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Highway Guardrail Posts

Highway Guardrail C Post

  • Product Category: Highway Guardrail Posts
  • Brand / Origin: SinoGuardrail / Shandong, China
  • Description: Hot-dip galvanized C-channel guardrail posts for W-beam and Thrie-beam highway barrier systems. Custom dimensions, hole patterns, steel grades and zinc coatings are available.
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Hot-Dip Galvanized C-Channel Guardrail Post

Cold roll-formed C-Channel Profile (C-Section) structural steel posts engineered for highway crash barrier systems. Fully compliant with AASHTO M180, ASTM A36 / A123, and EN 1317 standards with up to 1100 g/m² zinc protection.

25+ Years
Manufacturing & Export
1100 g/m²
Heavy HDG Zinc Mass
MASH TL4
Crash Tested (100km/h)
ISO / CE / BV / SGS
15-Stage QC Verification

Product Overview

Shandong Sinoguardrail Traffic Facilities Co., Ltd. manufactures precision-engineered Highway Guardrail C Posts (C-Channel Posts / C-Section Steel Posts). Designed to provide balanced lateral stiffness and controlled energy dissipation, C-posts anchor W-Beam Guardrails and Thrie-Beam Guardrails reliably into roadside soil shoulders or concrete foundations.

Roll-formed from high-yield structural steel coils (Q235B, Q345B, SS355JR, ASTM A36), our C posts feature optimized flange return geometry for superior strength-to-weight efficiency and rapid pile-driving installation. Treated with continuous hot-dip galvanizing from 550 g/m² to 1100 g/m² (approx. 80µm to 160µm thickness), they deliver 30+ years of maintenance-free service life under extreme desert climates across Saudi Arabia and the UAE, as well as humid tropical coastal corridors throughout Southeast Asia and South America.

Technical Specifications & Project Parameters

Parameter Standard Engineering Specification
Product Profile Cold Roll-Formed C-Channel Section (C Post / C-Section Upright)
Standard Section Sizes • C100: 100 mm × 50 mm × 25 mm × 4.0 mm / 4.5 mm
• C125: 125 mm × 62.5 mm × 25 mm × 4.0 mm / 4.5 mm
• C150: 150 mm × 75 mm × 25 mm × 4.5 mm / 5.0 mm (Custom drawings supported)
Standard Lengths 1200 mm, 1500 mm, 1800 mm, 1830 mm, 1980 mm, 2000 mm, 2200 mm
Material Grades Q235B (ASTM A36 / SS400), Q345B (ASTM A572 Grade 50 / SS355JR)
Zinc Coating Standard 550 g/m² (Class A, 78µm) or Heavy-Duty 1100 g/m² (Class B, 150µm) according to AASHTO M180 / ASTM A123 / ISO 1461
Punching & Hole Pattern CNC pre-punched slots (20mm slotted/round holes) for M16 connection bolts and blockout alignment
System Compatibility W-Beam Guardrail, Thrie-Beam Guardrail,            C-Spacers, and Base Plate Mounts
Complementary Hardware M16×35 / M16×50 Fasteners, Flat Plate Washers (75×44×4.0mm), Backup Plates,            Delineators

Complete Highway Crash Barrier Systems & Post Range

Sinoguardrail supplies matched structural barrier packages engineered for international EPC infrastructure tenders:

Why Choose Sinoguardrail for Guardrail C Posts?

  • China's Leading Certified Manufacturer: The only Chinese manufacturer holding authentic MASH TL4 crash test reports (100km/h). Fully certified under ISO, SGS, CE, and Bureau Veritas (BV).

  • 25+ Years Global Export Experience: Proven record supplying major highway EPC contractors across Saudi Arabia, UAE, Philippines, Indonesia, Chile, and Brazil with a 98% client reorder rate.

  • 15-Stage QC Strict Quality Control: Continuous automated roll-forming, CNC hole precision checks, tensile yield verification, and gravimetric zinc thickness audits for every batch.

  • Project Drawing Customization & Quick Delivery: Tooling flexibility for custom web/flange dimensions, base-plate attachments, and pre-bundled container loading for rapid overseas dispatch.

Need High-Strength Highway Guardrail C Posts for Your Project?

Contact our road safety engineering team today for factory-direct container pricing, technical drawing confirmation, and instant international shipping quotations.

Official Website: https://www.sinoguardrail.com | Tel & WhatsApp: +86 13306356181