Open flat steel plate characteristics

Open flat steel plate (i.e. steel plate after open flat processing) is widely used in many industries by unrolling, leveling and shearing the coil into a flat plate of the required size. The following are its main application areas and characteristics:

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1. Construction and steel structure
- Uses: Used for beams, columns, roofs and walls of factories, bridges and high-rise buildings.
- Advantages: high flatness, easy to weld and process, high strength and good support performance.
- Examples: fabrication of H-beam and C-beam, building curtain wall substrate.

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2. Automobile manufacturing
- Uses: body panels, chassis, doors, fuel tanks and other components.
- Advantages: Light weight but high strength (e.g., use of high-strength steel), flat surface conducive to stamping and molding.

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3. Home Appliance Industry
- Uses: Refrigerator, washing machine, air-conditioner shells and internal structural parts.
- Advantages: smooth surface, can be sprayed or coated, corrosion resistance (e.g. galvanized sheet).

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4. Machinery Manufacturing
- Uses: construction machinery (excavators, cranes), agricultural equipment, machine tool housings.
- Advantages: good abrasion resistance, can be customized to complex shapes by cutting and bending.

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5. Ship and Marine Engineering
- Uses: Hull decks, bulkheads, Offshore platform structures.
- Requirements: need to be corrosion-resistant (commonly used ship plate steel), large thickness (more than 10mm).

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6. Energy and Power
- Uses: Wind power tower, transformer box, transmission line tower.
- Characteristics: High-strength steel (e.g. Q345B) to resist wind load and stress.

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7. Furniture and Decoration
- Uses: metal tables and chairs, shelves, billboards, indoor and outdoor decorative panels.
- Advantage: easy to process into artistic shape, the surface can be brushed, chrome-plated and other treatments.

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8. Packaging and transportation
- Uses: containers, steel box packaging, logistics equipment.
- Requirements: lightweight and strong load-bearing (e.g. thin plate + reinforcement design).

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9. Other fields
- Rail transportation: high-speed rail carriages, subway components.
- Electronic industry: cabinet, distribution box shell.

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Advantages of open flat steel plate
- Flexible size: customized length and width (common thickness 0.3mm~30mm).
- Cost-effective: save more than direct purchase of flat sheet (low transportation cost of rolled sheet).
- Convenient processing: reduce subsequent leveling process and improve production efficiency.

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Common Material Types
- Cold rolled plate (smooth surface, high precision)
- Hot rolled sheet (high strength, for heavy structures)
- Galvanized sheet, stainless steel sheet (rust-proof, for outdoor or humid environment)

The choice of open flat steel sheet needs to be decided based on the strength, corrosion resistance, molding requirements and other factors for specific application scenarios.

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