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Help Center304 Stainless Steel U Channel Bar Lightweight Thin Wall 1.5–3mm for Modular Structure Assembly
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What Is Stainless Steel Channel Bar？
Product Definition：
Stainless steel channel bars are long structural products with a U-shaped (or C-shaped) cross-section, consisting of a vertical web and two horizontal flanges-25. This design provides excellent strength-to-weight ratio and structural rigidity, making channel bars the preferred choice for structural framing, guides, tracks, supports, and reinforcement in construction, industrial, and mechanical applications-.
Specification Notation：
Stainless channel bars are specified by（h）×（b）×（d） in millimeters-3.
Example: 120×53×5 = channel bar with 120mm height, 53mm flange width, and 5mm web thickness
Type designation: 12#Types of Stainless Steel Channel Bar：
| Type | Description | Key Characteristics | Typical Applications |
|---|---|---|---|
| Standard / Ordinary Channel | Hot rolled, standard dimensions | Higher strength, thicker sections | Building structures, vehicle manufacturing, industrial equipment-25 |
| Light Channel | Thinner flanges and web | Better economic efficiency, lighter weight-25 | Lightweight steel structures, architectural frameworks-25 |
Key Characteristics：
| Feature | Description |
|---|---|
| Structural Efficiency | U-shape maximizes load-bearing capacity while minimizing weight |
| Corrosion Resistance | Excellent resistance to atmospheric, chemical, and chloride exposure – grade dependent- |
| Versatility | Available in standard and light channel configurations to suit various design requirements |
| Excellent Weldability | Austenitic grades (304, 316) offer superior weldability for fabrication |
| Multiple Manufacturing Methods | Hot rolled or cold drawn – choose based on tolerance and surface requirements |
| Long Service Life | Low maintenance costs compared to carbon steel in corrosive environments- |
| 100% Recyclable | Environmentally friendly with no loss of properties |
Channel Bar vs Other Structural Sections：
| Feature | Channel Bar | Angle Bar | I-Beam |
|---|---|---|---|
| Cross-section | U-shape | L-shape | I-shape |
| Best For | Guides, tracks, framing, supports | Bracing, brackets, corners | Heavy beams, columns |
| Strength-to-Weight | Good | Good | Excellent |
| Typical Use | Medium structures, guides | Light to medium structures | Heavy structures |
Key Specifications – Stainless Steel Channel Bar
| Parameter | Specification / Range | Remarks |
|---|---|---|
| Standards | ASTM A276, A484, A479, JIS G4303, GB/T 1220, DIN | ASTM A276 covers hot-finished or cold-finished shapes including channels- |
| Austenitic Grades | 201, 202, 301, 304, 304L, 304H, 309S, 310S, 316, 316L, 316Ti, 317L, 321, 347 | Most common for structural use-1 |
| Ferritic Grades | 409, 410, 430, 439, 441 | Cost-effective, magnetic |
| Duplex Grades | 2205 (S31803/S32205), 2507 | High strength, excellent SCC resistance |
| Super Austenitic | 904L, 254SMO | Extreme corrosion resistance |
| Precipitation Hardening | 17-4PH (630) | High strength, heat treatable |
| Height (h) – Standard | 50 mm – 400 mm (5# – 40#)-25 | Custom on request |
| Flange Width (b) | 20 mm – 120 mm | – |
| Web Thickness (d) | 3 mm – 16 mm-1 | – |
| Length | 3 m, 4 m, 6 m, 12 m, or custom | Up to 12m standard; longer on request |
| Surface Finish | Black, pickled, 2B, BA, No.4, HL, sandblasted | See Screen 7 for details |
| Condition | HRAP (Hot Rolled Annealed & Pickled)-9 | – |
| Density | 7.70 – 8.00 g/cm³ | Grade dependent |
| Testing | PMI, tensile, hardness, dimensional inspection | Mill cert EN 10204 3.1 |
| Packaging | Steel strapped bundles, wooden pallet | Seaworthy, ISPM 15 |
Wuxi Yansheng Technology Co., Ltd. – Company Profile
Wuxi Yansheng Technology Co., Ltd. is a comprehensive technology enterprise specializing in high-quality metal raw material supply and precision processing services. Located in Wuxi City, a major steel distribution center in China, the company leverages the mature industrial chain advantages of the Yangtze River Delta region to provide professional material solutions to global customers.
As a technology-driven enterprise, Yansheng Tech maintains strategic cooperation with several well-known steel mills (such as TISCO, Baosteel, JISCO, Dongfang Special Steel, etc.) and is an authorized distributor of these mills. Our main products include stainless steel (304/316/BA/EP pipe), carbon steel, silicon steel, copper, aluminum and other materials in the form of sheets, pipes, coils, as well as custom-processed parts.
Core Business Highlights:
Material Supply: We maintain sufficient stock inventory, offering 304/316 stainless steel sheets, pipes, coils, API 5L casing, electrical steel, and more. We also accept orders for special steel grades and non-standard specifications.
Precision Processing: Equipped with imported mirror polishing machines, water jet cutting machines, high-precision slitting/leveling lines, large CNC milling machines, boring machines, and more. We provide customized services including BA/EP pipe finishing, medium plate polishing, matte finishing, embossing, plasma cutting, etc.
Main Applications: Our products are widely used in industries such as solar energy, pressure vessels, boilers, electric heating equipment, petrochemicals, environmental protection machinery, pharmaceutical and food processing, and new energy vehicles.
Our processing center is located in Xishan District, Wuxi City, covering nearly 10,000 square meters, with an experienced technical and service team. We adhere to the business philosophy of "Technology First, Quality Oriented, Service Supreme" , providing 24/7 warehousing and logistics support as well as comprehensive after-sales service. Yansheng Tech is committed to being your trusted long-term partner.
Frequently Asked Questions (FAQ)
Q1. What products do you mainly supply?
We mainly supply stainless steel (304/316/BA/EP pipes), carbon steel, silicon steel, copper, aluminum, and other materials in sheets, pipes, and coils. Customized processing services are also available.
Q2. Do you have stock available?
Yes, we maintain sufficient stock for most standard specifications. For non-standard sizes, we can accept orders with reasonable lead time.
Q3. Can you provide MTC (Mill Test Certificate)?
Yes, we provide MTC for every shipment. Third-party inspection (SGS, TÜV, BV, etc.) is also available upon request.
Q4. Do you support video inspection before shipment?
Yes, we fully support video inspection. You can also arrange an agent or third party to visit our factory for on-site inspection before shipment.
Q5. What are your main export markets?
We export to Southeast Asia, the Middle East, Europe, Africa, and South America. We have rich experience in international trade and export documentation.
Q6. What payment terms do you accept?
We accept T/T (wire transfer), L/C at sight (irrevocable), and sometimes a combination of T/T deposit + L/C balance. Payment terms are negotiable based on order size and customer history.
Q7. Can you provide samples?
Yes, samples are available for most standard products. For custom sizes, we may need to produce small batch samples. Sample cost and shipping are usually borne by the customer, but can be discussed.
Q8. What is your typical lead time?
For stock items: 7–10 days after order confirmation. For custom production: 20–30 days, depending on the specification and quantity.
Q9. What quality certifications do you have?
We provide MTC with every shipment. Our partner mills are ISO9001 certified. We can also assist with third-party inspections (SGS, TÜV, BV) upon request.
Q10. How can I get a quotation?
Please send us your material grade, specification (size, thickness, length), quantity, and preferred trade term (FOB, CIF, DAP, etc.). We will reply with a detailed quotation within 24 hours.
Send Inquiry to This Supplier
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