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Tianjin Zhaolida Steel Pipe Co.,Ltd

Tianjin Helon International Trading Co.,Ltd

Mobile TEL: +86 15900249379 (WhatsApp&WeChat)

E-mail: lucy@credit1995.com

Skype: tjzhaolida QQ: 386692006
Address: No.9 of Technology Street, DaQiuZhuang Industrial District,Jinghai County, Tianjin, China 


 

Hollow Section Square Black Steel Pipe For Construction Material Q345 Black Rhs Steel Tubes

Manufacture Hot sale square steel hollow section pipe/tube 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...

Hollow section square black steel pipe for construction material q345 black rhs steel tubes


General Introduction for square black steel pipe:

1)Item: Square black steel pipe

2) Sizes:10*10mm-100*100mm

           wall thickness: SCH30,SCH40,STD,XS,SCH80,SCH160, XXS etc. ( 0.8-12mm.)

3) Standard: astm a500/a53 bs1387/en10219/ en39/ en1139/ GB/T3091

4) Material: q195/q235/q345

5) Section shape:round/square/rectangular/oval

6) Technique:electronic resistance welded (ERW )

7)  Surface treatment: Galvanized,light oil, hot dipped galvanized, black painting, etc.

8) Ends: thread(screw) with coupling or cap; beveled; rolled groove; plain end

9)Application: fence & greenhouse structure/roof building/ furniture structure/ welding table,etc

10)Kg/Pcs=(OD-Thickness)*Thickness*Length*0.02466

Standard sizes for square black steel pipe:











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

Packing and Loading:

A. In hexagonal bundle by steel strips

B. With water-proof bag

C. In bulk 
d. According to requests

20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High)  25~27 Ton

40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High)  25~27 Ton


Contact information: 

Wency Lee

Email: helon_wency@tjzhaolida.com

WhatsApp/Wechat: + 86 18610131845

Skype: wency0505


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