Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association


API 5L Gr. B ERW Steel Pipe

 The main products are Steel pipes. We have two mills of ourselves which producing ERW and SSAW Steel Pipes. Meanwhile, we have seven years of good cooperation with reputable LSAW, Seamless Pipe and Square Pipe mills. And all the mills have certification of API 5L; API 5CT; ISO9000. Products fully satisfy high export demand. Now we are cooperating with many famous companies around the world. 

I am Andy Kang, the export manager of Tianjin Boai Enterprise. I have been working 6 years in this field. I can provide all-round service from producing to destination. My abundant professional experience could satisfy you well by saving your Cost and Energy. 

Galvanized steel pipe|
Oil pipeline |
Welded steel Pipe
If any new inquiry, welcome here and I would like to offer you our latest price! 
Wish we will promote business as well as friendship! 

The following are the pipes we can supply, for your reference. 
ERW Pipes, Outside Diameter: 2-30(inch)/ 60.3-762(mm); Wall Thickness: 3-20(mm); 
SSAW Pipes, Outside Diameter: 8-80(Inch)/219mm-2040(mm); Wall Thickness: 5-24(mm); 
Seamless Pipes, Outside Diameter: 1-36(inch)/33.4-762(mm); Wall Thickness: 2-35(mm); 
LSAW Pipes, Outside Diameter: 12-56(inch)/323.8-1420(mm); Wall Thickness: 5-38(mm); 

Look forward to hearing from you.

Item Details  of  straight   welded carbon   steel  pipe
Outer  Diameter 1-30  inch
Wall  Thickness 3mm----25.4mm
Length 5m-----18  m  Standard & Cut Length
Usage Line  Pipe, Casing  And  Tubing, Fluid  Pipe,   Water  Delievery, 
Heating  Pipe, Power  Pipe,   Structure  Pipe, Scaffold, Piling  Pipe
Manufacture  Processes Raw  material  Test→ Uncoiling→ Strip  leveling   → End  Cutting→ End  Shearing  and  Welding→   Accumlator→ Forming→ Telepathy  Welding→   Seam  Heat  Treatment→ Air/Water  Cooling→   Body/Seam  UT→ Sizing  Straightening→ Cutting → Visual  and  Dimension  Inspection→ Hydraulic  Test → End  Beveling→ Flatten  Test→ Seam/End  UT→   Length-Measuring  and  Weighing→ Coating-Marking→ Storage
Ends  Processing Bevelled  or  Plain  End
Surface  Process 1  Oiled
2  Galvanized
3  3PE  Anti-corruption  coated    
4  According  to  the  sustomers'   requirement
Test  Equipment
Raw  Material  Test Tensile  Test  , Yeild  Strength, Elogation, Impact  Test,     Chemical  Analysis, 
Hardness  Test, Charpy  Impact  Test,   Metallographic  Examination
Final  Product  Test Hydraulic  Test,   On-line  and  off-line  Ultrasonic  Test,   Tensile  Test  , Yeild  Strength, Elogation, Hardness  Test,   Charpy  Impact  , Flattening  Test Chemical  Analysis, Metallographic  Examination
Package 1  Naked
2  Both  ends  with  a  plastic  cap  , then  put  the  pipe  into    a  bundle  covered  by  plastic       -cloth  accroding  to  the  size    of  the  pipe  with  steel  belt  tied
3  According  to  the  sustomers'   requirement
Main  Market Middle  East,   South  and  North  America,   Europe,   Asia, Oceania.   Southeast  Asia
ERW steel pipe|
Seamless steel pipe|
Alloy steel pipe|
spiral steel pipe|


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