Tuubbada kululeeyaha ayaa u furan labada daraf oo waxay leedahay qayb godan, dhererka iyo hareeraha birta weyn, sida laga soo xigtay hababka wax soo saarka waxaa loo qaybin karaa birta birta ah ee birta ah iyo birta birta ah ee welded, qeexida tuubada birta ee cabbirka guud (sida dhexroorka ama dhererka) iyo dhumucda derbiga, ayaa sheegay in cabbirkiisu aad u ballaaran yahay, laga bilaabo xididka dhexroorka yar ilaa dhowr mitir dhexroorka, tuubada dhexroorka weyn.

Tuubooyinka birta ah waxaa loo isticmaali karaa tuubooyinka, qalabka kulaylka, warshadaha mishiinada, batroolka sahaminta juqraafiyeed, weelasha, warshadaha kiimikada iyo ujeedooyin gaar ah.

(1) Bir qaab dhismeedka kaarboon tayo sare leh 20G, 20MnG, 25MnG.

(2) Qaab dhismeedka Alloy steel 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, iwm.

Tuubada kululeeyaha waxa loo qaybiyaa laba qaybood:GB/T3087-2018tuubada kululeeyaha cadaadiska hoose iyo dhexe,GB/T5310-2018tuubada kululeeyaha cadaadiska sare. Alaabtayada ugu muhiimsan waxaa ka mid ah:

ASTMA210(A10M)-2012Kuleyliyaha birta kaarboon dhexdhexaad ah iyo kuleyliyaha superheater birta birta aan xuduud lahayn, walxaha ugu muhiimsan waa SA210 GRA1, SA210GrC;

ASME SA106/SA-106M-2015, qalabka ugu muhiimsan waa GR.B gr.C;

ASME/SA SA – 213-213 – m, walxaha daawaha caadiga ah: T11, T12, T22 iyo T23, T91, P92, T5, T5b, T9, T21, T22, T17;

ASTM A335 / A335M - 2018Qalabka ugu muhiimsan waa: P11, P12, P22, P5, P9, P23, P91, P92, P2, iwm.