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    Tlhaloso ea Khatiso ea 46 ea API 5L bakeng sa Sekhahla sa Phaephe ea Mohala

    Tlhaloso ea Khatiso ea 46 ea API 5L bakeng sa Sekhahla sa Phaephe ea Mohala Setšoantšo se Hlahisitsoeng
    • Tlhaloso ea Khatiso ea 46 ea API 5L bakeng sa Sekhahla sa Phaephe ea Mohala

    Tlhaloso e Khutšoanyane:

    Ho hlalositsoe tlhahiso ea maemo a mabeli a sehlahisoa (PSL1 le PSL2) ea phaephe ea tšepe e se nang sekoli le e tjhitliloeng bakeng sa tšebeliso ea phaephe ho tsamaiseng peterole le khase ea tlhaho. Bakeng sa tšebeliso ea thepa ts'ebelisong ea tšebeletso ea Sour sheba Annex H mme bakeng sa ts'ebeliso ea tšebeletso ea kantle ho naha sheba Annex J ea API5L 45th.


    Qaqiso ea Sehlahisoa

    Li-tag tsa Sehlahisoa

    Boemo ba ho Romela

    PSL Boemo ba ho Romela Sehlopha sa phaephe
    PSL1 Ha e ntse e phuthoa, e tloaelehile, e tloaelehile

    A
    Ha e phuthoa, e phuthoa ka mokhoa o tloaelehileng, e phuthoa ka mokhoa o itekanetseng, e phuthoa ka mokhoa o itekanetseng, e phuthoa ka mokhoa o itekanetseng, e phuthoa ka mokhoa o itekanetseng le e hatelitsoeng kapa haeba ho dumellanoa ka Q&T SMLS feela

    B
    Ha e phuthoa, e phuthoa ka mokhoa o tloaelehileng, e phuthoa ka mokhoa o itekanetseng, e phuthoa ka mokhoa o itekanetseng, e phuthoa ka mokhoa o itekanetseng, e phuthoa ka mokhoa o itekanetseng le e halefisitsoeng X42, X46, X52, X56, X60, X65, X70
    PSL 2 Ha e phutholohile

    BR, X42R
    Ho phutholla, ho etsa hore ho be le maemo a tloaelehileng, ho be le maemo a tloaelehileng kapa ho be le maemo a tloaelehileng le ho halefisoa BN, X42N, X46N, X52N, X56N, X60N
    E timme ebile e bebofalitsoe BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q
    Thermomechanical rolled kapa thermomechanical e entsoe BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M
    Thermomechanical e phutholohile X90M, X100M, X120M
    Ho lekana (R, N, Q kapa M) bakeng sa limaraka tsa PSL2, ke tsa sehlopha sa tšepe

    Tlhahisoleseding ea ho odara

    Odara ea theko e tla kenyelletsa bongata, boemo ba PSL, mofuta kapa Kereiti, referense ea API5L, bophara ba kantle, botenya ba lebota, bolelele le li-annexes tse sebetsang kapa litlhoko tse ling tse amanang le sebopeho sa lik'hemik'hale, thepa ea mechini, kalafo ea mocheso, liteko tse ling, ts'ebetso ea tlhahiso, lipehelo tsa bokaholimo kapa qetello ea qetello.

    Mokhoa o Tloaelehileng oa Tlhahiso

    Mofuta oa Phaephe

    PSL 1

    PSL 2
    Sehlopha sa A Sehlopha sa B X42 ho isa ho X70 B ho isa ho X80 X80 ho isa ho X100
    SMLS

