30CrMo u'amea uamea paipa ua maua carbon anotusi o le 0.26 ~ 0.34, anotusi silicon o le 0.17 ~ 0.37, anotusi manganese o le 0.40 ~ 0.70, anotusi molybdenum o le 0.15 ~ 0.25, anotusi chromium o le 0.80 ~ 1.10.
Fa'atonuga fa'atonu mo paipa fa'avela e feololo ma maualalo: GB3087-1999 fa'alava u'amea e leai ni fa'auiga mo fa'afuga fa'aluma maualalo ma feololo.
O le maualuga o le vevela prefabricated tu'u sa'o le fa'alumaina paipa o se ituaiga o le tanumia sa'o prefabricated insulation paipa ma lelei faatinoga insulation, saogalemu ma le faatuatuaina ma tau galuega faatino maualalo.
O paipa u'amea e iai vaega 'ō'ō ma o lona umi e tele atu nai lo le lautele po'o le li'o o le sila. E tusa ai ma foliga o le vaega, ua vaevaeina i paipa uamea lapotopoto, sikuea, rectangular ma faʻapitoa; E tusa ai ma meafaitino, ua vaevaeina i le carbon structural paipa uamea, paʻu uʻamea paʻu uʻamea maualalo, uʻamea uamea paipa ma tuʻufaʻatasia paipa uamea.
Uamea uamea faagaau sikuea o se ituaiga o'o'o umi uamea. Ona o le vaega e faatafafa, ua ta'ua o le paipa sikuea. Ole numera tele o paipa e faʻaaogaina e felauaiga vai, e pei ole suauʻu, kesi masani, vai, kesi, ausa, ma isi.
I le fa'asologa o paipa u'amea, o lo'o i ai se mea e ta'ua o le Q345B paipa u'amea, lea e fa'atatau i le fa'asologa o fa'ameamea maualalo. Faatasi ai ma mea faʻapipiʻi maualalo, o lenei mea e sili ona taatele. Q345B paipa uʻamea seamless sa masani ona taʻua 16Mn paipa uʻamea seamless.
O atunuu autu o loʻo faʻaulufaleina mai o paipa paipa o Iapani ma Siamani. O faʻamatalaga o oloa e masani ona faʻaulufale mai o le 15914.2mm; 2734.0mm; 219.110.0mm; 41975mm; 406.460mm, ma isi. O le faʻamatalaga aupito maualalo o le 31.84.5mm, ma o le umi e masani lava 5 ~ 8m.
O le ute o le vevela maualuga tempering brittleness o le saʻo malamalama tube e masani lava ona manatu o le taunuuga o le tuueseeseina o elemene eleelea e pei o phosphorus, apa, antimony ma arsenic i le uluai tuaoi saito austenite, e mafua ai le embrittlement tuaoi saito.
16Mn o se uʻamea faʻapipiʻi maualuga-maualalo: o le carbon content o le 0.1% - 0.25%, ma faʻapipiʻi elemene elemene autu manganese, silicon, vanadium, niobium ma titanium; O lona aofaʻi atoa o mea faʻapipiʻi e itiiti ifo i le 3%.
(1) High quality carbon structural grade grade e aofia ai le 20g, 20mng ma le 25mng.
(2) Alloy structural grade grade: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, ma isi.
Inner epoxy i fafo polyethylene anticorrosive paipa uamea o se ituaiga fou o paipa palasitika tu'ufa'atasi. O loʻo faʻapipiʻiina i lalo o le paipa uʻamea, epoxy resin ufiufi totonu ma polyethylene faʻapipiʻi fafo.
O paipa u'amea e leai se fa'auiga o se fasi uamea umi ma se vaega 'ō'ō ma leai se so'oga fa'ata'amilo. O le paipa u'amea e leai se mea e maua ai se vaega omo ma e mafai ona fa'aaogaina e fai ma paipa mo le felauaiga o le vai, e pei o le paipa mo le fa'aliliuina o le suau'u, kesi masani, kesi, vai ma nisi mea mautu. Pe a faatusatusa i le uamea malo e pei o le u'amea lapotopoto, o le paipa u'amea lamolemole e tutusa le malosi ma le torsional ma le mamafa mama. O se u'amea vaega tau tamaoaiga.