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  • Cangzhou Steel Pipe Group (CSPG) Co., Ltd.
  • ADD:No.92 Jiefang East Rd., Cangzhou City, Hebei Province, China
  • TEL:+86-31-75673271
  • MOBILE:+8615373302068
  • E-MAIL:ella@cnspipe.com
  • Hot Rolled Seamless Steel Pipe

    Detailed Images for ssaw water pipe line/spiral welded steel pipe supplier Hot rolled seamless steel pipe deformed process Hot-rolled seamless steel pipe production base deformation process can be summarized as three stages: perforation, extension and finishing. Process flow chart of hot rolled...
    Product Details:

    Product Name
    Hot rolled Seamless steel pipe for gas and oil seamless large limited spot API5L PSL1 Production in China
    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 for International Trading,

    Detailed Images for ssaw water pipe  line/spiral welded steel pipe supplier


    Hot rolled seamless steel pipe deformed process

    Hot-rolled seamless steel pipe production base  deformation process can be summarized as three stages: perforation, extension  and finishing.


    Process flow chart of hot rolled seamless steel pipe

    The main purpose of the perforation process is to become  a solid round billet piercing hollow shell. Capillary in the specifications,  accuracy and surface quality can not meet the requirements of the finished  product, further improvements are needed to deform the metal through. The main  purpose of the stretching machine is further reduced sectional view (main  compression wall) for a larger axial extension, so that the capillary improved  dimensional accuracy, surface quality and organizational performance.

    After stretching machine rolled steel pipe shortage  collectively need further molding mill in order to achieve the requirements of  the finished pipe. Rolled steel due to pass in the method widely used in the production of seamless steel tubes.

    So far, due to the method pass rolling steel can be  divided into two categories: core pension without rolling rolling (hollow body  rolling), and with the mandrel. Sizing machines, reducing mill and stretch reducing mill belonging to the hole without mandrel type continuous rolling  mills are generally coffin. Its main purpose is to reduce the diameter of the  deformation process or sizing get finished steel, the wall thickness of process  control, can make thinning, thickening or nearly unchanged.

    All the traditional hole-type rolling machine with  mandrel belong to extend machine. The main purpose is to reduce the deformation  process perforated capillary wall thickness and outer diameter roll passes in the deformation zone and the mandrel posed, for a larger axial extension. At  the same time a certain improvement in the organization, performance, accuracy,  surface quality.

    Tech & Service of Seamless pipe

    Seamless pipes are extensively applied for the nuclear  device, gas, petrochemical, ship building and boiler industries. Seamless pipes  dominates 65% of market share in Chinese boiler industry.

    How to make seamless pipe(seamless pipe process)?


    Piercing process

    The cross roll piercing and pilger rolling process in the size range from  approx. 250 to 660 mm outside diameter.


    Pipe weld cracks

    Often follow different mechanisms can be divided into two types of thermal  cracking and cold cracking.


    Calculate a steel pipe?

    Pipe fittings are necessary to join together pipes, or to change the direction  of an existing pipe.


    Pipe beveling

    Pipe beveling is the process where an angle is formed between the edge of the  end of a pipe or tube and a plane perpendicular to the surface.


    Pipe cutting

    Cutting tools have a grinding wheel piece cutting machine (also known as  toothless saw), hand saw, cutter and other hand tools.


    Packing the  steel pipes

    There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are  two principles that are vital for any method.

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