Basic maki na bakin karfe

Na kowa bakin karfesamfura
Samfuran bakin karfe da aka saba amfani da su da alamomin lamba, akwai jerin 200, jerin 300, jerin 400, su ne wakilan Amurka na Amurka, kamar 201, 202, 302, 303, 304, 316, 410, 420, 430, da sauransu, ana amfani da samfuran bakin karfe na kasar Sin a cikin alamomin kashi da lambobi, kamar 1Cr18Ni9, 0Cr18Ni9, 0Cr17, 3Cr13, 1Cr17Mn6Ni5N, da sauransu, kuma lambobi suna nuna madaidaicin abun ciki. 00Cr18Ni9, 1Cr17, 3Cr13, 1Cr17Mn6Ni5N da sauransu, lambar tana nuna madaidaicin abun ciki.

200 jerin: chromium-nickel-manganese austenitic bakin karfe
300 jerin: chromium-nickel austenitic bakin karfe
301: Kyakkyawan ductility, ana amfani dashi don samfuran gyare-gyare. Hakanan ana iya taurare da saurin inji. Kyakkyawan weldability. Juriya da ƙarfin gajiya ya fi 304 bakin karfe.
302: juriya na lalata tare da 304, saboda ƙarancin abun ciki na carbon kuma don haka mafi kyawun ƙarfi.
302B: Wani nau'i ne na bakin karfe tare da babban abun ciki na silicon, wanda ke da tsayin daka ga yanayin zafi mai zafi.
303: Ta hanyar ƙara ɗan ƙaramin sulfur da phosphorous don ƙara haɓakawa.
303Se: Hakanan ana amfani dashi don yin sassan injin da ke buƙatar taken zafi, saboda wannan bakin karfe yana da kyakkyawan aiki mai zafi a ƙarƙashin waɗannan yanayi.
304: 18/8 bakin karfe. GB darajar 0Cr18Ni9. 309: mafi kyawun juriya na zafin jiki fiye da 304.
304L: Bambancin 304 bakin karfe tare da ƙananan abun ciki na carbon, ana amfani da shi inda ake buƙatar waldawa. Ƙananan abun ciki na carbon yana rage hazo na carbides a cikin yankin da zafi ya shafa kusa da walda, wanda zai iya haifar da lalata intergranular (weld yashwa) na bakin karfe a wasu wurare.
304N: Bakin karfe mai dauke da nitrogen, wanda ake karawa don kara karfin karfen.
305 da 384: Ya ƙunshi manyan matakan nickel, suna da ƙarancin ƙarfin aiki kuma sun dace da aikace-aikacen da yawa da ke buƙatar babban tsari na sanyi.
308: Ana amfani da sandunan walda.
309, 310, 314 da 330: nickel da chromium abun ciki ne in mun gwada da high, domin inganta hadawan abu da iskar shaka juriya na karfe a high yanayin zafi da creep ƙarfi. Yayin da 30S5 da 310S sune bambance-bambancen 309 da 310 bakin karfe, bambancin shine cewa abun cikin carbon yana da ƙasa, don haka an rage girman carbides da ke kusa da walda. 330 bakin karfe yana da babban juriya na musamman ga carburization da juriya ga girgiza zafi.
316 da 317: sun ƙunshi aluminum, don haka suna da mafi kyawun juriya ga lalata lalata a cikin yanayin masana'antar ruwa da sinadarai fiye da 304 bakin karfe. Daga cikin su, nau'in 316 bakin karfeta bambance-bambancen karatu sun haɗa da ƙananan ƙarfe bakin karfe 316L, nitrogen-dauke da babban ƙarfi bakin karfe 316N, kazalika da babban sulfur abun ciki na free-machining bakin karfe 316F.
321, 347 da 348: su ne titanium, niobium da tantalum, niobium stabilized bakin karfe, dace da amfani a high yanayin zafi a cikin welded aka gyara. 348 wani nau'i ne na bakin karfe wanda ya dace da masana'antar makamashin nukiliya, tantalum da adadin hakowa da aka haɗe tare da ƙayyadaddun ƙuntatawa.
400 jerin: ferritic da martensitic bakin karfe
408: Kyakkyawan juriya mai zafi, juriya mai rauni, 11% Cr, 8% Ni.
409: nau'in mafi arha (British da Amurka), galibi ana amfani da su azaman bututun shaye-shaye na mota, bakin ƙarfe ne na ƙarfe (chromium karfe)
410: Martensitic (ƙarfin chromium mai ƙarfi), juriya mai kyau, juriya mara kyau. 416: sulfur da aka kara yana inganta machinability na kayan.
420: "Yanke kayan aiki sa" martensitic karfe, kama da Brinell high-chromium karfe, farkon bakin karfe. Hakanan ana amfani da wukake na tiyata kuma ana iya yin haske sosai.
430: Ferritic bakin karfe, kayan ado, misali don kayan haɗin mota. Kyakkyawan tsari, amma juriya na zafin jiki da juriya na lalata suna da ƙasa.
440: Babban ƙarfin yankan bakin karfe, ɗan ƙaramin abun ciki na carbon, bayan ingantaccen magani mai zafi zai iya samun ƙarfin yawan amfanin ƙasa, taurin zai iya kaiwa 58HRC, yana cikin mafi girman bakin karfe. Misalin aikace-aikacen da aka fi sani shine "reza ruwan wukake". Akwai nau'ikan nau'ikan nau'ikan da aka saba amfani da su: 440A, 440B, 440C, da 440F (nau'in na'ura mai sauƙi-zuwa).
500 Series: Heat-resistant chromium gami karfe
600 Series: Martensitic hazo-hardening bakin karfe
630: Mafi yawan amfani da hazo-hardening bakin karfe irin, sau da yawa ake kira 17-4; 17% Cr, 4% Ni.