{"id":9714,"date":"2026-01-05T15:48:54","date_gmt":"2026-01-05T07:48:54","guid":{"rendered":"https:\/\/www.cncmachiningshops.com\/?p=9714"},"modified":"2026-01-05T12:05:06","modified_gmt":"2026-01-05T04:05:06","slug":"s45c-steel","status":"publish","type":"post","link":"https:\/\/www.cncmachiningshops.com\/tr\/s45c-steel\/","title":{"rendered":"S45C \u00c7eli\u011fi \u2014 Bile\u015fim, \u00d6zellikler, Is\u0131l \u0130\u015flem ve \u0130\u015flemeye Y\u00f6nelik Kapsaml\u0131 M\u00fchendislik K\u0131lavuzu"},"content":{"rendered":"
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M\u00fchendisler \u201cS45C \u00e7eli\u011fi nedir?\u201d diye sordu\u011funda, genellikle hangi t\u00fcr \u00e7eli\u011fin g\u00fc\u00e7l\u00fc, tok ve d\u00fc\u015f\u00fck maliyetle kolay i\u015flenebilir oldu\u011funu bilmek isterler. S45C \u00e7eli\u011fi (JIS G4051), \u00e7ok \u00e7e\u015fitli mekanik kullan\u0131mlar i\u00e7in en iyi se\u00e7imdir ve bu nedenle d\u00fcnyada en yayg\u0131n kullan\u0131lan orta karbonlu \u00e7eliklerden biridir.<\/span><\/p>\n

JIS standartlar\u0131na g\u00f6re S45C, yakla\u015f\u0131k %0,45 karbon i\u00e7eri\u011fine sahip orta karbonlu bir yap\u0131 \u00e7eli\u011fidir. Bu karbon seviyesi pratik m\u00fchendislik i\u00e7in orta d\u00fczeydedir: \u0131s\u0131l i\u015flem yoluyla g\u00fc\u00e7l\u00fc ve sert hale getirilecek kadar y\u00fcksek, ancak i\u015flenmesi kolay ve tok kalacak kadar d\u00fc\u015f\u00fckt\u00fcr. S45C, miller, di\u015fliler, pimler ve kal\u0131p tabanlar\u0131 gibi y\u00fck ta\u015f\u0131yan, \u0131s\u0131l i\u015flem g\u00f6rm\u00fc\u015f mekanik par\u00e7alar i\u00e7in \u00fcretilmi\u015ftir. Bu, \u00e7o\u011funlukla \u015fekillendirme veya kaynak i\u00e7in kullan\u0131lan d\u00fc\u015f\u00fck karbonlu \u00e7eliklerden farkl\u0131d\u0131r. Bu k\u0131lavuz, S45C'nin metalurjisi, i\u015fleme \u00f6zellikleri ve pratik s\u0131n\u0131rlar\u0131 hakk\u0131nda b\u00fcy\u00fck ayr\u0131nt\u0131ya girerek do\u011fru malzemeyi se\u00e7menize yard\u0131mc\u0131 olacakt\u0131r.<\/span><\/p>\n

S45C \u00c7eli\u011fi Nedir? \u2014 Tan\u0131m, S\u0131n\u0131fland\u0131rma ve Standartlar<\/span><\/h2>\n

Malzeme S\u0131n\u0131fland\u0131rmas\u0131<\/span><\/strong><\/p>\n

Malzeme bilimi a\u00e7\u0131s\u0131ndan S45C'nin \u00fc\u00e7 ana \u00f6zelli\u011fi vard\u0131r:<\/span><\/p>\n

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    Orta Karbonlu Yap\u0131 \u00c7eli\u011fi:<\/span><\/strong> G\u00fcc\u00fcn\u00fc veren yakla\u015f\u0131k %0,45 karbon i\u00e7erir.<\/span><\/p>\n<\/li>\n

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    Ala\u015f\u0131ms\u0131z \u00c7elik:<\/span><\/strong> Krom veya Nikel gibi maliyetli ala\u015f\u0131m elementleri yerine Karbon ve Mangan ile \u00e7al\u0131\u015f\u0131r.<\/span><\/p>\n<\/li>\n

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    Is\u0131l i\u015flem g\u00f6rebilir:<\/span><\/strong> normalize edilebilir, su verilebilir ve temperlenebilir (Q&T) veya ind\u00fcksiyonla sertle\u015ftirilebilir.<\/span><\/p>\n<\/li>\n<\/ul>\n

    S45C karma\u015f\u0131k ala\u015f\u0131m elementleri i\u00e7ermez, ancak y\u00fcksek miktarda karbon i\u00e7erir ve bu da \u0131s\u0131l i\u015flemini kolayla\u015ft\u0131r\u0131r. Bu nedenle, yumu\u015fak \u00e7elikten (SS400 veya S20C gibi) daha g\u00fc\u00e7l\u00fc olmas\u0131 gereken ancak ala\u015f\u0131ml\u0131 \u00e7eliklerin (SCM440 gibi) ek maliyetini gerektirmeyen mekanik par\u00e7alar i\u00e7in varsay\u0131lan se\u00e7imdir.<\/span><\/p>\n

