Manufacturing Process:
Pre-Galvanizing: This involves rolling the steel sheet through a molten bath of zinc before it is shaped into pipes. The sheet is then cut to length and formed into pipe shapes.
Coating: The zinc coating provides a protective barrier against moisture and corrosive elements, extending the pipe's lifespan.
Properties:
Corrosion Resistance: The zinc coating acts as a sacrificial layer, meaning it corrodes first before the steel underneath, providing protection against rust and corrosion.
Cost-Effective: Compared to hot-dip galvanized pipes, pre-galvanized pipes are usually less expensive due to the streamlined manufacturing process.
Smooth Finish: Pre-galvanized pipes have a smooth and consistent finish, which can be aesthetically pleasing and functional for certain applications.
Applications:
Construction: Used in structural applications such as scaffolding, fencing, and guardrails due to their strength and durability.
Limitations:
Thickness of Coating: The zinc coating 30g/m2 on pre galvanized pipes is generally thinner compared to hot dip galvanized pipes 200g/m2, which can make them less durable in highly corrosive environments.
Cut Edges: When pre galvanized pipes are cut, the exposed edges are not coated with zinc, which can lead to rusting if not properly treated.
| Product | Pre Galvanized Steel Pipe | Specification |
| Material | Carbon Steel | OD: 20-113mm
Thickness:0.8-2.2mm Length: 5.8-6.0m |
| Grade | Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B |
|
| Surface | Zinc coating 30-100g/m2 | Usage |
| Ends | Plain ends | Greenhouse steel pipe
Fence post steel pipe Furniture structure steel pipe Conduit steel pipe |
| Or Threaded ends |
Packing and Delivery:
Packing Details : in hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles.
Delivery Details : Depending on the QTY, normally one month.