A na-eji ingots ma ọ bụ billet siri ike eme tubes nke dị ala na nke ọkara nke a na-akpụ akpụ iji mepụta tube burr, wee kpochie ọkụ, akpọrepu oyi ma ọ bụ oyi.Ọkpụkpụ nchara na-enweghị ntụpọ nwere ọnọdụ dị mkpa na ụlọ ọrụ ọkpọ ígwè nke China.Dị ka ezughị ezu ọnụ ọgụgụ, China ẹdude enweghị nkebi anwụrụ mmepụta ụlọ ọrụ banyere 240 karịa, enweghị nkebi ígwè anwụrụ unit banyere 250 tent, kwa afọ mmepụta ikike nke ihe karịrị 4.5 nde tọn.Site n'echiche caliber, <φ76, na-aza 35%, <φ159-650, na-aza 25%.N'ihe banyere ụdị dị iche iche, 1.9 nde tọn nke tubes ebumnuche izugbe, na-aza 54%;760,000 tọn mmanụ ụgbọala, na-aza 5.7%;150,000 tọn nke ogidi hydraulic, tubes ziri ezi, na-aza 4.3%;igwe anaghị agba nchara, ọkpọkọ na-ebu, akpa akpaaka ngụkọta nke tọn 50,000, na-aza 1.4%.
Obere na ọkara mgbali mmiri ọkụ tube n'ibu Njirimara: tensile ike σb (MPa): ≥ 410 (42) ike σs (MPa): ≥ 245 (25) elongation δ5 (%): ≥ 25 ngalaba shrinkage ψ (%): ≥ 5 , hardness: bụghị okpomọkụ ọgwụgwọ, ≤ 156HB, sample size: sample size 25mm okpomọkụ ọgwụgwọ nkọwa na metallographic nzukọ: okpomọkụ ọgwụgwọ nkọwa: normalized, 910 ℃, Ikuku jụrụ.Òtù Metallographic: ferrite + pearlite.
Ọkara na obere nrụgide tube ogbugbu tube ogbugbu: GB3087-1999 enweghị nkebi ígwè tube maka obere na ọkara mgbali mmiri ọkụ.
Ọkara na obere nrụgide tubes na-ekpo ọkụ na-ekpo ọkụ na oyi na-adọrọ (akpọre) tubes enweghị nkebi nke elu carbon structural ígwè eji eme ka uzuoku uzuoku tubes, akpọrepu mmiri tubes na superheated uzuoku tubes maka locomotive boilers, nnukwu anwụrụ ọkụ tubes, obere anwụrụ anwụrụ ọkụ na arch tubes brik maka ihe owuwu dị iche iche nke ndị na-ekpo ọkụ dị ala na nke ọkara.A na-eji ya eme ihe maka igwe ọkụ ụlọ ọrụ na igwe ọkụ dị ndụ na-ebufe ọkpọkọ mmiri dị ala na nke ọkara.Ihe nnọchiteanya bụ 10 na 20 nlele ígwè.
