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DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes

Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.
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    Buy cheap DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes from wholesalers
     
    Buy cheap DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes from wholesalers
    • Buy cheap DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes from wholesalers
    • Buy cheap DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes from wholesalers
    • Buy cheap DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes from wholesalers
    • Buy cheap DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes from wholesalers

    DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes

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    Brand Name : DELLOK
    Model Number : HFW
    Certification : CE. ISO,EN10204. 3.1 Cert.
    Price : N/A Contact us for details
    Payment Terms : L/C, T/T Contact us for details
    Supply Ability : 60000 meters month
    Delivery Time : Ex-work within 1 month on recepit of order.
    • Product Details
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    DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes

    Helical Solid Serrated 32mm Stainless Steel Welded Tubes


    A106 Gr.B SMLS Carbon Steel Tube , Helical Welded Solid Type Fin Tubes


    ASTM A106/A106M : Seamless Carbon Steel Pipe for High-Temperature Service


    Detail:

    Items

    General Materials

    Popular ASTM Materials

    Core Tube Material

    Carbon Steel , Alloy Steel, Heat Resistant Steel,
    Stainless Steel etc.

    10#,20#,15CrMo,Cr5Mo,Cr9Mo,1Cr18Ni9Ti,0Cr18Ni9, 00Cr17Ni14Mo2,SA106B,SA106C, SA192, SA179,
    SA178,SA214, SA210-A1, SA210-C,TP304/304L/304H, TP409/410,TP316/316L,TP321/321L,TP347H,T11,T22,T91,etc.

    Fins Material

    Carbon Steel , Alloy Steel, Heat Resistant Steel,
    Stainless Steel etc.

    Q235-BF,08F,08AL, 1Cr18Ni9Ti, 0Cr13, 1Cr13, 0Cr18Ni9, 09CrCuSb, CS,A1008-B,SPHC, SPCC, TP304/304L,TP316/316L,TP321/321L,etc.

    Manufacturing Process: The fin strip is welded continuously and spirally wound onto a polished bare tube. And the tube and fins are bonded together by using high frequency resistance welding technique.

    We produce both solid plain and serrated helical welded steel finned tube. And also, all spiral welding tubes could be bent in the middle or at the end of fin tubes, we call it Hairpin tubes.

    Acceptance Criteria:
    INTERNATIONAL STANDARD FOR DIMENSIONS, TOLERANCES, AND TESTS OF HIGH FREQUENCY RESISTANCE WELDED FINS or the delivery conditions (TDC) of clients.

    Visual check:
    Un-welded parts of fin, fin damage after fining, copper pollution, tears, wrap etc…

    Dimensional check:
    Fin height, fin spacing, fin inclination, fin corrugation, length of finned & un-finned portion etc…

    Bending check:
    Ovality, thickness and area reduction.

    Surface Coating:
    outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form.

    Tube End Finish:
    Bevel @ (30°~35°)

    Bevel Root Size
    0.5mm~1.5mm

    Delivery condition
    Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of helical welded tubes.

    Documentation:
    It shall include QAP, WPS, PQR& WPQ, raw materials mill certificates, inspection and test samples results and warranty certificate of manufacturer.

    Applications:
    The High Frequency Resistance Welded Helical Fin Tubes are widely applied in fired heaters, heat exchanger, boilers, economizers, pre-heaters, coolers, heat pipes, heaters etc….


    Product Details

    Material:

    Carbon Steel , Alloy Steel, Heat Resistant Steel,
    Stainless Steel etc.

    Tube details:

    Tube OD: 19mm min.

    Tube Length: 18 meters max.

    Fin Height: 32 mm max.

    Fin Thickness: 0.8mm min

    Fin Pitch: min. 4 mm for solid fins & 3.3mm for serrated fins.

    Production Capacity:

    Daily production capacity up to 40 tons;

    HFW Fin type:

    solid plain and serrated.


    Specifications:
    A wide range of fin and tube materials could be combinations are available.


    Dimensions Data Sheet We Can Supply.

    Solid Helical Steel Fin Tubes Fabrication Range

    Solid fins(mm)

    Serrated fins

    Min

    Max

    Min

    Max

    Tube OD(mm)

    19

    219

    19

    219

    Fin Height(mm)

    8

    26

    8

    32

    Fin Thickness(mm)

    0.8

    2.8

    1

    1.6

    Fins Density(mm)

    4(250FPM)

    20

    3.3(303FPM)

    20

    Tube Length(mm)

    N/A

    18000

    N/A

    18000

    Additional supply range :
    (1) Tube swaging process for joint of 2 tubes.
    (2) Spacer rings (material: steel) are available.
    (3) One side is solid plain fins and the other is serrated fins, 2 fin types on same tube.

    Quality DELLOK Helical Solid Serrated 32mm Stainless Steel Welded Tubes for sale
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