GB5310ʻo ia ke code maʻamau o ke kūlana aupuni o Kina "Seamless Steel Pipes forʻO nā paila kīʻaha kiʻekiʻe", e kuhikuhi ana i nā koi ʻenehana no nā paipu kila maʻemaʻe ʻole no nā paila kiʻekiʻe a me nā paipu mahu. ʻO ke kūlana GB5310 e uhi i nā ʻano kila like ʻole e hoʻokō i nā pono noi like ʻole.

20G: ʻO 20G kekahi o nā māka i hoʻohana nui ʻia ma GB5310, me nā mea nui o ke kalapona, manganese a me ke silika. Loaʻa iā ia nā waiwai mechanical piha maikaʻi a me nā waiwai welding, a hoʻohana nui ʻia e hana i nā ʻāpana koʻikoʻi e like me nā paia wai-cooled, superheaters, economizers a me nā pahu i loko o nā pahu pahu mana.

15CrMoG: Loaʻa i kēia kila ka chromium a me ka molybdenum, a he kiʻekiʻe kiʻekiʻe ka ikaika o ka wela a me ke kūpaʻa oxidation. Hoʻohana pinepine ʻia nā paipu kila maʻemaʻe ʻole 15CrMoG e hana i nā paipu mahu kiʻekiʻe a me ke kaomi kiʻekiʻe, nā poʻo a me nā conduits, etc., a hoʻohana nui ʻia i nā ʻoihana petrochemical a me nā mana.

12Cr1MoVG: Loaʻa nā mea chromium kiʻekiʻe, molybdenum a me vanadium, me ka maikaʻi o ka hana wela kiʻekiʻe a me ke kūpaʻa lōʻihi. Hoʻohana pinepine ʻia nā paipu kila maʻemaʻe ʻole o kēia papa i nā paila wela a me ke kiʻekiʻe-pressure a me nā lako mana nuklea, ʻoi aku ka nui o nā mea hoʻololi wela, nā paipu mahu, etc.

Hoʻohana nui ʻia kēia mau pae like ʻole o nā paipu kila maʻemaʻe i ka hana ʻana i nā ʻāpana koʻikoʻi i loko o nā ʻenekini kiʻekiʻe a me ke kaomi kiʻekiʻe e like me ka mana, petrochemical, a me ka mana nuklea ma muli o ko lākou ʻano kemika kūikawā a me nā waiwai mechanical. Ma ke kohoʻana i ke kila kila kūpono, hiki ke hōʻoia i ka palekana a me ka paʻa o nā mea hana ma lalo o nā kūlana hana koʻikoʻi, a hiki ke hoʻonuiʻia ke ola o ka lawelawe.