Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of galvanized fence steel post for support uses in China. Welcome to wholesale customized galvanized fence steel post for support uses at low price from our factory. If you have any enquiry about free sample and cheap products, please feel free to email us.
Products Description
Steel fence is a high-strength, durable protective fencing system manufactured from premium hot-rolled steel / galvanized steel / powder-coated steel (custom optional). It features excellent rigidity, weather resistance, and anti-corrosion performance, suitable for long-term outdoor use.
Compared to wood or vinyl fencing, steel fences offer superior durability and require less maintenance, especially when coated with protective finishes like powder coating or hot-dip galvanization.
Main Types of Steel Fence
Welded Wire Mesh Fence: Strong, economical, widely used for garden, residential, farm.
Chain Link Fence: Flexible, durable, commonly for sports field, factory, school.
Steel Palisade Fence: High security, anti-climb, used in industrial, power station, commercial area.
Ornamental Steel Fence: Decorative design, powder coated, for villa, community, park.
Steel Tubular Fence: Hollow steel tube structure, sturdy, easy installation.
Battened Steel Fence: Vertical steel bars, good privacy and security.
Main Materials of Steel Fence
Mild Carbon Steel (Q235 / Q355): Most common, high strength, low cost, used for general fencing.
Hot-Dip Galvanized Steel: Carbon steel coated with zinc, excellent anti-corrosion for outdoor, garden, industrial use.
Powder-Coated Steel: Galvanized steel with polyester powder coating, colorful, weatherproof, decorative.
Stainless Steel (304 / 316): High corrosion resistance, used for coastal, seaside, food industry, high-end projects.
Galvanized + Powder Coated Steel: Double protection, longest service life, widely used in residential, factory, school fencing.
Key Features Of Steel Fence
1)High-quality steel construction for superior strength and stability
2)Hot-dip galvanized + polyester powder coating for rust and UV resistance
3)Smooth, burr-free surface with neat welding
4)Easy to install with standard mounting accessories
5)Good visibility while providing reliable security and boundary definition
6)Resistant to impact, deformation, and harsh weather conditions
Application of Steel Fence
Residential Use: Garden borders, yard privacy, pool safety fencing
Agricultural Use: Livestock containment, vegetable plot protection
Industrial Use: Factory perimeters, warehouse isolation nets
Public Infrastructure: Roadside green belt barriers, park railings
Tourist Attractions: Custom-designed stainless steel safety fences that blend with the environment
In landscaping, bendable steel fence panels allow customization into "I", "L", square, or wave shapes to fit irregular spaces .
Manufacturing Process of Steel Fence
Common Specifications (Customizable) of Steel Fence
|
Specification |
Description |
|
Height |
30–175 cm (1–5.7 ft) |
|
Length |
6–13.6 meters (20–45 ft) |
|
Material thickness |
1.5–3.3 mm steel tube or sheet |
|
Surface treatment |
Powder-coated / Galvanized / PVC-coated |
|
Color |
Black, Green, White, Bronze |
|
Installation method |
Ground stake / Post-in-hole / Wall-mounted |
Standard of Steel Fence
1. Chinese Standards
GB/T 3091 – Electric resistance welded steel tubes
GB/T 13912 – Hot-dip galvanized coating on steel
GB/T 18226 – Highway traffic engineering components
JG/T 151 – Steel fence for residential & civil use
2. International Standards
ASTM A653 – Steel sheet, zinc-coated (galvanized)
ASTM F1043 – Metallic fence framework
EN 10219 – Cold formed welded structural hollow sections
EN 10244 – Steel tubes and fittings for galvanizing
BS EN 845 – Masonry fences & retaining walls
ISO 1461 – Hot-dip galvanized coatings on fabricated iron/steel
3. Surface Coating Standards
Qualicoat – Powder coating quality standard
ASTM B117 – Salt spray test standard
FAQ
1. What is the difference between Pre-Galvanized and Hot-DIP Galvanized steel fences?
Answer: * Pre-Galvanized: The steel is galvanized before being formed into tubes. It has a smoother finish and is more cost-effective, ideal for residential use.
Hot-DIP Galvanized (HDG): The entire welded panel is dipped into zinc. This provides 360° protection, especially at welding points, making it the best choice for high-humidity or coastal environments to prevent rust.
2. How do you prevent the fence from rusting at the welding points?
Answer: This is a top concern. We use High-Silicon welding wire and apply a zinc-rich epoxy primer immediately after welding. Furthermore, our premium powder coating creates a non-porous barrier that prevents moisture from reaching the weld, ensuring a rust-free life of 10–15+ years.
3. Can the fence panels be installed on sloped or uneven ground?
Answer: Yes. We offer "Rackable" panels. These are designed with specialized internal components or "swing" pickets that allow the panel to follow the contour of the ground (up to a certain degree) without the need for "stepping" the fence, which can leave unsightly gaps.
4. What is the standard height and picket spacing for pool safety compliance?
Answer: While local laws vary (e.g., BOCA in the US or Australian Standards), the general rule for pool safety is a minimum height of 48 inches (1220mm) and a picket spacing of less than 4 inches (100mm) to prevent small children from squeezing through. We can customize any panel to meet your local building codes.
5. Is the fence "Assembly" or "Welded" (Pre-assembled)?
Answer: * Welded Panels: Arrive ready to install. They are stronger and save on-site labor costs but take up more shipping space.
DIY/Component Fence: Arrives in pieces (rails and pickets). This significantly reduces shipping costs (fits more in a container) but requires more time and labor to assemble on-site.
6. How do I choose between "Digger-in" (In-ground) and "Flanged" (Bolt-down) posts?
Answer: * In-ground: The post is usually 50cm–60cm longer than the fence height and is set directly into a concrete hole. This is the most secure method for soil or grass.
Flanged: The post has a welded base plate with holes. This is used when installing onto existing concrete surfaces or walls using expansion bolts.
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