Igwe ọkụ ọkụ na-emeghe na nsọtụ abụọ ahụ ma nwee akụkụ oghere, ogologo na gburugburu nke nnukwu ígwè, dị ka usoro mmepụta nwere ike kewaa n'ime igwe anaghị agba nchara na ọkpọkọ welded, nkọwapụta ọkpọkọ ígwè na n'ozuzu akụkụ (dị ka dayameta ma ọ bụ ogologo) na mgbidi mgbidi, kwuru na nha ya dị oke obosara, site na obere dayameta capillary ruo ọtụtụ mita na dayameta, nnukwu ọkpọkọ ọkpọkọ.

Enwere ike iji tubes ígwè maka ọkpọkọ, akụrụngwa ọkụ, ụlọ ọrụ igwe, nchọpụta ala ala mmanụ ala, arịa, ụlọ ọrụ kemịkalụ na ebumnuche pụrụ iche.

(1) Carbon structural ígwè dị elu dị elu 20G, 20MnG, 25MnG.

(2) Alloy Ọdịdị ígwè 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, wdg

A na-ekewa tuber tube n'ime ụzọ abụọ:GB/T3087-2018tube ji esi mmiri ọkụ n'etiti na obere nrụgide,GB/T5310-2018nnukwu nsogbu ji esi mmiri ọkụ tube. Isi ngwaahịa anyị gụnyere:

ASTMA210 (A10M) -2012Ọkara carbon steel ji esi mmiri ọkụ na superheater enweghị nkebi ígwè ọkpọkọ, isi ihe bụ SA210 GrA1, SA210GrC;

ASME SA106/SA-106M-2015, ihe ndị bụ isi bụ GR.B gr.C;

ASME/SA SA – 213-213 – m, nkịtị alloy ihe: T11, T12, T22 na T23, T91, P92, T5, T5b, T9, T21, T22, T17;

ASTM A335 / A335M - 2018, ihe ndị bụ isi bụ: P11, P12, P22, P5, P9, P23, P91, P92, P2, wdg.