Galvanized steel pipes Material Features & Key Differences

The DX-series grades are cold-rolled low-carbon steels primarily used for galvanizing. They differ mainly in their formability and suitability for specific processes like bending, deep drawing, or stamping.

All grades are typically galvanized with coating weights ranging from Z40 to Z275, depending on application requirements.

Applications of galvanized steel tubes

These galvanized steel tubes are widely used in:

• Construction frameworks and guard rails

• Greenhouse and irrigation systems

• Automotive structural components

• Electrical conduit and cable protection

• Steel furniture and industrial racking

Their versatility, cost-effectiveness, and compatibility with forming processes make them a global favorite.

Production Process & Technology

The manufacturing of DX-series galvanized steel pipes involves several controlled stages:

Cold Rolling – Steel coils are reduced in thickness and smoothed for uniformity.

Pickling – Oxides are removed from the surface.

Hot-Dip Galvanizing – Pipes are immersed in molten zinc to apply anti-corrosion coating.

Cooling & Sizing – Steel pipes are cooled and shaped (round, square, rectangular).

Cutting & Inspection – Pipes are cut to length and undergo quality checks.

Packaging – Final products are bundled and prepared for shipment.

With ISO-certified plants and automated lines, Chinese manufacturers ensure consistency, fast delivery, and global-standard quality.