AASHTO M180
Square Guardrail Post
Part of the Guardrail Post range · Highway Guardrail.
Model: Square post 130 × 130
A square guardrail post is a square hollow section post for high-speed alignments: a galvanized square guardrail post carries a heavier section modulus than the equivalent round post, which is why it is specified on so many motorway projects in Asia and the Middle East. Products Description Guardrail posts play a supporting role in the guardrail Guardrail post, as a holder of highway guardrails, generally determines the barrier’s performance during collisions. The guardrail posts we supply are well designed and made of high…
- Standard AASHTO M180 / EN 1317 / GB/T 31439
- Material Q235B / Q345B (S235JR / S355JR / ASTM A529M)
- Surface Hot-dip galvanized; powder coated on request
- Thickness 4.0–6.0 mm
- MOQ 1 × 20GP container
- Lead time 15–25 days
- Mill test certificate with every shipment
- Shop drawings and setting-out plan included
- Custom lengths, hole patterns and coating weights
Technical specification
| Name | Square post for guardrail |
| Section | Square hollow section 130 × 130 mm |
| Lengths | 1750 / 1850 / 2250 mm, cut to drawing |
| Thickness | 4.0–6.0 mm |
| Material | Q235B / Q345B (S235JR / S355JR / ASTM A529M) |
| Technology | Cold rolled, chamfered and de-burred before galvanizing |
| Surface treatment | Hot-dip galvanized; powder coated on request |
| Zinc coating | ≥ 550 g/m² (≈80 µm), AASHTO M180 |
| Standard | AASHTO M180 / EN 1317 / GB/T 31439 |
| Hole pattern | Drilled or slotted to your beam and bolt spacing |
| Certificate | ISO, BV, CE — mill test certificate with every shipment |
| Notes | Square posts sit beside C, U, sigma, H and flange profiles on the same line; other sections and lengths are produced to your drawing. |
Dimensions shown are the standard range. Non-standard lengths, hole patterns and coating weights are produced to order — send your drawing for a confirmation drawing.
Description
Products Description
Guardrail posts play a supporting role in the guardrail
Guardrail post, as a holder of highway guardrails, generally determines the barrier’s performance during collisions. The guardrail posts we supply are well designed and made of high quality steel, such as Q235, Q345 and Q255 or depend on your needs. Additionally, it features a long service life due to its anti-rust and corrosion resistant characters, which proceed from its superior zinc coating or PVC coating .
According to the place of your intended application, we provide guardrail posts with or without flange plates. Generally, the post without flange plate is mostly fixed to soft soil by post anchors. But if you want to fix it on the concrete road, the post with plate is your best choice for easy installation: Just fasten the post to your desired place with bolts.
Details Images
Manufacturing Technique
Can be applied in the following situtaions:
1. Road/Expressway/Highway Guardrails;
2. Roadway guard rails crash barriers;
3. Roadway crash barriers;
4. Service roads;Car parking lot guardrails;
5. Car parking guardrails;
6. Warehouses;
7. Distribution depots;
8. Industrial barriers;
9. Pedestrian areas;
10. Bridge guardrail.
Key features
- C, U, Sigma, H, flange, square and round profiles in one factory
- Steel grade Q235B / Q345B (S235JR / S355JR / ASTM A529M)
- Hot-dip galvanized to AASHTO M180, minimum 550 g/m² coating
- Drilled or slotted holes cut to your beam and bolt spacing
- Cut to length, chamfered and de-burred before galvanizing
Where it is used
- Beam-and-post barrier runs
- Soil, asphalt and concrete embedment
- Bridge decks and abutments
- Rock and hard-ground sites
- Median and shoulder installations
- Guardrail repair and replacement
Complete the system
A barrier is supplied as a set. These are the components that go with this item on a typical installation.
Not sure which specification fits?
Tell us the road class, design speed and the standard your client is working to. Our engineer will come back with the section, the coating weight and the post spacing that meet it — and the price for the quantity you need.
Ask an engineerOther items in this range
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U Shape Guardrail Post
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