Structural Channel Steel – U-shaped profile for frames, supports and construction.
Multiple Steel Grades – Q235B, Q355B, SS400, S355JR and ASTM A36 available.
Standard and Custom Sizes – UPN, UPE and customized channel sections supported.
Project-ready Processing – Cutting, drilling, welding, painting and galvanizing available.
Complete Export Documents – COO, MTC, export license and shipping documents available.
Carbon steel channel bar is a structural steel profile with a U-shaped or C-shaped cross section. A typical channel section consists of one vertical web and two horizontal flanges, providing practical bending strength, rigidity and convenient connection surfaces.
Hot rolled channel steel is widely used for steel buildings, machinery frames, equipment supports, platforms, bridges, vehicle structures, warehouse systems and general industrial fabrication.
Henan GDD supplies standard U channel, UPN, UPE and parallel flange channel sections in multiple structural steel grades. Customized cutting, drilling, punching, welding preparation, primer painting and hot dip galvanizing can be arranged according to customer drawings and project requirements.
| Item | Specification |
|---|---|
| Product Name | Carbon Steel Channel Bar / U Channel Steel / Structural Channel Steel |
| Section Type | Hot Rolled U Channel, UPN, UPE, Parallel Flange Channel, Cold Formed C Channel or Customized |
| Common Grades | Q195, Q235B, Q355B, SS400, S235JR, S275JR, S355JR, ASTM A36, ASTM A572 Grade 50 or Customized |
| Applicable Standards | ASTM A6/A6M, ASTM A36, ASTM A572, EN 10025, EN 10365, JIS G3101, JIS G3192, GB/T 706 or Customer Specification |
| Web Height | 50 mm – 400 mm or Customized |
| Flange Width | 30 mm – 110 mm or Customized |
| Web Thickness | 4 mm – 15 mm or Customized |
| Flange Thickness | 6 mm – 20 mm or Customized |
| Length | 5.8 m, 6 m, 9 m, 11.8 m, 12 m or Customized |
| Production Method | Hot Rolled, Cold Formed, Welded or Customized Fabrication |
| Surface Condition | Black Mill Finish, Pickled, Oiled, Shot Blasted, Primer Painted, Hot Dip Galvanized or Customized |
| End Condition | Mill End, Saw-cut End, Flame-cut End, Deburred End or Machined End |
| Dimensional Tolerance | According to Applicable Standard or Customer Drawing |
| Processing Service | Cutting, Drilling, Punching, Slotting, Welding, Beveling, Painting and Galvanizing |
| Inspection | MTC, Dimension Inspection, Surface Inspection, Mechanical Test and Third-party Inspection |
| Applications | Steel Structures, Machinery Frames, Equipment Supports, Bridges, Platforms, Vehicles and Warehouses |
| Available Documents | MTC, Certificate of Origin, Export License Where Required, Commercial Invoice, Packing List, Bill of Lading and Customs Documents |
| Packing | Steel Strip Bundles, Waterproof Wrapping, Wooden Supports and Customized Seaworthy Export Packing |
| Trade Terms | EXW, FOB, CFR, CIF |
Available channel sizes, sectional tolerances and mechanical properties depend on the selected steel grade, manufacturing method and applicable standard. Final specifications should be confirmed through the purchase order, approved drawing and Mill Test Certificate.
Carbon steel channel bar is a structural profile formed with one web and two flanges. Its U-shaped cross section provides directional bending strength and convenient flat surfaces for welding, bolting and structural connections.
Channel steel is also commonly called U channel, steel channel, structural channel, channel iron or C channel. However, hot rolled structural channels and cold formed C channels are manufactured differently and should be specified separately.
Hot rolled channel steel is generally used for medium and heavy structural applications, while cold formed channels are often selected for lighter framing, purlins and secondary building components.
Hot rolled U channel is manufactured at elevated temperatures and provides a strong structural section for buildings, equipment frames, bridges, platforms and machinery.
UPN channel has tapered internal flange surfaces and is widely used in European-style structural fabrication, frames, supports and construction systems.
UPE channel has parallel flange surfaces, making connection, drilling and assembly more convenient for certain structural designs.
Parallel flange channels provide consistent flange thickness and flat internal surfaces. They are commonly used in structural frames, machinery and engineering projects.
