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St52 NBK Status Precision Stainless Tubing Cold Drawing

    Buy cheap St52 NBK Status Precision Stainless Tubing Cold Drawing from wholesalers
     
    Buy cheap St52 NBK Status Precision Stainless Tubing Cold Drawing from wholesalers
    • Buy cheap St52 NBK Status Precision Stainless Tubing Cold Drawing from wholesalers
    • Buy cheap St52 NBK Status Precision Stainless Tubing Cold Drawing from wholesalers
    • Buy cheap St52 NBK Status Precision Stainless Tubing Cold Drawing from wholesalers

    St52 NBK Status Precision Stainless Tubing Cold Drawing

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    Brand Name : Joyruns
    Model Number : Seamless precision NBK steel Tube
    Certification : ISO9000
    Price : Negotiable
    Payment Terms : TT OT 100% LC AT SIGHT
    Supply Ability : 1000Ton/month
    Delivery Time : 30DAYS
    • Product Details
    • Company Profile

    St52 NBK Status Precision Stainless Tubing Cold Drawing

    Cold Drawn Carbon Steel Seamless Tubing DIN2391 St37.4 NBK status

    Precision Seamless Steel Tube: Norm DIN2391 EN10305, High quality carbon precision steel tubes St35 St37.4 St52, cold drawing, bright heat treatment without oxidation (NBK status), non-destructive testing, cleaning, phosphating, anti-rust oil dipping, the application for machine tools industry, construction machinery, ship building industry hydraulic system, automotive steel tube, and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.


    Products Specification :
    Production Standard :DIN 2391/DIN 1629/EN 10305/ASTM A179/JIS G3445
    Finished Condition : NBK(+N) / GBK(+A) / BK(+C) / BKW(+LC) / BKS(+SR)
    Material: ST35(E235) / ST45(E255) / ST52(E355) / ST37.4

    Size Range and Tolerance
    OD Size Range (mm)DIN toleranceSpecial toleranceSpecial high precision
    ø4~30mm±0.08mm±0.05mm±0.03mm
    ø31~40mm±0.15mm±0.05mm±0.03mm
    ø41~50mm±0.20mm±0.08mm±0.03mm
    ø51~60mm±0.25mm±0.10mm±0.03mm
    ø61~70mm±0.30mm±0.15mm±0.05mm
    ø71~80mm±0.35mm±0.20mm±0.05mm
    ø81~90mm±0.40mm±0.25mm±0.05mm
    ø91~100mm±0.45mm±0.35mm±0.05mm

    Wall Thickness RangeDIN toleranceStandard toleranceSpecial high precision
    0.5~15mm±10%±5~8%±5~7%

    Size List : all dimensions are by metric.
    OD×WTOD×WTOD×WTOD×WTOD×WTOD×WTOD×WTOD×WT
    Ø4×0.5Ø12×1.5Ø16×2.5Ø22×1.5Ø28×2.0Ø34×2.0Ø38×3.0Ø48×3.5
    Ø4×1.0Ø12×2.0Ø16×3.0Ø22×2.0Ø28×2.5Ø34×2.5Ø38×3.5Ø48×5.0
    Ø5×1.0Ø12×2.5Ø18×1.0Ø22×2.5Ø28×3.0Ø34×3.0Ø38×4.0Ø50×5.0
    Ø6×1.0Ø14×1.0Ø18×1.5Ø22×3.0Ø28×3.5Ø34×3.5Ø38×5.0Ø50×6.0
    Ø6×1.5Ø14×1.5Ø18×2.0Ø22×3.5Ø28×4.0Ø34×4.0Ø38×6.0Ø60×3.0
    Ø6×2.0Ø14×2.0Ø18×2.5Ø22×4.0Ø30×1.5Ø34×4.5Ø40×4.0Ø60×5.0
    Ø8×1.0Ø14×2.5Ø18×3.0Ø22×5.0Ø30×2.0Ø34×5.0Ø42×2.0Ø60×6.0
    Ø8×1.5Ø14×3.0Ø19×2.0Ø24×2.0Ø30×2.5Ø35×1.5Ø42×3.0Ø60×7.0
    Ø8×2.0Ø15×1.0Ø20×1.0Ø25×2.0Ø30×3.0Ø35×2.0Ø42×3.5Ø60×8.0
    Ø8×2.5Ø15×1.5Ø20×1.5Ø25×2.5Ø30×3.5Ø35×2.5Ø42×4.0Ø65×5.0
    Ø9×1.5Ø15×2.0Ø20×2.0Ø25×3.0Ø30×4.0Ø35×3.0Ø42×4.5Ø65×8.0
    Ø10×1.0Ø15×2.5Ø20×2.5Ø25×4.0Ø30×5.0Ø35×3.5Ø42×5.0Ø70×4.0
    Ø10×1.5Ø15×3.0Ø20×3.0Ø27×3.0Ø32×2.0Ø35×4.0Ø42×6.0Ø70×5.0
    Ø10×2.0Ø16×1.0Ø20×3.5Ø27×3.5Ø32×2.5Ø35×4.5Ø45×3.0Ø70×8.0
    Ø10×3.5Ø16×1.5Ø20×4.0Ø27×4.0Ø32×3.0Ø35×5.0Ø45×6.0Ø90×5.0
    Ø12×1.0Ø16×2.0Ø22×1.0Ø28×1.5Ø32×4.0Ø38×2.5Ø48×3.0Ø114×4.0

    Features:

    Carbon Steel Seamless Tubes

    ● DIN highly accurate, cold drawn and bright carbon steel seamless tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.
    ● High accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall.
    ● The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized.
    ● The color of NBK tube is Bright Black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.


    EN 10305-1 Chemical composition(%)

    Steel grade
    Name

    Steel
    Number

    C(% max)

    Si(% max)

    Mn(% max)

    P(% max)

    S(% max)

    E215

    1.0212

    0.10

    0.05

    0.70

    0.025

    0.015

    E235

    1.0308

    0.17

    0.35

    1.20

    0.025

    0.015

    E355

    1.0580

    0.22

    0.55

    1.60

    0.025

    0.015


    EN 10305-1 Mechanical and technological properties

    Yield strength
    (min Mpa)    		Tensile strength
    (min Mpa)    		Elongation
    (min %)
    215290-43030
    235340-48025
    355490-63022

    Condition on delivery of EN 10305-1:

    Term

    Symbol

    Explanation

    Cold-finished/hard
    (cold-finished as-drawn)

    BK

    No heat treatment after the last cold-forming process. The tubes, therefore, have only low deformability.

    Cold-finished/soft
    (lightly cold-worked)

    BKW

    After the last heat treatment, there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.

    Annealed

    GBK

    After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.

    Normalized

    NBK

    The tubes are annealed above the upper transformation point in a controlled atmosphere or under a vacuum.



    Product Tags:

    NBK status precision stainless tubing

      

    St52 precision stainless tubing

      

    St52 erw precision tubes

      
    Quality St52 NBK Status Precision Stainless Tubing Cold Drawing for sale

    St52 NBK Status Precision Stainless Tubing Cold Drawing

    Company Info.
    Changzhou Joyruns Steel Tube CO.,LTD
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