contaminating the zinc coating. Handle with care to prevent deformation from impact.
Quotation Questions ◢
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What is the difference between hot-dip galvanized and electro-galvanized flat steel? Which is better?
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How is the price of galvanized flat steel calculated?
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How can I judge the quality of galvanized flat steel?
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Does galvanized flat steel need to be repainted?
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