Categories
- Galvanized Steel Pipe (151)
- Galvanized Steel Coil (103)
- Tinplate (22)
- Seamless Steel Pipe (142)
- Roofing Sheet (29)
- Square Steel Pipe (42)
- Angle Steel Bar (103)
- Deformed Steel Bar (68)
- PPGI Coil (29)
- Spiral Steel Pipe (14)
- Welded Pipe (36)
- Rectangular Steel Pipe (24)
- API Steel Pipe (15)
- Steel Sheet (32)
- Galvanized Aluminum Coil (15)
- Cold Roll Steel (20)
- Stainless Steel (20)
- Galvanized Steel Nails (27)
- Steel Wire Rope (29)
- Scaffolding Accessories (16)
- Prefabricated House / Steel... (8)
Type
- Carbon Structural Steel (65)
- Equal (162)
- Heavy (292)
- Light (141)
- Plate (140)
- Round (508)
- Spring Steel Bar (57)
- Steel Coil (71)
Grade
- 200 Series (16)
- 300 Series (38)
- 400 Series (87)
- HRB400 (240)
- Q195 (410)
- Q235B (569)
- Q345 (274)
- SS400 - SS490 (119)
Applications
- Boiler Plate (31)
- Construction (406)
- Container Plate (127)
- Manufacturing (621)
- Railway Rail (46)
- Steel Fabricated House (146)
- Steel Workshop (202)
- Structure Pipe (152)
News
C-Shaped Steel: A Versatile Structural Component
Views: 50 Update Date: May 30 , 2025
1. Definition and Manufacturing
- C-shaped steel (C-channel/C-purlin) is a cold-formed or hot-rolled steel section with a "C" cross-section, consisting of:
- RegionStandardGrade ExamplesChinaGB/T 6725Q235, Q345USAASTM A36/A572Grade 50EUEN 10025S235JR, S355JR
3. Key Properties
- Load Capacity: Web depth (80-300mm) determines vertical strength
- Corrosion Protection:
- Hot-dip galvanizing (Zinc coating: 60-275g/m²)
- Powder coating (option for aesthetic requirements)
- Weight Efficiency: 30-40% lighter than equivalent I-beams
4. Industrial Applications
4.1 Construction Sector
- Roof Systems: As secondary purlins (spacing: 1-2m)
- Wall Framing: Vertical studs in prefabricated buildings
- Mezzanines: Deck support beams (load capacity: 300-800kg/m²)
4.2 Transportation Infrastructure
- Highway Components: Guardrail posts (meeting AASHTO M180)
- Railway Platforms: Cantilevered canopy supports
4.3 Mechanical Engineering
- Equipment Bases: CNC machine frames (vibration damping)
- Conveyor Systems: Guide rail supports
5. Comparative Advantages
- Versus Angle Steel: 25% higher torsional resistance
- Versus Square Tubes: 15-20% cost reduction in framing
- Sustainability: 100% recyclable with low embodied carbon (1.2-1.8kg CO₂/kg steel)
6. Installation Guidelines
- Connection Methods:
- Bolting (M12-M16 bolts recommended)
- Welding (CO₂ gas-shielded arc welding preferred)
- Span Limits:
- 6m maximum for unbraced C200×60 sections
- 4m recommended for high-load scenarios
7. Future Trends
- High-Strength Variants: HSLA grades (yield strength ≥550MPa)
- Smart Coatings: Self-healing corrosion protection
- Modular Construction: Pre-drilled C-sections for rapid assembly
- C-shaped steel (C-channel/C-purlin) is a cold-formed or hot-rolled steel section with a "C" cross-section, consisting of:
- Web: Vertical central plate (typical thickness: 1.5-6mm)
- Flanges: Horizontal extensions (common width: 30-100mm)
- Lips: Edge reinforcements (standard bend: 15-20mm)
- Cold-forming: Roll-forming from galvanized coils (thickness ≤4mm)
- Hot-rolling: For heavy-duty applications (thickness >4mm)
- RegionStandardGrade ExamplesChinaGB/T 6725Q235, Q345USAASTM A36/A572Grade 50EUEN 10025S235JR, S355JR
3. Key Properties
- Load Capacity: Web depth (80-300mm) determines vertical strength
- Corrosion Protection:
- Hot-dip galvanizing (Zinc coating: 60-275g/m²)
- Powder coating (option for aesthetic requirements)
- Weight Efficiency: 30-40% lighter than equivalent I-beams
4. Industrial Applications
4.1 Construction Sector
- Roof Systems: As secondary purlins (spacing: 1-2m)
- Wall Framing: Vertical studs in prefabricated buildings
- Mezzanines: Deck support beams (load capacity: 300-800kg/m²)
4.2 Transportation Infrastructure
- Highway Components: Guardrail posts (meeting AASHTO M180)
- Railway Platforms: Cantilevered canopy supports
4.3 Mechanical Engineering
- Equipment Bases: CNC machine frames (vibration damping)
- Conveyor Systems: Guide rail supports
5. Comparative Advantages
- Versus Angle Steel: 25% higher torsional resistance
- Versus Square Tubes: 15-20% cost reduction in framing
- Sustainability: 100% recyclable with low embodied carbon (1.2-1.8kg CO₂/kg steel)
6. Installation Guidelines
- Connection Methods:
- Bolting (M12-M16 bolts recommended)
- Welding (CO₂ gas-shielded arc welding preferred)
- Span Limits:
- 6m maximum for unbraced C200×60 sections
- 4m recommended for high-load scenarios
7. Future Trends
- High-Strength Variants: HSLA grades (yield strength ≥550MPa)
- Smart Coatings: Self-healing corrosion protection
- Modular Construction: Pre-drilled C-sections for rapid assembly
