Classification: Steel highway guardrail can be divided into corrugated steel guardrail, square tube guardrail and steel wire rope guardrail in China. And people can also see other types of highway guardrail such as concrete guardrail, roller guardrail and some new innovation for highway steel guardrail in some area. In addition, according to surface treatment, it can be divided into galvanized steel guardrails and galvanizing plus plastic spray steel highway guardrail.
According to location, it can be divided into steel roadside guardrails and steel median guardrails. According to anti-collision level, it can be divided into level A and Level S. Level S steel highway guardrail is reinforced barrier, which is suitable for application of dangerous roadside sections, and level A steel highway guardrail is used for special roads.
The common sheet steel beams for highway guardrail can be divided into level B, A, SB, SA and SS according to the anti-collision level. Materials and levels of W steel guardrail vary according to application in different areas and sections. Therefore, material of steel rail guardrail should be determined according to various conditions, and the price of steel beam guardrail is different from that of material.
Structure: Steel highway guardrail is composed of steel beams and posts fixed and clamped between them. Galvanized steel posts are fixed between beam steel guardrail. In the normal operation of motorway, steel highway guardrails can be easily inserted into the pre-set plug-in hole by post, which plays the role of isolation and protection while it corresponds to the rail belt at outside of the road bed, which is neat, uniform and beautiful.
Working Principle: Steel highway guardrail is the main appearance of semi-rigid barrier, which is a continuous structure with thrie or w beam steel guardrail spliced with each other and supported by steel post. It uses the deformation of road base, steel post and thrie or w beam steel guardrail to absorb impact energy, and forces uncontrollable vehicles to change direction and return to the right way and prevent vehicles from smashing out of the road, so as to safeguard vehicles and passengers and minimize the losses caused by accidents.
Standards
Hot dip galvanized steel highway guardrail and post according to industry standard JT/T281-2007 and AASHTO M180. Its metal material adopts carbon structural steel or low alloy steel and cold bended or cold formed, and mechanical properties are not less than the requirement of S235JR or S355JR steel EN10025. The surface of highway steel guardrail is usually hot dip galvanized or plastic coated to prevent rust, people call it hot dip galvanized steel highway guardrail, or zinc steel guardrail, or zinc coated steel guardrail.
Materials
Steel plate for galvanized steel highway guardrail Q235 carbon structural steel is also called A3 plate, which is equal to S235JR of EN10025 while Q345 is also typical material for thrie and w beam steel guardrail which equals to S355JR according to EN10025. Is a common carbon structural steel. It is composed of Q + number + quality level symbol + deoxidation method symbol. Its steel grade is initialed with "Q", which represents the yield point of the steel. The following numbers represent the yield point value, and the unit is MPa. For example, Q235 represents the carbon structural steel with a yield stress of 235 MPa.
Features
Stainless steel road guardrail has characteristics of both flexible and strong ability of absorbing impact energy, good eyesight guidance function, coordination with road alignment, beautiful appearance, and can be used on small radius curves, and the damaged rail parts are easy to be replaced. Steel guardrail systems can be applied on narrow central separation belt, say median rail area. For road section where the vehicle is easy to be rushed out of the roads or bridges and may cause serious injuries or losses, the types of galvanized steel highway guardrail can be strengthened.
Warranty
1 year
Certification
ISO9001
GENERAL INFORMATION
1. DESCRIPTION
Our Highway Guardrail Beam meet AASHTO M180 Class A, Class B, Type I and Type II, and SGS Test Report showing the goods meeting AASHTO M180 (Standard Specification for Corrugated Sheet Steel Beams for Highway Guardrail) for each order is available upon request.
Classification, materials, mechanical properties, coating requirements and ordering information of highway guardrail are accurately described and designated according to AASHTO M180.
2. SPECIFICATIONS
Classification, materials, mechanical properties, coating requirements and ordering information of highway guardrail are accurately described and designated according to AASHTO M180.
2.1 Classification:
| Types: Surface treatment are divided into four types, and type I and type II are hot dip galvanized surface treatment. |
| Type I-Zinc coated, 550 g/m2 (1.80 oz/ft2) minimum single-spot. Type II-Zinc coated, 1100 g/m2 (3.60 oz/ft2) minimum single-spot. Type III-Beams to be painted. Type IV-Beams of corrosion resistant steel. |
| Classes: steel thickness is categorized into two class |
| Class A-Base metal nominal thickness-2.67 mm (0.105 in.) Class B-Base metal nominal thickness-3.43 mm (0.135 in.) |
2.2 Base Metal:
The beam, transition, end, and buffer sections shall consist of sheet made of open hearth, electric furnace or basic oxygen steel and shall meet the mechanical properties specified in Section 8 as below.
| Mechanical properties: The mechanical properties of the base metal shall conform to the following requirements: |
| Beams and transition sections: Yield Point, minimum, 345 MPa (50000 psi); Tensile Strength, minimum 483 MPa (70000 psi); and Elongation, in 50 mm (2 in.), minimum, 12 percent. |
| End and buffer sections: Yield Point, minimum, 227 MPa (33000 psi); and Tensile Strength, minimum 310 MPa (45000 psi). |
2.3 Coating requirements:
Type I and Type II beams:
The beams may be galvanized before or after fabrication.