Cold formed C channel is produced by bending or roll forming steel strip. It normally has a thinner wall and is used for purlins, partitions, light frames, shelves and secondary structural components.
Channel steel can be hot dip galvanized after cutting and fabrication. The zinc coating improves corrosion protection for outdoor construction, solar supports, utility structures and humid environments.
Q235B is a widely used structural carbon steel grade providing practical strength, weldability and economical cost for buildings, machinery and general fabrication.
Q355B provides higher yield strength than Q235B and can be selected for structures requiring increased load-bearing capacity or more efficient section design.
ASTM A36 is widely used for structural frames, platforms, machinery supports, equipment bases and general engineering applications.
ASTM A572 Grade 50 provides higher minimum yield strength and is suitable for bridges, industrial structures and demanding load-bearing components.
SS400 is a commonly specified JIS structural steel grade used for construction, machinery frames, welded structures and general steel fabrication.
S235JR and S355JR are frequently specified for European structural projects. The appropriate grade should be selected according to design strength and the applicable engineering standard.
Carbon steel channels are used as beams, frame members, edge supports and reinforcement sections in steel buildings, warehouses and prefabricated structures.
Machinery manufacturers use channel steel for equipment bases, machine frames, conveyor supports, protective structures and mounting assemblies.
Bridges, industrial platforms and walkways use channels for cross members, secondary beams, edge framing and support systems.
Vehicle and trailer manufacturers use structural channels for chassis components, side frames, cross members and equipment mounting structures.
Other applications include solar mounting structures, agricultural equipment, shipbuilding, warehouse racks, stairs, gates and general welded fabrication.
The web provides vertical depth while the flanges resist bending and offer convenient surfaces for structural connections.
Multiple structural grades and section sizes are available for light, medium and heavy engineering applications.
Carbon steel channel provides practical structural performance at a lower material cost than stainless steel and many specialized alloys.
Channel sections can be cut, drilled, punched, welded, painted and galvanized according to fabrication drawings.
UPN, UPE and other standardized profiles support repeatable design, efficient procurement and convenient project assembly.
Black, shot-blasted, primer-painted and galvanized surfaces can be selected according to the service environment.
UPN channel normally has internally tapered flanges. It is a traditional structural profile widely used for frames, beams and supports.
UPE channel has parallel flange surfaces. The parallel geometry can simplify bolted connections, plate installation and back-to-back channel assembly.
The correct profile should be selected according to the structural drawing, required section properties, connection design and locally applicable standard.
Hot rolled channel is produced as a structural section and is generally suitable for heavier loading, machinery frames and primary construction components.
Cold formed C channel is produced from steel strip or sheet and is usually lighter, thinner and more suitable for purlins, partitions and secondary framing.
The products should not be considered interchangeable without structural evaluation. Section thickness, radius, strength, buckling behavior and connection design must be reviewed.
Q235B is widely used for ordinary structural fabrication, machinery frames, warehouses and general construction.
Q355B provides increased yield strength and may be selected for higher loads, longer spans and more demanding industrial structures.
Grade selection should be confirmed by the project engineer based on loading conditions, welding requirements, operating temperature and the applicable design code.
Black channel steel retains the normal hot rolled mill surface. It is economical and suitable for indoor construction or components that will be painted after fabrication.
Galvanized channel steel has a zinc coating that improves outdoor corrosion protection. It is commonly used for solar mounting, outdoor frames, utilities and humid environments.
Hot dip galvanizing is generally completed after cutting, drilling and welding so that fabricated edges, holes and welded areas receive zinc coverage.
Black mill finish is the standard hot rolled surface and may include normal mill scale. It is suitable for general fabrication and subsequent coating.
Shot blasting removes loose mill scale and prepares the surface for primer or protective paint.
Primer painting provides temporary protection during transportation, fabrication and installation.
Hot dip galvanizing creates a protective zinc coating for outdoor and industrial environments.
Galvanizing design should consider vent holes, drainage holes, dimensional distortion and coating thickness requirements.
Henan GDD can arrange channel cutting according to customer-required installation lengths. Saw cutting, flame cutting and other suitable methods can be selected according to section size and tolerance.
Drilling, punching, slotting, beveling, welding, primer painting and hot dip galvanizing can be arranged for project-ready structural components.
