Products Description
Pre-galvanized Tube is also called pre-galvanized steel pipe, as the name suggests is made of galvanized steel pipe. It's 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 tube |
|
Material |
Q195~Q235, 10#~45#, Gr.A~Gr.C,DIN~S235JR |
|
Outer Diameter |
12mm~114mm |
|
Standard |
BS1387,ASTM A53, ASTM A500, ASTM A513M-06B, GB/T6728-2017 |
|
Zinc Coating |
20-275g |
|
Length |
In4-12m or as per customer's requirement |
|
Steel Grade |
Chemical Composition |
Mechanical Properties |
||||||||||
|
|
C(%) |
Si(%) ≤ |
Mn(%) |
P(%)≤ |
S(%)≤ |
Ni(%)≤ |
Cr(%)≤ |
Cu(%)≤ |
Yield Strenegth ≤ |
Tensile Strength Mpa |
Elongation (%) |
|
|
Q195 |
0.06-0.12 |
0.3 |
0.25-0.50 |
0.045 |
0.05 |
0.03 |
0.03 |
0.03 |
195 |
315-390 |
32 |
|
|
Q215 |
0.09-0.15 |
0.3 |
0.25-0.50 |
0.045 |
0.05 |
0.03 |
0.03 |
0.03 |
215 |
335-410 |
26 |
|
|
Q215B |
0.09-0.15 |
0.3 |
0.25-0.50 |
0.045 |
0.045 |
0.03 |
0.03 |
0.03 |
215 |
335-410 |
26 |
|
|
Q235A |
0.14-0.22 |
0.3 |
0.3-0.65 |
0.045 |
0.05 |
0.03 |
0.03 |
0.03 |
235 |
375-460 |
21 |
|
|
Q235B |
0.14-0.22 |
0.3 |
0.3-0.70 |
0.045 |
0.045 |
0.03 |
0.03 |
0.03 |
235 |
375-460 |
21 |
|
|
Q235C |
≤0.18 |
0.3 |
0.35-0.80 |
0.04 |
0.04 |
0.03 |
0.03 |
0.03 |
235 |
375-460 |
21 |
|
|
Q235D |
≤0.17 |
0.3 |
0.35-0.80 |
0.035 |
0.035 |
0.03 |
0.03 |
0.03 |
235 |
375-460 |
21 |
|
Product Feature
The steel tube looks bright to the naked eye, the surface is smooth and beautiful, strictly speaking, it also belongs to a kind of hot-dip galvanized tube, 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 tube.
application
From the process point of view, because the galvanized belt tube is galvanized before the tube is made, the diameter of the domestic galvanized belt tube is below 4 inches, and the wall thickness of the steel tube is also below 2.4mm.
(1)It is usually used for structural construction.
(2) Can be used in agriculture, fences, Bridges and other fields.
(3) Round tubes can be used as columnar props.
(4) Chemical industry, machinery, public utilities
Thickness of Pre-galvanized Steel Tube is about 0.35mm~2.5mm;
Why tianjin huirun
|
Export History |
|
|
Country |
Products |
|
Myanmar |
Pre-galvanized square and rectangular hollow section |
|
Guatemala |
Pre-galvanized round steel tubes for greenhouse |
|
Guinea-Bissau |
Pre-galvanized round steel tubes and square and rectangular hollow section |
|
Vietnam |
Hot dipped galvanized steel tubes |
|
Sri Lanka |
Scaffolding steel tubes |
|
Peru |
Galvanized steel coils |
|
Burkina Faso |
Square steel tubes, angle bars, bright-annealed steel tubes |
|
Bolivia |
Hot dipped galvanized steel tubes |
|
Brazil |
Galvanized steel conduit tubes |
|
Hongkong |
Steel planks |
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