Specification of HEB 300×300×11×19 H Beam
HEB 300×300×11×19 H beam is a European standard hot-rolled wide flange structural section. It has a nominal section height of 300 mm, flange width of 300 mm, web thickness of 11 mm and flange thickness of 19 mm. Its standard theoretical weight is approximately 117 kg/m.
The wide, parallel flanges and relatively thick web give the HEB 300 structural H beam high bending stiffness, compression resistance and connection stability. It is commonly specified for structural columns, main frames, equipment supports and other medium-to-heavy load-bearing structures.
HEB 300 Wide Flange H Beam Standards
The nominal dimensions, sectional area and theoretical mass of HEB profiles are defined by EN 10365. Dimensional and shape tolerances are normally controlled according to EN 10034, while surface quality can be specified under EN 10163-3.
The material standard depends on the selected steel grade. Common non-alloy structural grades such as S235JR, S275JR, S355JR and S355J0 are generally supplied according to EN 10025-2. The required grade and delivery condition should be clearly stated in the purchase order.
| Requirement | Reference standard |
|---|---|
| Section dimensions and mass | EN 10365 |
| Structural steel grade | EN 10025-2 |
| Dimensional tolerances | EN 10034 |
| Surface condition | EN 10163-3 |
| Inspection certificate | EN 10204 |
| Structural design | EN 1993 / Eurocode 3 |
HEB 300 H Beam Dimensions and Weight
| Specification | Symbol | Nominal value |
|---|---|---|
| Section designation | - | HEB 300 / HE 300 B |
| Section height | h | 300 mm |
| Flange width | b | 300 mm |
| Web thickness | tw | 11 mm |
| Flange thickness | tf | 19 mm |
| Root radius | r | 27 mm |
| Cross-sectional area | A | Approximately 149.1 cm² |
| Theoretical weight | G | Approximately 117 kg/m |
| Common supply length | L | 6 m, 9 m or 12 m |
| Customized length | L | Available on request |
The values in this table are nominal. Actual delivered dimensions and weight may vary within the permitted manufacturing tolerances.
Section Properties of HEB 300 Structural H Beam
The geometric properties of an HEB 300 wide flange beam are important for evaluating bending resistance, deflection and column stability.
| Section property | Strong axis | Weak axis |
|---|---|---|
| Second moment of area | 25,170 cm⁴ | 8,563 cm⁴ |
| Elastic section modulus | 1,678 cm³ | 570.9 cm³ |
| Plastic section modulus | 1,869 cm³ | 870.1 cm³ |
| Radius of gyration | 12.99 cm | 7.58 cm |
The strong-axis moment of inertia is commonly used when checking beam stiffness and deflection. The weak-axis properties are especially important when the HEB 300 is used as a column.
These values describe the section geometry but do not represent the final allowable load. Complete structural calculations must also consider span, support conditions, buckling length, lateral restraint and connection design.
Available Steel Grades for HEB 300 H Beam
The HEB 300×300×11×19 H beam can be supplied in different structural steel grades. The final material should be selected according to the required strength, impact temperature, welding conditions and project standard.
| Steel grade | Typical selection requirement |
|---|---|
| S235JR | General structural work with moderate strength requirements |
| S275JR | Structural projects requiring higher strength than S235 |
| S355JR | Higher-strength structures with impact testing at +20°C |
| S355J0 | Higher-strength structures with impact testing at 0°C |
| S355J2 | Projects requiring impact testing at −20°C |
For an HEB 300 made from S355 steel, the 19 mm flange falls within the thickness range above 16 mm and up to 40 mm. Under EN 10025-2, the specified minimum yield strength for this thickness range is normally 345 MPa rather than 355 MPa. The exact chemical composition and mechanical properties must be confirmed on the EN 10204 3.1 mill test certificate.
HEB 300 H Beam Weight Calculation
The standard theoretical weight of an HEB 300 steel beam is approximately 117 kg/m. Buyers can estimate the order weight using the following formula:
Total weight = 117 kg/m × beam length × quantity
| Length | Theoretical weight per piece |
|---|---|
| 6 m | Approximately 702 kg |
| 9 m | Approximately 1,053 kg |
| 12 m | Approximately 1,404 kg |
For example, 20 pieces of 12-meter HEB 300 beams have a theoretical total weight of approximately 28.08 metric tons. This calculation helps estimate material cost, lifting requirements and shipping arrangements. The final invoicing method should specify whether settlement is based on theoretical or actual weight.
Applications of HEB 300×300 Wide Flange Beam
The HEB 300×300 wide flange beam is commonly used as a primary column or supporting beam in industrial plants, warehouses, power facilities and multi-storey steel buildings. Its 300 mm wide flanges provide a large contact area for base plates, end plates and bolted joints, while the 11 mm web transfers shear forces between the flanges.
In equipment-supporting structures and pipe racks, HEB 300 can carry combined axial, bending and shear loads. It can also be fabricated into platform columns, transfer beams, machinery supports and prefabricated frame components. The symmetrical section makes it convenient for welded and bolted connections, although stiffeners may be required around heavily loaded joints.
Selection of an HEB 300 must be based on engineering calculations. The section designation and theoretical weight alone cannot determine whether it is suitable for a particular load or span. Designers should verify strength, deflection, local stability, column buckling, lateral-torsional buckling and connection capacity according to the applicable structural code.
Processing of HEB 300 Structural Steel Beam
We can supply HEB 300 structural steel beams as standard mill-length sections or fabricated components. Available processing includes fixed-length cutting, CNC drilling, slotting, beveling, end-plate welding and stiffener installation. Shot blasting, primer painting and hot-dip galvanizing can also be provided according to the required service environment.
Customers can submit PDF, DWG or DXF drawings for processing evaluation. Fabricated components can be marked according to the installation sequence and packed for international transportation.
Quality Inspection of HEB 300 H Beam
Inspection of the HEB 300 H beam normally covers material traceability, section dimensions, straightness, surface condition and certificate verification. The height, flange width, web thickness, flange thickness and ordered length should remain within the agreed tolerances. The surface should not contain cracks or serious defects that could affect welding or structural use.
The EN 10204 3.1 certificate should identify the steel grade, heat number, chemical composition and mechanical test results. Where an impact-tested grade such as S355J0 or S355J2 is ordered, the certificate should also show the specified impact energy and test temperature.
For processed beams, cutting length, hole position and welding quality should be checked against the approved drawings. SGS, BV or another nominated third-party inspection agency can be arranged when required before production.
For an accurate quotation, buyers should provide the selected steel grade, required length, quantity, delivery condition, processing drawing, surface treatment, certificate requirement and destination. It is also important to confirm whether the quotation should be based on EXW, FOB, CFR, CIF or DDP terms.
Contact now to get HEB 300 Delivered Cost
A complete inquiry allows the supplier to confirm material availability, calculate the order tonnage and recommend an appropriate packing and transportation plan.
We supply HEB 300×300×11×19 wide flange H beams in multiple structural steel grades. Standard lengths, customized processing, surface treatment, mill certificates and export packing are available.
Send us the required grade, length, quantity and destination to receive a theoretical weight calculation and an EXW, FOB, CFR, CIF or DDP quotation.
