Insimbi ye-carbon steel, ebizwa nangokuthi i-mild steel, iyiqembu le-alloy esekwe ku-iron ne-carbon njengezici ezihlanganisayo kodwa okuqukethwe kwekhabhoni kungaphansi kuka-0.25%. Ngenxa yamandla ayo aphansi, ubulukhuni obuphansi nokuthambile, ibizwa nangokuthi insimbi emnene. Ihlanganisa izinsimbi eziningi ezijwayelekile ze-carbon structural kanye nezinye izinsimbi zekhwalithi ephezulu ze-carbon structural. Iningi lazo lisetshenziselwa izingxenye zesakhiwo sobunjiniyela ngaphandle kokwelashwa kokushisa, kanti ezinye zisetshenziselwa izingxenye zemishini ezidinga ukumelana nokugqoka ngemuva kokungcwatshwa kwe-carburizing nokunye ukwelashwa kokushisa.
Isakhiwo esihlanganisiwe sensimbi ephansi ye-carbon i-ferrite kanye nenani elincane le-pearlite, amandla ayo nobulukhuni buphansi, futhi ipulasitiki nokuqina kwayo kungcono. Ngakho-ke, ukwakheka kwayo okubandayo kuhle, futhi kungenziwa ngendlela ebandayo ngezindlela ezinjengokugoba, ukugoba, nokunyathela. Le nsimbi nayo inokushisela okuhle. Insimbi enekhabhoni ephansi ngokuvamile isho insimbi enokuqukethwe kwekhabhoni phakathi kuka-0.10 no-0.25%. Lolu hlobo lwensimbi lunobulukhuni obuphansi kanye nepulasitiki enhle. Kulula ukwamukela inqubo ebandayo ye-deformation yepulasitiki, ukushisela nokusika. Kuvame ukusetshenziselwa ukwenza amaketanga, ama-rivets, ama-bolts, ama-shafts, njll.
Isakhiwo esihlanganisiwe sensimbi ephansi ye-carbon i-ferrite kanye nenani elincane le-pearlite, amandla ayo nobulukhuni buphansi, futhi ipulasitiki nokuqina kwayo kungcono. Ngakho-ke, ukwakheka kwayo okubandayo kuhle futhi kungenziwa ngendlela ebandayo ngezindlela ezinjengokugoba, ukugoba, nokunyathela. Le nsimbi inokushisela okuhle. Insimbi enekhabhoni ephansi enokuqukethwe kwekhabhoni ephansi kakhulu inobulukhuni obuphansi kanye nokusebenza kanzima. Ukwelashwa okuvamile kungathuthukisa ukusebenza kwayo.
Insimbi enekhabhoni ephansi ivamise ukugoqelwa ibe yinsimbi ye-engeli, insimbi yesiteshi, i-I-beam, ipayipi lensimbi, umucu wensimbi noma ipuleti lensimbi, elisetshenziselwa ukwenza izingxenye ezihlukahlukene zokwakha, iziqukathi, amabhokisi, izindikimba zomlilo nemishini yezolimo. Insimbi yekhwalithi ephezulu enekhabhoni ephansi igoqwa ibe amapuleti amancane ukuze kwenziwe imikhiqizo edonsa ngokujulile njengamakhebhu ezimoto namahood enjini; iphinde igoqwe ibe imigoqo ukwenza izingxenye zemishini ezinezidingo zamandla aphansi. Insimbi enekhabhoni ephansi ngokuvamile ayiphathwa ngokushisa ngaphambi kokusetshenziswa. Insimbi ye-carburized noma i-cyanidized ene-carbon content engaphezu kuka-0.15% isetshenziselwa ama-shafts, ama-bushings, ama-sprockets nezinye izingxenye ezidinga izinga lokushisa eliphezulu kanye nokumelana okuhle kokugqoka.
Ukusetshenziswa kwensimbi ephansi ye-carbon kuvinjelwe ngenxa yamandla ayo aphansi. Ukwandisa ngokufanelekile okuqukethwe kwe-manganese kunsimbi ye-carbon, kanye nokwengeza amanani amancane ezinto ezihlanganisiwe ezifana ne-vanadium, i-titanium, i-niobium, njll., kungakhuphula kakhulu amandla ensimbi. Uma okuqukethwe kwekhabhoni ensimbi kuncishisiwe kanye nenani elincane le-aluminium, inani elincane le-boron kanye nezakhi zokwakha i-carbide zengezwa, iqembu le-ultra-low carbon bainite lingatholakala elinamandla aphezulu futhi ligcina ipulasitiki engcono kanye nokuqina.
Okuqukethwe kwekhabhoni yensimbi ye-cast low carbon ingaphansi kuka-0.25%, kuyilapho okuqukethwe kwekhabhoni ye-cast medium carbon steel iphakathi kuka-0.25% no-0.60%, kanti okuqukethwe kwekhabhoni ye-cast high carbon steel kuphakathi kuka-0.6% no-3.0%. Amandla nobulukhuni be-cast carbon steel buyanda ngokwanda kokuqukethwe kwekhabhoni.
Insimbi ye-Cast carbon inezinzuzo ezilandelayo: izindleko eziphansi zokukhiqiza, amandla aphezulu, ukuqina okungcono kanye nepulasitiki ephakeme. Insimbi ye-Cast carbon steel ingasetshenziselwa ukwenza izingxenye ezithwala imithwalo esindayo, njengezitendi zensimbi eziginqikayo nezisekelo zokunyathelisa ezisebenza ngogesi emishinini esindayo. Ingase futhi isetshenziselwe ukwenza izingxenye ezingaphansi kwamandla amakhulu nomthelela, njengamasondo, ama-coupler, ama-bolster namafreyimu asemaceleni ezimotweni zikaloliwe.
