Seamless Black Steel Pipe

Product name ASTM A53 Grade B & BS1387 Steel Welded Pipe
Outer diameter 20~457mm(1/2inch~18inch) in theory
Thickness 1.2~15.7mm
Length Any Length Below 16 Meter
Standard GB/T3091-2008 ASTM A53 BS1387
BS EN39 ASTM A500 BS 4568 BS EN39
Chinese Grade Q215 Q235 According to GB/T700;
Q345 According to GB/T1591.
Material Grade A,Grade B,Grade C,Grade D,Grade 50
Usage Used For Water, Gas, Stream,
Combustible Fluids And Other Liquid Delivery
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Product Details

Product Details

Brief Introduction

Seamless Black Steel Pipe

Product NameASTM A53 Grade B & BS1387  Steel Welded Pipe
SizeOD20~457mm(1/2inch~18inch) in theory
LengthAny Length Below 16 Meter
StandardGB/T3091-2008  ASTM A53  BS1387  BS EN39  ASTM A500  BS 4568  BS EN39
MaterialChinese GradeQ215 Q235 According to GB/T700; Q345 According to GB/T1591
Foreign GradeASTMGrade A,Grade B,Grade C,Grade D,Grade 50
UsageUsed For Water, Gas, Stream, Combustible Fluids And Other Liquid Delivery
EndsPlain, Beveled, Thread With Couplings Or Sockets;
Plastic Caps And Steel Rings Can Be Provided If Possible
SurfaceBared, Galvanized, Oiled, Paint, 3layer PE; Or Other Anti-corrosive Treatment
InspectionWith Chemical Composition and Mechanical Properties Analysis; Hydrostatic Test,Dimensional and Visual Inspection, Also With Nondestructive Inspection
TechniqueHot Rolled Or Cold Rolled  ERW
PackageHexagon Shape Package, Covered With Tarpaulin Or Plastic, Containers Or In Bulk
Date of DeliveryAccording to The Specifications And the Quantities Of Each Contract,
Time Start To Begin When We confirm the Date of the Earnest or L/C
Method of PaymentT/T L/C West Union
Method Of DeliveryTerms According To the <INCOTERMS 2000> for International Trading,

Products Advantage


Large holding enterprise group, standard operation, guarantee customers funds more safely


Complete in specification and variety, guarantee one-stop delivery in the shortest time


Any the third part inspection is acceptable


We promise timely shipment and good quality

Hope to do business with customer based on mutual benefit

Seamless Black Steel Pipe

Precision hydraulic seamless steel tube made of precision cold-drawn seamless steel tube treated by black or gray phosphating process and sealed and rust-proof after phosphating.

Process description: the precision cold-drawn seamless steel pipe is made by black or gray phosphating process, and the phosphating steel pipe is closed and rustproof.

PE pipe

Process Diagram of Three-Layer PE/PP Coating

   Carm-up Stove and Blasting


               Water Cooling

      Appearance Examination

       Marking on the pipe

Packing & Delivery

Packing & Delivery

Packing Details : Packing, in Bundles or PVC packing.
Delivery Details : Normally 30-50 days based on the qty during 50-1000tons .

Hexagonal Bundled Pipes

    Hexagonal Bundled Pipes

Red Color Painting on surface

PVC Packing suitable Bulk vessel

Piece by Piece

Big Size Pipes

Hot Dip Galvanized and Threaded with Coupling

3LPE Coating seamless pipe with DIN30670 standard

Hot Dip Galvanized seamless pipe

     Recessing seamless pipe


                High quality 

Passed the ISO9001:2008 quality system authentication and ROHS authentication.

                   High quality

Passed the ISO9001:2008 quality system authentication and ROHS authentication.

                 High quality

Passed the ISO9001:2008 quality system authentication and ROHS authentication.


API 5L -1107 Certificate

Customer Photos

Packaging Details:                                                                                                                   

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

 has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 

We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel coiled pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.

With the sense of responsibility, customer-centered, market-oriented, service-oriented, spot supply as the main body, good reputation, excellent business quality, integrity, conscientious work, perception of society and the spirit of Bianjin, we are committed to creating a win-win, easy and convenient large-scale integrated steel procurement for customers Platform.

The company upholds the enterprise tenet of integrity-based and customer-oriented, constantly strengthens internal management and builds an elite team, and will: all for users throughout the whole process of economic management, for this purpose, to provide customers with high-quality products and excellent services.

Packaging Details:

  1. Small OD: In hexagonal bundle with steel strips

  2.  Large OD: In bulk

  3.  Wrapped in waterproof plastic woven bag 

  4. Filled in wooden cases

  5.  As required

  6. Delivery Detail:Shipped in 7-15 days after payment

Hot Tags: seamless black steel pipe, China, suppliers, manufacturers, factory


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