    ü

    ü

    ü

    ü

    ü
    LFW

    ü

    ü

    ü
    HFW

    ü

    ü

    ü

    ü
    LW

    ü
    SAWL

    ü

    ü

    ü

    ü

    ü
    SAWH

    ü

    ü

    ü

    ü

    ü
    SMLS – Ha e na seamless, ha e na weld

    LFW – Phaephe e welletsoeng ka maqhubu a tlase, <70 kHz

    HFW – Phaephe e welletsoeng ka maqhubu a phahameng, >70 kHz

    SAWL - Ho tjheseletsa ka metsing ka ho tjheseletsa ka longitudinal

    SAWH - Ho tjheseletsa ka metsing ka hara arc ho tjheseletsa ka helical

    Boitsebiso ba ho Qala

    Li-ingot, lipalesa, li-billet, li-coil kapa lipoleiti tse sebelisoang bakeng sa ho etsa phaephe li lokela ho etsoa ka mekhoa e latelang, oksijene ea motheo, sebōpi sa motlakase kapa leifo le bulehileng hammoho le mokhoa oa ho hloekisa ladle. Bakeng sa PSL2, tšepe e lokela ho bolaoa le ho qhibilihisoa ho latela mokhoa oa lijo-thollo tse ntle. Khoele kapa poleiti e sebelisetsoang phaephe ea PSL2 ha ea lokela ho ba le li-weld tsa tokiso.

    Sebopeho sa Lik'hemik'hale bakeng sa phaephe ea PSL 1 e nang le t ≤ 0.984″

    Kereiti ea Tšepe

    Karolo e kholo, % e ipapisitse le mocheso le tlhahlobo ea sehlahisoa a, g

    C

    boholo ba b

    Mn

    boholo ba b

    P

    boholo

    S

    boholo

    V

    boholo

    Nb

    boholo

    Ti

    boholo

    Pipe e se nang seamless

    A

    0.22

    0.90

    0.30

    0.30

    -

    -

    -

    B

    0.28

    1.20

    0.30

    0.30

    c,d

    c,d

    d

    X42

    0.28

    1.30

    0.30

    0.30

    d

    d

    d

    X46

    0.28

    1.40

    0.30

    0.30

    d

    d

    d

    X52

    0.28

    1.40

    0.30

    0.30

    d

    d

    d

    X56

    0.28

    1.40

    0.30

    0.30

    d

    d

    d

    X60

    0.28 e

    1.40 e

    0.30

    0.30

    f

    f

    f

    X65

    0.28 e

    1.40 e

    0.30

    0.30

    f

    f

    f

    X70

    0.28 e

    1.40 e

    0.30

    0.30

    f

    f

    f

    Pipe e nang le Welded

    A

    0.22

    0.90

    0.30

    0.30

    -

    -

    -

    B

    0.26

    1.2

    0.30

    0.30

    c,d

    c,d

    d

    X42

    0.26

    1.3

    0.30

    0.30

    d

    d

    d

    X46

    0.26

    1.4

    0.30

    0.30

    d

    d

    d

    X52

    0.26

    1.4

    0.30

    0.30

    d

    d

    d

    X56

    0.26

    1.4

    0.30

    0.30

    d

    d

    d

    X60

    0.26 e

    1.40 e

    0.30

    0.30

    f

    f

    f

    X65

    0.26 e

    1.45 e

    0.30

    0.30

    f

    f

    f

    X70

    0.26e

    1.65 e

    0.30

    0.30

    f

    f

    f
    1. Cu ≤ = 0,50% Ni; ≤ 0,50%; Cr ≤ 0,50%; le Mo ≤ 0.15%
    2. Bakeng sa phokotso e 'ngoe le e 'ngoe ea 0.01% ka tlase ho tekanyo e boletsoeng ea carbon, le keketseho ea 0.05% ka holimo ho tekanyo e boletsoeng ea carbon, hoa lumelloa, ho fihlela ho tekanyo e phahameng ea 1.65% bakeng sa limaraka ≥ B, empa ≤ = X52; ho fihlela ho tekanyo e phahameng ea 1.75% bakeng sa limaraka > X52, empa < X70; le ho fihlela ho tekanyo e phahameng ea 2.00% bakeng sa X70.
    3. Ntle le haeba ho dumellanwe ka tsela e nngwe. NB + V ≤ 0.06%
    4. Nb + V + TI ≤ 0.15%
    5. Ntle le haeba ho dumellanwe ka tsela e nngwe.
    6. Ntle le haeba ho dumellanwe ka tsela e nngwe, NB + V = Ti ≤ 0.15%
    7. Ha ho dumellwe ho eketsa B ka boomo mme B e setseng ≤ 0.001%

