Phekolo ea pele ea lipeipi tsa tšepe tse otlolohileng: tlhahlobo e sa senyeheng ka har'a li-welds. Kaha phala ke phala ea tšepe e kholo ka ho fetisisa morerong oa phepelo ea metsi, haholo-holo phala ea tšepe e nang le botenya ba t = 30mm e sebelisoa e le borokho ba liphaephe. E tlameha ho mamella khatello ea metsi e ka hare le nako ea ho kobeha e entsoeng ke boima ba phala ea tšepe le 'mele oa metsi, kahoo litlhoko tsa ho tjheseletsa li phahame haholo. Bakeng sa liphaephe tse kholo tsa tšepe tse nang le bophara ba t = 30mm tse sebelisoang ka marokho a liphaephe, li-longitudinal seams le seams circumferential ke li-welds tsa Sehlopha sa I, tse hlokang tlhahlobo ea filimi ea X-ray ea 100% le tlhahlobo ea 100% ea maqhubu a ho lemoha; ha bakeng sa liphaephe tsa tšepe tse patiloeng tse nang le botenya ba t = 24mm, li-longitudinal seams ke tsa Class I welding, 'me tlhahlobo ea filimi ea X-ray ea 20% le tlhahlobo ea 50% ea ho lemoha leqhubu e etsoa.

Tšebeliso ea lipeipi tse otlolohileng tsa seam: Ho na le mefuta e mengata ea liphaephe tse otlolohileng tsa seam, ho latela ts'ebeliso: liphaephe tse cheselitsoeng ka kakaretso, liphaephe tse tšetsoeng ka oksijene, liphaephe tse kolobisitsoeng, liphaephe tsa terata, liphaephe tsa rolara, liphaephe tse cheselitsoeng ka metric, lipeipi tsa koloi, tse tebileng. liphaephe tsa ho pompa seliba, liphaephe tsa transformer, lipeipi tse cheselitsoeng ka motlakase tse nang le sebōpeho se khethehileng, le lipeipi tsa motlakase tse cheselitsoeng ka marako a tšesaane.

Liphaephe tse cheselitsoeng ka kakaretso: Lipeipi tse cheselitsoeng ka kakaretso li sebelisoa ho tsamaisa maro a nang le khatello e tlase. E entsoe ka tšepe ea Q235A, L245, le Q235B.
Lipeipi tsa tšepe tse entsoeng ka galvanized: Ke ho koahela bokaholimo ba phala e ntšo ka zinki. E arotsoe ka ho chesa le ho bata. Lera le chesang la zinki le teteaneng, 'me theko e batang e theko e tlaase.
Liphaephe tse cheselitsoeng ka oksijene: Ka kakaretso, ke lipeipi tsa tšepe tse cheselitsoeng ka bophara bo bonyenyane, tseo hangata li sebelisetsoang ho bululela oksijene ho etsa tšepe.
Liphaephe tsa terata: Ke liphaephe bakeng sa meaho ea kabo, e leng liphaephe tse tloaelehileng tsa tšepe tse cheselitsoeng ka carbon.
Lipeipi tse cheselitsoeng ka motlakase tse nang le mabota a masesaane: Ke lipeipi tsa bophara bo nyane tse sebelisetsoang thepa ea ka tlung le mabone.
Lipeipi tsa rolara: Lipeipi tsa tšepe tse cheselitsoeng ka motlakase tse holim'a lebanta la conveyor li hloka ovality.
Lipeipi tsa Transformer: Ke lipeipi tse tloaelehileng tsa tšepe ea carbon. E sebelisetsoa ho etsa li-tubes tse futhumatsang tsa transformer le lisebelisoa tse ling tsa mocheso.