JIS G3101 SS400 ASTM A36 EN10025 S275JR Custom Cut Steel I Beam
JIS G3101 SS400 ASTM A36 EN10025 S275JR Custom Cut Steel I Beam
１．Product Overview
Steel I beam is widely used in industrial construction, steel structure fabrication, bridge engineering, machinery frames, warehouses, and infrastructure projects. The I-shaped cross-section provides high load-bearing capacity while reducing overall structural weight.
This product is supplied according to JIS G3101 SS400, ASTM A36, EN10025 S275JR, GB700 Q235B, and Q345B standards, supporting international structural engineering requirements.
２．Technical Solution
Hot rolled steel I beams are designed to provide structural stability under bending and compressive loads. The optimized web and flange structure improves load distribution and resistance to deformation.
Different material grades can be selected according to required yield strength, welding performance, corrosion environment, and structural design standards.
SS400 and ASTM A36 are commonly used for general construction structures, while Q345B and S355JR provide higher strength for heavy-duty engineering projects.
３．Specifications
| Parameter | Value |
|---|---|
| Product Type | Steel I Beam / H Beam |
| Standard | AISI / ASTM / BS / DIN / GB / JIS / EN |
| Steel Grade | Q195 / Q215 / Q235 / Q345 / ASTM A36 / ASTM A572 / SS400 / SS490 / S235JR / S355JR |
| Height | 100–900 mm |
| Web Thickness | 4.5–20 mm |
| Flange Width | 75–350 mm |
| Flange Thickness | 7–35 mm |
| Length | 5.8m / 6m / 9m / 11.8m / 12m / Custom |
| Surface Treatment | Black / Galvanized / Painted / Pickled |
| Technique | Hot Rolled / High Frequency Welded |
| Inspection | BV / SGS / MTC / ISO |
Typical EN Standard Models
| Height | Flange Width | Web Thickness | Flange Thickness | Weight |
|---|---|---|---|---|
| 80 mm | 50 mm | 4.5 mm | 5.5 mm | 7.52 kg/m |
| 100 mm | 55 mm | 3.8 mm | 5 mm | 6.72 kg/m |
| 140 mm | 73 mm | 4.7 mm | 6.9 mm | 12.9 kg/m |
| 180 mm | 91 mm | 5.3 mm | 8 mm | 18.8 kg/m |
| 240 mm | 120 mm | 6.2 mm | 9.5 mm | 30.7 kg/m |
| 270 mm | 135 mm | 6.6 mm | 10 mm | 36.1 kg/m |
４．Application
Steel I beams are widely used in:
- Industrial steel structures
- Bridge engineering
- Warehouse construction
- Petrochemical facilities
- Power plant structures
- Machinery frame fabrication
- Port conveyor systems
- Vehicle and ship structures
- Underground retaining structures
- Multi-story steel buildings
５．Processing
The product supports customized cutting length, drilling, welding, galvanizing, painting, and fabrication processing according to project requirements.
Surface conditions can be supplied as black finish, galvanized, painted, pickled, or perforated.
６．Advantages
- High structural strength and load-bearing capacity
- Stable dimensional performance for heavy-duty structures
- Wide compatibility with international standards
- Custom length and fabrication support
- Suitable for welding and structural assembly
- Available in multiple grades for different engineering requirements
- Standard export packing for global shipment
７．How to Choose
- Choose ASTM A36 or SS400 for standard structural construction projects.
- Choose Q345B or S355JR when higher yield strength and heavier loading are required.
- Confirm beam height, flange width, and web thickness according to engineering load calculations.
- For outdoor or corrosive environments, galvanized or painted surface treatment is recommended.
８．FAQ
Q1．What standards are available for the steel I beam
The product can be supplied according to ASTM, JIS, EN, GB, DIN, and BS standards.
Q2．Can customized cutting length be provided
Yes. Length can be customized according to project requirements.
Q3．What surface treatments are available
Black finish, galvanized, painted, pickled, and perforated surfaces are available.
Q4．What applications are suitable for steel I beams
They are suitable for industrial buildings, bridges, warehouses, machinery structures, ports, and infrastructure projects.
Q5．What is the minimum order quantity
The MOQ is 50 MT per size.
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