Products Description

Galvanized steel pipe is also called pre-galvanized steel pipe, as the name suggests is made of galvanized steel pipe. Is the cold-rolled strip steel first galvanized and then galvanized steel in the welding of the steel pipe, because the cold-rolled strip steel pipe using cold-rolled steel first galvanized and then made of pipe, so the wall thickness is more accurate, the wall thickness of galvanized steel pipe and hot-dip galvanized steel pipe of the same specification, galvanized steel pipe is cheaper than hot-dip galvanized steel pipe, the amount of zinc is much lower than hot-dip galvanized steel pipe.
Specification
|
Product Name |
Pre-galvanized Square and Rectangular Steel Pipe |
|
Thickness |
0.5~12.75mm |
|
OD |
20x10-300x400mm and 20x20-400x400mm |
|
Size: |
10x10mm~100x100mm |
|
Zinc Coating |
20-275g |
|
Length |
3-12m or as per customer's requirement |
|
Standard |
BS1387,ASTM A53, ASTM A500, ASTM A513M-06B, GB/T6728-2017 |
|
Material |
Q195~Q235, 10#~45#, Gr.A~Gr.C,DIN~S235JR |
Product Feature

The steel pipe looks bright to the naked eye, the surface is smooth and beautiful, strictly speaking, it also belongs to a kind of hot-dip galvanized pipe, but the processing process is different. Generally, the bare narrow strip is first plated with zinc by continuous hot dipping zinc equipment, processed into galvanized tape, and then the galvanized tape is welded into galvanized pipe. From the process point of view, because the galvanized belt pipe is galvanized before the pipe is made, the diameter of the domestic galvanized belt pipe is below 4 inches, and the wall thickness of the steel pipe is also below 2.4mm.
Production
Pre-galvanized square/rectangular tube is made of hot dipped galvanized steel strip directly.
Pre-Galvanized Square and Rectangular Steel Pipe ends Usually Plain, But Can Be Beveled Or By Your Choice
application
Pre-Galvanized Square and Rectangular Steel Pipe usage for curtain wall, construction, machinery manufacturing, etc
Why tianjin huirun

Our company cooperates with major steel mills and has advanced production lines for sheet and pipe materials, complete testing equipment, and a strict quality assurance system.
We specializes in various kinds of steel concerned building materials. Such as Galvanized round pipe, square/rectangular/Irregular pipe, Scaffold pipe, various steel coils/stripe/plate, PC wire, PC strands, rebar, photovoltaic bracket, Angle steel, U/H/C-shaped steel and so on.
Especially our patented products-Rare Earth Weather & Corrosion Resistant Steel, it is a green, environmentally friendly, and corrosion-resistant new type of steel that can replace traditional galvanizing and rust prevention processes.
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