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    Ngā Painga o ngā Paipa Rino A252 Tau 3 e Whakamahia ana i roto i te Hanganga Paipa Parakaingaki me te Hinu

    Ngā Painga o ngā Paipa Rino A252 Taumata 3 e Whakamahia ana i roto i te Hanganga Paipa Parakaingaki me te Hinu Āhua Matua
    • Ngā Painga o ngā Paipa Rino A252 Tau 3 e Whakamahia ana i roto i te Hanganga Paipa Parakaingaki me te Hinu
    • Ngā Painga o ngā Paipa Rino A252 Tau 3 e Whakamahia ana i roto i te Hanganga Paipa Parakaingaki me te Hinu

    Whakaahuatanga Poto:

    Paipa maitai A252 Tau 3, e mōhiotia ana kopaipa pewa porowhita e rukuhia ana ki raro, he kōwhiringa rongonui mō te hanga paipa waikeri me te hinu. Kua hangaia ēnei paipa kia tū atu ki ngā āhuatanga tino kino, ā, he maha ngā painga e tukuna ana i roto i ēnei mahi.


    Taipitopito Hua

    Ngā Tohu Hua

    Ko tētahi o ngā painga matua oPaipa maitai A252 Tau 3 Ko tōna kaha me tōna manawanui tino pai. He mea hanga ēnei paipa ki te maitai kounga teitei, ā, he tino ātete ki te waikura, te kakahu me te pānga. Nā tēnei ka pai mō te whakamahi i roto i ngā paipa waikeri ina pāngia pea e ngā matū waikura me ngā kawenga taumaha. Hei tāpiri, nā te kaha me te manawanui ka pai mō te whakamahi i roto i te hanganga paipa hinu, nā te mea me tu atu ki ngā pēhanga teitei me ngā āhuatanga taiao e huri haere ana.

    Paerewa  Te Kaupae Rino Ngā Kaihanga Matū (%) Āhuatanga Kume Charpy（V notch）

    Whakamātautau Pānga
    c Mn p s Si Ētahi atu Te Kaha o te Hua（Mpa） Kaha Kume（Mpa） （L0=5.65 √ S0）Te Tere Totoro meneti （%）
    mōrahi mōrahi mōrahi mōrahi mōrahi meneti mōrahi meneti mōrahi D ≤ 168.33mm D ＞ 168.3mm
      

     

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35   

    Te tāpiri i te NbVTi i runga anō i te 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     

     

    He kōwhiringa te tāpiri i tētahi o ngā huānga NbVTi, i tētahi huinga rānei o aua huānga

    		 175   310   27  Kotahi, e rua rānei o te taupū pakari o

    ka taea te whiriwhiri i te kaha pānga me te rohe kutikuti. Mō

    L555, tirohia te paerewa.
    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    Mō te maitai kounga B,

    Nb+V ≤ 0.03%;

    mō te maitai ≥ karaehe B, me tāpiri atu he Nb, he V rānei, he mea whiriwhiri rānei

    te huinga, me te Nb+V+Ti ≤ 0.15%

    		 172   310    （L0=50.8mm）kia

    i tatauhia kia rite ki te tātai e whai ake nei:

    e=1944·A0 .2/U0 .0

    A: Te horahanga o te tauira i roto i te mm2 U: Te kaha kume iti rawa kua tohua i roto i te Mpa

    		  Kāore, kāore rānei

    rānei o ngā mea e rua

    te pānga

    pūngao me te

    te kutikuti

    e hiahiatia ana te horahanga hei paearu pakari.
    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

    Ko tētahi atu painga o te paipa maitai A252 Grade 3 ko tōna maha o ngā whakamahinga. He maha ngā rahi me ngā matotoru o ēnei paipa, ā, he pai mō ngā momo mahi. Ahakoa te hanga i tētahi whare itite raina waikerihe paipa hinu nui rānei, ka taea te whakarite ngāwari i te paipa maitai A252 Grade 3 kia tutuki ai ngā whakaritenga kaupapa motuhake. Hei tāpiri, ka taea te hanga i ēnei paipa heingā paipa hanganga wāhanga-poka, me te whakawhānui ake i tō rātou whakamahinga i roto i ngā kaupapa hangahanga.

    Haunga tōna kaha me tōna whānui, e mōhiotia ana hoki te paipa maitai A252 Grade 3 mō tōna whai huatanga utu. He ngāwari te tāuta i ēnei paipa, ā, he iti noa te tiaki e hiahiatia ana, ka whakaiti i ngā utu kaupapa katoa. Hei tāpiri, nā te roa o te ora mahi me te ātete ki te waikura ka whakaratohia he hokinga kaha ki te haumi mō te waikura me tepaipa hinu rārangingā kaupapa hanga.

    Paipa SSAW

    Ko tētahi atu painga nui o te paipa maitai A252 Grade 3 ko tōna hototahi ki ngā momo tikanga hanga. Ka taea te tāuta i ēnei paipa mā te whakamahi i ngā tikanga keri tuku iho, i ngā tikanga kore-awa rānei pērā i te keri whakapae, te whakatō paipa, te keri iti rānei. Mā tēnei ngāwari ka taea te tāuta pai me te utu iti i roto i ngā taiao wero maha, tae atu ki ngā tāone nui, ngā awa me ngā wāhi tairongo taiao.

    I te nuinga o te wā, he maha ngā painga o te paipa maitai A252 Grade 3 mō te hanga paipa waikeri me te hinu. Nā te kaha, te roa, te whānui o te whakamahinga, me te whai hua o te utu, he mea tino pai mō ēnei tono uaua. Ahakoa e whakamahia ana i roto i te hanga paipa waikeri, hinu rānei, ka whakaratohia e ēnei paipa he mahi pono me te uara mō te wā roa. Nō reira, ko rātou tonu te otinga pai mō ngā miihini me ngā kaimahi kirimana e rapu ana i ngā otinga paipa pakari me te pono.

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