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ASTM A588 Structural Steel Channel Hot Rolled Corten Weathering Steel C‑Channel
Product Overview
ASTM A588 Channel Steel is a hot rolled, high strength, low alloy structural steel channel made from plate. Corten Steel Channel the strength and tolerance of the c channel with superior resistance to atmospheric rust.
A stable rust patina layer forms in a weathering environment with A588 that corrodes at a slower rate in a moderating atmosphere. So it is suitable for outdoor use such as agriculture building and sport field in A588 C-Channel.
Royal Steel Group Supplies the Best grade ASTM A588 Steel Channels for construction, bridges, industrial plants, Infrastructure and any other work which are exposed to weather, if you are interested in any of our products, please feel free to contact usub customize cutting processing inspection packaging for export are available.
Product Detail
| Item | Details |
| Product | ASTM A588 Structural Steel Channel |
| Type | C-Channel / Structural Channel |
| Material | ASTM A588 Weathering Steel |
| Manufacturing | Hot Rolled |
| Shape | C / Channel Section |
| Surface | Hot Rolled / Weathered / Customized |
| Standard | ASTM A588 |
| Length | 6 m, 9 m, 12 m or Customized |
| Processing | Cutting, Drilling, Welding, Machining |
| Inspection | MTC, Third-Party Inspection Available |
| Application | Construction, Bridges, Infrastructure, Industrial Structures |
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 |
ASTM Channel Specification Table
KEY FEATURES
1.Great Weathering Properties
ASTM A588 forms a protective rust-like patina when exposed to alternating wet and dry atmospheric conditions, providing improved resistance to atmospheric corrosion compared with conventional carbon structural steel.
2.High Structural Strength
The strength, toughness, and durability required for severe structural applications is furnished by the low-alloy nature of the material.
3.Hot-rolled production
Hot rolling enables uniform mechanical characteristics and dimensional form throughout its length, which is why the channel is good for fabrication work and construction.
4.Less Maintenance
In appropriate outdoor applications, the protective patina may eliminate the need for the traditional painting and the surface maintenance.
5.Adaptable Supply
Channels segments that are tailored to the project drawings and the purchasing specifications - including made to measure length, cut, drill and value added processing.
Surface Finish
Conventional Surfaces
Galvanized Surface
Spray Paint Surface
ASTM A588 vs. Conventional Carbon Steel Channel
| Feature | ASTM A588 Channel | Conventional Carbon Steel Channel |
| Corrosion Resistance | High atmospheric weather resistance | Standard |
| Weathering Patina | Yes | No |
| Structural Strength | High | Depends on grade |
| Outdoor Application | Excellent | Requires suitable protection |
| Maintenance | Potentially reduced | Usually requires coating maintenance |
| Manufacturing | Hot Rolled | Hot Rolled |
| Typical Use | Bridges, infrastructure, outdoor structures | General construction |
The actual corrosion resistance depends on the environment. The use of ASTM A588 steel is mainly for atmospheric exposure and it is not considered for use in continuously wet, marine, submerged, or severe corrosive conditions without being protected.
Processing Services
Royal Steel Group provides value-added processing for ASTM A588 structural channels, helping customers receive steel products ready for fabrication and installation.
Available services include:
1.Cutting to specified lengths
2.Drilling and hole-making
3.Welding and fabrication
4.Surface treatment
5.Dimensional inspection
6.Material testing
7.Marking and identification
8.Custom fabrication according to drawings
Quality Control & Inspection
Quality control is carried out throughout the production and delivery process.
Inspection options may include:
1.Chemical composition testing
2.Tensile and yield strength testing
3.Elongation testing
4.Dimensional inspection
5.Surface inspection
6.Heat-number traceability
7.Mill Test Certificate (MTC)
8.Third-party inspection such as SGS when required
Each batch can be supplied with relevant material documentation according to the buyer's requirements.
Application
Bridge Construction: ASTM A588 weathering steel channels are ideal in bridge parts.
Industrial Structures: Ideal for use in factories, workshops, platforms, equipment supports and other industrial steel work.
Infrastructure: Employed in outdoor infrastructure applications where long life and low maintenance are key.
Architectural Structure: The naturally rusted appearance of Corten steel can be used as a beautiful architectural finish for structural and embellished elements.
Our Advantages
1.International Steel Supply - Royal Steel Group provides structural steel products for construction and infrastructure projects in international markets.
2.Multiple Standards - We can supply structural steel according to ASTM, EN, JIS, GB and other applicable standards.
3.Customized Processing - Cutting, drilling, welding, fabrication, and other processing services can be arranged according to customer drawings.
4.Quality Documentation - MTC, inspection reports, packing lists, commercial invoices, certificates of origin, and other export documents can be provided according to project requirements.
5.Export Experience - Our experienced export team supports customers with product selection, technical specifications, packaging, shipping, and documentation from quotation to delivery.
Packaging & Shipping
ASTM A588 steel channels are securely bundled for international transportation to minimize movement and damage during handling and shipping.
Typical export packaging includes:
- Steel strapping
- Protective wrapping where required
- Clearly marked bundles
- Heat number and product identification
- Waterproof protection for sea transportation when required
Shipping options can include container, bulk vessel, and other suitable transportation methods, depending on order quantity, product dimensions, destination, and customer requirements.
FAQ
Q1. What ASTM C Channel steel sizes do you supply?
A: We supply common American Standard C Channel sizes including C3×4.1, C4×5.4, C5×6.7, C6×8.2, and C8×11.5, with customized sizes available according to project requirements.
Q2. What materials are available for C Channel steel?
A: Our C Channels are mainly supplied in ASTM A36 and ASTM A572 Grade 50 carbon steel, offering reliable strength and excellent weldability for structural applications.
Q3. Can you provide customized C Channel production?
A: Yes. We support customized production including special lengths, drilling, cutting, surface treatment, and galvanizing to meet different engineering requirements.
Q4. What quality certificates can you provide?
A: We provide complete quality documents including Mill Test Certificate (MTC), chemical composition reports, mechanical test reports, and third-party inspection reports from SGS/BV when required.
Q5. What is your standard delivery time?
A: Delivery time depends on order quantity and production requirements. Standard orders are usually shipped within 15–30 working days after order confirmation.
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