small diameter steel tubing

3 125

 1.Size:2-3/8" to 4-1/2" 

2.Grade:J55,N80-1,N80Q,L80-1,L80-9Cr, L80-13Cr,P110 
3.Type of End-Finish:PE,NUE,EUE

 API 5CT Tubing J55 N80 pass the API 5CT/ISO9001 quality management system certification.Obtain qualifications, Use API emblem

 Technical standard:

1) ASTM A53

2) ASTM A106

3) API 5L


5) EN 10210

6) GB/T8163-1999

7)ISO 9001



2>ASTM A106 GR.A ,A106 Gr.B,A53 Gr.A,A53 Gr.B,ASTM A179-C,A214-C,A192,A226,A315-B,A178-C,A210-A-1


4>DIN 17175 ST35.8,DIN 17175 ST45.8,DIN 1629 ST35,DIN 1629 ST45,DIN1626 ST37,



Other steel grade is available as per clients requirements.

 Ordinary Sizes:

 1) Outsider diameter: 60 - 273mm

 2) Wall Thickness: 4- 30mm

 3) Length:6-24meters


 5)Beveled/plain end or varnished as per clients confirmation

 Other specifications available according to customers' requirements


Generally for conveying gas and oil in both oil and natural gas industries 


as per customers' requirement(Hard marking or spray marking)

 packing & shipment:

as per customers' requirement

 Dimensions, Mechanical properties, Chemical compositions:

Refer to API 5CT or as per clients requirements

 Please contact us If you are interested in our products.


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Our company covers an area of 80, 000 m2 with a total assets of 90 million Yuan. There are 360 staff members including 80 technicians in our company. .

We also establish an effective complete quality control system. In 2003, our company obtained the certificate of ISO9001 Quality System Authentification!