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Galvanized U Channel Steel C12x20.7 C12x30 ASTM A36 A588 Structural C Channel
Product Overview
Royal Steel Group provides galvanized U channel steel in popular structural sizes such as C12x20.7 and C12x30. These channels are made from structural steel grades like ASTM A36 and ASTM A588, which provide good mechanical performance with the added corrosion protection of a galvanized surface.
The U/C shape is a cost-effective structural solution for framing, supports, bracing, industrial buildings, and outdoor uses. Custom lengths, quantities, and packaging are also offered as per project needs.
Product Detail
| Item | Details |
| Product Name | C Channel Steel / American Standard Channel |
| Standard | ASTM A6/A6M |
| Material Grade | ASTM A36 / ASTM A572 / ASTM A588 |
| Production Process | Hot Rolled |
| Shape | C Shape Channel |
| Common Sizes | C3×4.1, C4×5.4, C5×6.7, C6×8.2, C8×11.5, C10x15.3, C12x20.7, C12x30 |
| Length | 6m / 9m / 12m or Customized |
| Surface | Black / Painted / Galvanized |
| Application | Construction, Industrial Structures, Equipment Frames |
| Inspection | MTC, SGS/BV Third-party Inspection Available |
ASTM C Channel Size
| Designation (Imperial) | Designation (Metric) | Unit Weight (kg/m) | H (mm) | B (mm) | t₁ (mm) | t₂ (mm) | d (mm) |
| C3×4.1 | C75×6.1 | 6.1 | 76 | 35 | 4.3 | 6.9 | 38 |
| C3×5 | C75×7.4 | 7.4 | 76 | 37 | 6.6 | 6.9 | 38 |
| C3×6 | C75×8.9 | 8.9 | 76 | 40 | 9 | 6.9 | 38 |
| C4×5.4 | C100×8 | 8 | 102 | 40 | 4.7 | 7.5 | 66 |
| C4×7.25 | C100×10.8 | 10.8 | 102 | 43 | 8.2 | 7.5 | 60 |
| C5×6.7 | C130×10.4 | 10.4 | 127 | 44 | 4.8 | 8.1 | 83 |
| C5×9 | C130×13 | 13 | 127 | 47 | 8.3 | 8.1 | 86 |
| C6×8.2 | C150×12.2 | 12.2 | 152 | 48 | 5.1 | 8.7 | 107 |
| C6×10.5 | C150×15.6 | 15.6 | 152 | 51 | 8 | 8.7 | 107 |
| C6×13 | C150×19.3 | 19.3 | 152 | 54 | 11.1 | 8.7 | 105 |
| C7×9.8 | C180×14.6 | 14.6 | 178 | 53 | 5.3 | 9.3 | 130 |
| C7×12.25 | C180×18.2 | 18.2 | 178 | 55 | 8 | 9.3 | 130 |
| C7×14.75 | C180×22 | 22 | 178 | 58 | 10.6 | 9.3 | 125 |
| C8×11.5 | C200×17.1 | 17.1 | 203 | 57 | 5.6 | 9.9 | 156 |
| C8×13.75 | C200×20.5 | 20.5 | 203 | 59 | 7.7 | 9.9 | 156 |
| C8×18.75 | C200×27.9 | 27.9 | 203 | 64 | 12.4 | 9.9 | 156 |
| C9×13.4 | C230×19.9 | 19.9 | 229 | 61 | 5.9 | 10.5 | 177 |
| C9×15 | C230×22 | 22 | 229 | 63 | 7.2 | 10.5 | 177 |
| C9×20 | C230×30 | 30 | 229 | 67 | 11.4 | 10.5 | 173 |
| C10×15.3 | C250×22.8 | 22.8 | 254 | 65 | 6.1 | 11.1 | 203 |
| C10×20 | C250×30 | 30 | 254 | 69 | 9.6 | 11.1 | 203 |
| C10×25 | C250×37 | 37 | 254 | 73 | 13.4 | 11.1 | 203 |
| C10×30 | C250×45 | 45 | 254 | 76 | 17.1 | 11.1 | 203 |
| C12×20.7 | C310×30.8 | 30.8 | 305 | 74 | 7.2 | 12.7 | 248 |
| C12×25 | C310×37 | 37 | 305 | 77 | 9.8 | 12.7 | 248 |
| C12×30 | C310×45 | 45 | 305 | 80 | 13 | 12.7 | 248 |
| C15×33.9 | C380×50.4 | 50.4 | 381 | 86 | 10.2 | 16.5 | 308 |
| C15×40 | C380×60 | 60 | 381 | 89 | 13.2 | 16.5 | 308 |
| C15×50 | C380×74 | 74 | 381 | 94 | 18.2 | 16.5 | 308 |
View the complete ASTM C Channel specification
ASTM C Channel Customized Content
| Customization Category | Options Available | Description / Range | Minimum Order Quantity (MOQ) |
|---|---|---|---|
| Dimension Customization | Width (B), Height (H), Thickness (tw / tf), Length (L) | Width: 25–90 mm; Height: 80–300 mm; Web Thickness: 3–12 mm; Flange Thickness: 3–15 mm; Length: 6–12 m (custom cut available) | 20 tons |