    Sebopeho sa Lik'hemik'hale bakeng sa phaephe ea PSL 2 e nang le t ≤ 0.984″

    Kereiti ea Tšepe

    Karolo e kholo, % e ipapisitse le tlhahlobo ea mocheso le sehlahisoa

    Tekanyo ea Khabone

    C

    boholo ba b

    Si

    boholo

    Mn

    boholo ba b

    P

    boholo

    S

    boholo

    V

    boholo

    Nb

    boholo

    Ti

    boholo

    Tse ling

    CE IIW

    boholo

    CE Pcm

    boholo

    Pipe e se nang seamless le e nang le welded

    BR

    0.24

    0.40

    1.20

    0.025

    0.015

    c

    c

    0.04

    e,l

    .043

    0.25

    X42R

    0.24

    0.40

    1.20

    0.025

    0.015

    0.06

    0.05

    0.04

    e,l

    .043

    0.25

    BN

    0.24

    0.40

    1.20

    0.025

    0.015

    c

    c

    0.04

    e,l

    .043

    0.25

    X42N

    0.24

    0.40

    1.20

    0.025

    0.015

    0.06

    0.05

    0.04

    e,l

    .043

    0.25

    X46N

    0.24

    0.40

    1.40

    0.025

    0.015

    0.07

    0.05

    0.04

    d,e,l

    .043

    0.25

    X52N

    0.24

    0.45

    1.40

    0.025

    0.015

    0.10

    0.05

    0.04

    d,e,l

    .043

    0.25

    X56N

    0.24

    0.45

    1.40

    0.025

    0.015

    0.10f

    0.05

    0.04

    d,e,l

    .043

    0.25

    X60N

    0.24f

    0.45f

    1.40f

    0.025

    0.015

    0.10f

    0.05f

    0.04f

    g,h,l

    Joalokaha ho lumellanoe

    BQ

    0.18

    0.45

    1.40

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X42Q

    0.18

    0.45

    1.40

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X46Q

    0.18

    0.45

    1.40

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X52Q

    0.18

    0.45

    1.50

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X56Q

    0.18

    0.45f

    1.50

    0.025

    0.015

    0.07

    0.05

    0.04

    e,l

    .043

    0.25

    X60Q

    0.18f

    0.45f

    1.70f

    0.025

    0.015

    g

    g

    g

    h,l

    .043

    0.25

    X65Q

    0.18f

    0.45f

    1.70f

    0.025

    0.015

    g

    g

    g

    h,l

    .043

    0.25

    X70Q

    0.18f

    0.45f

    1.80f

    0.025

    0.015

    g

    g

    g

    h,l

    .043

    0.25

    X80Q

    0.18f

    0.45f

    1.90f

    0.025

    0.015

    g

    g

    g

    ke,j

    Joalokaha ho lumellanoe

    X90Q

    0.16f

    0.45f

    1.90

    0.020

    0.010

    g

    g

    g

    j,k

    Joalokaha ho lumellanoe

    X100Q

    0.16f

    0.45f

    1.90

    0.020

    0.010

    g

    g

    g

    j,k

    Joalokaha ho lumellanoe

    Pipe e nang le Welded

    BM

    0.22

    0.45

    1.20

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X42M

    0.22

    0.45

    1.30

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X46M

    0.22

    0.45

    1.30

    0.025

    0.015

    0.05

    0.05

    0.04

    e,l

    .043

    0.25

    X52M

    0.22

    0.45

    1.40

    0.025

    0.015

    d

    d

    d

    e,l

    .043

    0.25

    X56M

    0.22

    0.45f

    1.40

    0.025

    0.015

    d

    d

    d

    e,l

    .043

    0.25

    X60M

    0.12f

    0.45f

    1.60f

    0.025

    0.015

    g

    g

    g

    h,l

    .043

    0.25

    X65M

    0.12f

    0.45f

    1.60f

    0.025

    0.015

    g

    g

    g

    h,l

    .043

    0.25

