Hot-Dip Galvanized 41×21 C Strut Channel, Bulk Supply & Custom Fabrication for All Construction Support Works
This hot-dip galvanized 41×21 C-shaped metal strut belongs to lightweight cold roll formed structural steel with robust anti-rust galvanized coating. Its standardized cross dimension measures 41mm web height × 21mm flange width. Integrated advantages of high mechanical strength, powerful anti-corrosion capacity and simple field assembly make it widely adopted in solar PV mounting frames, cable tray hangers, MEP seismic bracing and building curtain wall supporting systems. It stands out as an economical lightweight load-bearing member for all kinds of construction engineering.
Fabricated from premium Q235B mild carbon steel via continuous cold bending molding lines, the channel achieves ultra-high forming precision. Cross section dimensional tolerance is controlled within ±0.3mm, and straightness is limited below 1.5mm per meter. Compact structural layout delivers superior rigidity along with reliable bending, torsion and shear resistance. It steadily carries various light-duty loads and satisfies supporting demands of diverse engineering environments.
We provide full complete specification options: regular wall thickness covers 1.5mm, 2.0mm and 2.5mm; custom gauge range from 1.0mm to 3.0mm is available upon request. Standard factory lengths are 3m and 6m, while custom cut lengths ranging from 1m to 12m can be tailored to match project plans. Standard 14×28mm elongated oval perforations are preset on the profile, with adjustable hole pitch for flexible assembly. Matched with exclusive connecting hardware, the strut enables fast bolt fastening without complex welding work, drastically shortening construction cycles and cutting labor expenditures.
| Parameter Item |
Detailed Information |
| Executed Industry Standard |
ASTM International Standard |
| Manufacturing Origin |
China |
| Alloy Classification |
Non-alloy carbon steel |
| Fast Small Order Lead Time |
Within 7 working days |
| Cross Section Profile |
C & U universal strut channel |
| Overall Dimensional Tolerance |
±1% |
| Core Usage |
Construction structural support channel |
| Commercial Product Name |
Cold Rolled Galvanized C/U Metal Support Channel |
| Surface Appearance |
Natural silver zinc matte finish |
| Quality Management Certificate |
ISO9001 |
| Main Export Loading Port |
Tianjin Port |
| Core Function |
Engineering load-bearing support framework |
Wide Application Coverage
This galvanized 41×21 C strut boasts extremely versatile application prospects. It serves as diagonal bracing for rooftop distributed solar stations and ground photovoltaic power plants, suspension brackets for cable tray systems, and primary structural components of mechanical & electrical pipeline seismic support assemblies.
Besides energy and electrical projects, it can build lightweight supporting frameworks for architectural decorative keels, mechanical equipment bases and storage rack systems. It fits perfectly with industrial workshops, commercial complexes and outdoor construction projects. Stable mechanical performance and long anti-corrosion service lifespan make it the top-choice structural material for all lightweight load-bearing engineering solutions.

Frequently Asked Questions
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Are you an in-house production factory or export trading firm?
We are a professional steel profile manufacturing factory. All global clients are warmly invited to arrange factory site visits anytime. Our production workshop is equipped with full sets of advanced automated production machines for steel structure and metal channel processing. Full independent in-house production helps us stabilize product quality and deliver competitive factory direct wholesale prices.
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How long is your standard mass order delivery period?
Our sales specialists will confirm accurate production lead time according to your order specifications and quantity. Customers placing large bulk orders are recommended to coordinate production schedules with our order management team in advance. Normally all finished goods will be ready for shipment within 30 days after deposit receipt, and separate partial shipments are acceptable for oversized orders.
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Can your engineering team provide customized structural design service?
Yes, our professional engineering group can create exclusive structural schemes fully based on your project requirements. We will supply architectural sketches, structural schematic drawings, processing detail blueprints and field installation drawings for your step-by-step confirmation during the whole project cycle.
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What payment terms do we implement?
30% advance deposit after order confirmation, the remaining 70% full balance must be settled before cargo delivery.
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How do we carry out full-range quality control throughout production?
a) Pre-design quality management: Foresee potential construction hidden risks in advance and formulate high-stability structural design solutions;
b) Raw material incoming inspection: Only fully qualified certified steel raw materials are put into mass production;
c) On-site production supervision: Precision automated manufacturing processes, skilled veteran operators and multiple rounds of strict quality spot checks during production.