Ukwelashwa kokuqala kwamapayipi ensimbi omthungo oqondile: ukuhlolwa okungabhubhisi ngaphakathi kwama-welds. Njengoba ipayipi liyipayipi lensimbi elikhulu kakhulu kuphrojekthi yokuhlinzeka ngamanzi, ikakhulukazi ipayipi yensimbi enogqinsi lwe-t = 30mm isetshenziswa njengebhuloho lamapayipi. Kumele imelane kokubili ukucindezela kwamanzi kwangaphakathi kanye nomzuzu wokugoba owenziwe yi-deadweight yepayipi lensimbi nomzimba wamanzi, ngakho-ke izidingo zokushisela ziphezulu kakhulu. Emapayipini ensimbi anobubanzi obukhulu anobukhulu obungu-t=30mm asetshenziswa kumabhuloho amapayipi, ama-longitudinal seams nama-circumferential seams kokubili kungamashisela e-Class I, okudinga u-100% wokuhlolwa kwefilimu ye-X-ray kanye nokuhlolwa kokutholwa kwamagagasi angu-100%; kuyilapho emapayipini ensimbi agqitshiwe anogqinsi luka-t=24mm, ama-longitudinal seams ayingxenye ye-Class I yokushisela, futhi ukuhlolwa kwefilimu ye-X-ray okungama-20% kanye nokuhlolwa kokutholwa kwamagagasi angama-50% kuyenziwa.

Ukusetshenziswa kwamapayipi ashiselwe ngomthungo oqondile: Kunezinhlobo eziningi zamapayipi ashiselwe ngomthungo oqondile, ngokusho kokusetshenziswa: amapayipi ashiselwe ajwayelekile, amapayipi ashiselwe ashaywa umoya-mpilo, amapayipi ashiselwe, amakesi ocingo, amapayipi ama-roller, amapayipi ashiselwe we-metric, amapayipi emoto, ajulile. amapayipi amanzi okumpompa, amapayipi okuguqula izinto, amapayipi kagesi ashiselwe amise okukhethekile, namapayipi kagesi ashiselwe anezindonga ezincane.

Amapayipi ashiselwe ngokujwayelekile: Amapayipi ashiselwe ajwayelekile asetshenziselwa ukuthutha uketshezi olunomfutho ophansi. Yenziwe ngensimbi ye-Q235A, L245, ne-Q235B.
Amapayipi ensimbi: Kuwukumboza ingaphezulu lepayipi elimnyama nge-zinc. Ihlukaniswe yaba kushisa nokubanda. I-zinc layer eshisayo iwugqinsi, futhi intengo ebandayo ishibhile.
Amapayipi ashiselwe aphefumulelwa umoya-mpilo: Ngokuvamile, amapayipi ensimbi ashiselwe anobubanzi obuncane, avame ukusetshenziselwa ukwenza insimbi ukuphephetha umoya-mpilo.
Amapayipi ocingo: Amapayipi ezakhiwo zokusabalalisa, okungamapayipi ensimbi ensimbi ashiselwe kagesi.
Amapayipi kagesi ashiselwe anezindonga ezincane: Amapayipi anobubanzi obuncane asetshenziselwa ifenisha namalambu.
Amapayipi amarola: Amapayipi ensimbi ashiselwe kagesi ku-conveyor yebhande adinga i-ovality.
Amapayipi e-Transformer: Amapayipi ensimbi ye-carbon ajwayelekile. Isetshenziselwa ukukhiqiza amashubhu okupholisa ama-transformer nezinye izishintshi zokushisa.