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


API5L X52 Pipeline/Spiral Submerged Arc Welded Steel Pipes

 Spiral Welded Steel Pipe 

Standard/Material:API5L Gr.B/X42/X52/X56/X60

 spiral double-side submerged arc weled steel pipe


 SSAW Welded Steel Pipe




  ASTMA139,ASTMA252, API 5L, DIN, EN10217/10219/10224,BS,JIS

 Out Diameter


 Wall  Thickness



 ASTMA53 Gr.B;API5L Gr.B,X42~X70; ASTMA252 Gr.2,Gr.3;

 ST37,ST42,ST52;EN10025 S235JR,S275JR,S355JR etc.


 5.8-18m,or as customer’s requirements.

 Place of Origin



 Middle East,Europe,South-east Asia,USA,Canada,South America.


 SAW welding


1.       Piling project

2.       heat-supply project

 3.  conveying water,coal gas,drainage and other Low and middle pressure fluids

 4.  API5L Petroleunm and natural gas pipeline

 5.  Chemistry industry

 6.  Electric power plant circulating pipe


1.Bundle packing or in bulk,

2. Bevelled or plain ends  as per buyer's request,

3. Marks: as per customer's request,

 4.  Surface treatment:with or without varnish/2PP/2PE/3PE/3PP coating,

 5.  Plastic protecting caps at ends.

 Delivery Time

about 20days after receipt of irrevocable L/C at sight or 30% deposite

All our products

 1.  seamless steel pipe

 2.  ERW steel pipe

 3. casing pipe

 4.  oil tube

 5.  hot-rolled steel pipe

 6.  spiral steel pipe

 7.  hot-galvanized steel pipe

 Stainless steel pipe|

API steel pipe|
ERW steel pipe|
Alloy steel pipe|
spiral steel pipe|

Galvanized steel pipe|DSC03950


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