Toe fa'atumuina o le poloaiga fa'ainisinia, paipa u'amea u'amea oloaA333 GR6, o le faʻamatalaga e 168.3*7.11, mapaipa u'amea kaponi GB/T9948, 20#, o le fa'amatalaga e 114.3*6.02, ma isi.

O mea nei e faʻalauiloa atu ai tulaga faʻatonuina ma meafaitino o le a fetaiaʻi ma poloaiga faʻainisinia:

20# GB8163 paipa u'amea e leai ni fa'alavelave i felauaiga o le vai

O le ā le uiga o le mea e fai ai paipa u'amea e leai ni so'oga? O le mea fo'i lea o le vasega tatou te masani ona ta'ua, e pei o le 20#, 45#, o lo'o fa'atusalia ai lona fausaga fa'akemikolo ma meatotino fa'ainisinia e pei o le malosi o le tensile, le malosi o le gaua'i, ma le saoasaoa o le fa'alauteleina. O mea nei e masani ona fa'aaogaina mo paipa u'amea e leai ni so'oga, tulaga fa'atonuina o gaosiga ma fa'aoga na aoteleina e le tusitala.

1.GB/T8162-2018, Paipa u'amea e leai ni so'oga fausaga, e fa'aaogaina tele i inisinia fausaga lautele, fa'agasologa fa'ainisinia, fausiaina ma isi matā'upu. Mea fa'atusa: 20#, 45#, q345b, 40Cr, 42CrMo, ma isi;

2. GB/T8163-2018, paipa u'amea e leai ni so'oga mo le felauaiga o le vai, e masani ona fa'aaogaina mo le inisinia o paipa ma le mamafa maualalo. Mea fa'atusa: 20#, q345b;
Paipa u'amea e leai ni fa'alavelave fa'atulagaina 45# GB8162

3.GB/T3087-2017, paipa u'amea e leai ni paipa e fa'aaogaina mo paipa u'amea e fa'avevela ma feololo le mamafa, e masani ona fa'aaogaina e gaosia ai le tele o fausaga o paipa ausa vevela tele, paipa vai pupuna mo paipa u'amea e maualalo ma feololo le mamafa, ma paipa ausa vevela tele ma paipa piliki fa'a'au mo paipa u'amea. Mea fa'atusa: 10#, 20#, Q355B;
Paipa paila mamafa maualuga GB5310, meafaitino 12Cr1MovG

4. GB/T5310-2017, paipa u'amea e leai ni so'oga mo paila e maualuga le mamafa, e masani ona fa'aaogaina mo le fa'avevela o luga o paila paipa vai e maualuga le mamafa ma luga atu. E iai u'amea kaponi, u'amea u'amea ma u'amea e leai ni so'oga e tete'e i le vevela. Mea fa'atusa: 20G, 15CrMoG, 12Cr1MoVG, ma isi;

5. GB/T6479-2018, paipa u'amea e leai se fa'alavelave maualuga mo masini fa'apalaga vaila'au, e masani ona fa'aaogaina mo masini vaila'au ma paipa e iai le vevela galue o le -40 ~ 400 °C ma le mamafa galue o le 10 ~ 30 Ma. E iai paipa u'amea e leai se fa'alavelave e fai i le kaponi ma paipa u'amea 'apamemea. Mea fa'atusa: q345a-bcde, 20 #, 10mowvnb, 15CrMo;

6. GB/T9948-2013, paipa u'amea e leai ni so'oga mo le fa'aleagaina o le penisini, e masani ona fa'aaogaina mo paipa ogaumu, mea e fesuia'i ai le vevela ma paipa i totonu o fale gaosi penisini. Mea fa'atusa: 10#, 20#, Q345, 15CrMo;