    X70M

    0.12f

    0.45f

    1.70f

    0.025

    0.015

    g

    g

    g

    h,l

    .043

    0.25

    X80M

    0.12f

    0.45f

    1.85f

    0.025

    0.015

    g

    g

    g

    ke,j

    .043f

    0.25

    X90M

    0.10

    0.55f

    2.10f

    0.020

    0.010

    g

    g

    g

    ke,j

    -

    0.25

    X100M

    0.10

    0.55f

    2.10f

    0.020

    0.010

    g

    g

    g

    ke,j

    -

    0.25
    1. Meeli ea CE ea SMLS e tla ba joalo ka ha ho lumellanoe. Meeli ea CEIIW e sebelisitsoeng ho C > 0.12% le meeli ea CEPcm e sebetsa haeba C ≤ 0.12%
    2. Bakeng sa phokotso e 'ngoe le e 'ngoe ea 0.01% ka tlase ho tekanyo e boletsoeng ea carbon, le keketseho ea 0.05% ka holimo ho tekanyo e boletsoeng ea carbon, hoa lumelloa, ho fihlela ho tekanyo e phahameng ea 1.65% bakeng sa limaraka ≥ B, empa ≤ = X52; ho fihlela ho tekanyo e phahameng ea 1.75% bakeng sa limaraka > X52, empa < X70; le ho fihlela ho tekanyo e phahameng ea 2.00% bakeng sa X70.
    3. Ntle le haeba ho dumellanwe ka tsela e nngwe Nb = V ≤ 0.06%
    4. Nb = V = Ti ≤ 0.15%
    5. Ntle le haeba ho lumellane ka tsela e 'ngoe, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% le Mo ≤ 0.15%
    6. Ntle le haeba ho dumellanwe ka tsela e nngwe
    7. Ntle le haeba ho dumellanwe ka tsela e nngwe, Nb + V + Ti ≤ 0.15%
    8. Ntle le haeba ho lumellane ka tsela e 'ngoe, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% le MO ≤ 0.50%
    9. Ntle le haeba ho lumellane ka tsela e 'ngoe, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% le MO ≤ 0.50%
    10. B ≤ 0.004%
    11. Ntle le haeba ho lumellane ka tsela e 'ngoe, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% le MO ≤ 0.80%
    12. Bakeng sa dikereiti tsohle tsa PSL 2 tsa phaephe ntle le dikereiti tse nang le dintlha tse boletsweng tlase j, tse latelang di a sebetsa. Ntle le haeba ho dumellanwe ka tsela e nngwe ha ho dumellwe ho eketsa B ka boomo mme B e setseng ≤ 0.001%.

    Ho tsikinyeha le ho ipha matla – PSL1 le PSL2

    Kereiti ea Phaephe

    Matlotlo a ho Tenyetseha – 'Mele oa Phaephe oa SMLS le Liphaephe tse Welded PSL 1

    Seam ea Pipe e Welded

    Matla a Tlhahiso a

    Rt0,5PSI Min

    Matla a ho Tenyetseha a

    Bonyane ba PSI ea Rm

    Ho lelefatsa

    (ka metsotso e 2 ka Af %)

    Matla a ho Tenyetseha b

    Bonyane ba PSI ea Rm

    A

    30,500

    48,600

    c

    48,600

    B

    35,500

    60,200

    c

    60,200

    X42

    42,100

    60,200

    c

    60,200

    X46

    46,400

    63,100

    c

    63,100

    X52

    52,200

    66,700

    c

    66,700

    X56

    56,600

    71,100

    c

    71,100

    X60

    60,200

    75,400

    c

    75,400

    X65

    65,300

    77,500

    c

    77,500

    X70

    70,300

    82,700

    c

    82,700
    a. Bakeng sa sehlopha se mahareng, phapang pakeng tsa matla a bonyane a ho thapolla a boletsoeng le chai e bonyane e boletsoeng bakeng sa 'mele oa phaephe e tla ba joalo ka ha ho fanoe bakeng sa sehlopha se latelang se phahameng.

    b. Bakeng sa mekgahlelo e mahareng, matla a bonyane a ho thaepa a boletsweng bakeng sa seam ya weld a tla tshwana le a hlwailweng bakeng sa mmele o sebedisang ntlha ya leoto a.

    c. Bolelele bo bonyane bo boletsoeng, Af, e hlahisitsoeng ka peresente mme e potiseditswe ho peresente e haufi, e tla lekanyetswa ho sebediswa equation e latelang:

