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High Quality Hot Rolled JIS G3101 SS400 U Channel Bar
Product Detail
| Standard | JIS, GB, ASTM,EN |
| Material grade | Q195-Q420 Series, SS400-SS540 Series, S235JR-S355JR Series, ST Series, A36-A992 Series, Gr50 Series |
| Surface | Mild steel plain finish, hot dip galvanized, etc |
| Certificate | SGS, BV, etc |
| Capacity | 5000ton/month, for non-standard customized products please discuss with us. |
| Place of Origin | Tianjin, China |
| Sample of Galvanized channel iron bar | Available |
| Delivery term | FOB, CFR, CIF, DAP or discuss with us for other terms |
| Delivery time | 15-30 days after deposit received |
U Channel Chemical Composition
| Material | C (Carbon) | Si (Silicon) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) |
| JIS G3101 SS400 | ≤0.25% | — | — | ≤0.050% | ≤0.050% |
Note:
JIS G3101 SS400 U Channel is a general structural carbon steel grade. Unlike some alloy structural steels, SS400 does not specify strict limits for carbon, silicon, and manganese content, while phosphorus and sulfur are controlled to ensure good weldability and fabrication performance.
U Channel Mechanical Properties
| Material | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness |
| JIS G3101 SS400 | ≥245 MPa (t≤16mm) | 400–510 MPa | ≥17% | Approx. 120–180 HB |
Note:
The mechanical properties of JIS G3101 SS400 U Channel Bar may vary slightly depending on product thickness and manufacturing process. SS400 provides excellent weldability, machinability, and sufficient strength, making it widely used in steel structures, bridges, industrial buildings, machinery frames, and general construction projects.
U Channel Size
| Channel steel model | Size | Cross-Sectional Area | Weight | ||
| Height (H) | Leg Length (B) | Web Thickness (t) | （cm2） | （kg/m） | |
| 5 | 50 | 37 | 4.5 | 6.93 | 5.44 |
| 6.5 | 65 | 40 | 4.8 | 8.54 | 6.7 |
| 8 | 80 | 43 | 5 | 10.24 | 8.04 |
| 10 | 100 | 48 | 5.3 | 12.74 | 10 |
| 12 | 120 | 53 | 5.5 | 15.36 | 12.06 |
| 14A | 140 | 58 | 6 | 18.51 | 14.53 |
| 14B | 140 | 60 | 8 | 21.31 | 16.73 |
| 16A | 160 | 63 | 6.5 | 21.95 | 17.23 |
| 16B | 160 | 65 | 8.5 | 25.15 | 19.74 |
| 20A | 200 | 73 | 7 | 28.83 | 22.63 |
| 20B | 200 | 75 | 9 | 32.83 | 25.77 |
| 30A | 300 | 85 | 7.5 | 43.89 | 34.45 |
| 30B | 300 | 87 | 9.5 | 49.59 | 36.16 |
| 30C | 300 | 89 | 11.5 | 55.89 | 43.81 |
UPN/UPE Steel Size
U Channel Customized Content
| Customization & Processing Item | Service Details | Customization & Support Item | Service Details |
| Size Range | Full range of U Channel / C Channel sizes available from light-duty to heavy-duty sections | Cutting Service | Precision cutting to custom lengths and project specifications |
| Length Options | Standard lengths up to 12m or customized fixed lengths | Bending & Forming | Custom bending and forming based on engineering drawings |
| Thickness Options | Customized thickness according to structural and load requirements | Welding & Fabrication | Pre-fabricated welded assemblies and structural components available |
| Steel Grades | ASTM A36, ASTM A572, ASTM A992, Q235B, Q355B, SS400, S235JR, S275JR, S355JR, ST37-2, ST52 and more | OEM & ODM Service | Custom branding, labeling, packaging, and design solutions |
| Surface Treatment | Black steel, hot-dip galvanized, primer painted, or customized coatings | Hole Punching | Customized hole diameter, spacing, and positioning available |
| Processing Capability | Cutting, punching, drilling, welding, and fabrication services | Quality Inspection | Third-party inspection support including SGS, BV, TUV, and others |
| Packaging Options | Standard seaworthy export packaging or customized packaging solutions | Technical Support | Material selection, drawing review, and project consultation |
| Project Applications | Steel structures, warehouses, workshops, machinery, infrastructure, and industrial projects | Export Support | Complete export documentation, MTC, CO, and logistics coordination |
Surface Finish
Application
Structural Steel Frame: Used in industrial and commercial buildings, providing strong load-bearing support and stable structural performance for steel construction projects.
