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Quick Details

  • Standard: API, ASTM, BS, DIN, API 5L, ASTM A106-2006, ASTM A53-2007, BS 1387, DIN EN 10216-1-2004, DIN EN 10217-1-2005
  • Grade: A53-A369, Q195-Q345, ST35-ST52, A106(B,C), A53(A,B), Q195, Q235, St37
  • Thickness: 3 - 60 mm
  • Section Shape: Round
  • Outer Diameter: 20 - 508 mm
  • Place of Origin: Tianjin, China (Mainland)
  • Secondary Or Not: Non-secondary
  • Application: Boiler Pipe
  • Technique: ERW
  • Certification: BSI
  • Surface Treatment: black
  • Special Pipe: EMT Pipe
  • Alloy Or Not: Non-alloy
  • keyword: ASTM A53 GR B Mild carbon seamless Steel Pipe

Packaging & Delivery

Packaging Details standard packing in bundles
Delivery Time 7-15days after received the downpayment


Product Description

DN300 ASTM A53 GR B APL 5L  APL 5CT Mild carbon seamless Steel Pipe in lower price tianjin manufacturer


 2)  Steel Grade: ASTM A106 GRB,A53 GRB. API 5L GRB,API 5 CT N80,K55,A335 P11.P91,DIN ST52,ST44,ST35.8,ST37,ST42,ST45 




3)Outside Diameter:1/2"-20" Or 21.3-508mm




4)  Wall  Thickness:  3-40mm




5)  Application: The products are widely used in fertilizer, petroleum, central-station, boiler, power station, shipping military, chemical industry, environment protection, traffic, metallurgy and mine, printing and dyeing, food industry, medical equipment, and so on.  




Production Equipment :
30 sets of Cold-drawn Machinery (Model: 3 ton to 500 ton) 
Cold-rolled Machinery: Model LD-30, LD-60, LG-90H (L), LG-159H (L) 
Automatic Roller Solution & Annealing Heat Treatment Equipment 
18-meter-long Pickling Sin






 1)      Strictly acc. ASTM,DIN,JIS,EN,GOST etc


 2)      Sample:  We are accept your sample requirement


 3)       Test: Eddy current / hydrostatic/ Ultrasonic/ Intergranular Corrosion or according to customers' request


 4)      Certificate:API, CE ,ISO9001.2000.MTC etc


 5)      Inspection: BV,SGS,others is avaliable.


 High Quality Package :



1) In bundle with strip; 


 2) First packing by plastic bag then strip; Details packing please see the picture in the detial description. 


 3) In bulk 


 4) Client' requirements 


 5) Delivery: 1) Container: 25 tons/container for pipe with usual outer diameter. For 20" container the max length is 5.8m; For 40" container the max length is 11.8m. 


2) Bulk carrier: It is no requirements to the length of the pipe. But its booking space time is long.



Packaging & Shipping


1. Packing: in bundles/in bulk/in plastic packing.

  2.Trade terms:FOB/CFR/CIF/DDU

  3.Shipping port: Xingang Tianjin



   1) Small diameter: Weight >Measurement

                      a. Length: ≤5.8m, loaded in 20FT Container, Max 27tons

                      b. Length: ≤11.8m, loaded in 40 FT Container, Max 27tons

                      c. Length: ≥12m, shipped by bulk vessel. FILO terms

  2) Big dimater: Weight<Measurement, loaded as per container size

                      a. Size of 20 FT Container(inside :5898*2352*2350mm)




  5.Delivery time: Normal size: 7days send from warehouse directly.

                           Speial size: 25-30days custom made for you.




Our Services


1. Free sample can be provided


 2. Small order is acceptable


 3. OEM is acceptable


 4. Any third party testing is acceptable


 5. 12Months quality guarantee



Company Information



  Our company, as a subsidiary of Tianjin Jinnuo Steel Pipe Co., Ltd., is a comprehensive enterprise, which integrates intensive processing, domestic and international trade, logistics and warehousing of steel pipes, carbon steel pipes, galvanized steel pipes, welded steel pipes and seamless steel pipes. 

Our products are widely recognized and trusted by users and gained positive feedbacks and praises. 

We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success! 






1 About the Payment terms: T/T or L/C at sight.


 2 About the quality: a. No damage, no bent


                                 b. no burrs or sharp edges and no scraps


                                 c. Free for oiled&marking


                                 d. All goods can be checked by third party inspection before shipment



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