    Moo C e leng 1 940 bakeng sa ho bala ho sebediswa diyuniti tsa Si le 625 000 bakeng sa ho bala ho sebediswa diyuniti tsa USC

    Axcke e sebetsang Sebaka sa karolo e tšekaletseng ea teko ea tensile, se hlahisitsoeng ka limilimithara tse sekwere (lisenthimithara tse sekwere), ka tsela e latelang

    - Bakeng sa dikotwana tsa teko tse chitja, 130mm2 (0.20 in2) bakeng sa likotoana tsa teko tsa bophara ba 12.7 mm (0.500 in) le 8.9 mm (.350 in); le 65 mm2(0.10 in2) bakeng sa likotoana tsa teko tsa bophara ba 6.4 mm (0.250in).

    - Bakeng sa likarolo tsa teko tse feletseng, bonyane ba a) 485 mm2(li-in tse 0.752) le b) sebaka se sekametseng sa karolo ea teko, se nkiloeng ho sebelisoa bophara bo boletsoeng ka ntle le botenya ba lebota bo boletsoeng ba phaephe, se chitja ho fihlela ho 10 mm e haufi.2(0.10in2)

    - Bakeng sa likotoana tsa liteko tsa strip, e ka tlase ho a) 485 mm2(li-in tse 0.752) le b) sebaka se tšekaletseng sa karolo ea teko, se nkiloeng ka ho sebelisa bophara bo boletsoeng ba karolo ea teko le botenya ba lebota bo boletsoeng ba phaephe, bo chitja ho fihlela ho 10 mm e haufi.2(0.10in2)

    U ke matla a bonyane a ho tsikinyeha a boletsoeng, a hlahisitsoeng ka megapascals (liponto ka lisenthimithara tse sekwere)

    Kereiti ea Phaephe

    Matlotlo a ho Tenyetseha – 'Mele oa Phaephe oa SMLS le Liphaephe tse Welded PSL 2

    Seam ea Pipe e Welded

    Matla a Tlhahiso a

    Rt0,5PSI Min

    Matla a ho Tenyetseha a

    Bonyane ba PSI ea Rm

    Karolelano a, c

    R10,5IRm

    Ho lelefatsa

    (ka hare ho lisenthimithara tse 2)

    AF %

    Matla a ho Tenyetseha d

    Rm(psi)

    Bonyane

    Boholo

    Bonyane

    Boholo

    Boholo

    Bonyane

    Bonyane
    BR, BN, BQ, BM

    35,500

    65,300

    60,200

    95,000

    0.93

    f

    60,200
    X42,X42R,X2Q,X42M

    42,100

    71,800

    60,200

    95,000

    0.93

    f

    60,200
    X46N,X46Q,X46M

    46,400

    76,100

    63,100

    95,000

    0.93

    f

    63,100
    X52N,X52Q,X52M

    52,200

    76,900

    66,700

    110,200

    0.93

    f

    66,700
    X56N,X56Q,X56M

    56,600

    79,000

    71,100

    110,200

    0.93

    f

    71,100
    X60N,X60Q,S60M

    60,200

    81,900

    75,400

    110,200

    0.93

    f

    75,400
    X65Q,X65M

    65,300

    87,000

    77,600

    110,200

    0.93

    f

    76,600
    X70Q,X65M

    70,300

    92,100

    82,700

    110,200

    0.93

    f

    82,700
    X80Q,X80M

    80,.500

    102,300

    90,600

    119,700

    0.93

    f

    90,600
    a. Bakeng sa sehlopha se mahareng, sheba tlhaloso e felletseng ea API5L.

    b. bakeng sa dikereiti > X90 sheba tlhaloso e felletseng ya API5L.

    c. Moeli ona o sebetsa bakeng sa liphae tse nang le D> 12.750 in

    d. Bakeng sa mekgahlelo e mahareng, matla a bonyane a ho thapolla a boletsweng bakeng sa seam ya weld e tla ba boleng bo tshwanang le bo ileng ba fihlellwa bakeng sa mmele wa phaephe ho sebediswa leoto a.

