20 # paipa uʻamea seamless e masani ona faʻaaogaina 20 # maualuga-lelei carbon uamea e pei o mea mata, o se maualuga maualuga carbon vevela-tetee paipa uʻamea seamless masani faʻaaogaina i fausaga fale ma fausaga masini.

20 # uamea ei ai uiga nei: plasticity lelei ma weldability malosi. Ona o le maualalo o le malosi, e talafeagai mo le malulu malulu ma le le maualuga-malosi vaaiga.

20# paipa uamea seamless e mafai ona faaaogaina i alamanuia nei:

1. Mo paipa fau pusa maualalo ma feololo, o le tulaga faʻatinoina oGB 3087, faʻaaogaina e gaosia ai faʻamaʻi vevela ma vai-maalili puipui puipui o alalaupapa ma maualalo le mamafa (galue mamafa ≤5.9 MPa), o loʻo i ai i le maualuga o le vevela (≤480 ℃) + vai vai ausa oxidation siosiomaga mo se taimi umi.

2. Suauu gau gaui paipa, o le faatinoga tulaga masani oGB 9948, fa'aaogaina mo fa'a'ave'ave, fa'a'avevela vevela, ma isi. o vaega fa'amamā suau'u, fa'afeso'ota'i ala fa'asa'o (H₂S, CO₂) ma le mamafa maualuga (e o'o atu i le 15 MPa)

3. High-pressure fertilizer meafaigaluega, o le faʻatinoga faʻatulagaina oGB 6479, faʻaaogaina mo le maualuga o le mamafa (10 ~ 32 MPa) mea faʻapipiʻi e pei o le ammonia synthetic ma le urea, faʻafesoʻotaʻi faʻasalalauga maualuga (e pei o le ammonia vai, urea liusuavai)

O paipa u'amea fa'a'au'au vevela mo lagolago fa'alelei, o le fa'atinoga o le tulagaGB/T17396, faʻaaogaina mo koluma lagolago hydraulic ma jacks i koale, ma faʻasaga i luga o le tele o avega felafolafoaʻi (50 ~ 100 MPa) ma aʻafiaga vibration.