"PIPE ALLOY STEEL HTASTM A335 GR P22-SCH 80. ASME B36.10 PLAIN ENDS (QUANTITIES UNIT : M)" wani tsari ne na ƙayyadaddun bayanai na fasaha waɗanda ke bayyana bututun ƙarfe na gami. Bari mu bincika su ɗaya bayan ɗaya:

PIPE ALLOY KARFE HT:
"PIPE" na nufin bututu, kuma "ALLOY KARFE" na nufin gami karfe. Alloy karfe karfe ne wanda ya ƙunshi abubuwa guda ɗaya ko fiye (irin su chromium, molybdenum, tungsten, da dai sauransu) kuma yana da kyawawan kaddarorin kamar babban juriya na zafin jiki, juriya na lalata da ƙarfi.

"HT" yawanci yana nufin buƙatun zafin jiki mai girma, yana nuna cewa wannan karfen bututu ya dace da yanayin yanayin zafi.

ASTM A335 GR P22:
Wannan shine bayanin ma'auni da darajar kayan bututu.

ASTM A335misali ne da Ƙungiyar Gwaje-gwaje da Kayayyakin Amirka (ASTM) ta ƙera don bututun ƙarfe na ƙarfe mara nauyi, musamman don yanayin zafi da matsa lamba.
GR P22 shine takamaiman matakin abu a ƙarƙashin wannan ma'auni, inda "P22" ke nuna nau'in sinadarai da buƙatun aikin bututun. P22 alloy karfe yawanci ya ƙunshi chromium (Cr) da molybdenum (Mo) abubuwa, yana da kyakkyawan ƙarfin zafin jiki da juriya na lalata, kuma ya dace da yanayin yanayin zafi.
SCH 80:
Wannan yana nufin kaurin bangon bututun, kuma "SCH" shine taƙaitaccen "Tsarin".

SCH 80 yana nufin cewa kaurin bangon bututu yana da ɗan kauri kuma yana iya jure matsi mai girma na ciki. Don bututun SCH 80, kaurin bangon sa ya fi girma a tsakanin bututu masu diamita iri ɗaya, wanda zai iya ƙara ƙarfin ƙarfinsa da juriya.
ASME B36.10:
Wannan ma'auni ne wanda Ƙungiyar Ƙwararrun Injiniyoyi ta Amirka (ASME) ta ƙirƙira wanda ke ƙayyade girman, siffar, haƙuri, nauyi da sauran buƙatun bututun ƙarfe. B36.10 musamman ya yi niyya ga diamita na waje, kauri na bango da sauran sigogi na carbon karfe da gami da bututu maras kyau da bututun welded don tabbatar da daidaito da daidaiton samfuran bututun.

KARSHEN LALLE:
"Ƙarshen Ƙarshen" yana nufin bututun da ba ya ƙarewa na inji ko haɗin haɗin gwiwa, yawanci tare da sassauƙan yanke. Idan aka kwatanta da bututu tare da haɗin zaren zare ko filaye, galibi ana amfani da bututun ƙarshen ƙarshen a aikace-aikacen da ake buƙatar haɗin welded.

KYAUTATA RAKA : M:
Wannan yana nuna cewa ma'aunin samfurin shine "mita", wato, ana auna yawan bututu a cikin mita, ba guda ko wasu raka'a ba.

Bututun da aka bayyana a cikin wannan bayanin bututun ƙarfe ne mai zafi mai zafi wanda ya dace da ma'aunin ASTM A335 GR P22, tare da kaurin bango na SCH 80 kuma ya dace da ma'aunin girman ASME B36.10. Ƙarshen bututun suna bayyane (babu zaren ko flanges), ana auna tsayin a cikin mita, kuma ya dace da tsarin bututu a cikin yanayin zafi mai zafi, matsa lamba da lalata.