Galvanized Fence Posts
About Galvanized Fence Posts
Galvanized steel fence posts provide structural support with excellent corrosion resistance from their zinc coating. Typically conforming to A500 Grade B standards for strength. Ideal for chain-link and security fencing applications.
Quick Facts
- Material: Galvanized Steel Tubing
- ASTM Standard: A500 Grade B (Typical)
- Available Sizes: ODs 1-3/8" to 1-7/8", Walls 14-18 gauge
- Location: Los Angeles warehouse
- Services: Custom size, same-day pickup
Overview
Galvanized fence posts are steel tubes coated with a protective layer of zinc to prevent rust and corrosion, making them ideal for outdoor use. The galvanization process, typically hot-dip, creates a durable, abrasion-resistant finish that significantly extends the service life of the steel. These posts form the essential framework for various fencing systems, providing the necessary strength to withstand environmental stressors like wind and impact while requiring minimal maintenance over their lifespan.
Manufactured from high-strength steel, these posts are commonly produced as welded round tubing. The combination of steel's inherent durability and the corrosion-proof zinc coating ensures reliability for residential, commercial, and industrial enclosures. They are designed for easy installation, compatible with standard fence fittings, rails, and mesh materials. Bobco Metals stocks multiple diameters and wall thicknesses to meet the specific load requirements for different fence heights and applications.
Technical Specifications
Mechanical Properties (Typical for A500 Grade B)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 58,000 | PSI |
| Yield Strength | 46,000 | PSI |
| Elongation | 23 | % |
Applicable Standards
- ASTM A500: Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
- ASTM A123: Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
Common Applications
- Residential Fencing: Perimeter posts for chain-link fences - Provides long-lasting, low-maintenance security for homes.
- Commercial Security: Framework for security fences at business parks and storage facilities - High strength resists tampering and impact.
- Industrial Enclosures: Posts for safety barriers around machinery and equipment - Durable construction protects personnel and assets.
- Agricultural: Livestock enclosures and farm perimeter fencing - Resists corrosion from weather and animal contact.
- Public Works: Backstops for baseball fields and tennis court enclosures - Withstands frequent impacts and outdoor exposure.
- Construction Sites: Temporary fencing panels and site security barriers - Reusable and durable for temporary installations.
- Gates: Hinge posts and latch posts for swing or slide gates - Strong enough to support the weight and movement of gates.
- Signage: Posts for mounting small signs or notices - A simple, weather-resistant support structure.
Working with Galvanized Fence Posts
Machining
Machinability is generally fair. The zinc coating can be abrasive to tooling. Use sharp tools and moderate speeds. Avoid inhaling dust or fumes when cutting or grinding galvanized steel.
Welding
Welding galvanized steel requires special precautions. The zinc coating must be removed from the weld area to prevent weld porosity and zinc fume inhalation, which is toxic. Proper ventilation and respiratory protection are mandatory. Use welding techniques suitable for thin-walled steel.
Finishing
The galvanized finish is self-protecting and requires no additional treatment. If painting is desired, the surface must be properly cleaned and primed with a wash primer or a primer specifically designed for galvanized surfaces to ensure adhesion.
Related Products
For applications requiring different properties, consider Hot Rolled Black Pipe for paintable structural uses, or Schedule 40 Galvanized Pipe for heavy-duty, high-pressure, or plumbing applications where a thicker wall and threaded connections are needed.
Frequently Asked Questions
Q: What is the difference between a fence post and standard galvanized pipe?
A: Galvanized fence posts are typically lighter-gauge (thinner wall) tubes, such as 14-18 gauge, designed specifically for fencing structures. Standard galvanized pipe, like Schedule 40, has a much thicker wall, is rated for pressure, and can be threaded, making it suitable for plumbing and heavy structural uses.
Q: How long does a galvanized fence post last?
A: The lifespan depends on the thickness of the zinc coating and the environmental conditions. A hot-dip galvanized post can last 20 to 50+ years in most environments before showing significant signs of rust, offering excellent long-term value and low maintenance.
Q: Can I weld galvanized fence posts?
A: Yes, but it requires significant safety precautions. The zinc coating must be ground off the weld zone, and proper ventilation and a respirator are essential to avoid inhaling toxic zinc fumes. It is often easier to use mechanical fittings designed for fence construction.
Stock & Custom Sizes
Available ODs: 1-3/8", 1-5/8", 1-7/8". Wall thicknesses: 18 gauge (0.048"), 16 gauge (0.060"), and 14 gauge (0.075"). Standard lengths: 24 ft. Custom size available.
Same-day cutting and pickup available.
View Sizes & PricingNeed Galvanized Fence Posts? Contact Bobco Metals for availability and Los Angeles pickup.
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