ASTM A36 C Channel Steel - Mill Direct Structural Supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of ASTM A36 C Channel Steel
| Property | Parameter | Description |
|---|---|---|
| Product Name | ASTM A36 C Channel Steel | Hot-rolled structural C channel (American standard channel) |
| Material Grade | A36 | Equivalent to EN S275JR, JIS SS400, GB Q235B |
| Standard Compliance | ASTM A36 / A36M | Standard specification for carbon structural steel |
| Carbon (C) | ≤ 0.26% | Maximum carbon content per ASTM A36 |
| Manganese (Mn) | 0.60 – 0.90% | Enhances strength and hardenability |
| Phosphorus (P) | ≤ 0.04% | Controlled to ensure weldability |
| Sulfur (S) | ≤ 0.05% | Controlled to prevent hot shortness |
| Silicon (Si) | 0.15 – 0.40% | Deoxidizer, improves strength |
| Tensile Strength | 400 – 550 MPa (58 – 80 ksi) | Per ASTM A36 Section 6 |
| Yield Strength | ≥ 250 MPa (36 ksi) | Minimum yield point per ASTM A36 |
| Elongation | ≥ 20% (200 mm gauge) | Indicates excellent ductility and formability |
| Size Range | C3×4.1 – C15×50 | Web height 76 – 381 mm; flange width 35 – 94 mm; length 6 m / 12 m or custom |
| Surface Finish | Black / Hot-dip Galvanized / Painted | Optional anti-corrosion treatment available |
| Application | Building frames, bridges, machinery supports, purlins | Widely used in structural and general engineering construction |
| Certification | Mill Test Certificate EN 10204 3.1 | ISO 9001, SGS, BV third-party inspection available |
| Packaging | Bundled with steel strips, waterproof paper wrapped | Seaworthy packaging for export; tag marked per bundle |
| MOQ | 5 Metric Tons | Smaller quantities negotiable for trial orders |
ASTM A36 C Channel Steel - Mill Direct Structural Supplier
ASTM A36 C channel steel remains one of the most versatile and widely specified structural profiles in the construction and fabrication industries. As a mill-direct supplier, we deliver premium grade A36 C channels with full material traceability, competitive mill-direct rates, and reliable lead times for projects of every scale. Whether you are engineering building frameworks, constructing equipment supports, or fabricating industrial platforms, ASTM A36 C channel steel provides the ideal combination of strength, weldability, and cost efficiency. Our inventory covers a comprehensive range of standard sizes from C3×4.1 through C15×50, all manufactured in strict compliance with ASTM A36/A36M specifications. With decades of experience serving structural steel markets worldwide, we understand the critical importance of dimensional accuracy, consistent mechanical properties, and on-time delivery to keep your projects on schedule and within budget.
What Is ASTM A36 C Channel Steel?
ASTM A36 C channel steel is a hot-rolled structural carbon steel profile featuring a C-shaped cross-section with a web and two flanges that taper slightly inward. Designated under ASTM A36/A36M — the most commonly referenced standard for structural carbon steel — this channel profile offers a minimum yield strength of 250 MPa (36 ksi) and a tensile strength range of 400–550 MPa (58–80 ksi). The C channel geometry provides excellent load-bearing capacity along its web axis while remaining lightweight compared to wide-flange beams, making it an economical choice for bracing, framing, purlins, and support structures. A36 grade steel contains a maximum carbon content of 0.26% and a manganese content of 0.60%–0.90%, ensuring superior weldability and machinability without the need for preheating in most applications.

ASTM A36 C Channel Steel Technical Specifications
Our A36 C channel steel is produced in full compliance with ASTM A36/A36M and dimensional tolerances per ASTM A6/A6M. Below are the key mechanical and chemical properties along with standard available sizes:
| Property | Value |
|---|---|
| Standard | ASTM A36/A36M |
| Yield Strength (min.) | 250 MPa (36 ksi) |
| Tensile Strength | 400–550 MPa (58–80 ksi) |
| Elongation (200 mm gauge, min.) | 20% |
| Density | 7.85 g/cm³ at 20°C |
| Carbon Content (max.) | 0.26% |
| Manganese Content | 0.60%–0.90% |
| Available Sizes | C3×4.1 to C15×50 |
| Standard Lengths | 6 m, 9 m, 12 m (custom lengths available) |
| Surface Finish | Hot-rolled black, galvanized, or painted per request |
All material ships with mill test certificates (MTC) per EN 10204 3.1, verifying chemical composition and mechanical properties for full project compliance and traceability.
Key Applications of A36 C Channel Structural Steel
ASTM A36 C channels serve critical roles across diverse industries due to their reliable performance and adaptability. Common applications include structural building frames, mezzanine supports, stair stringers, trailer and truck bed framing, conveyor system supports, solar panel mounting structures, and general fabrication brackets. The profile's tapered flanges allow for efficient bolted and welded connections, while the A36 grade's excellent ductility — with a minimum elongation of 20% — ensures dependable performance under both static and dynamic loading conditions.
Get a Competitive Quote for ASTM A36 C Channel Steel
Partner with a trusted mill-direct supplier for your structural steel needs. We offer cost-effective pricing, fast turnaround, and expert guidance to help you select the right C channel sizes and quantities for your project requirements.

- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!

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Product Introduction
Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.
Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.
Guided by a customer-first philosophy, we have built a comprehensive sales and after-sales network. Our products are exported to Europe, North America, Southeast Asia and Africa, with long-term cooperation with well-known enterprises. Our team provides one-stop services, and we ensure prompt delivery through sufficient inventory and optimized logistics.
Upholding “Quality First, Integrity-based, Innovation-driven, Win-Win Cooperation”, Hongji is committed to becoming a global leader in the steel profile industry, continuously improving quality and service to create a better future with global customers.
FAQ
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request