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Help CenterSteel Channel & Channel Steel，ASTM A36、ASTM A572 Gr50、JIS G3101 SS400、JIS G3192
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1. Product Overview
Channel Steel, also known as Hot Rolled Channel Steel and U Channel Steel, is a hot-rolled structural section steel with a U-shaped groove cross-section. It is integrally composed of a web and two inclined flanges with scientific force-bearing structure, excellent bending, shear and compression resistance. Manufactured by high-temperature hot rolling, Hot Rolled Channel Steel features uniform metallographic structure, stable mechanical properties, balanced toughness and bearing capacity, and superior secondary processability for welding, cutting, drilling and bolt assembly.
With light self-weight and strong structural rigidity, U Channel Steel is easy to install. It can be used as an independent load-bearing component or combined with I-beams, angle steel and steel plates to build steel structure frames. The product includes national standard hot-rolled ordinary channel steel, light channel steel and non-standard channel steel. Complete specifications and sufficient stock are available, supporting custom cut-to-length, beveling, punching and galvanizing deep processing. Widely used in building steel structures, machinery manufacturing and engineering supporting fields, it is a universal core section steel for domestic and foreign steel structure projects.
2. Product Classification
1. National Standard Hot Rolled Ordinary Channel Steel (Main Stock)
Mainstream market model with thick web, strong bearing capacity and standard dimensions. It features excellent structural stability, suitable for heavy-load scenarios such as factory frames, equipment bases, building load-bearing supports and bridge auxiliary structures, enjoying the largest procurement volume in foreign trade projects.
2. Light Channel Steel
Lighter self-weight with thinner web under the same height, cost-effective with good toughness and deformation resistance. Ideal for light-load structures including factory purlins, storage shelves, interior decoration keels and light equipment supports.
3. Cold Formed Thin-Wall Channel Steel
Cold-formed with precise dimensions and smooth surface, featuring lightweight performance. Widely applied in photovoltaic supports, curtain wall frames, light steel buildings and small hardware structural matching.
4. Galvanized Channel Steel
Hot-dip galvanized on the basis of hot-rolled base material with uniform and adhesive coating, providing excellent rust and corrosion resistance, suitable for outdoor, humid and open-air working conditions to extend service life effectively.
3. Executive Standards
National Standard: GB/T 707-2017
European Standard: EN 10025, UPN/UPE European Channel System
American Standard: ASTM A36, ASTM A572 Gr50
Japanese Standard: JIS G3101 SS400, JIS G3192
Full factory inspection covers section dimension tolerance, straightness, bending degree, tensile test, impact test, chemical composition analysis and surface inspection. Mill Test Certificate (MTC) is available for each batch ofChannel Steel, Hot Rolled Channel Steel and U Channel Steel, supporting SGS and BV third-party inspection.
4. Materials & Specifications
4.1 Common Grades
Carbon Structural Steel: Q235B, SS400 (Universal grade for conventional structural engineering)
Low Alloy High Strength Steel: Q355B, Q355C, Q355D (High strength, low temperature resistance for heavy-duty and large outdoor steel structures)
4.2 Conventional Sizes
Full National Standard Series: 5#, 6.3#, 8#, 10#, 12#, 12.6#, 14#a/b, 16#a/b, 18#a/b, 20#a/b, 22#a/b, 25#a/b/c, 28#a/b/c, 30#a/b/c, 40#a/b/c
Standard Length: 6m, 9m, 12m; custom arbitrary length cutting from 3m to 12m available
4.3 Quality Requirements
Profiles are straight without distortion, bending, cracks, scabs, folding or inclusions. Flange inclination, web verticality and dimensional tolerance strictly comply with national standard Class A precision, with uniform stress and no cracking during bending.
5. Production Technology & Surface Treatment
Channel Steel is produced through integrated hot rolling processes: billet heating, rough rolling, finish rolling, shaping, cooling straightening and fixed-length shearing, ensuring regular forming, standard cross-section and stable mechanical properties. The default surface is hot-rolled black finish. Custom treatments such as pickling rust removal, anti-rust oil coating, sandblasting and hot-dip galvanizing are available to meet sea export anti-corrosion and long-term outdoor service requirements.
One-stop deep processing including fixed-length sawing, punching, beveling, bending, welding and polishing is supported, reducing customers’ secondary processing investment and construction costs.
6. Core Product Advantages
✅ Stable Structure & Strong Bearing Capacity: The U-shaped cross-section ofHot Rolled Channel Steel bears force reasonably with excellent bending and shear resistance, high rigidity and stable deformation resistance, suitable for various load-bearing frames and support structures.
✅ Wide Processing Adaptability: U Channel Steel has uniform material and good toughness, easy for cutting, drilling, welding and bolt fixing, ensuring convenient and efficient assembly and construction.
✅ Complete Specifications & Sufficient Stock: Full national standard models and complete material grades are in stock, responding rapidly to bulk foreign trade orders and urgent engineering orders.
✅ High Cost Performance: Light self-weight and high strength reduce the overall project weight and procurement cost compared with thick steel plates.
✅ Comprehensive Anti-corrosion Solutions: Multiple surface options including black finish and galvanizing adapt to indoor, outdoor, dry and humid working conditions for long service life.
✅ High Export Adaptability: Regular profiles and standard packaging fit container sea freight and China-Europe Railway long-distance transportation without deformation and wear.
7. Application Scope
Channel Steel, Hot Rolled Channel Steel and U Channel Steel are widely used in industrial factory steel structure frames, building load-bearing supports, equipment bases, storage shelves, curtain wall keels, photovoltaic supports, bridge auxiliary components, engineering machinery frames, vehicle chassis structures, container accessories, municipal engineering, steel structure stairs, pipeline supports, light steel buildings and hardware supporting components.
8. Supply & Trade Terms
MOQ: 5 tons for stock goods; small trial orders and scattered specifications are negotiable
Lead Time: 3–7 days for conventional stock delivery; 7–12 days for galvanized and customized deep-processed orders
Packing: Standard foreign trade anti-rust packing with steel strip bundling, rainproof film protection and end protection, suitable for 40HQ container, sea freight and China-Europe Railway transportation
Certification: Complete original mill certificates and mechanical test reports, supporting SGS & BV third-party on-site inspection and physical and chemical testing
Trade Terms: EXW, FOB, CFR, CIF, DAP, adapting to foreign trade export orders in Central Asia, Southeast Asia, Europe and America
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