The mass of coating shall conform to the requirements prescribed in Table 1 for the types
specified. The mass of coating is the total amount of galvanizing on both sides of a sheet or beam,
expressed as grams per square meter (oz/ft2) of sheet.
| Model | Min Check Limit Single-Spot Test | Min Check Limit Triple-Spot Test | ||
| g/m2 | oz/ft2 | g/m2 | oz/ft2 | |
| Type I | 550 | 1.80 | 610 | 2.00 |
| Type II | 1100 | 3.60 | 1220 | 4.00 |
2.4 Ordering information:
Orders for guardrail under this specification shall include the following information, as required, to adequately described material:
- Quantity (linear meter or number of pieces).
- Class of guardrail.
- Types of guardrail.
- Effective length of beam section 3.8 mm or 7.6 mm.
- Shape (W-beam or Thrie-beam).
- Exceptions to this specification or special requirements, if any.
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| We always confirm orders by detailed drawings of highway guardrails, sales agreement, and designated standards and norms, and we always respect the drawings, sales agreement, designated standard. We always use our professional and sincerity to serve our clients, client's satisfaction and friendship is our persuit. |
3. PRODUCTS
Our complete highway guardrail systems including w beam guardrail, Thrie beam guardrail, highway guardrail post, spacer, end terminal, reflector, bolts, etc.
Details and Parts Names
Item | Highway Guardrail Parts Names | Remark |
1 | W Beam | Also Guardrail Beam, Two Wave Corrugated Beam |
2 | Post | |
3 | Spacer | Also Block, Blockout, Blocking Piece |
4 | Bolts, Nuts, Washers | Anti-Theft Bolts, Nuts, Washers available |
5 | Reflector | Also Cat's Eye |
6 | Thrie Beam | Three Wave Guardrail Beam |
7 | W to Thrie Beam Transition | |
8 | End Terminal | Fishtail and Bullnose, End Anchorage, etc. |
9 | Crash Cushions | Also Impact Attenuators |
4. OTHER RELEVANT PRODUCTS
Crash Cushion, Corrugated Steel Pipe Culvert, Highway Noise Barrier, etc.
5. CERTIFICATES
SGS Test Report meeting AASHTO M180, ISO9001, ISO14001, etc.
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| AASHTO Test by SGS for Highway Guardrail Beam and Crash Barrier Post |
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| Our various certificates |
6. COMPANY PROFILE
Suzhou Tongsu Traffic Engineering Co., Ltd. Is a professional manufacturer and exporter of complete system of highway guardrail, crash barrier and road safety products.
Equipped with state-of-the-art fabrication equipment such as W Beam and Thrie Beam Guardrail cold roll forming machine, uncoiling slitting recoiling Line, cold bending machine, punching machine, hot DIP galvanizing plant. Tongsu Traffic can manufacture super quality goods as below:
Highway Guardrail
Crash Barrier
Road Furniture and construction materials
Tongsu Traffic manufacture highway guardrails according to AASHTO M180, JT/T281-2007 and relevant international standards. And we are ISO9001, ISO14001 certified. Our superior quality guardrail products can make our customers always satisfied.
7. CLIENT VISIT AND MEETING
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| We have been exporting to more than thirty countries and we warmly welcome our client's visit! |
8. TRADE SHOW AND EXHIBITION
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| We attend professional road traffic safety shows and exhibition all over the world |
We mainly attend traffic safety shows and exhibition as below:
| Gulf Traffic | Intertraffic Amsterdam | Intertraffic China |
| TranspoQuip in Brazil | Intertraffic Istanbul | Intertraffic Indonesia |
9. FACTORY AND WORKSHOP
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| Our highway guardrail factory can manufacture crash barrier and relevant road safety steel products 50000 metric tons per year, which can meet lead time for most orders from our clients. |
10. PRODUCTION PROCESS
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| 10.1 Fabrication of highway guardrail beam: Steel Coil, Sampling,Tensile Test, Remove Steel Coil Edge,Flatten, Punching, Shearring, Cold Roll Formed with Highway Guardrail Roll Forming Machine, Accurate Correction |
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| 10.2 Hot Dip Galvanizing Process: Pretreatment, Acid Wash, Pre-galvanization, Hot Dip Galvanized, Water Cooling, Zinc Coating Check, Deactivation, Repair or Remedy |
11. SHIPMENT
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| We have been shipping highway guardrail products to so many countries such as: Southeast Asia: Malaysia, Indonesia, Sri Lanka, Brunei, The Phillipines, India, etc. Middle East: U.A.E, Saudi Arabia, Kuwait, Oman, Qatar, etc. Africa: Mauritius, Ghana, South Africa, Kenya, Albania, Algeria, Congo, etc. Southern and Central America: Bolivia, Panama, Brazil, Columbia, Suriname, etc. |
12. CONTACT US
More details see our official Website: highwayguardrails.en.made-in-china.com