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JIS G3101 SS400 Channel Steel U/C Channel 8# 10# 12# 14# 16#
JIS G3101 SS400 channel steel is a hot‑rolled structural section featuring a classic U‑shaped profile. This versatile product sees heavy‑duty use across industrial building projects, general steel fabrication, equipment support frames and various lightweight structural builds.
Made from SS400 grade structural steel, our channel balances solid mechanical strength with good weldability and easy‑to‑machine properties, delivering great flexibility for on‑site fabrication work. Royal Steel Group keeps the most‑requested metric channel sizes in stock, covering 8#, 10#, 12#, 14# and 16#. We also accommodate orders with custom cut‑to‑length sizes, surface finishing options and extra processing services.
Our JIS‑compliant SS400 channel steel fits perfectly for workshop purlins, equipment mounting brackets, light‑duty steel frameworks, machinery base frames and custom‑welded structural parts.
| Item | Specification |
| Product Name | JIS G3101 SS400 Channel Steel |
| Standard | JIS G3101 |
| Steel Grade | SS400 |
| Section Type | U Channel / Structural Channel |
| Profile System | Metric |
| Popular Sizes | 8#, 10#, 12#, 14#, 16# |
| Manufacturing | Hot Rolled |
| Standard Length | 6 m / 12 m |
| Customized Length | Available |
| Surface | Black / Mill Finish / Galvanized / Coated |
| Processing | Cutting, Drilling, Punching, Welding |
| Inspection | Chemical, Mechanical, Dimensional & Visual Inspection |
| Third-Party Inspection | BV / SGS Available |
Royal Steel Group regularly supplies the following metric JIS SS400 channel steel sizes for international construction and fabrication projects:
| Channel Size | Typical Application |
| 8# | Light supports, brackets, small frames |
| 10# | Purlins, equipment supports, structural frames |
| 12# | Equipment bases, support structures, fabrication |
| 14# | Industrial frames, purlins, equipment supports |
| 16# | Heavy-duty support frames and machinery bases |
The exact section dimensions, web thickness, flange dimensions, unit weight, and tolerances can be confirmed according to the required JIS profile and project specifications.
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SS400 is a commonly used structural steel grade specified under JIS G3101. It is widely selected for general structural and fabrication applications because of its balanced mechanical performance and good weldability.
SS400 channel steel is suitable for applications where reliable structural support, convenient fabrication, and cost-effective material performance are required.
Suitable for general indoor applications, fabrication, and projects where additional corrosion protection is not required.
Suitable for outdoor structures, humid environments, agricultural facilities, and applications requiring enhanced corrosion resistance.
Primer, epoxy, or other customized coating systems can be provided according to project requirements.
For outdoor and corrosive environments, the appropriate protection system should be selected based on the actual service conditions.
Specifications: Includes a range of heights, flange widths, and thicknesses suitable for light, medium, and heavy-load structures.
Standard Steel Grades: Custom production available for profiles meeting US, European, Australian, and Japanese standards, with steel grades supplied according to customer requirements.
Length and Cutting: Standard lengths of 6 meters or 12 meters; custom cutting to specific lengths is available to minimize on-site welding.
Surface Treatment: Hot-rolled, galvanized, or anti-rust painted finishes.
Processing Services: Cutting, drilling, welding, and pre-fabrication services offered to precisely meet the high-end procurement needs of global contractors and fabricators.
Quality Assurance: Comprehensive inspection of dimensions and materials; third-party inspections (BV/SGS) supported.
Applications: Suitable for various structural applications meeting global standards, including industrial buildings, machinery supports, pavilions, and hydraulic engineering projects.
Royal Steel Group provides customized processing services based on customer drawings and project requirements.
Available services include:
Cut-to-length
Drilling
Punching
Slotting
Welding
Assembly
Customized fabrication
Surface treatment
Customers can provide CAD drawings, BOMs, section dimensions, or project specifications for production evaluation.
We maintain strict quality control throughout production and export preparation.
Inspection can cover:
Chemical composition
Yield strength
Tensile strength
Elongation
Section dimensions
Web and flange dimensions
Thickness
Length tolerance
Straightness
Surface quality
Weight verification
Marking and packaging
BV, SGS, and other third-party inspections can be arranged according to customer or project requirements.
JIS G3101 SS400 Supply
We supply channel steel according to JIS G3101 SS400 requirements with relevant quality documentation.
Popular Export Sizes
Regularly requested metric sizes from 8# to 16# are available for international procurement.
Customized Production
We support customized length, processing, surface treatment, packaging, and fabrication according to customer requirements.
Strict Quality Inspection
Dimensional, mechanical, chemical, surface, and visual inspections help ensure consistent product quality.
Third-Party Inspection
SGS, BV, and other independent inspection services can be arranged before shipment.
Global Export Support
Our team supports international documentation, logistics coordination, technical communication, and project-based procurement.
1. Steel Workshop Purlins
SS400 channel steel is commonly adopted for purlins and secondary structural parts in steel workshops, warehouses, industrial premises and light steel buildings. When deployed in line with structural design standards, it serves as a reliable and cost-effective support for roof and wall enclosure systems.
2. Industrial Equipment Supports
Channel steel is a versatile option for industrial equipment support structures, covering equipment support frames, machine working platforms, pipe hangers, industrial mounting brackets, maintenance platforms and equipment fixing structures. Its open-section design enables easy welding, bolting and on-site component assembly, greatly simplifying construction operations.
3. Light Steel Construction Works
Complying with JIS SS400 standard, this channel steel is well suited for lightweight structural frames, building auxiliary structures, warehouse storage frameworks, agricultural buildings and various general construction support works.
4. Machinery & Equipment Bases
Fabrication factories widely use SS400 channel steel to manufacture machine bases, equipment foundations, integral fabricated frames, support brackets and custom structural assemblies. Custom processing based on clients’ design drawings is available, which effectively reduces the difficulty of subsequent on-site fabrication and processing.
JIS SS400 channel steel is normally supplied in securely strapped bundles suitable for export transportation.
Packaging options include:
Steel-strapped bundles
Waterproof protection
Customized export packaging
Container shipment
Bulk vessel shipment
Export documentation can include:
Mill Test Certificate (MTC)
Commercial Invoice
Packing List
Certificate of Origin
SGS/BV Inspection Report
Shipping Documents
Q1：What are the most popular JIS G3101 SS400 channel sizes?
A: In actual market demand, the most commonly used and in-demand JIS G3101 SS400 channel steel specifications are 8#, 10#, 12#, 14# and 16# metric sizes.
Q2：Is SS400 channel steel suitable for welding?
A: Absolutely. SS400 is a mainstream structural steel material for engineering fabrication. It boasts excellent welding performance, and stable and reliable welding results can be achieved as long as standard welding processes are adopted during construction.
Q3：Can you supply customized channel lengths?
A: Yes, we provide professional anti-corrosion treatment services. Hot-dip galvanizing is available as a standard treatment, and we can also customize other protective coatings to adapt to outdoor use and harsh corrosive working environments.
Q4：Can you provide SGS or BV inspection?
A: We support full third-party quality inspection. Authoritative inspections such as SGS and BV can be arranged for all products before delivery to ensure product quality meets customer standards.
Q5：What are the main applications?
A: This type of channel steel has a wide range of application scenarios, mainly used for steel factory roof purlins, equipment supporting frames, light steel building structures, mechanical equipment bases, various fixing brackets, structural frames and other custom fabricated steel parts.
ROYAL GROUP
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
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