Download the Latest Strut C Channel Specifications and Dimensions.
ASTM A572 Grade 50 Galvanized Steel C Channel Purlin | Heavy Duty Structural Steel Profile
Royal Steel Group Hot-Dip Galvanized C-Channel / Steel Purlin
Standard: ASTM A572 / A653 | Grade: 50 (345 MPa Yield Strength)
Key Features:
High Strength: Grade 50 steel reduces structural weight while maintaining safety.
Anti-Corrosion: HDG coating thickness meets ASTM A123 standards.
Customizable: CNC punching, cutting, and bending to your specific drawings.
Applications: Industrial warehouses, solar racks, and agricultural structures.
| Key Features | Product Description |
| Premium Material | Authentic ASTM A572 Grade 50 Structural Steel |
| Surface Finish | Ultra-Durable Hot-Dip Galvanized (Weather Resistant) |
| Zinc Protection | Heavy Coating (40–120 μm) for Extreme Environments |
| Dimensions | Custom Profile (C/U/Z Channels) |
| Wall Thickness | Versatile 2.0mm–6.0mm for various load requirements |
| Length Options | Container-optimized lengths (6m/12m) or Bespoke |
| One-Stop Service | Ready-to-install: Pre-punched holes & Exact cutting |
A572 Gr 50 Hot-Dip Galvanized Steel C Channel Chemical Composition & Mechanical Properties
Strut C Channel Chemical Composition
| Element | C (%) | Mn (%) | Si (%) | P (%) | S (%) | Microalloying Elements |
| ASTM A572 Gr 50 | ≤ 0.23 | ≤ 1.35 | 0.15 – 0.40 | ≤ 0.040 | ≤ 0.050 | Trace (V, Nb) |
Strut C Channel Mechanical Property
| Yield Strength | Tensile Strength | Elongation |
| ≥ 345 MPa | 450 – 620 MPa | ≥ 18% |
Strut C Channel (also called Unistrut Channel / Steel Strut Channel) is widely used in electrical supports, cable tray systems, pipe supports, solar mounting structures, and industrial frameworks.
Below are the most commonly used sizes for international construction and industrial projects.
| Size (mm) | Width (mm) | Height (mm) | Thickness (mm) | Weight (kg/m) | Typical Application |
| 41 × 21 | 41 | 21 | 1.5 – 2.0 | 1.3 – 1.8 | Light electrical supports |
| 41 × 41 | 41 | 41 | 2.0 – 2.5 | 2.4 – 3.2 | Cable trays, conduit support |
| 41 × 62 | 41 | 62 | 2.0 – 2.5 | 3.0 – 3.8 | Medium structural supports |
| 41 × 82 | 41 | 82 | 2.5 – 3.0 | 3.8 – 4.8 | Pipe supports |
| 41 × 124 | 41 | 124 | 2.5 – 3.0 | 5.2 – 6.5 | Industrial frameworks |
| 41 × 152 | 41 | 152 | 3.0 – 4.0 | 6.8 – 8.5 | Heavy-duty equipment support |
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Photovoltaic (PV) Mounting Systems
High strength mounting rails – Engineered as high strength rails, providing a strong and solid foundation for your solar arrays. Superior hot-dip galvanization for long-term durability in the outdoors.
Industrial & commercial steel frames
Serving as purlins and girts What are purlins and girts? These purlin and girt sections are vital structural members to the success of your warehouse or prefab metal building because they guarantee superior load distribution!
Secondary structural support
Flexible framing systems for roofing and cladding applications. Acting as secondary beams, these channels provide strong support for metal sheets, maintaining the stability and straightness of the building envelope .
Robust Agricultural Infrastructure
A perfect option for greenhouses, animal barns, and storage sheds. The additional zinc layer provides excellent protection from moisture and organic matter induced rust in the fields.
Solar Mounting Structures
Industrial & Warehouse Structures
Roofing & Wall Support
Roofing & Wall Support
Load Requirements: Choose ASTM A572 Gr 50 for heavier loads.
Environmental Conditions: Hot-dip galvanized channels for coastal or tropical areas.
Application Type: Cable trays, racking, or pipe supports.
Size & Thickness: Determine based on span and weight requirements.
Our engineers can help select the right Strut C Channel for your project, ensuring structural safety and cost efficiency.
Royal Steel Group provides premium ASTM A572 Grade 50 Hot-Dip Galvanized C-Channels. Engineered for solar mounting and steel building systems, our products feature superior load capacity and long-term corrosion protection. Partner with Royal Steel Group for reliable quality and efficient global logistics.
Highly Competitive Factory Prices
We offer stable, transparent pricing for bulk orders, project bidding and long-term partnerships.
Strong Production Capacity
Professional teams and advanced equipment guarantee consistent quality and on-time delivery for large orders.
Customized Processing Services
We provide full customization of dimensions, thickness, punching, grooving, cutting and other specifications.
Proven Global Export Experience
Our C-section steel is widely exported and applied in photovoltaic bracket and steel structure projects worldwide.
Strict Quality Control
All products undergo rigorous testing on dimensional accuracy, mechanical properties and galvanizing quality to meet industry standards.
Professional Packaging & Logistics
Export-standard packaging ensures safe transportation by sea container and international logistics.
Packaging Standards: Double-layer protection (waterproof woven bag + moisture-proof paper), coated products with scratch-resistant film; categorized and bundled, with specifications, quantity, and moisture-proof warnings clearly marked to prevent damage.
Transportation Guarantee: Adaptable to various logistics methods, securely loaded and fixed, moisture-proof and impact-proof; full logistics tracking to ensure goods arrive intact and on time; supports global delivery and customized transportation solutions.
Delivery:
Time: 15-25 days after order confirmation.
Transportation Methods: Sea, road, rail, container transport, maximizing load capacity.
Provide complete export documents.
Maintain stable partnerships with shipping companies such as MSK, MSC, and COSCO to build an efficient logistics service chain and ensure your satisfaction.
We strictly adhere to the ISO9001 quality management system standards, controlling the entire process from packaging material procurement to transportation vehicle scheduling.
Q1: Could we adjust the size and spec based on request?
A: Yes The size and thickness, punching, slotting, length and surface treatment can be customized according to the need of the project.
Q2: What kind of working conditions are suitable for your products?
A: They are also widely used in solar mounting system, industrial building, roof & wall, railings, infrastructure project etc.
Q3: What is the lead time?
A: Depend on the quantity, Normally it is 15 to 30 days.
Q4: Do you provide MTC?
A: Yes, we can supply the material test certificate (MTC) and the inspection reports,completly accordance with the ASTM standards.
Q5: What is the MOQ?
A: The standard MOQ is 20 tons; trial orders can be negotiated.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
