Open Box Beam
Open Box Beam Barrier
Open box beam barrier is a high-strength road safety barrier designed for long-term durability and impact resistance. Constructed from high-quality steel and hot-dip galvanized to 550 g/m2, it is commonly used in highway and bridge applications across EU countries. The section is manufactured to meet design standards and can be customized for specific project requirements. Production has been ongoing since 2007, with approximately 100 containers shipped annually to the EU since 2010.
Why It Is Specified
Key Benefits
- Higher durability and impact resistance compared to standard metal guardrails
- Hot-dip galvanized finish with 550 g/m2 zinc coating for long-term corrosion protection
- Lower maintenance cost over the service life compared to other barrier types
- Structural rigidity supports continuous runs on bridges and high-speed roadways
- Customizable section dimensions and steel grades to match project specifications
- Consistent performance across batches due to steel sourced from Tang Steel
Where It Goes
Application Scenarios
- Highway and expressway installations where long-term durability and low maintenance are required
- Bridge approaches and deck edges needing robust impact protection
- Urban roadways and park access zones where aesthetic and structural performance are both important
- High-traffic corridors with frequent vehicle run-off-road incidents
- Locations where barrier repair must be done without full system replacement
Buyers
Who It Is For
- Highway contractors sourcing barrier by the container for EU road authority projects
- Civil infrastructure importers and distributors stocking box beam barriers for regional resale
- Bridge and overpass construction companies requiring high-strength, low-maintenance barriers
- Road safety product suppliers integrating box beam into multi-component safety systems
- Maintenance departments replacing damaged sections without re-installing entire runs
Procurement Risk
Problems It Solves
- Barrier failure due to premature corrosion in exposed roadside or bridge environments
- Inconsistent impact performance caused by mixed steel grades across a shipment
- High maintenance costs from frequent repairs or replacements of weaker barrier types
- Difficulty in achieving clean splices and alignment when installing non-standard sections
- Lack of structural rigidity in barriers that deform excessively under impact
Detail
Technical Features
- Open box section with 200 x 150 x 149 mm cross-section and 4800 mm length
- 5.00 mm standard wall thickness, with customization available
- Q235B (equivalent to S235JR) or Q345 (S355JR / ASTM A529M 1994) hot rolled steel
- Hot-dip galvanized finish with zinc coating of 550 g/m2 (80 microns)
- Designed for highway and bridge applications with high impact resistance
- Splice compatibility ensured through consistent roll forming and hole punching
Data
Specifications
| Standard Size | 200 x 150 x 149 x 4800 mm |
|---|---|
| Thickness | 5.00 mm or customized |
| Steel Grade | Q235B (equivalent to S235JR) / Q345 (S355JR / ASTM A529M 1994) |
| Surface Treatment | Hot dip galvanized |
| Zinc Coating | 550 g/m2 (80 microns) |
| Application | Highway, Bridge |
TBC The source specification does not state Standard for this product. Confirm with us before you rely on it.
Steel
Materials
- Q235B hot rolled carbon steel, equivalent to S235JR, for standard applications
- Q345 higher strength steel, equivalent to S355JR and ASTM A529M 1994, where higher strength is required
- Steel coil supplied by Tang Steel, ensuring consistent grade and thickness across batches
- Zinc for hot-dip galvanizing applied at 550 g/m2, matching the coating weight specified in EU tender documents
How It Is Made
Manufacturing Process
- Steel coil is received and verified for grade before entering the production line
- Coil is roll formed into the open box beam profile using dedicated forming equipment
- Hole patterns and splice locations are punched to match project or standard specifications
- Sections are hot-dip galvanized in the on-site galvanizing workshop
- Galvanized sections are inspected for coating uniformity and structural integrity
- Sections are bundled and prepared for container shipment
Checks
Quality Control
- Steel grade verified against Tang Steel supply documentation before forming
- Section dimensions checked against the 200 x 150 x 149 mm cross-section and 4800 mm length
- Zinc coating thickness verified at 550 g/m2 using in-house testing methods
- Hole pattern and spacing inspected to ensure compatibility with standard post and splice systems
- Production process covered by ISO9001 quality system and CNAS factory inspection
Certifications
Shandong Hongda Industry Co., Ltd is an ISO9001 certified company and holds a CE certificate, a CNAS factory inspection certificate and a qualification certificate for batch production. The company is a nominated high-tech enterprise of the Shandong Provincial Government and one of the Top 100 demonstration enterprises named by the Jinan Municipal Government.
Made to Your Drawing
Customization Options
- Wall thickness customized from the standard 5.00 mm to meet specific load or design requirements
- Steel grade substituted from Q235B to Q345 when higher strength is specified
- Section length and hole pattern adjusted to match the standard or drawing provided
- Supplied as a complete system with posts, spacers, and terminal ends from the same production batch
Compared With Other Products
| W-beam guardrail | W-beam is lighter and easier to install, but open box beam offers greater rigidity and impact resistance, especially on bridges and high-speed roads |
|---|---|
| Thrie-beam guardrail | Thrie-beam has three corrugations and higher energy absorption, but open box beam provides better structural stability and lower long-term maintenance |
| Concrete barrier | Concrete has longer life and no galvanizing, but open box beam can be repaired section by section and is more suitable for locations with limited space |
| Cable barrier | Cable systems allow greater deflection and are lighter, but open box beam provides immediate containment and is preferred where space is limited or aesthetics matter |
Installation
Use Guide
- Install posts at the spacing and embedment depth specified in the project drawing
- Attach the beam to the post using bolts and spacers, ensuring alignment and secure fit
- Lap splices in the direction of traffic flow to avoid snagging an impacting vehicle
- Fit terminal ends at both ends of each run and at every opening in the barrier line
- Inspect galvanized coating at cut or drilled points and treat any exposed steel before handover
- Replace damaged sections individually rather than re-running the entire barrier system
Product Gallery
Open Box Beam Barrier Questions Buyers Ask
What standard is the open box beam built to?
Box beam is built to the dimensions and hole pattern on your drawing or tender document. Send us the specification for the road authority you are supplying and we will confirm what we can roll.
What steel grade and thickness do you supply?
Standard thickness is 5.00 mm. Steel grades are Q235B (equivalent to S235JR) or Q345 (S355JR / ASTM A529M 1994). Other thicknesses and grades are rolled to customer specification.
How thick is the galvanizing?
Zinc coating is 550 g/m2, which measures approximately 80 microns. Galvanizing is performed in-house, ensuring consistent coating weight and quality.
What are the section dimensions?
The standard section is 200 x 150 x 149 mm in cross-section and 4800 mm long. Dimensions can be adjusted to match your project drawing or standard.
Can you supply posts and terminals with the beam?
Yes. Posts, spacers, terminal ends, bolts, nuts, and caps are produced in-house, so a complete barrier system can be supplied from a single production run.
What is your minimum order and lead time?
Both are confirmed per order based on your quantity and specification. Send your drawing or tender extract to [email protected] for a quotation.
Do you export in full containers?
Yes. Open box beam has been exported in around 100 containers annually to EU countries since 2010, primarily in full container loads.
Need Open Box Beam Barrier to a Specification
Send the drawing or the tender clause and we will confirm the section, grade, thickness and coating weight we can supply.