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Corten steel siding panels are weathering steel sheets used for both shipping containers and architectural cladding systems. Although the base material is the same (corten steel), の processing method for container corrugated panels and ordinary flat siding panels is significantly different due to different structural requirements.

1. Basic Function Difference

Container Corten Panels

• Designed for high structural load
• Must withstand stacking, インパクト, and transport vibration
• Focus on strength and deformation resistance

Ordinary Corten Siding Panels

• Designed for architectural appearance
• Used for façade, 壁の被覆材, and decoration
• Focus on aesthetics and corrosion resistance

2. Forming Process Difference

Container Corrugated Panels (Deep Forming)

Container panels use heavy-duty roll forming or press forming:

• High-strength corrugated profiles
• Deep rib structure for rigidity
• Continuous roll-forming production lines
• Strict dimensional control for assembly

主な特徴:

• Corrugation depth is larger
• Structural stiffness is much higher

This ensures the panel can support stacking loads when containers are piled up.

Ordinary Corten Siding Panels (Light Forming)

Architectural siding panels use simpler forming methods:

• Light roll forming or flat sheet processing
• Shallow or decorative corrugation
• Flat panel or micro-profile designs
• Flexible custom patterns (laser cutting possible)

主な特徴:

• Focus on appearance rather than load-bearing
• Easier forming with thinner sheets

3. Thickness Requirement Difference

Container panels are generally thicker or reinforced compared with decorative siding panels.

4. Welding and Assembly Difference

Container Panels

• Fully welded to steel frame structure
• High-strength continuous weld seams
• Reinforced corner and edge connections
• Designed for long-term mechanical stress

Assembly is highly standardized for global shipping requirements.

Siding Panels

• May use hidden fasteners or exposed screws
• Sometimes no welding required
• Installed on light steel or aluminum sub-frames
• Focus on easy installation and replacement

5. Surface Treatment Difference

Container Panels

• Usually mill finish corten steel
• Natural weathering during service life
• No decorative requirement

Siding Panels

• May use:
  • 防錆仕上げ
  • Controlled oxidation
  • Decorative surface treatment

Architectural projects require consistent color and appearance, so surface control is more important.

6. Quality Control Standards Difference

Container Panels

Require strict industrial standards:

• Dimensional tolerance control
• Load-bearing strength testing
• Impact resistance verification
• Welding quality inspection

Because they are used in logistics and transportation systems.

Siding Panels

Focus on:

• Surface flatness
• Visual uniformity
• Pattern precision (if perforated or decorative)
• Installation compatibility

Structural load testing is less critical.

7. Application Difference Summary