| Processing Customization | Drilling / Hole Cutting, End Processing, Prefabricated Welding | Custom holes, slotted holes, beveling, grooving, and welding preparation for ASTM A572 Grade 42/50/55/60 structural applications | 20 tons |
| Surface Treatment Customization | Hot-Rolled Black Surface, Painted / Epoxy Coating, Hot-Dip Galvanizing | Corrosion-resistant coating options available based on project environment and service life requirements | 20 tons |
| Marking & Packaging Customization | Custom Marking, Shipping Method | Marking includes grade, heat number, size, batch; packaging designed for container loading or bulk flatbed transport | 20 tons |
KEY FEATURES
1. Corrosion Protection
The galvanized zinc coating helps protect the steel surface from moisture and atmospheric corrosion.
2. Reliable Structural Performance
ASTM A36 and A588 grades provide dependable strength for a variety of structural applications.
3. Popular C Channel Sizes
C12x20.7 and C12x30 provide practical options for different load-bearing requirements.
4. Durable Surface
Hot-dip galvanizing is suitable for applications exposed to outdoor or humid environments.
5. Custom Supply
Customized lengths, cutting, quantities, packaging, and inspection requirements can be arranged.
Surface Finish
Conventional Surfaces
Galvanized Surface
Spray Paint Surface
Application
1. Steel Building Structures: Used for framing, supports, bracing, and secondary structural components.
2. Industrial Facilities: Suitable for equipment supports, machinery frames, platforms, and factory structures.
3. Outdoor Structures: Galvanized channels are suitable for applications exposed to weather and humid environments.
4. Infrastructure Projects: Used in bridges, walkways, utility structures, supports, and general engineering projects.
Our Advantages
1.High Product Quality - You Can Trust Quality control is tightened to keep the hot rolled steel channel performance stable.
2.Supply from the Factory Direct - The price is competitive and the supply is stable for distributors, contractors and project buyers.
3.Custom Cutting - Customized lengths, cutting, packing and specification are available.
4.Full Paperwork - MTC and appropriate inspection documentation can be supplied along with the order.
5.Worldwide Export Service - We serve our international customers with packaging, documentation, shipping and logistics coordination.
Royal Steel Group offers dependable solutions for ASTM A36 and ASTM A572 C Channel Steel to contractors, fabricators, distributors and engineering projects anywhere in the world.
Packaging & Shipping
Galvanized U Channels are tightly secured with steel straps and waterproof wrapping materials to avoid moisture, rust and damage while being handled and transported. Standard export packaging for container, open top container and bulk shipping, and customized packing and logistics solutions for various sizes, quantities and destinations.
FAQ
Q1: Can you provide customized lengths?
A: Yes, customized lengths, cutting, and packaging are supported.
Q2: Do you provide MTC and inspection certificates?
A: Yes, MTC and relevant inspection documents can be provided.
Q3: Do you have galvanized U Channels in stock?
A: Stock depends on size and quantity. Contact us for current availability.
Q4: What is the MOQ?
A: MOQ depends on the size and quantity. Flexible order options are available.
Q5: How long is the delivery time?
A: Lead time depends on stock, quantity, and destination. We confirm the schedule with each quotation.