    e. bakeng sa phaephe e hlokang teko ya longitudinal, matla a hodimo a tlhahiso e tla ba ≤ 71,800 psi

    f. Bolelele bo bonyane bo boletsoeng, Af, e hlahisitsoeng ka peresente mme e potiseditswe ho peresente e haufi, e tla lekanyetswa ho sebediswa equation e latelang:

    Moo C e leng 1 940 bakeng sa ho bala ho sebediswa diyuniti tsa Si le 625 000 bakeng sa ho bala ho sebediswa diyuniti tsa USC

    Axcke e sebetsang Sebaka sa karolo e tšekaletseng ea teko ea tensile, se hlahisitsoeng ka limilimithara tse sekwere (lisenthimithara tse sekwere), ka tsela e latelang

    - Bakeng sa dikotwana tsa teko tse chitja, 130mm2 (0.20 in2) bakeng sa likotoana tsa teko tsa bophara ba 12.7 mm (0.500 in) le 8.9 mm (.350 in); le 65 mm2(0.10 in2) bakeng sa likotoana tsa teko tsa bophara ba 6.4 mm (0.250in).

    - Bakeng sa likarolo tsa teko tse feletseng, bonyane ba a) 485 mm2(li-in tse 0.752) le b) sebaka se sekametseng sa karolo ea teko, se nkiloeng ho sebelisoa bophara bo boletsoeng ka ntle le botenya ba lebota bo boletsoeng ba phaephe, se chitja ho fihlela ho 10 mm e haufi.2(0.10in2)

    - Bakeng sa likotoana tsa liteko tsa strip, e ka tlase ho a) 485 mm2(li-in tse 0.752) le b) sebaka se tšekaletseng sa karolo ea teko, se nkiloeng ka ho sebelisa bophara bo boletsoeng ba karolo ea teko le botenya ba lebota bo boletsoeng ba phaephe, bo chitja ho fihlela ho 10 mm e haufi.2(0.10in2)

    U ke matla a bonyane a ho thaepa a boletsoeng, a hlahisoang ka megapascals (liponto ka lisenthimithara tse sekwere

    g. Boleng bo tlase ba R10,5IRm e ka hlalosoa ka tumellano

    h. bakeng sa dikereiti > x90 sheba tlhaloso e felletseng ya API5L.

    Teko ea Hydrostatic

    Phaephe e tla mamella teko ea hydrostatic ntle le ho dutla ka har'a moalo oa weld kapa 'mele oa phaephe. ​​Li-jointers ha li hloke ho hlahlojoa ka hydrostatic ha feela likarolo tsa phaephe tse sebelisitsoeng li lekiloe ka katleho.

    Teko ea Kobeha

    Ha ho mapetso a tla hlaha karolong efe kapa efe ea karolo ea teko 'me ho ke ke ha buloa tjheseletso.

    Teko ea ho Batalatsa

    Mekhoa ea kamohelo bakeng sa teko ea ho batalatsa e tla ba
    a)Liphaephe tsa EW D<12.750 in
    -≥ X60 e nang le T≥0.500in, ho ke ke ha e-ba le ho buleha ha weld pele sebaka se pakeng tsa lipoleiti se le ka tlase ho 66% ea bophara ba pele ba kantle. Bakeng sa lihlopha tsohle le lebota, 50%.
    -Bakeng sa phaephe e nang le D/t > 10, ho ke ke ha e-ba le ho buleha ha weld pele sebaka se pakeng tsa lipoleiti se le ka tlase ho 30% ea bophara ba kantle ba pele.
    b) Bakeng sa boholo bo bong, sheba tlhaloso e felletseng ea API5L

    Teko ea tšusumetso ea CVN bakeng sa PSL2

    Boholo le dikereiti tse ngata tsa diphaephe tsa PSL2 di hloka CVN. Phaephe e se nang seamless e lokela ho lekoa mmeleng. Phaephe e welded e lokela ho lekoa mmeleng, ho weld ya phaephe le sebakeng se amehileng ke mocheso (HAZ). Sheba tlhaloso e felletseng ya API5L bakeng sa chate ya boholo le dikereiti le boleng ba matla a monyetsweng bo hlokahalang.

