AASHTO M180 specifies requirements for corrugated sheet-steel guardrail beams, including material and coating-related provisions. It does not alone certify a complete roadside barrier system. Purchase an AASHTO M180 W-Beam only after the project documents confirm the applicable edition, rail geometry, coating, posts, terminals, transitions, inspection method and required complete-system documentation.
Conclusion: Use AASHTO M180 as the relevant beam-material requirement only when it is named in the project documents.
Applicable conditions: The final rail, coating and components depend on the contract, approved drawing, road authority and site environment.
Evidence: Verify the specified edition, drawing, BOQ, material records, coating records and required complete-system documentation.
Exception: An AASHTO M180 beam is not automatically interchangeable with another system or proof of a barrier's crash performance.
AASHTO M180 W-Beam material requirements must be read with the project drawing and all applicable coating and complete-system documents. Do not treat a rail material specification as a complete-system performance claim.
Shandong Sinoguardrail Traffic Facilities Co., Ltd. supplies hot-dipped galvanized W-Beam guardrail components for drawing-based procurement. AASHTO M180, EN 1317 and coating documents have different scopes. Confirm the required material, geometry, coating and complete-system documentation against the project contract before production.
Product records may list zinc-coating options of 550 g/m2 or 1100 g/m2. The contract must define the required mass, measurement basis, inspection method and acceptance criteria for the actual exposure environment. Do not infer an expected coating thickness or service life from a coating mass alone.
| Parameter | Project Requirement to Confirm |
|---|---|
| Product Name | Hot-dipped galvanized W-Beam (two-wave profile), subject to the approved drawing |
| Material Grades | State the required grade and mechanical-property requirements in the contract. Do not assume grades from different standards are interchangeable without approval. |
| Effective Dimensions | Confirm total and effective length, width, wave depth, hole pattern and tolerances from the approved drawing. Catalog dimensions are not universal system dimensions. |
| Nominal Thickness | Specify the required nominal base-metal thickness and tolerance. Do not substitute a catalog option without project approval. |
| Zinc Coating Weight | Product records may list 550 g/m2 or 1100 g/m2 options. Confirm the governing coating document, measurement basis and acceptance criteria in the contract. |
| Surface Treatment | State the required surface treatment, coating document, inspection method and repair procedure in the purchase specification. |
| Matching Posts & Spacers | Confirm the specified post, spacer, section, spacing, embedment, coating and compatibility with the approved system drawing. |
| Standard Hardware Set | Confirm bolt type, diameter, length, strength grade, washers, coating and quantity from the approved component schedule. |
Use the approved drawing and bill of quantities (BOQ) to confirm the complete component schedule for the project:
Approved drawing and BOQ: Confirm rail profile, length, hole pattern, post spacing, terminal layout, transitions and quantities.
Material and coating records: State the steel grade, thickness, coating requirement, measurement basis, test method and lot traceability required by the contract.
Complete-system documentation: Keep material, galvanizing and any project-required system-performance documentation distinct, and verify the scope for the approved configuration.
Inspection and packing scope: Agree inspection points, acceptance criteria, records, marking, packing, destination and delivery terms before production.
Send the approved drawing, BOQ, material and coating requirements, quantity, inspection scope and destination. We can review the requested rail and matching components before quotation.
For drawings, BOQ-based purchasing and W-Beam product configurations, see our W-Beam guardrail product configurations.
SinoGuardrail supplies highway guardrails and roller barrier systems for contractors, distributors and infrastructure project buyers in Southeast Asia, the Middle East, Africa and South America.
Contact: Mr.Zhang
Phone: +86 13306356181
Email: [email protected]
Add: Guanxian Economic Development Zone, Liaocheng City, Shandong Province, China
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