English 
Español 
Français 
Deutsch 
Português (Brasil) 
Русский 
العربية 
C-Shaped Steel - ASTM Certified Mill Direct Manufacturer
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of C-Shaped Steel
| Property | Parameter | Description |
|---|---|---|
| Product Name | C-Shaped Steel (C Channel / C Purlin) | Cold-formed structural steel section with C-shaped cross-section profile |
| Material Grade | Q235B / Q345B / SS400 / S235JR / A36 | Equivalent grades: EN S235JR, ASTM A36, JIS SS400, GB Q235B |
| Standard Compliance | GB/T 6723, ASTM A36, EN 10162, JIS G3350 | Conforms to international cold-formed steel section standards |
| Carbon Content (C) | ≤ 0.20% | Ensures good weldability and formability per Q235B/A36 specification |
| Manganese Content (Mn) | 0.30% – 1.40% | Enhances strength and toughness of the steel matrix |
| Silicon Content (Si) | ≤ 0.35% | Acts as deoxidizer during steelmaking process |
| Phosphorus Content (P) | ≤ 0.045% | Controlled to prevent cold brittleness |
| Sulfur Content (S) | ≤ 0.045% | Controlled to prevent hot shortness |
| Tensile Strength | 370 – 510 MPa | Per ASTM A36: 400–550 MPa; per GB Q235B: 370–500 MPa |
| Yield Strength | ≥ 235 – 345 MPa | Q235B ≥ 235 MPa; Q345B ≥ 345 MPa; A36 ≥ 250 MPa |
| Elongation | ≥ 20% | Measured on standard gauge length per respective material standard |
| Dimensions (H × W × T) | Height: 80–300 mm; Width: 40–100 mm; Thickness: 1.5–6.0 mm | Length: 6000–12000 mm, customizable upon request |
| Surface Finish | Hot-dip galvanized / Painted / Black (mill finish) | Galvanized coating: 60–275 g/m² per ASTM A653 or EN 10346 |
| Application | Steel structures, purlins, wall girts, solar mounting, warehouses | Widely used in prefabricated buildings, industrial plants, and mezzanine floors |
| Certification | ISO 9001, CE, SGS, BV, Mill Test Certificate (EN 10204 3.1) | Third-party inspection available upon buyer request |
| Packaging | Bundled with steel strips, waterproof paper or plastic wrap | Seaworthy packaging for export; container or bulk vessel shipment |
| MOQ | 5 Metric Tons | Smaller trial orders negotiable; mixed sizes accepted per order |
C-Shaped Steel - ASTM Certified Mill Direct Manufacturer
C-shaped steel, also known as C-channel or C-purlin, serves critical roles in modern construction and industrial framing systems worldwide. As a mill-direct manufacturer with ASTM certification, we produce premium-grade C-shaped steel profiles engineered for structural integrity, dimensional precision, and long-term performance. Our cold-formed and hot-rolled C-steel channels are manufactured under strict quality management systems compliant with ISO 9001:2015, ensuring every batch meets or exceeds international standards. Whether you require light-gauge purlins for metal building systems or heavy-duty structural channels for industrial platforms, our production facilities deliver consistent quality at cost-effective mill-direct rates with annual capacity exceeding 200,000 metric tons.
What is C-Shaped Steel?
C-shaped steel is a structural steel profile characterized by its distinctive C-shaped cross-section, featuring a web (back), two flanges (top and bottom), and inward-turning lips that enhance rigidity. Produced through cold-forming or hot-rolling processes from carbon steel or low-alloy steel coils, C-channel steel provides an exceptional strength-to-weight ratio compared to traditional solid sections. This profile finds extensive application in building frameworks, roof purlin systems, wall girts, equipment supports, solar panel mounting structures, and mezzanine floor framing. The asymmetric open section allows for easy bolting and welding connections, making C-shaped steel one of the most versatile structural components in modern construction engineering.
C-Shaped Steel Technical Specifications
Our C-shaped steel channels are manufactured to precise dimensional tolerances in accordance with ASTM A36, ASTM A572 Grade 50, GB/T 706, EN 10162, and JIS G 3192 standards. Below are the key technical parameters available across our product range:
| Parameter | Specification Range |
|---|---|
| Web Height | 80 mm – 300 mm |
| Flange Width | 40 mm – 100 mm |
| Thickness | 1.5 mm – 6.0 mm (cold-formed) / 5.0 mm – 14.0 mm (hot-rolled) |
| Length | 1,000 mm – 12,000 mm (custom lengths available) |
| Yield Strength | ≥ 235 MPa (A36) / ≥ 345 MPa (A572 Gr.50) |
| Tensile Strength | 400–550 MPa (A36) / 450–620 MPa (A572 Gr.50) |
| Surface Treatment | Hot-dip galvanized (Z275), painted, or bare finish |
| Steel Density | 7.85 g/cm³ at 20°C |
Hot-dip galvanized C-shaped steel with a zinc coating weight of 275 g/m² per ASTM A653 delivers outstanding anti-corrosion properties, extending service life to 25+ years in moderate atmospheric exposure conditions. All products undergo rigorous quality inspections including dimensional verification, tensile testing per ASTM E8, and visual inspection before shipment.
Applications of C-Shaped Steel Channel
C-shaped steel profiles find extensive application across diverse industries due to their structural efficiency and installation versatility. In pre-engineered metal buildings, C-purlins serve as secondary structural members supporting roof sheeting and wall cladding, typically spaced at 1,200 mm to 1,800 mm intervals. In solar energy infrastructure, galvanized C-channels provide durable mounting frameworks for photovoltaic panel arrays. Industrial applications include conveyor support systems, cable tray framing, equipment platforms, and warehouse shelving structures. The cold-formed C-steel channel's lightweight profile—up to 30% lighter than equivalent hot-rolled sections—reduces overall structural dead load while maintaining required load-bearing capacity per AISI S100 design specifications.
Get a Competitive Quote for C-Shaped Steel
As a certified mill-direct manufacturer, we eliminate intermediary costs and pass savings directly to you. Our engineering team provides professional technical consultation to help you select the optimal C-shaped steel specifications for your project requirements.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
Ratings & Reviews
Know your supplier
Factory Introduction
Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.
Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.
Customer feedback
FAQ
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