Machinery & Equipment Frames: Ideal for manufacturing equipment bases and heavy machinery frames, ensuring durability, vibration resistance, and long service life.
Bridges & Infrastructure: Widely applied in bridge construction and public infrastructure projects, offering high strength, stability, and excellent load distribution performance.
Solar & Light Steel Systems: Widely used in photovoltaic mounting structures and light steel construction systems, providing high strength, corrosion resistance, and easy installation for solar energy projects, residential buildings, and modular steel structures.
Why Choose Our UPN Channel?
Multi Standard Production Available: We are able to tailor make and produce structural steel profiles meet ASTM (American Standard), EN (European Standard), AS/NZS (Australian Standard) and JIS (Japanese Standard) etc international standards or peaceful customized standards to satisfy the technical requirements of worldwide projects.
High Quality Processing: It guarantees straightness dimension and material grade exactly by advanced production technology.Each Lot has been strictly tested to confirm steadiness of performance and quality reliability.
Third Party Inspection Supported: We allow for internationally recognized inspection services such as BV, SGS and other third party organizations so that we can provide our customers with the assurance of quality that is transparent and reliable.
Stable Supply & Prompt Delivery: Powerful manufacturing capacity and supply chain management ensure the short lead time and the stable supply for the large engineering projects.
Global Project Support: Our experienced team offers overseas on-site communication service, technical solution, and after sales service, enable contractors and fabricators to quickly resolve procurement issues.
Precision Match for High-End Buyers: Whether you need custom specifications or want to place large-volume orders, we’re here to deliver precise steel solutions that meet the requirements of global engineering contractors, steel fabricators, distributors, and industrial manufacturers.
Packaging & Shipping
Royal Steel Group provides professional packaging and shipping solutions to ensure that structural steel products arrive at the destination safely, efficiently, and without damage during international transportation.
Professional Packaging: Steel profiles such as angle bars, channel steel, H beams, and I beams are bundled with high-strength steel straps. Protective measures are applied to prevent surface damage, deformation, and friction during handling and loading.
Standard Export Packing: Products are packed according to international export standards, with clear labeling of size, grade, quantity, and batch information for easy identification and inspection.
Safe Container Loading: We optimize loading methods based on product dimensions and weight, maximizing container utilization while ensuring stability during sea transportation.
Flexible Shipping Solutions: We support multiple transportation methods including container shipping, bulk vessel transportation, and customized logistics solutions based on project requirements.
Complete Export Documentation: We provide full shipping documents including Commercial Invoice, Packing List, Mill Test Certificate (MTC), Certificate of Origin, and third-party inspection reports (BV/SGS if required).Global Delivery Support: With extensive export experience to Southeast Asia, the Middle East, Africa, Central America, South America, and other regions, Royal Steel Group ensures reliable delivery schedules and professional logistics coordination for international customers.
FAQ
Q1: What is JIS G3101 SS400 U Channel Bar?
A: JIS G3101 SS400 U Channel Bar is a Japanese standard structural steel channel made from SS400 carbon steel. It offers good weldability, machinability, and reliable strength, making it widely used in construction, infrastructure, and industrial applications.
Q2: What sizes of SS400 U Channel Bar does Royal Steel Group supply?
A: Royal Steel Group supplies common export sizes including 50×37mm, 65×40mm, 80×43mm, 100×48mm, 120×53mm, 140×58mm, 160×63mm, 200×73mm, and 300×85mm, with customized sizes available according to project requirements.
Q3: What are the main applications of JIS SS400 Channel Steel?
A: SS400 U Channel Steel is widely used for steel structure buildings, warehouses, bridges, industrial equipment frames, machinery supports, transmission towers, shipbuilding, and general fabrication projects.
Q4: What standards can Royal Steel Group provide for channel steel?
A: We can supply channel steel according to multiple international standards, including JIS, ASTM, EN, and AS/NZS standards, depending on customer requirements.
Q5: Can Royal Steel Group customize SS400 U Channel Bar?
A: Yes. We support customized production according to drawings and specifications, including customized sizes, lengths, steel grades, and surface treatments.
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