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  • Unitedsteel Hollow section factory is specialized in High frequency welded Hollow section, Submerged arc welded Hollow Section, Hot rolled and Cold drawn Seamless Hollow section exporting enterprises. Our factory had large type of cold bending hollow section steel GH200, GH300, GH450, and GH550 size.

    The main size is from SHS50*50 to SHS550*550mm, Thick is 2.5mm to 30mm

    The products are Square Pipe/tube, Rectangular Pipe/tube, low alloy Square Pipe/tube, Seamless Square Pipe/tube, Hot rolled Galvanized Square Pipe/tube and so on.

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  S355K2H Square Pipe, S355K2H hollow section,S355K2H Square tube

  • S355K2H Square Pipe, S355K2H hollow section,S355K2H Square tube

     

     

    Unitedsteel Hollow section factory exported S355K2H Square Pipe, S355K2H hollow section,S355K2H Square tube

     

    Adopt standard: S355K2H steel EN10210-1

    The number of this European Standard(EN 10210)

    The symbol S is structural steel, 275 for the minimum yield strength in thickness not greater than 16mm.

    The Symbol J and number 0 or 2 mean for the qualities with specified impact properties at 0 and -20 respectively.

    The capital letter H indicates hollow sections.

     

    About S355K2H detail informationplease consult technical date in following.

     

    S355K2H  The Chemical composition –Ladle analysis for product thickness≤65mm

    Designation

    Type of deoxidation

    Sub

    Grop

    C

    %

    max.

    Nominal thickness(mm)

    Si

    %

    max.

     

    Mn

    %

    max.

     

    P

    %

    max.

     

    S

    %

    max.

     

    N

    %

    max.

     

    According to EN 10027-1 and IC 10

    According to EN 10027-2

    ≤40

    >40

    ≤65

    S355K2H

    1.0576

    FF

    QS

    0.22

    0.22

    0.55

    1.60

    0.035

    0.035

    -

     

    1)The deoxidation methods are designated as follows:

    FF-Full killed steel containing nitrogen binding elements in amounts sufficient to bind available nitrogen (e.g. min. 0.020% total Al, or 0.015% soluble Al).

    2)QS-quality steel.

    3)It is permissible to exceed the specified values provided that for each increase of 0.001%N the P max content will be reduced by 0.005%,the N content of the ladle analysis ,however,shall not be more than 0.012%

    4)The max. value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0.020% with a minimum  AL/N ratio of 2:1, or if sufficient other N-binding elements are present. The N-binding elements shall be recorded in Inspection Document.

     

    S355K2H  Mechanical properties for non-alloy structural steel hollow section

    Designation

    Minimum yield strength REh in N/mm2

    Tensile

    strength Rm in N/mm2

    Minimum percentage elongation L0-5,65√S0

    Impact properties

    According to EN 10027-1 and IC 10

    According to EN 10027-2

    Nominal thickness

    in mm

    Nominal thickness

    in mm

    Longitudinal

    Transverse

    Test temperature

    Minimum average absorbed energy(J)for standard test pieces

    ≤16

    >16

    ≤40

    >40

    ≤65

    <3

     

    3≤65

    Nominal thickness in mm

    ≤40

    >40

    ≤65

    ≤40

    >40

    ≤65

    S355K2H

    1.0576

    355

    345

    335

    510-680

    490-630

    22

    21

    20

    19

    -20

    46

     

    Production Size:

    Rectangular Tube

     

     Rectangular Tube

    Size

    Thick

    Length

     

    Size

    Thick

    Length

    mm

    mm

    Meters

     

    mm

    mm

    Meters

    500*500mm

    8-25mm

    3m-12m

     

    300*300mm

    8-25mm

    3m-12m

    220*220mm

    8-25mm

    3m-12m

     

    150*150mm

    5-14mm

    3m-12m

    130*130mm

    4-12mm

    3m-12m

     

    80*80mm

    4-12mm

    3m-12m

    450*450mm

    8-25mm

    3m-12m

     

    280*280mm

    8-25mm

    3m-12m

    200*200mm

    8-25mm

    3m-12m

     

    140*140mm

    4-14mm

    3m-12m

    120*120mm

    4-12mm

    3m-12m

     

    60*60mm

    4-12mm

    3m-12m

    400*400mm

    8-25mm

    3m-12m

     

    250*250mm

    8-25mm

    3m-12m

    180*180mm

    7-20mm

    3m-12m

     

    135*135mm

    4-14mm

    3m-12m

    110*110mm

    4-12mm

    3m-12m

     

    50*50mm

    4-12mm

    3m-12m

    350*350mm

    8-25mm

    3m-12m

     

    40*40mm

    4-10mm

    3m-12m

    160*160mm

    5-16mm

    3m-12m

     

    30*30mm

    3-6mm

    3m-12m

    100*100mm

    4-12mm

    3m-12m

     

    20*20mm

    2-4mm

    3m-12m

     

    For more information in quality certificate or inquiry in competitive official quotation, please contact us by email or calling.

     

     



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