I-ASTM A210 Ibanga C (ASME SA210 Grade C) iyishubhu yensimbi enekhabhoni ephakathi nendawo eklanyelwe ngokukhethekile ukusetshenziswa ekwenzeni amashubhu okubhayela namapayipi okubhayela, okuhlanganisa iziphetho zokuphepha, udonga lwesithando somlilo namashubhu okusekela, namashubhu okushisa aphezulu.
IBanga C linemishini emihle, enamandla okubamba ama-MPa angama-485 namandla esivuno angama-MPa angama-275. Lezi zakhiwo, kanye nokwakheka kwamakhemikhali okufanelekile, kwenza amashubhu e-ASTM A210 Grade C afaneleke kahle ukusetshenziswa emazingeni okushisa aphezulu kanye nasezingeni eliphezulu. izindawo zokucindezela futhi ezikwazi ukumelana nezingcindezi ezikhiqizwa ukusebenza kukabhoyela.
Amashubhu azokwenziwa ngenqubo engenamthungo futhi azoqedwa ngokushisa noma aqedwe ngokubanda.
Ngezansi ishadi eligelezayo lenqubo yokukhiqiza yamapayipi ensimbi angenamthungo aqedwe ngokubanda:
Ngakho-ke uyini umehluko phakathi kwepayipi lensimbi engenamthungo elishisiwe neliqediwe ngokubanda futhi ukhetha kanjani?
Kuqedwe okushisayoipayipi lensimbi engenamthungo ipayipi lensimbi eligoqwayo noma libhobozwe ekushiseni okuphezulu nezinye izinqubo bese lipholiswa ngqo ekamelweni lokushisa.Amapayipi ensimbi kulesi simo ngokuvamile anokuqina okungcono namandla athile, kodwa ikhwalithi engaphezulu ingase ingabi mihle njengamapayipi ensimbi aqedwe ngokubanda ngoba inqubo yokwelapha ukushisa ingase iholele ekukhishweni kwe-oxidation noma ekukhishweni kwe-carburization ebusweni bepayipi lensimbi.
Kubanda-kuqedileipayipi lensimbi elingenamthungo libhekisela ekucutshungulweni kokugcina kwepayipi lensimbi ngokudweba okubandayo, ukugoqa okubandayo, nezinye izinqubo ekamelweni lokushisa.Ipayipi lensimbi eliqedwe ngokubanda linobude obuphakeme bokunemba, kanye nekhwalithi enhle yendawo, futhi ngenxa yokuthi ukucubungula okubandayo kungathuthukisa amandla nobulukhuni bepayipi lensimbi, izakhiwo zemishini yepayipi lensimbi eliqedwe ukubanda ngokuvamile zingcono kunalezo zamapayipi ensimbi aphelile. .Kodwa-ke, inani elithile lokucindezeleka okusalayo lingase likhiqizwe ngaphakathi kwepayipi lensimbi ngesikhathi sokusebenza okubandayo, okudinga ukuqedwa ngokwelashwa kokushisa okulandelayo.
Ipayipi lensimbi eliphelile elishisayo alidingi ukwelashwa kokushisa.
Amashubhu aqedwe ngokubanda kufanele akhishwe, akhishwe ngokuphelele, noma aphathwe ukushisa okuvamile ngemva kwenqubo yokugcina ebandayo.
| Ibanga | IkhabhoniA | IManganese | Phosphorus | Isibabule | I-silicon |
| I-ASTM A210 Ibanga C ASME SA210 Grade C | 0.35% ubuningi | 0.29 - 1.06% | 0.035% ubuningi | 0.035% ubuningi | 0.10% iminithi |
AEkuncishisweni ngakunye ngo-0.01% ngaphansi komkhawulo wekhabhoni oshiwo, ukwenyuka ngo-0.06% we-manganese ngaphezu komkhawulo oshiwo kuzovunyelwa kuze kufike ku-1.35%.
I-Tensile Property
| Ibanga | Amandla aqinile | Amandla okuhoxa | Ukwelula |
| imiz | imiz | ku-2 noma ku-50 mm, imiz | |
| I-ASTM A210 Ibanga C ASME SA210 Grade C | 485 MPa [70 ksi] | 275 MPa [40 ksi] | 30% |
Ukuhlola Ukucaba
Izinyembezi noma ukuphuka kwenzeka ezindaweni zehora le-12 noma 6 ezimpondweni zamashubhu eBanga C anobukhulu obungu-2.375 in. [60.3 mm] ububanzi obungaphandle nobuncane ngeke kubhekwe njengesisekelo sokwenqatshwa.
Izimfuneko ezithile zingabukwa kuI-ASTM A450,iphuzu 19.
Ukuhlolwa kwe-Flaring
Izidingo eziqondile zingabukwa ku-ASTM A450, into 21.
Ukuqina
IBanga C: 89 HRBW (Rockwell) noma 179 HBW (Brinell).
Ipayipi ngalinye lensimbi kufanele lihlolwe ingcindezi ye-hydrostatic noma ukuhlolwa kukagesi okungabhubhisi.
Izidingo zokuhlola ezihlobene nengcindezi ye-Hydrostatic zihambisana ne-ASTM 450, into 24.
Izidingo zokuhlola ezingabhubhisi eziphathelene nogesi zihambisana ne-ASTM 450, into 26.
Ukwakhiwa kwemisebenzi kuyadingeka kumashubhu obhayela ukuze kuqinisekiswe ukuthi amashubhu ahlangabezana nezidingo ezithile zohlelo lokubhayela.
Uma efakwe kubhayela, amashubhu azoma enwebeka futhi enziwe ubuhlalu ngaphandle kokubonisa imifantu noma amaphutha.Uma esetshenziswe kahle, amashubhu okushisa aphezulu azoma wonke akha.ukushisela.kanye nemisebenzi yokugoba edingekayo ukuze kufakwe isicelo ngaphandle kokuthuthukisa iziphambeko.
I-Botop Steel ingumkhiqizi wepayipi lensimbi elishiselwe lekhabhoni elishiselwe kanye nabaphakeli abavela e-China, futhi iyisitokwe samapayipi ensimbi angenamthungo, ekunikeza ipayipi lensimbi lekhwalithi ephezulu, elimisiwe, kanye nenani elincintisanayo.
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