Imibhobho yentsimbi engenamthungo ithatha indawo ebalulekileyo kwishishini lanamhlanje kwaye isetyenziswa ngokubanzi kulwakhiwo, ukwenziwa koomatshini, i-petrochemical kunye nezinye iindawo.EN 10210ichaza ngokuthe ngqo imibhobho yentsimbi engenamthungo yezakhiwo, phakathi kwayo i-BS EN 10210-1 ingcaciso ethile yentsimbi eshushu eqengqelekayo engeyiyo i-alloy kunye ne-fine-grained structural steels. Amabanga aqhelekileyo kulo mgangatho aquka i-S235GRH, i-S275JOH, i-S275J2H, i-S355JOH kunye ne-S355J2H.

Okokuqala, i-S235GRH yintsimbi yenqanaba elisisiseko, isetyenziselwa ikakhulu kwiindawo zesakhiwo phantsi koxinzelelo oluphantsi kunye nendawo yokushisa kwegumbi. Ngamandla esivuno angama-235MPa, inokuqina kakuhle kunye nokubumba okubandayo, kwaye ilungele ukwakhiwa ngokubanzi kunye nezakhiwo zoomatshini.

Okulandelayo yi-S275JOH kunye ne-S275J2H. I-S275JOH inokuqina okuhle kwi-20℃ kunye namandla esivuno angama-275MPa, kwaye iqhele ukusetyenziselwa izakhiwo kunye neeprojekthi zebhulorho ezinomthwalo ophakathi. I-S275J2H inobunzima obungcono bempembelelo kwi -20 ℃, kwaye ifanelekile kwiindawo zesakhiwo ezifuna ukhuseleko oluphezulu.

S355JOHkwayeS355J2Hziintsimbi zokuqina okuphezulu. I-S355JOH inokuqina okugqwesileyo kubushushu begumbi kunye nobushushu obuphantsi (-20 ℃), inamandla esivuno se-355MPa, kwaye isetyenziswa ngokubanzi kuxinzelelo oluphezulu kunye neeprojekthi ezibalulekileyo zesakhiwo, ezifana nezakhiwo eziphakamileyo kunye neebhulorho ezinkulu. I-S355J2H inokuqina kwempembelelo ephezulu kwi-20℃, kwaye ifanele iindawo ezibanda kakhulu okanye iiprojekthi ezifuna uqinisekiso olongezelelweyo lokhuseleko.

Umgangatho we-EN 10210 awuchazi ngokucacileyo kuphela ukwakheka kweekhemikhali kunye neempawu zoomatshini kwimibhobho yentsimbi, kodwa ukwabeka phambili iimfuno ezithile zokunyamezelana komgangatho, umgangatho womphezulu, uvavanyo olungonakalisi, njl. njl. Oku kuqinisekisa ukungaguquguquki kunye nokuthembeka kwemibhobho yentsimbi ngexesha lokwenziwa kunye sebenzisa.

Imibhobho yentsimbi engenamthungo yenziwa yitekhnoloji eshushu yokuqengqeleka, ebanika iipropathi ezigqwesileyo zoomatshini kunye nokuchaneka okuhle komgangatho. Inkqubo yokushisa eshushu inokuphelisa uxinzelelo ngaphakathi kombhobho wensimbi, iphucule isakhiwo sombutho wentsimbi, kunye nokwandisa ukusebenza kwayo okubanzi. Xa kuthelekiswa nemibhobho yentsimbi edityanisiweyo, imibhobho yentsimbi engenamthungo inemibhobho ephezulu yokucinezela, ukugoba kunye namandla okugoba, kwaye ifanelekile kwinkxaso yesakhiwo kunye nokuthuthwa kwamanzi phantsi kweemeko ezahlukeneyo zokusebenza ezinzima.

Ngokubanzi, imibhobho yentsimbi engenamthungo eveliswe ngokwemigangatho ye-EN 10210 ibonisa ukusebenza okugqwesileyo kulwakhiwo nakumashishini. Iipayipi zensimbi zamabakala afana ne-S235GRH, S275JOH, S275J2H, S355JOH, kunye ne-S355J2H zineempawu zazo kwaye zinokuhlangabezana neemfuno zeeprojekthi ezahlukeneyo. Ukusetyenziswa kwabo okubanzi akuphuculi nje kuphela umgangatho kunye nokhuseleko lweeprojekthi, kodwa nokukhuthaza uphuhliso kunye nokuveliswa kweteknoloji yezinto zetsimbi. Ukukhetha imibhobho yentsimbi engenamthungo yamabakala afanelekileyo kunye neenkcukacha kubalulekile ekuqinisekiseni uzinzo lwexesha elide kunye neenzuzo zoqoqosho lweeprojekthi.