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    Ibyiza by'imiyoboro y'icyuma ya A252 Grade 3 ikoreshwa mu kubaka imiyoboro y'amazi mabi n'amavuta

    Ibyiza by'imiyoboro y'icyuma ya A252 Grade 3 ikoreshwa mu kubaka imiyoboro y'amazi mabi n'amavuta Ishusho yagaragaye
    • Ibyiza by'imiyoboro y'icyuma ya A252 Grade 3 ikoreshwa mu kubaka imiyoboro y'amazi mabi n'amavuta
    • Ibyiza by'imiyoboro y'icyuma ya A252 Grade 3 ikoreshwa mu kubaka imiyoboro y'amazi mabi n'amavuta

    Ibisobanuro bigufi:

    Umuyoboro w'icyuma wa A252 Grade 3, uzwi kandi ku izina ryaumuyoboro w'uruziga ruri munsi y'uruziga, ni amahitamo akunzwe cyane mu kubaka imiyoboro y'amazi mabi n'amavuta. Iyi miyoboro yagenewe kwihanganira imimerere mibi kandi itanga inyungu nyinshi muri ubu buryo.


    Ibisobanuro birambuye ku gicuruzwa

    Ibirango by'ibicuruzwa

    Imwe mu nyungu z'ingenzi zaUmuyoboro w'icyuma wa A252 wo mu cyiciro cya 3 ni imbaraga zayo zidasanzwe kandi ziraramba. Iyi miyoboro ikozwe mu byuma byiza cyane kandi irwanya ingese, kwangirika no gukomereka. Ibi bituma iba nziza cyane mu miyoboro y'amazi aho ishobora guhura n'ibintu byangiza cyangwa ibintu biremereye. Byongeye kandi, imbaraga zayo no kuramba kwayo bituma iba nziza mu kubaka imiyoboro ya peteroli, kuko igomba kwihanganira imbaraga nyinshi n'imihindagurikire y'ikirere.

    Igisanzwe  Ingano y'icyuma Ibinyabutabire (%) Umutungo wo gukurura Charpy(Inota ya V)

    Ikizamini cy'Ingaruka
    c Mn p s Si Ibindi Imbaraga z'umusaruro(Mpa) Imbaraga zo Gufata(Mpa) （L0=5.65 √ S0）Ingano y'iminota yo guhagarara (%)
    umubare ntarengwa umubare ntarengwa umubare ntarengwa umubare ntarengwa umubare ntarengwa umunota umubare ntarengwa umunota umubare ntarengwa D ≤ 168.33mm D ＞ 168.3mm
      

     

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35   

    Kongeramo NbVTi hakurikijwe GB/T1591-94

    		 215   335   15 > 31  
    Q215B ≤ 0.15 0.25-0.55 0.045 0.045 0.035 215 335 15 > 31
    Q235A ≤ 0.22 0.30 ＜ 0.65 0.045 0.050 0.035 235 375 15 >26
    Q235B ≤ 0.20 0.30 ≤ 1.80 0.045 0.045 0.035 235 375 15 >26
    Q295A 0.16 0.80-1.50 0.045 0.045 0.55 295 390 13 >23
    Q295B 0.16 0.80-1.50 0.045 0.040 0.55 295 390 13 >23
    Q345A 0.20 1.00-1.60 0.045 0.045 0.55 345 510 13 >21
    Q345B 0.20 1.00-1.60 0.045 0.040 0.55 345 510 13 >21
      

     

     

    GB/

    T9711-

    2011

    (PSL1)

    		 L175 0.21 0.60 0.030 0.030     

     

    Urashobora kongeramo kimwe mu bintu bya NbVTi cyangwa ikindi kintu icyo ari cyo cyose uruvange rwabyo

    		 175   310   27  Kimwe cyangwa bibiri by'ibipimo by'ubukomere

    Ingufu z'ingaruka n'ahantu ho gukata bishobora guhitamo.

