JIS G3444

JIS G3444

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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 ...


  • Uppruni: Kína
  • Shipping: 20ft, 40ft, magn skip
  • Port: Tianjin
  • Greiðsluskilmálar: L / C, T / T, Western Union
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    Vara Tags

    JIS G3444 Round   Steel Pipe

    Utan þvermál (mm): 21,7-1016,0

    Wall Þykkt (mm): 2,0-22

    Lengd: 1m-12m eða aðlaga lengd

    Yfirborðsmeðferð: svartur, málverk, galvaniseruðu, o.fl.

    Endar: látlaus eða snittari bæði enda með einn enda plasthlíf einum enda tenging

    Pökkun: í knippi eða vafinn með vatni sönnun PVC dúk.

    Sendingar .: lausu eða hlaða í gáma.

    Greiðsla: T / T, L / C, Western Union

    Umsóknir: uppbygging, vatn, gas og svo framvegis.

     

    Tafla 1. Chemical Samsetning

             

    Eining:%

    Tákn um bekk

    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.

    0,30-1,30

    0.040 max.

    0.040 max.

    STK540

    0.23 max.

    0.55 max.

    1.50 max.

    0.040 max.

    0.040 max.

    Bendir a) Ef nauðsyn krefur, Málmblönduefnin aðrir en tilgreind eru í þessari töflu má bæta. b) Að því er rörið af Grade STK540 meira en 12,5 mm í veggþykkt, efnasamsetningu kann að vera háð því aggreement milli kaupanda og framleiðanda.                                                           

     

     

    Tafla 2. vélræna eiginleika

    Tákn um bekk

    Togstyrk N / mm²

    Afrakstur benda á sönnun streitu N / mm²

    Togþoli á Aumur svæði N / mm²

    fletja

    Bendability

    Bil á milli platna (H)

    Bend horn

    inni radíus

    Beitt utan þvermál

    Allir utan þvermál

    Allir utan þvermál

    Allir utan þvermál

    Allir utan þvermál

    50 mm max.

    STK290

    290 mín.

    -

    290 mín.

    2/3 D

    90 °

    6 D

    STK400

    400 mín.

    235 mín.

    400 mín.

    2/3 D

    90 °

    6 D

    STK490

    490 mín.

    315 mín.

    490 mín.

    7/8 D

    90 °

    6 D

    STK800

    500 mín.

    355 mín.

    500 mín.

    7/8 D

    90 °

    6 D

    STK540

    540 mín.

    390 mín.

    540 mín.

    7/8 D

    90 °

    6 D

    ATH 1 D þessarar töflu er utan þvermál rör. NOTE 2 1 Nmm² = 1MPa

     


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