JIS G3444

JIS G3444

Short Description:

JIS G3444 Round  Steel Pipe Outside diameter(mm):21.7-1016.0 Wall Thickness(mm): 2.0-22 Length: 1m-12m or customized length Surface treatment: black, painting, galvanized, etc. Ends:plain or threaded both end with one end plastic cap one end coupling Packing: in bundle or wrapped with water-proof pvc cloth. Shipping.: bulk or load in containers. Payment: T / T, L / C, western union Applications: structure,water,gas and so on.   Table 1. Chemical Composition           Unit:% Symbol of ...


  • Origin: China
  • Shipping: 20ft, 40ft, bulk vessel
  • Port: Tianjin
  • Payment Terms: L/C,T/T,western union
  • Product Detail

    Product Tags

    JIS G3444 Round  Steel Pipe

    Outside diameter(mm):21.7-1016.0

    Wall Thickness(mm): 2.0-22

    Length: 1m-12m or customized length

    Surface treatment: black, painting, galvanized, etc.

    Ends:plain or threaded both end with one end plastic cap one end coupling

    Packing: in bundle or wrapped with water-proof pvc cloth.

    Shipping.: bulk or load in containers.

    Payment: T / T, L / C, western union

    Applications: structure,water,gas and so on.

     

    Table 1. Chemical Composition

             

    Unit:%

    Symbol of grade

    C

    Si

    Mn

    P

    S

    STK290

    -

    -

    -

    0.050 max.

    0.050 max.

    STK400

    0.25 max.

    -

    -

    0.040 max.

    0.040 max.

    STK490

    0.18 max.

    0.55 max.

    1.65 max.

    0.035 max.

    0.035 max.

    STK500

    0.24 max.

    0.35 max.

    0.30 to 1.30

    0.040 max.

    0.040 max.

    STK540

    0.23 max.

    0.55 max.

    1.50 max.

    0.040 max.

    0.040 max.

    Notes                                                                                                                                                                   a)  If necessary,alloying elements other than specified in this table may be added.                                                                                                b)  For the tube of grade STK540 exceeding 12.5 mm in wall thickness,the chemical composition may be subject to the aggreement between the purchaser and the manufacturer.                                                           

     

     

    Table 2. Mechanical Properties

    Symbol of grade

    Tensile strength      N/mm²

    Yield point of proof stress              N/mm²

    Tensile strength in weld zone         N/mm²

    Flattening

    Bendability

    Distance between plates(H)

    Bend angle

    Inside radius

    Applied outside diameter

    All outside diameters

    All outside diameters

    All outside diameters

    All outside diameters

    50 mm max.

    STK290

    290 min.

    -

    290 min.

    2/3 D

    90°

    6 D

    STK400

    400 min.

    235 min.

    400 min.

    2/3 D

    90°

    6 D

    STK490

    490 min.

    315 min.

    490 min.

    7/8 D

    90°

    6 D

    STK800

    500 min.

    355 min.

    500 min.

    7/8 D

    90°

    6 D

    STK540

    540 min.

    390 min.

    540 min.

    7/8 D

    90°

    6 D

    NOTE 1 D of this table is the outside diameter of the tubes.                                                                                                                              NOTE 2 1 Nmm²=1MPa

     


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