Products

Seamless Steel Pipe
Seamless Steel Pipe

    Seamless Steel Pipe/Tube (SMLS Pipe/Tube)

     
    Types
    Large diameter 
    Precision
    Thin wall
    Thickness wall
      

    Materials
    ASTM
    ASTM A53 / ASTM A106 / ASTM A179 / ASTM A192 / ASTM A210 / ASTM A210 / ASTM A213
    ASTM A312 / ASTM A333 / ASTM A335 / ASTM A519 / ASTM A789
    API  
    API 5L GR.B / X42 / X46 / X52 / X56 / X60 / X65 / X70
    DIN/EN
    DN 17175/EN10216-2 / DIN 2391/EN10305-1 / DIN 1629/EN10216-1

     
     
    Hot rolled
    Continuous rolling is the most advanced technology for producing hot rolled seamless steel pipe of modern industry.It creates high quality seamless steel pipe efficiently, even for high alloy pipe and light wall pipe.
    Size Range: 2″(60.3mm) to 20″(508mm)
    Delivery Condition: As roll/ Normalized
    Cold drawn
    Used for producing small size pipe. There are several times of cold forming process, so yield strength and tensile strength values increase, while elongation and toughness values decrease. A heat treatment must to be applied for each cold forming operation. Comparing hot rolled pipe, cold drawn pipe maintains precise dimension, smooth surface and shining appearance.
    Size Range: 1/2″(21.3mm) to 1-1/2″(48.3mm)
    Delivery Condition: Cold Drawn/ Hard, Cold Drawn / Soft, Cold Drawn and Stress Relief, Annealed, Normalized
    Cold rolled
    As another type of cold forming process, cold rolled mill also works at room temperature to stretch large size pipe to required small size. Comparing cold drawn mill ,it takes pilger mill with fewer cold forming processes and lower productivity, but come out the pie in much precise size and shinning apperance.
    Size Range: 1/2″(21.3mm) to 1-1/2″(48.3mm)
    Delivery Condition: Cold roll, Annealed, Normalized

     



    Uses
    For Chilled Water, Steam, 
    Heat Exchanger, Boiler Manufacturing       
    For Construction, Structure,Industrial, Fire Fighting
    For Drain/sewage, Dredging, Irrigation    
    For Oil and Gas
    For Marine/offshore 











     



    Quality Inspection
    Outside diameter, ellipse  inspection   Calipers, vernier caliper should be taken. The caliper should be perpendicular to the axis of the steel pipe in checking, measuring the maximum and the minimum point when the pipe rotated slowly. Founding the outer diameter of large or small, you should mark it in time.
    Wall thickness inspection Micrometer is the main tool that is adopted. When you check, left hand holds the micrometer stand, with right hand rotation induced wheel, and the wire rod should be coincident with the diameter of the measuring point. Once found that the wall thickness is not qualified, it should be marked in time.
    Length inspection The steel tape can be measured directly by metallic tape.
    Bending inspection With the tools of level, feeler and line.
    End profile inspection At two ends of the steel tube should be cut into specified angle and remove burrs. The method of inspection adopts angle square and general use tube end groove clamp in the field.
    Non-destructive test The common inspection methods of NDT are visual testing (VT), ultrasonic testing (UT), radiographic testing (RT), hydrostatic testing. Anson International co, ltd uses ultrasonic testing (UT) and hydrostatic testing to inspect its line pipes.
    Out Diameter                                                                    Wall Thickness
    1/2" (21.3mm) ~ 36" (914.4mm)                                                             2.11mm ~ 60mm                   
                                                                                         
    NOMINAL  PIPE  SIZE OD(mm) NOMINAL WALL THICKNESS
    DN NB(inch) ASME SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS
    15 1/2" 21.3
     
    2.11   2.41 2.77 2.77   3.73 3.73       4.78 7.47
    20 3/4" 26.7 2.11   2.41 2.87 2.87   3.91 3.91       5.56 7.82
    25 1" 33.4 2.77   2.9 3.38 3.38   4.55 4.55       6.35 9.09
    32 1.1/4" 42.2 2.77   2.97 3.56 3.56   4.85 4.85       6.35 9.7
    40 1.1/2" 48.3 2.77   3.18 3.68 3.68   5.08 5.08       7.14 10.15
    50 2" 60.3 2.77   3.18 3.91 3.91   5.54 5.54       8.74 11.07
    65 2.1/2" 73 3.05   4.78 5.16 5.16   7.01 7.01       9.53 14.02
    80 3" 88.9 3.05   4.78 5.49 5.49   7.62 7.62       11.13 15.25
    90 3.1/2" 101.6 3.05   4.78 5.74 5.74   8.08 8.08          
    100 4" 114.3 3.05   4.78 6.02 6.02   8.56 8.56   11.13   13.49 17.12
    125 5" 141.3 3.4     6.55 6.55   9.53 9.53   12.7   15.88 19.05
    150 6" 168.3 3.4     7.11 7.11   10.97 10.97   14.27   18.26 21.95
    200 8" 219.1 3.76 6.35 7.04 8.18 8.18 10.31 12.7 12.7 15.09 18.26 20.62 23.01 22.23
    250 10" 273 4.19 6.35 7.8 9.27 9.27 12.7 12.7 15.09 18.26 21.44 25.4 28.58 25.4
    300 12" 323.8 4.57 6.35 8.38 9.53 10.31 14.27 12.7 17.48 21.44 25.4 28.58 33.32 25.4
    350 14" 355.6 6.35 7.92 9.53 9.53 11.13 15.09 12.7 19.05 23.83 27.79 31.75 35.71  
    400 16" 406.4 6.35 7.92 9.53 9.53 12.7 16.66 12.7 21.44 26.19 30.96 36.53 40.19  
    450 18" 457.2 6.35 7.92 11.13 9.53 14.27 19.05 12.7 23.83 39.36 34.93 39.67 45.24  
    500 20" 508 6.35 9.53 12.7 9.53 15.09 20.62 12.7 26.19 32.54 38.1 44.45 50.01  
    550 22" 558.8 6.35 9.53 12.7 9.53   22.23 12.7 28.58 34.93 41.28 47.63 53.98  
    600 24" 609.6 6.35 9.53 14.27 9.53 17.48 24.61 12.7 30.96 38.89 46.02 52.37 59.54  
    650 26" 660.4 7.92 12.7   9.53     12.7            
    700 28" 711.2 7.92 12.7 15.88 9.53     12.7            
    750 30" 762 7.92 12.7 15.88 9.53     12.7            
    800 32" 812.8 7.92 12.7 15.88 9.53 17.48   12.7            
    850 34" 863.6 7.92 12.7 15.88 9.53 17.48   12.7            
    900 36" 914.4 7.92 12.7 15.88 9.53 19.05   12.7            


     
    seamless steel pipe

Know more about this product price, catalogue, mill test certificate,  please inquiry to: sales@nan-steel.com

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