    L555, reba ibisanzwe.
    L210 0.22 0.90 0.030 0.030 210 335 25
    L245 0.26 1.20 0.030 0.030 245 415 21
    L290 0.26 1.30 0.030 0.030 290 415 21
    L320 0.26 1.40 0.030 0.030 320 435 20
    L360 0.26 1.40 0.030 0.030 360 460 19
    L390 0.26 1.40 0.030 0.030 390 390 18
    L415 0.26 1.40 0.030 0.030 415 520 17
    L450 0.26 1.45 0.030 0.030 450 535 17
    L485 0.26 1.65 0.030 0.030 485 570 16
      

     

     

    API 5L (PSL 1)

    		 A25 0.21 0.60 0.030 0.030    Ku byuma byo mu rwego rwa B,

    Nb+V ≤ 0.03%;

    ku byuma ≥ urwego rwa B, kongeramo Nb cyangwa V cyangwa ibyabo nta bushake

    guhuza, na Nb+V+Ti ≤ 0.15%

    		 172   310    （L0=50.8mm）kuba

    byabazwe hakurikijwe formula ikurikira:

    e=1944·A0 .2/U0 .0

    A: Ubuso bw'icyitegererezo muri mm2 U: Imbaraga nkeya zagenwe zo gukurura muri Mpa

    		  Nta na kimwe cyangwa ikindi

    cyangwa byombi

    ingaruka

    ingufu na

    gukata amatungo

    agace gakenewe nk'igipimo cy'ubukomere.
    A 0.22 0.90 0.030 0.030   207 331
    B 0.26 1.20 0.030 0.030   241 414
    X42 0.26 1.30 0.030 0.030   290 414
    X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    X56 0.26 1.40 0.030 0.030   386 490
    X60 0.26 1.40 0.030 0.030   414 517
    X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

    Indi nyungu y'umuyoboro w'icyuma wa A252 Grade 3 ni uburyo ukoreshwa mu buryo butandukanye. Iyi miyoboro iboneka mu bunini butandukanye n'ubugari butandukanye, bigatuma ikoreshwa mu buryo butandukanye. Waba urimo kubaka umuyoboro mutoumuyoboro w'amazi y'umuyoborocyangwa umuyoboro munini w'amavuta, umuyoboro w'icyuma wa A252 Grade 3 ushobora guhindurwa byoroshye kugira ngo uhuze n'ibisabwa by'umushinga. Byongeye kandi, iyi miyoboro ishobora gukorwamoimiyoboro y'imiterere ifite ibice bidafite aho biboshye, barushaho kwagura ikoreshwa ryabyo mu mishinga y'ubwubatsi.

    Uretse gukomera no kuba ifite ubushobozi bwo gukora ibintu bitandukanye, umuyoboro w'icyuma wa A252 Grade 3 uzwiho no kugabanya ikiguzi. Iyi miyoboro yoroshye kuyishyiraho kandi isaba gusanwa gake, bigabanya ikiguzi cy'umushinga muri rusange. Byongeye kandi, igihe kirekire ikora kandi irwanya ingese bituma itanga inyungu ikomeye ku ishoramari ryakozwe mu miyoboro y'amazi mabi n'imiyoboro y'amazi mabi.umuyoboro w'amavuta umurongoimishinga y'ubwubatsi.

    Umuyoboro wa SSAW

    Indi nyungu ikomeye y'umuyoboro w'icyuma wa A252 Grade 3 ni uko uhura n'uburyo butandukanye bwo kubaka. Iyi miyoboro ishobora gushyirwaho hakoreshejwe uburyo gakondo bwo gucukura cyangwa tekiniki zidafite imiyoboro nko gucukura mu cyerekezo kitambitse, gucukura imiyoboro cyangwa gucukura imiyoboro mito. Ubu buryo bworoshye butuma ishyirwa mu bikorwa neza kandi bihendutse mu bidukikije bitandukanye bigoye, harimo n'imijyi, inzira z'amazi n'uturere twitaweho n'ibidukikije.

    Muri rusange, umuyoboro w'icyuma wa A252 Grade 3 utanga ibyiza bitandukanye mu kubaka imiyoboro y'amazi mabi n'ibikomoka kuri peteroli. Ingufu zawo, kuramba kwazo, imikorere yazo myiza no kugabanya ikiguzi bituma ziba nziza muri izi gahunda zisaba akazi kenshi. Yaba ikoreshwa mu kubaka imiyoboro y'amazi mabi cyangwa imiyoboro y'amavuta, iyi miyoboro itanga imikorere yizewe kandi ifite agaciro karambye. Kubera iyo mpamvu, ikomeza kuba igisubizo cy'amahitamo ku bahanga n'abakora imirimo bashaka ibisubizo birambye kandi byizewe byo gukora imiyoboro.

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