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Galvanized C Channel - ASTM Certified Factory Direct Supplier
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 Galvanized C Channel
| Property | Parameter | Description |
|---|---|---|
| Product Name | Galvanized C Channel | Hot-dip galvanized C-shaped structural steel channel |
| Material Grade | Q235B / Q345B / SS400 / S235JR / A36 | Carbon structural steel with galvanized coating |
| Standard Compliance | ASTM A36, GB/T 6725, EN 10162, JIS G3302 | International structural and galvanizing standards |
| Carbon Content (C) | ≤ 0.20% | Ensures weldability and formability |
| Manganese Content (Mn) | ≤ 1.40% | Improves strength and toughness |
| Phosphorus Content (P) | ≤ 0.045% | Controlled to prevent brittleness |
| Sulfur Content (S) | ≤ 0.045% | Minimized for improved ductility |
| Tensile Strength | 370 - 500 MPa | Per ASTM A36 / GB/T 700 requirements |
| Yield Strength | ≥ 235 - 345 MPa | Varies by material grade selected |
| Elongation | ≥ 20% | Measured on standard gauge length specimen |
| Dimensions (Height × Width × Lip) | Height: 80 - 300 mm; Width: 40 - 100 mm; Lip: 15 - 30 mm | Customizable profiles available upon request |
| Thickness | 1.5 - 6.0 mm | Cold-formed from galvanized steel coil or post-galvanized |
| Length | 6000 - 12000 mm | Custom lengths available |
| Zinc Coating Thickness | 40 - 275 g/m² | Hot-dip galvanized per ASTM A653 / EN 10346 |
| Surface Finish | Hot-dip galvanized / Pre-galvanized | Uniform zinc coating with excellent corrosion resistance |
| Application | Steel structures, purlins, wall girts, solar mounting, ceiling systems, industrial framing | Widely used in construction and infrastructure projects |
| Certification | ISO 9001, SGS, CE, Mill Test Certificate EN 10204 3.1 | Third-party inspection available on request |
| Packaging | Bundled with steel strips, waterproof paper or plastic wrap | Seaworthy packaging for export shipment |
Galvanized C Channel - ASTM Certified Factory Direct Supplier
Galvanized C channel is a versatile structural steel profile that serves critical roles in construction framing, solar panel mounting systems, industrial racking, and curtain wall support structures. Featuring a distinctive C-shaped cross-section with hot-dip or electro-galvanized zinc coating, this profile delivers outstanding anti-corrosion properties and exceptional load-bearing capacity at cost-effective mill-direct rates. As a certified factory direct supplier, we manufacture galvanized C channel steel in a comprehensive range of dimensions, thicknesses, and zinc coating weights to meet ASTM A36, ASTM A529, and ASTM A572 structural requirements. Whether you need standard C purlins for metal building construction or custom-fabricated galvanized channels for specialized industrial applications, our production lines deliver precision-rolled profiles with consistent dimensional tolerances and uniform zinc coverage across every batch.
What Is Galvanized C Channel?
Galvanized C channel — also referred to as C purlin or C section steel — is a cold-formed or hot-rolled structural steel member with a cross-section resembling the letter "C." The profile consists of a web, two flanges, and two small lips (in lipped variants) that enhance structural rigidity. The galvanization process applies a protective zinc coating, typically ranging from Z120 (120 g/m²) to Z275 (275 g/m²) per EN 10346, creating a metallurgical bond that shields the base steel from moisture, chemical exposure, and atmospheric corrosion. This combination of structural efficiency and long-term durability makes galvanized C channel a preferred choice for both interior and exterior applications where service life of 20–50 years is expected without recoating.
Galvanized C Channel Technical Specifications
Our galvanized C channel steel is manufactured to precise dimensional and mechanical standards, ensuring reliable performance across demanding structural applications.
| Parameter | Specification Range |
|---|---|
| Height (Web) | 80 mm – 300 mm |
| Flange Width | 40 mm – 100 mm |
| Thickness | 1.5 mm – 6.0 mm |
| Length | 1,000 mm – 12,000 mm (custom available) |
| Yield Strength | ≥ 235 MPa (Q235B) / ≥ 345 MPa (Q345B / ASTM A572 Gr.50) |
| Tensile Strength | 370–500 MPa (grade dependent) |
| Zinc Coating | Z120 – Z275 (120–275 g/m²) per EN 10346 |
| Base Steel Standards | ASTM A36, ASTM A572, GB/T 6725, EN 10162 |
| Surface Finish | Hot-dip galvanized / Pre-galvanized / Electro-galvanized |
| Lip Height | 15 mm – 25 mm (lipped C channel) |
All profiles undergo strict quality inspection including zinc coating thickness measurement via magnetic induction method per ASTM A123, dimensional verification with ±1 mm tolerance on web height, and mechanical property testing with certified mill test certificates (MTC EN 10204 3.1) provided with every shipment.
Key Applications of Galvanized C Channel Steel
The structural versatility and corrosion-resistant properties of galvanized C channels make them indispensable across multiple industries. In steel building construction, C purlins function as secondary framing members supporting roof sheeting and wall cladding, with spans reaching up to 8 meters depending on profile depth and loading conditions. Solar energy installations rely on galvanized C section steel for ground-mount racking systems, where the zinc coating ensures reliable outdoor performance for 25+ year project lifecycles. Additional applications include cable tray support systems, mezzanine floor framing, agricultural greenhouse structures, and modular partition framing in commercial interiors.
Get a Competitive Quote for Galvanized C Channel
As a factory direct manufacturer with annual production capacity exceeding 50,000 metric tons, we offer premium-grade galvanized C channel at competitive pricing with flexible MOQ starting from 5 tons. Our engineering team provides professional technical consultation to help you select the optimal profile dimensions and zinc coating weight for your specific 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
Product 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.
Guided by a customer-first philosophy, we have built a comprehensive sales and after-sales network. Our products are exported to Europe, North America, Southeast Asia and Africa, with long-term cooperation with well-known enterprises. Our team provides one-stop services, and we ensure prompt delivery through sufficient inventory and optimized logistics.
Upholding “Quality First, Integrity-based, Innovation-driven, Win-Win Cooperation”, Hongji is committed to becoming a global leader in the steel profile industry, continuously improving quality and service to create a better future with global customers.
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
