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Factory Prefabricated Flanged Heavy Galvanized Steel Column Bolt Installation For Municipal Road Guardrail Structure
Product Description
Hot dip galvanized welded H steel column is heavy-duty prefabricated structural steel member fabricated by welding channel steel or steel plates into H cross-section, with thick connection flange plates fully welded at both ends and pre-drilled anchor bolt holes. After all welding and machining procedures are completed in factory, the whole pillar goes through integral hot dip galvanized anti-corrosion treatment with uniform 60–120μm zinc coating, effectively resisting rainwater, coastal salt mist, road deicing salt and industrial chemical corrosion for long-term outdoor service.
The H-shaped cross-section delivers excellent vertical load capacity and lateral wind resistance, widely used as main foundation support for photovoltaic power stations, highway guardrail structures and factory steel buildings. End flanges enable full bolted connection on site without field welding, greatly shortening construction cycle and lowering high-altitude operation risks.
Full customization is available for column total length, H section size, flange dimension, hole layout and steel thickness according to construction drawings. Finished columns are bundled with steel straps, and flange faces are protected by foam wrap to avoid galvanized layer damage during transportation.
We provide 1-year quality warranty under standard installation and normal service. Our factory holds ISO9001, ISO14001, ISO45001 three-system certifications, complete welding inspection and zinc thickness test reports can be supplied for overseas engineering bidding projects.
Application Scenarios
Large ground photovoltaic power station main foundation columns, highway anti-collision guardrail main support posts, industrial workshop steel structure uprights, sewage plant platform heavy support pillars, outdoor large billboard main columns, bridge ancillary structure supporting posts.
FAQ
Q1: What are advantages of fabricated welded H column over hot rolled H column?
A1: Customizable section size, flange dimension and hole layout for special solar and road foundation requirements with better cost efficiency for bulk orders.
Q2: Can HDG finish fit coastal solar and northern highway projects?
A2: Monolithic hot dip galvanized coating delivers stable salt spray and deicing salt corrosion resistance for long outdoor service.
Q3: Can column length and flange hole pattern be customized?
A3: Pillar height, H section specification, flange size and bolt hole layout are fully customizable per construction drawings.
Q4: Is field welding required during installation?
A4: All welding and drilling are finished in factory, only flange bolt tightening is needed on site without hot work.
Q5: How to protect galvanized layer on flanges during delivery?
A5: Flange contact surfaces are wrapped with foam padding before strapping to avoid scratch damage during loading and transit.