Customers should provide drawings showing the steel grade, section size, length, hole diameter, hole position, cutting angle, tolerance, surface treatment and required quantity.
Carbon steel channel can be welded using common structural welding processes when the procedure matches the selected grade, section thickness and joint design.
Welding consumables, preheating, heat input, joint preparation and distortion control should be determined according to the steel grade and applicable fabrication standard.
Welded areas should be cleaned and receive suitable primer, paint, zinc-rich coating or galvanizing treatment where corrosion protection is required.
Selection should consider steel grade, channel type, web height, flange width, web thickness, flange thickness, length, loading direction and connection method.
Q235B, SS400, S235JR and ASTM A36 are commonly used for general construction. Q355B, S355JR and ASTM A572 Grade 50 may be selected for higher-strength applications.
Structural dimensions and load capacity should be verified by a qualified engineer. Complete section specifications and fabrication drawings should be supplied for accurate quotation.
Henan GDD can provide the technical, commercial and customs documents required for compliant international shipment according to the destination country and agreed contract terms.
Available documents can include the Mill Test Certificate, Certificate of Origin, export license where required, commercial invoice, packing list, bill of lading and customs declaration documents.
Product photographs, dimensional inspection records, processing photographs, packing photographs, loading photographs and third-party inspection reports can also be arranged.
Destination-specific certificates, chamber endorsement, legalization and customs requirements should be confirmed before order placement.
Henan GDD supplies carbon steel channels to steel structure companies, machinery manufacturers, construction contractors, vehicle factories, solar mounting producers and global steel distributors.
We support UPN, UPE and other channel sections, multiple steel grades, customized lengths, cutting, drilling, punching, welding, painting and galvanizing.
MTC, Certificate of Origin, export license where required and complete commercial and shipping documents can be provided for compliant export.
From specification review and quotation to production, fabrication, inspection, packing, documentation and loading, our team provides one-stop export support for channel steel orders.
Before shipment, inspection can include steel grade, web height, flange width, thickness, length, straightness, section accuracy, surface condition, hole position, quantity and package weight.
Chemical composition, yield strength, tensile properties, dimensional tolerances and third-party inspection can be arranged according to the applicable standard.
MTC, dimensional inspection records, product photographs, processing photographs, packing photographs and loading photographs can be provided according to order requirements.
Carbon steel channels are normally packed in reinforced steel strip bundles with waterproof wrapping, wooden supports and identification labels.
Painted or galvanized channels can receive additional protective materials to reduce scratches, coating damage and moisture exposure during transportation.
Standard lengths can be loaded in containers. Extra-long sections or large project quantities may require open-top containers, flat racks or break-bulk shipment.
Shipment can be arranged under EXW, FOB, CFR or CIF terms. Commercial invoice, packing list, bill of lading, MTC and Certificate of Origin can be provided as agreed.
It is used for steel buildings, machinery frames, equipment supports, bridges, platforms, vehicle structures, warehouses and general fabrication.
UPN channels normally have tapered internal flange surfaces, while UPE channels have parallel flange surfaces.
Common grades include Q235B, Q355B, SS400, S235JR, S355JR, ASTM A36 and ASTM A572 Grade 50.
Yes. Hot dip galvanizing can be arranged for outdoor structures, solar supports and projects requiring improved corrosion protection.
Yes. Standard and customized lengths can be supplied according to project drawings, shipping limits and order quantity.
Yes. Cutting, drilling, punching, slotting, beveling, welding, painting and galvanizing can be arranged.
ASTM A36 is widely used for general structural fabrication. Final suitability should be confirmed according to loading and the applicable engineering standard.
Yes. MTC, Certificate of Origin, export license where required, commercial invoice, packing list, bill of lading and other agreed export documents can be provided.
Please provide the grade, channel type, section size, length, surface treatment, processing drawing, quantity, destination port and required documents.
Yes. Third-party inspection can be arranged according to the inspection scope confirmed in the purchase contract.
Looking for Q235B, Q355B, SS400, S355JR or ASTM A36 channel steel for construction, machinery, equipment supports or structural frames?
Send Henan GDD your required grade, channel type, section dimensions, length, surface treatment, processing drawing, order quantity, destination port and document requirements. Our team will provide a professional quotation, packing plan and compliant export solution.
