What Is HEB 120×120×6.5×11 S355J0 Wide Flange H Beam?
HEB 120×120×6.5×11 S355J0 wide flange H beam is a European standard hot-rolled structural steel section. It has a nominal height of 120 mm, flange width of 120 mm, web thickness of 6.5 mm and flange thickness of 11 mm.
Compared with HEA sections of a similar height, the HEB 120 S355J0 H beam has a thicker web and flanges, providing greater resistance to bending, compression and shear. It is commonly used for building columns, load-bearing frames, equipment supports, platforms and industrial steel structures.
HEB 120×120×6.5×11 S355J0 H Beam Specifications
The dimensions of HEB sections are generally defined according to EN 10365, while S355J0 material requirements are specified under EN 10025-2.
| Item | HEB 120 S355J0 Specification |
|---|---|
| Product | Wide flange H beam |
| Section | HEB 120 |
| Steel grade | S355J0 / 1.0553 |
| Standard | EN 10365 / EN 10025-2 |
| Height | 120 mm |
| Flange width | 120 mm |
| Web thickness | 6.5 mm |
| Flange thickness | 11 mm |
| Root radius | Approximately 12 mm |
| Sectional area | Approximately 34 cm² |
| Theoretical weight | Approximately 26.7 kg/m |
| Common length | 6 m, 9 m, 12 m or customized |
| Delivery condition | As rolled, +AR or as agreed |
| Surface | Black, shot-blasted, painted or galvanized |
| Inspection document | EN 10204 3.1 available |
The theoretical weight of a HEB 120 wide flange H beam is approximately 26.7 kg/m. Therefore, one 12-meter beam weighs about 320.4 kg before allowing for permitted dimensional and weight tolerances.
Mechanical Properties of S355J0 HEB 120 Beam
S355J0 is a weldable structural steel grade with a minimum yield strength of 355 MPa for thicknesses up to 16 mm. It also requires an impact energy of at least 27 J at 0°C.
| Mechanical property | S355J0 requirement |
|---|---|
| Minimum yield strength | 355 MPa |
| Tensile strength | 470–630 MPa |
| Minimum elongation | 22% |
| Impact energy | Minimum 27 J at 0°C |
These properties give the S355J0 structural H beam a suitable combination of strength, toughness and weldability for load-bearing steelwork. The final values must be confirmed by the applicable EN 10025-2 edition and the mill test certificate.
Chemical Composition of S355J0 Structural H Beam
The following table provides commonly specified maximum values for S355J0 steel:
| Element | Maximum content |
|---|---|
| Carbon, C | 0.23% |
| Silicon, Si | 0.60% |
| Manganese, Mn | 1.70% |
| Phosphorus, P | 0.040% |
| Sulfur, S | 0.040% |
| Nitrogen, N | 0.014% |
| Copper, Cu | 0.60% |
Actual heat analysis should be checked against the EN 10204 3.1 mill test certificate supplied with the HEB 120 S355J0 steel beam.
What Are the Advantages of HEB 120 S355J0 Wide Flange H Beam?
The HEB 120×120×6.5×11 wide flange beam offers several advantages for structural fabrication:
- Wide parallel flanges provide good bending and compression performance.
- The 6.5 mm web helps resist shear forces.
- The 11 mm flanges improve stability under concentrated loads.
- S355J0 provides higher yield strength than common S235 structural steel.
- The symmetrical H-shaped section is suitable for beams and columns.
- Good weldability supports cutting, drilling and welded assembly.
- Standardized dimensions simplify engineering calculations and installation.
Where Is HEB 120×120 S355J0 H Beam Used?
The S355J0 HEB 120 beam is widely used in:
- Industrial building frames
- Steel structure columns
- Roof and floor support systems
- Equipment support frames
- Warehouse and workshop construction
- Platforms and mezzanine structures
- Machinery bases
- Bridge and infrastructure components
- Solar mounting and energy projects
A structural engineer should confirm the required section according to span, load, connection design, buckling resistance and local construction codes.
HEB 120 vs HEA 120 H Beam
HEB 120 and HEA 120 are both European wide flange sections, but they are not interchangeable.
| Item | HEB 120 | HEA 120 |
|---|---|---|
| Nominal height | 120 mm | 114 mm |
| Flange width | 120 mm | 120 mm |
| Web thickness | 6.5 mm | 5 mm |
| Flange thickness | 11 mm | 8 mm |
| Theoretical weight | 26.7 kg/m | Approximately 19.9 kg/m |
| Typical selection | Higher loads and columns | Lighter structural framing |
The HEB 120 H beam uses more steel per meter and generally provides greater load-bearing performance. However, the final selection must be based on structural calculations rather than weight alone.
HEB 120 S355J0 H Beam Processing Services
We can supply HEB 120 S355J0 wide flange H beams as full-length sections or processed components according to project drawings.
Available processing includes:
- Fixed-length cutting
- Saw cutting and flame cutting
- CNC hole drilling
- End-plate welding
- Bevel preparation
- Shot blasting
- Primer painting
- Hot-dip galvanizing
- Marking, bundling and export packing
For fabricated H-beam components, customers can send drawings in PDF, CAD or STEP format for processing evaluation.
HEB 120 Wide Flange Beam Quality Inspection
Before shipment, the S355J0 H beam can be inspected for:
- Section height and flange width
- Web and flange thickness
- Length and straightness
- Surface condition
- Chemical composition
- Tensile and yield strength
- Impact toughness at 0°C
- Weight and quantity
- Weld quality for fabricated components
EN 10204 3.1 mill certificates, dimensional inspection reports and third-party inspection by SGS, BV or other nominated agencies can be provided when required.
How to Order HEB 120×120×6.5×11 S355J0 H Beam
To receive an accurate quotation, please provide:
| Required information | Example |
|---|---|
| Section | HEB 120 |
| Grade | S355J0 |
| Dimensions | 120×120×6.5×11 mm |
| Length | 6 m or 12 m |
| Quantity | Pieces, meters or metric tons |
| Processing | Cutting, drilling or welding |
| Surface treatment | Black, painted or galvanized |
| Certificate | EN 10204 3.1 |
| Delivery term | EXW, FOB, CFR, CIF or DDP |
| Destination | Port, city and country |
We supply HEB 120×120×6.5×11 S355J0 wide flange H beams for construction, industrial frames and equipment-support projects. Standard lengths, cut-to-size sections, drilling, welding, surface treatment and export packing are available.
Get a Quote for HEB 120 S355J0 H Beam
Send us your required length, quantity, processing drawing and destination. Our team can calculate the theoretical weight, recommend a supply plan and prepare an EXW, FOB, CIF or DDP quotation.
