I-P235TR1 iyinto yepayipi yensimbi enokwakheka kwamakhemikhali okuhambisana nezindinganiso ze-EN 10216-1.isitshalo samakhemikhali, imikhumbi, ukwakhiwa kwamapayipi kanye nokwakhiwa kwemishini evamileizinjongo zobunjiniyela bemishini.

Ngokwezinga elijwayelekile, ukwakheka kwamakhemikhali kwe-P235TR1 kufaka phakathi okuqukethwe kwe-carbon (C) okufika ku-0.16%, okuqukethwe kwe-silicon (Si) okufika ku-0.35%, okuqukethwe kwe-manganese (Mn) okuphakathi kuka-0.30-1.20%, okuqukethwe kwe-phosphorus (P) kanye ne-sulfur (S). ) kuphezulu ku-0.025% ngokulandelana. Ngaphezu kwalokho, ngokwezidingo ezijwayelekile, ukwakheka kwe-P235TR1 kungase futhi kube namanani amancane ezinto ezifana ne-chromium (Cr), ithusi (Cu), i-nickel (Ni) kanye ne-niobium (Nb). Ukulawula lezi zinhlobo zamakhemikhali kungaqinisekisa ukuthi amapayipi ensimbi e-P235TR1 anezakhiwo ezifanele zemishini kanye nokumelana nokugqwala, okwenza afaneleke ukusetshenziswa kwezinye izinhlelo zokusebenza ezithile zezimboni.

Ngokombono wokwakheka kwamakhemikhali, okuqukethwe kwe-P235TR1 okuphansi kwekhabhoni kusiza ekuthuthukiseni ukushibilika kwayo kanye nokucutshungulwa kwayo, kanti okuqukethwe kwayo kwe-silicon kanye ne-manganese kusiza ekuthuthukiseni amandla ayo kanye nokumelana nokugqwala. Ngaphezu kwalokho, okuqukethwe kwe-phosphorus kanye ne-sulfur kudinga ukulawulwa emazingeni aphansi ukuqinisekisa ukuhlanzeka kwezinto kanye nokucutshungulwa kwazo. Ukuba khona kwezinto ezilandelanayo njenge-chromium, ithusi, i-nickel kanye ne-niobium kungaba nomthelela ezimpahleni ezithile zamapayipi ensimbi, njengokumelana nokushisa noma ukumelana nokugqwala.

Ngaphezu kokwakheka kwamakhemikhali, inqubo yokukhiqiza, izindlela zokwelapha ukushisa kanye nezinye izinkomba zokusebenza ngokomzimba kwepayipi lensimbi le-P235TR1 nazo ziyizici ezibalulekile ezithinta ukusebenza kwalo kokugcina. Ngokuvamile, ukwakheka kwamakhemikhali kwepayipi lensimbi le-P235TR1 kungenye yezici ezibalulekile zokuqinisekisa ukuthi lihlangabezana nezidingo zezindinganiso ezifanele futhi lingahlangabezana nezinjongo ezithile zobunjiniyela.