Paipu irin ti a fi weld, ti a tun mọ si paipu welded, jẹ paipu irin ti a ṣe ti awo irin tabi irin rinhoho lẹhin crimping ati alurinmorin, ni gbogbo awọn mita 6.Ilana iṣelọpọ paipu irin ti a fi weld jẹ rọrun, ṣiṣe iṣelọpọ giga, awọn pato oriṣiriṣi, idoko-owo ohun elo ti o kere ju, ṣugbọn agbara gbogbogbo jẹ kekere ju paipu irin alailẹgbẹ.
Kekere iwọn ila opin welded pipe adopts ni gígùn pelu alurinmorin, ti o tobi iwọn ila opin welded paipu adopts ajija alurinmorin.Ni ibamu si awọn apẹrẹ ti opin irin paipu, o ti wa ni pin si ipin welded paipu ati pataki-sókè (square, onigun, bbl) welded pipe;Gẹgẹbi awọn ohun elo ati awọn lilo ti o yatọ, o pin si awọn oniho irin alurinmorin fun gbigbe gbigbe omi iwakusa, awọn ọpa oniho irin welded fun gbigbe omi titẹ kekere, ati awọn paipu irin ti o ni itanna fun awọn rollers conveyor igbanu.Gẹgẹbi sipesifikesonu ati tabili iwọn ni boṣewa orilẹ-ede lọwọlọwọ, iwọn ila opin ita * sisanra ogiri jẹ lẹsẹsẹ lati kekere si nla.