• China manufacture Best price weld big diameter square steel hollow section

China manufacture Best price weld big diameter square steel hollow section

Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding.

Product Details

Quick Details

Description

Quick Details

  • Standard: ASTM, BS, DIN, GB, ANSI A210-1996, ASTM A106-2006, BS 1387, BS EN10025, BS EN10219, DIN EN 10208-1-1998, GB 18248-2000
  • Grade: 10#-45#, A53-A369, Q195-Q345, 10#, 20#, 45#, A53(A,B), Q195, Q215, Q235, Q345
  • Thickness: 0.5 - 25 mm
  • Section Shape: Square
  • Outer Diameter: 10mm*10mm-600mm*600mm
  • Place of Origin: Tianjin, China (Mainland)
  • Secondary Or Not: Non-secondary
  • Application: Structure Pipe
  • Technique: Hot Rolled
  • Certification: CE
  • Surface Treatment: oiled, black painted or hot dip galvanized
  • Special Pipe: EMT Pipe
  • Alloy Or Not: Non-alloy
  • Product name: weld big diameter square steel hollow section
  • Shape: Square. Rectangular
  • Length: 1-12m or customer's requestment
  • place of origin: Tianjin. Tangshan, China
  • Color: Silver, black
  • Usage: Construction Structure
  • Surface: painted or customers't Requirement
  • Materail: Low carbon steel
  • Delivery time: Within 7-20 Days about square tube
  • Packing: Bundles or as your requestments about square tube

Packaging & Delivery

Packaging Details About packing 
1. Package: weld big diameter square steel hollow section 
2. Loading: if 20ft: not more than 25mt and the length is not 
more than 5.8m. if 40 ft: not more than 27mt. 
3.about the mark: could no mark on the body or mark as your 
order.
Delivery Time Shipped in 25 days after payment
Product Description

What is welded square steel pipe?


Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding. Before welding two pipes together, avoid any gaps between the two pipes. While welding, take measures to ensure the continual alignment of the two pipes.                            

                   
OD mm
WT mm
OD mm
WT mm
OD mm
WT mm
OD mm
WT mm
OD mm
WT mm
20x20
1.0-3.0
130x30
2.5-12
20x30
1.0-3.0
50x80
1.5-6.0
100x150
2.5-12
25x25
1.0-3.0
140x140
2.5-12
20x40
1.0-3.0
50x90
1.5-6.0
100x200
2.5-12
30x30
1.0-3.0
150x150
2.5-12
25x40
1.0-3.0
50x100
1.5-6.0
100x250
2.5-12
40x40
1.0-5.0
160x160
2.5-12
30x40
1.0-3.0
50x120
1.5-6.0
100x300
2.5-12
50x50
1.0-5.0
180x180
2.5-12
30x50
1.0-3.0
60x80
1.5-6.0
100x400
2.5-12
60x60
1.0-5.0
200x200
3.0-12
30x60
1.0-3.0
60x90
1.5-6.0
150x200
2.5-12
70x70
1.0-5.0
220x220
3.5-12
40x50
1.0-3.0
60x100
1.5-6.0
150x250
3.0-12
80x80
1.0-5.0
250x250
4.0-12
40x60
1.0-3.0
60x120
1.5-6.0
150x300
3.0-12
90x90
1.0-6.0
300x300
1.5-12
40x80
1.0-3.0
75x125
1.5-6.0
200x300
4.5-12
100x100
1.0-6.0
400x400
6.0-12
40x100
1.0-6.0
80x100
1.5-6.0
200x400
4.5-12
120x120
1.0-6.0
500x500
6.0-12
50x70
1.0-6.0
80x120
1.5-6.0
300x400
4.5-12

Material list

Elements
Chemical Composition%
Mechanical Property
Material
C%
Mn%
S%
P%
Si%
Yield Point
Tensile Strength
Elongation
           
(Mpa)
(Mpa)
(%)
Q195
0.06-0.12
0.25-0.50
<0.05
<0.045
<0.3
>195
315-430
32-33
Q235
0.12-0.2
0.30-0.70
<0.045
<0.045
<0.3
>235
375-500
24-26
Q345
<0.20
1.0-1.6
<0.04
<0.04
<0.55
>345
470-630
21-22
Product Detailed
Product Processing

Suaface oiling.

Surface painting

Packing and Laoding

Company Profile

Tianjin TF Steel Pipe Co.,Ltd relies on Tianjin feilong tube co.,ltd. It's located in BinHai New Area, Tianjin, closing to the Daqiuzhuang which is known as "The First Village in China and Steel City". The Tang-Jin Highway and Tanggu Highway provides a good location advantages. The company specialized in hot-dip galvanized steel pipe, galvanized round pipe, galvanized rectangular pipe ,square tube, seamless pipe, galvanized steel coil, PPGI, pre-painted coil, angle steel, channel steel, steel support and scaffolding, door type scaffolding spot concentrated supplier, and so on, in North China. There are 20 high-frequency welded pipe production line, 6 hot galvanizing production line, 12 expansion of production lines with advanced testing laboratory equipment. It becomes hot dip galvanized integrated tube manufacturing company. The annual sales are 1 million 200 thousand tons, the exports are 100 thousand tons, with an annual output of 20mm--426mm galvanized pipe are 1 million tons, 300 thousand tons of Oil casing, 200 thousand tons of cold-rolled strip. Existing staff of 120 thousand tons, There are 1000 professional staffs and technical personnel, senior title of 8 people, the plant area are 600 acres, building area of 50 thousand square meters, fixed assets of hundreds of millions of dollars. 
We has passed the ISO9001 international quality system certification in July 2001.We obtained a certificate of import and export enterprises in 2002 .We achieved CE certification in 2006.We has achieved API certification of United States and the production of 5L API, 5CT products. The companies have been awarded as the integrity of the enterprise, national Mianjian product, .the municipal government of Tianjin "Valuing Reputation, Abiding by Contract"company, well-known enterprises, AAA credit enterprises, well-known trademarks in Tianjin and Tianjin famous brand products.

 

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