    Mamello Bophara ba Kantle, Bophara ba lebota bo sa teteaneng le botenya ba lebota

    Bophara ba Kantle bo Boletsweng D (ka hare)

    Bophara ba mamello, lisenthimithara d

    Mamello e sa Feleng ho

    Phaephe ntle le pheletso a

    Qetello ea phaephe a,b,c

    Phaephe ntle le Qetello a

    Qetello ea Phaephe a,b,c

    Phaephe ea SMLS

    Pipe e nang le Welded

    Phaephe ea SMLS

    Pipe e nang le Welded

    < 2.375

    -0.031 ho isa ho + 0.016

    - 0.031 ho isa ho + 0.016

    0.048

    0.036

    ≥2.375 ho isa ho 6.625

    +/- 0.0075D

    		 - 0.016 ho isa ho + 0.063

    0.020D bakeng sa

    Ka tumellano bakeng sa

    0.015D bakeng sa

    Ka tumellano bakeng sa

    >6.625 ho isa ho 24.000

    +/- 0.0075D

    +/- 0.0075D, empa palo e kahodimodimo ke 0.125

    +/- 0.005D, empa palo e kahodimodimo ke 0.063

    0.020D

    0.015D

    >24 ho isa ho 56

    +/- 0.01D

    +/- 0.005D empa palo e kahodimodimo ke 0.160

    +/- 0.079

    +/- 0.063

    0.015D bakeng sa empa boholo ba 0.060

    Bakeng sa

    Ka tumellano

    bakeng sa

    0.01D bakeng sa empa ho feta 0.500

    Bakeng sa

    Ka tumellano

    bakeng sa
    >56 Joalokaha ho lumellanoe
    1. Qetello ea phaephe e na le bolelele ba lisenthimithara tse 4 ho isa ho tse 10.
    2. Bakeng sa phaephe ea SMLS, mamello e sebetsa bakeng sa t≤0.984in 'me mamello bakeng sa phaephe e teteaneng e tla ba joalo ka ha ho lumellanoe.
    3. Bakeng sa phaephe e atolositsoeng e nang le D≥8.625in le bakeng sa phaephe e sa atolosoang, mamello ea bophara le mamello e sa potileng li ka fumanoa ka ho sebelisa bophara bo baliloeng ba kahare kapa bophara bo lekantsoeng ba kahare ho fapana le OD e boletsoeng.
    4. Bakeng sa ho fumana hore na ho latela mamello ea bophara, bophara ba phaephe bo hlalosoa e le selikalikoe sa phaephe karolong efe kapa efe ea sefofane se potolohang ke Pi.

    Botenya ba lebota

    lisenthimithara tse t

    Mamello a

    lisenthimithara

    Phaephe ea SMLS b

    ≤ 0.157

    + 0.024 / – 0.020

    > 0.157 ho isa ho < 0.948

    + 0.150t / – 0.125t

    ≥ 0.984

    + 0.146 kapa + 0.1t, ho sa tsotelehe hore na ke efe e kgolo

    - 0.120 kapa – 0.1t, ho sa tsotelehe hore na ke efe e kgolo

    Phaephe e tjheseditsweng c,d

    ≤ 0.197

    +/- 0.020
    > 0.197 ho isa ho < 0.591

    +/- 0.1t

    ≥ 0.591

    +/- 0.060
    1. Haeba taelo ea theko e totobatsa mamello ea ho tlosa bakeng sa botenya ba lebota e nyane ho feta boleng bo sebetsang bo fanoeng tafoleng ena, mamello ea ho eketsa bakeng sa botenya ba lebota e tla eketsoa ka bongata bo lekaneng ho boloka mefuta e loketseng ea mamello.
    2. Bakeng sa phaephe e nang le D≥ 14.000 in le t≥0.984in, mamello ea botenya ba lebota sebakeng sa heno e ka feta mamello ea plus bakeng sa botenya ba lebota ka 0.05t e eketsehileng ha feela mamello ea plus bakeng sa boima e sa fete.
    3. Mamello e ntle bakeng sa ho teteana ha lebota ha e sebetse sebakeng sa ho tjheseletsa
    4. Sheba tlhaloso e felletseng ea API5L bakeng sa lintlha tse felletseng
  • E fetileng:
  • E 'ngoe:
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