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    Cov kav hlau carbon helical-seam ASTM A139 Qib A, B, C

    Cov kav hlau carbon helical-seam ASTM A139 Qib A, B, C Duab Tshwj Xeeb
    • Cov kav hlau carbon helical-seam ASTM A139 Qib A, B, C
    • Cov kav hlau carbon helical-seam ASTM A139 Qib A, B, C

    Kev Piav Qhia Luv:

    Cov lus qhia no suav nrog tsib qib ntawm cov yeeb nkab hlau hluav taws xob-fusion (arc)-welded helical-seam. Cov yeeb nkab no yog rau kev xa cov kua, roj lossis pa.

    Nrog 13 kab ntau lawm ntawm cov yeeb nkab hlau kauv, Cangzhou Spiral Steel pipes group Co., Ltd. muaj peev xwm tsim cov yeeb nkab hlau helical-seam nrog sab nraud txoj kab uas hla los ntawm 219mm txog 3500mm thiab phab ntsa tuab txog li 25.4mm.


    Cov Khoom Qhia Txog Khoom

    Cov Cim Npe Khoom

    Khoom Siv Kho Tshuab

    Qib A Qib B Qib C Qib D Qib E
    Lub zog tawm los, min, Mpa (KSI) 330(48) 415(60) 415(60) 415(60) 445(66)
    Lub zog tensile, min, Mpa (KSI) 205(30) 240(35) 290(42) 315(46) 360(52)

    Cov Tshuaj Lom Zem

    Khoom

    Cov khoom xyaw, Max,%

    Qib A

    Qib B

    Qib C

    Qib D

    Qib E

    Cov pa roj carbon

    0.25

    0.26

    0.28

    0.30

    0.30

    Manganese

    1.00

    1.00

    1.20

    1.30

    1.40

    Phosphorus

    0.035

    0.035

    0.035

    0.035

    0.035

    Sulfur

    0.035

    0.035

    0.035

    0.035

    0.035

    Kev Ntsuas Hydrostatic

    Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau kuaj los ntawm tus neeg tsim khoom kom muaj lub zog hydrostatic uas yuav tsim cov kev ntxhov siab hauv phab ntsa yeeb nkab tsis pub tsawg dua 60% ntawm qhov tsawg kawg nkaus ntawm qhov kub thiab txias. Lub zog yuav tsum txiav txim siab los ntawm cov qauv hauv qab no:
    P=2St/D

    Kev Hloov Pauv Uas Tso Cai Hauv Qhov Hnyav thiab Qhov Ntev

    Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ntsuas nyias thiab nws qhov hnyav yuav tsum tsis txhob hloov ntau tshaj 10% dhau los yog 5.5% qis dua nws qhov hnyav theoretical, xam siv nws qhov ntev thiab nws qhov hnyav ib chav ntev.
    Lub sab nraud txoj kab uas hla yuav tsum tsis txhob txawv ntau dua ± 1% ntawm lub nominal sab nraud txoj kab uas hla uas tau teev tseg.
    Phab ntsa tuab ntawm txhua qhov chaw yuav tsum tsis pub ntau tshaj 12.5% ​​nyob rau hauv qhov tuab phab ntsa teev tseg.

    Ntev

    Ib qho ntev random: 16 txog 25ft (4.88 txog 7.62m)
    Ob chav random ntev: tshaj 25ft txog 35ft (7.62 txog 10.67m)
    Qhov ntev sib xws: kev hloov pauv uas tso cai ± 1in

    Xaus

    Cov kav dej yuav tsum muaj cov qhov kawg tiaj tus, thiab cov burrs ntawm qhov kawg yuav tsum raug tshem tawm
    Thaum lub yeeb nkab kawg tau teev tseg kom yog bevel kawg, lub kaum sab xis yuav tsum yog 30 txog 35 degree

  • Yav dhau los:
  • Tom ntej no:
    • Sau koj cov lus ntawm no thiab xa tuaj rau peb

    Pawg khoom