Download the Latest C CHANNLE Specifications and Dimensions.
ASTM A36 C Channel Steel Supplier | American Standard C Purlin
American Standard Channel Steel serves as a core secondary structural component in modern construction. It is extensively applied in commercial buildings, industrial facilities, storage warehouses, equipment bearing platforms and structural reinforcement systems across global construction projects.
Royal Steel Group - C Channel Supplier specializes in supplying AASTM A36 Channel. All our products feature precise dimensional accuracy, consistent mechanical performance and rigorous quality inspection standards. We mainly export these structural channels to North America, Mexico, Latin America, Southeast Asia and other mainstream international construction markets, accumulating rich overseas project supply experience.
Boasting an optimal strength-to-weight ratio and outstanding machinability, ASTM standard C Shape Steel Channel are highly cost-effective for various structural applications. They are widely adopted for secondary support beams, wall bracing systems, roof purlins and general structural framing, delivering stable performance while cutting down overall construction costs.
| Item | Specification |
| Product Name | ASTM C Channel Steel / Structural Channel |
| Standard | ASTM A36 |
| Material Grade | ASTM A36 |
| Shape | C Shape / U Channel Profile |
| Size Range | C3×4.1, C4×5.4, C5×6.7, C6×8.2, C8×11.5 |
| Surface Finish | Black / Painted / Galvanized |
| Length | 6m / 12m / Customized |
| Processing | Cutting, Drilling, Welding, Punching |
| Application | Construction, Industrial, Mechanical Structures |
| Inspection | MTC, SGS, BV Third-party Inspection |
| Property | Metric (SI) | Imperial (US) |
| Yield Strength (min) | ≥ 250 MPa | ≥ 36,000 psi |
| Tensile Strength | 400 - 550 MPa | 58,000 - 80,000 psi |
| Elongation (min) | ≥ 20 % (in 200 mm) | ≥ 20 % (in 8 in) |
| Elongation (min) | ≥ 23 % (in 50 mm) | ≥ 23 % (in 2 in) |
| Modulus of Elasticity | 200 GPa | 29,000 ksi |
ASTM A36 American Standard Channels (Standard Channels - C Shape)
| Inches | lbs/ft | d (mm) | b (mm) | tw (mm) | tf (mm) |
| C3 x 3.5 | 3.5 | 76.2 | 35.8 | 4.3 | 6.9 |
| C3 x 4.1 | 4.1 | 76.2 | 35.8 | 4.3 | 6.9 |
| C4 x 5.4 | 5.4 | 101.6 | 40.2 | 4.7 | 7.5 |
| C5 x 6.7 | 6.7 | 127 | 44.5 | 4.8 | 8.1 |
| C6 x 8.2 | 8.2 | 152.4 | 48.8 | 5.1 | 8.7 |
| C8 x 11.5 | 11.5 | 203.2 | 57.4 | 5.6 | 9.9 |
| C10 x 15.3 | 15.3 | 254 | 66 | 6.1 | 11.1 |
| C12 x 20.7 | 20.7 | 304.8 | 74.7 | 7.2 | 12.7 |
| C15 x 33.9 | 33.9 | 381 | 86.4 | 10.2 | 16.5 |
Click the Button on The Right
High Strength Structural Steel
ASTM A36 Steel Structure Channel is one of the most widely used carbon structural steel grades worldwide.
Key advantages:
✔ Good tensile strength and yield strength
✔ Excellent weldability
✔ Easy machining and fabrication
✔ Reliable performance in structural applications
✔ Cost-effective for large-scale projects
| Core Strengths | Details |
| Global Structural Steel Supplier | Royal Steel Group offers integrated steel solutions for industrial facilities, warehouses, infrastructure, equipment producers and steel contractors. |
| International Standard Production | Products conform to ASTM standards. We implement strict quality control and provide full export documentation. |
| Customized Service Package | Custom beam lengths, surface treatment, fabrication and large-volume project supply are available. |
| Proven Export Expertise | We support buyers in North America, Mexico, Latin America, Southeast Asia, Middle East and Africa with steady supply and reliable logistics. |
| Strict Batch Inspection Items | Full Set of Export Documents |
| Chemical composition analysis | Mill Test Certificate (MTC) |
| Mechanical performance testing | Detailed packing list |
| Precision dimensional verification | Commercial invoice |
| Surface condition examination | Third-party inspection report (on request) |
| Actual weight inspection and confirmation | |
| Every production batch undergoes systematic quality checks to ensure full compliance with project standards: |
| Application Fields | Usage Details |
| Building Secondary Beams | Act as secondary beams, floor supports and connecting elements in lightweight frames. Achieve balanced load transfer and lower steel consumption. |
| Roof Purlin Systems | Fit industrial workshops, warehouses, commercial and prefab steel buildings to support roof sheets, panels and insulation layers. |
| Wall Support Structures | Applied in external wall framing, curtain wall supports, building envelopes and steel building reinforcement. |
| Equipment Base & Mechanical Frames | Great for machine foundations, equipment platforms, conveyor frames and maintenance access platforms. |
| Industrial Plant Reinforcement | Suitable for factory upgrades, structural reinforcement, light load-bearing systems and steel structure extensions. |
Royal Steel Group adopts standardized export packaging solutions to protect products during long-distance transportation. All steel materials are firmly bundled with steel strips and wrapped with waterproof layers to avoid damage, deformation and moisture. We also deliver secure container loading and professional custom marking services tailored to client requirements.
To accommodate different project volumes and delivery needs, we offer flexible shipping alternatives, including full container load (FCL) shipments and break bulk cargo delivery. For large and complex engineering projects, we also provide customized one-stop transportation solutions to ensure safe and punctual delivery worldwide.
Q1: What specification applies to your Structural C Channel?
All of our structural C channels are manufactured in full compliance with the ASTM A36 standard, ensuring consistent mechanical performance for global construction projects.
Q2: What are your regular export sizes?
We stock and export the most widely used American standard channel sizes, including C3×4.1, C4×5.4, C5×6.7, C6×8.2 and C8×11.5.
Q3: Do you offer galvanized C channel steel?
Yes. We provide multiple surface finishes to suit different project environments, including original black steel, custom painting and hot‑dip galvanizing.
Q4: Is custom processing available for C channels?
Absolutely. We offer full pre‑fabrication services such as custom cut-to-length, drilling, punching and tailored fabrication to meet specific design needs.
Q5: What types of projects use ASTM C Channel Steel?
C channel steel is highly versatile for secondary structural applications, commonly adopted in steel warehouses, industrial factories, roof purlin systems, equipment platforms and various structural reinforcement works.











