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    Amapayipi e-helical-seam carbon steel pipes astm a139 grade a, b, c

    I-Helical-Seam Carbon Steel Pipes ASTM A139 Grade A, B, C efakiwe
    • Amapayipi e-helical-seam carbon steel pipes astm a139 grade a, b, c
    • Amapayipi e-helical-seam carbon steel pipes astm a139 grade a, b, c

    Incazelo emfushane:

    Lokhu okucacisiwe kufaka amamaki amahlanu e-Electric Fusion (arc) -Ishizi lensimbi yensimbi enopheyiselwe ngogesi. Ipayipi lenzelwe ukudlulisela uketshezi, igesi noma umphunga.

    Ngemigqa engu-13 yokukhiqiza yepayipi lensimbi e-Spiral, iCangzhou Spiral Steel yamapayipi e-CO, Ltd iyakwazi ukukhiqiza amapayipi ensimbi angenamthungo nge-21900mm kuya ku-25.4mm kuze kufike ku-25.4mm.


    Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

    Impahla yemishini

    Grade a Ibanga B Ibanga C Ibanga d Ebangeni e
    Ukukhiqiza amandla, amaminithi, i-MPA (KSI) 330 (48) 415 (60) 415 (60) 415 (60) 445 (66)
    Amandla asheshayo, amaminithi, i-MPA (KSI) 205 (30) 240 (35) 290 (42) 315 (46) I-360 (52)

    Ukwakheka kwamakhemikhali

    Isithako semvelo

    Ukwakheka, max,%

    Grade a

    Ibanga B

    Ibanga C

    Ibanga d

    Ebangeni e

    Ikhabhoni

    0.25

    0.26

    0.28

    0.30

    0.30

    Mangangane

    1.00

    1.00

    1.20

    1.30

    1.40

    Ifosphorus

    0.035

    0.035

    0.035

    0.035

    0.035

    Isibabule

    0.035

    0.035

    0.035

    0.035

    0.035

    Ukuhlolwa kweHydrostatic

    Ubude bepayipi ngalinye buzovivinywa ngumenzi ngengcindezi ye-hydrostatic ezokhiqiza odongeni lwamapayipi ingcindezi engaphansi kwamandla ka-60% acacisiwe amancane okushisa avumayo ekushiseni kwegumbi. Ingcindezi izonqunywa yi-equation elandelayo:
    P = 2st / d

    Ukuhlukahluka okuvumelekile ezinsimbi nasezilinganiso

    Ubude bepayipi ngalinye buzosindwa ngokwehlukana futhi isisindo salo ngeke bahlukane ngaphezu kwe-10% ngaphezulu noma ngo-5.5% ngaphansi kwesisindo salo sethiyori, kubalwa kusetshenziswa ubude bayo nobude bayo ngeyunithi ngayinye ubude kanye nesisindo sayo ngeyunithi yayo ubude kanye nesisindo sayo ngeyunithi yayo ngayinye ubude.
    Ububanzi obungaphandle ngeke buhluka kakhulu kune- ± 1% kusuka kububanzi obucacisiwe bangaphandle.
    Ubukhulu bodonga nganoma yisiphi isikhathi ngeke bungabi ngaphezu kwe-12,5% ngaphansi kobukhulu obudongeni obucacisiwe.

    Ubude

    Ubude obungahleliwe obungahleliwe: 16 kuya ku-25ft (4.88 kuya ku-7.62m)
    Ubude obungahleliwe obuphindwe kabili: ngaphezulu kwe-25ft kuya ku-35ft (7.62 kuye ku-10.67m)
    Ubude be-Uniform: Ukuhluka okuvumelekile ± 1in

    Iphelela

    Izinselo zamapayipe zizofakwa iziphetho ezicacile, nemibungu emaphethelweni izosuswa
    Lapho ipayipi liphela lichazwe ukuba yi-Bevel Ends, i-angle izoba ngama-30 kuye kwangama-35 degree

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