Anaerobic annealed steel tube for bending and flaring

Short Description:

Anaerobic annealed tube for bending and flaring is a delivery condition type under DIN 2391/EN10305 and SAE J524. Anaerobic annealed steel pipes: cold rolled or cold drawn precision steel pipes are put into nitrogen or atmosphere shielding gas, and normalized or annealed at different temperatures according to different materials of precision steel pipes.

The surface of the finally cooled pipe is bright and free of stains, and the pipe orifice is flat and has a good appearance. At the same time, because the pipe is completely de stressed in the high temperature furnace, the steel pipe has good mechanical properties and metallographic structure. Finally, each pipe shall be subject to non-destructive testing to ensure that it is completely qualified.

Anaerobic annealed steel pipe is widely used in mechanical processing, liquid transmission, high-pressure pipeline, automobile pipeline, engineering machinery and other fields due to its good performance in bending, flaring and flattening.


  • FOB Price: US $0.5 - 100 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Delivery : Within 10 days
  • Quality : Support third-party detection
  • Payment: TT/LC
  • Product Detail

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    Brief Introduction

    Anaerobic annealed tube for bending and flaring is a delivery condition type under DIN 2391/EN10305 and SAE J524. Anaerobic annealed steel pipes: cold rolled or cold drawn precision steel pipes are put into nitrogen or atmosphere shielding gas, and normalized or annealed at different temperatures according to different materials of precision steel pipes.

    anarrobic annealed tube for bending

    Parameters:

     Grade                         ST35/E235  ST37.4  ST45/E255 ST52/E355
     Standard DIN2391  DIN1630  EN10305 DIN2445 JIS G3445  SAE J524                              
     Delivery Conditon              NBK(+N)    BK(+C)    GBK(+A)   BKW(+LC)    BKS(+SR)
     Size OD4 to 219mm Thickness 0.5-35mm, Length: Accroding to request
     Tolerance Outer Diameter:   According to Standard
    Thickness:           According to Standard
     Finish  Galvanized surface (Sliver/Yellow/Colorful)
    Zinc coating of 8-12um
     Application Hydraulic System;Car/bus;construction vehicle
     Delivery time A.7 days if this goods is stock goods.
    B.20 days if this goods will be produced after order

    Delivery Condition

    Designation Symbol Description
    Cold finished (hard) BK(+C) Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation
    Cold finished (Soft) BKW
    (+LC)
    The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)
    Cold finished and stress-relieved BKS(+SR) Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.
    Annealed GBK(+A) The last Cold forming process is followed by annealing in a controlled atmosphere.
    Normalized NBK(+N) The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

    Certificates:            According to EN 10204 3.1 

    Inspection Items:  

    Tensile stength, Yield stength, Elongation, Flattenging, Flaring;
    Chemical analysis
    Eddy Current Test 100%, Size and surface checking 100%
    
    
    Other test item can be arranged by A Third Party as per request.

     


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