    Standartlar ve K\u00fcresel E\u015fde\u011ferler<\/span><\/h3>\n

    S45C d\u00fcnya \u00e7ap\u0131nda standartla\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r ve t\u00fcm b\u00fcy\u00fck sanayi b\u00f6lgelerinde ayn\u0131 olan kaliteler bulunmaktad\u0131r. Kimyasallarda baz\u0131 k\u00fc\u00e7\u00fck farkl\u0131l\u0131klar vard\u0131r, ancak bu kaliteler \u00e7o\u011fu m\u00fchendislik amac\u0131 i\u00e7in birbirinin yerine kullan\u0131labilir.<\/span><\/p>\n

    Tablo 1: S45C \u00c7eli\u011finin K\u00fcresel E\u015fde\u011ferleri<\/span><\/strong><\/p>\n

    \n\n\n\n\n\n\n\n
    Standart Sistem<\/span><\/td>\nKalite Ad\u0131<\/span><\/td>\nTipik Kullan\u0131m<\/span><\/td>\n<\/tr>\n
    JIS (Japonya)<\/span><\/strong><\/td>\nS45C<\/span><\/td>\nMiller, di\u015fliler ve makine par\u00e7alar\u0131<\/span><\/td>\n<\/tr>\n
    ASTM\/AISI (ABD)<\/span><\/strong><\/td>\nAISI 1045<\/span><\/td>\nGenel mekanik par\u00e7alar<\/span><\/td>\n<\/tr>\n
    EN \/ DIN (Avrupa)<\/span><\/strong><\/td>\nC45 \/ CK45 (1.0503)<\/span><\/td>\nYap\u0131sal olan ve \u0131s\u0131l i\u015flem g\u00f6rm\u00fc\u015f par\u00e7alar<\/span><\/td>\n<\/tr>\n
    GB (\u00c7in)<\/span><\/strong><\/td>\n45#<\/span><\/td>\nStandart yap\u0131sal karbon \u00e7eli\u011fi t\u00fcr\u00fc<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    M\u00fchendisler i\u00e7in not: \u201ce\u015fde\u011fer\u201d ayn\u0131 \u015fey anlam\u0131na gelmez. Farkl\u0131 deoksidasyon y\u00f6ntemleri (killed vs. semi-killed) ve metaldeki k\u00fck\u00fcrt miktar\u0131, i\u015flenebilirli\u011fini ve \u0131s\u0131l i\u015fleme tepkisini etkileyebilir. \u00d6nemli yorulma uygulamalar\u0131 i\u00e7in spesifik haddehane sertifikas\u0131n\u0131 kontrol edin.<\/span><\/p>\n

    S45C \u00c7eli\u011finin Kimyasal Bile\u015fimi ve Ala\u015f\u0131m Elementlerinin \u0130\u015flevleri<\/span><\/h2>\n

    S45C'nin karbon merkezli kimyas\u0131, bir m\u00fchendis olarak ne kadar iyi \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ger\u00e7ekten kontrol eden \u015feydir. Ala\u015f\u0131ml\u0131 \u00e7eliklerin sorunlar\u0131na sahip de\u011fildir; bunun yerine temiz, dengeli bir bile\u015fime sahiptir.<\/span><\/p>\n

    Tablo 2: Yayg\u0131n Kimyasal Bile\u015fim (a\u011f.%)<\/span><\/strong><\/p>\n

    \n\n\n\n\n\n\n\n\n
    Element<\/span><\/td>\nTipik Aral\u0131k<\/span><\/td>\nM\u00fchendislik Rol\u00fc<\/span><\/td>\n<\/tr>\n
    Karbon (C)<\/span><\/strong><\/td>\n0.42 \u2013 0.48<\/span><\/td>\nMukavemeti, sertli\u011fi ve \u0131s\u0131l i\u015fleme tepkisini etkileyen ana fakt\u00f6r.<\/span><\/td>\n<\/tr>\n
    Manganez (Mn)<\/span><\/strong><\/td>\n0.60\u20130.90<\/span><\/td>\nNesneleri daha sert ve daha g\u00fc\u00e7l\u00fc yapar.<\/span><\/td>\n<\/tr>\n
    Silisyum (Si)<\/span><\/strong><\/td>\n0.15-0.35<\/span><\/td>\nOksijeni giderir ve biraz mukavemet katar.<\/span><\/td>\n<\/tr>\n
    Fosfor (P)<\/span><\/strong><\/td>\n\u2264 0,030<\/span><\/td>\nBu, safs\u0131zl\u0131klar\u0131 kontrol eder ve nesnelerin gevrekle\u015fmesini \u00f6nler.<\/span><\/td>\n<\/tr>\n
    S\u00fclf\u00fcr (S)<\/span><\/strong><\/td>\n\u2264 0,035<\/span><\/td>\nSafs\u0131zl\u0131k kontrol\u00fc (i\u015flenebilirli\u011fi toklu\u011fa kar\u015f\u0131 etkiler).<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Karbonun \u0130\u015flevi (yakla\u015f\u0131k %0,45)<\/span><\/h3>\n

    Karbon, S45C'nin bu \u015fekilde \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flayan \u015feydir.<\/span><\/p>\n

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      %0,40'\u0131n alt\u0131nda \u00e7elik kaynak yapmak daha kolayd\u0131r ancak derinlemesine sertle\u015ftirmek daha zordur.<\/span><\/p>\n<\/li>\n

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      %0,50'nin \u00fczerinde sertlik artar, ancak tokluk ve i\u015flenebilirlik azal\u0131r.<\/span><\/p>\n<\/li>\n

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      %0,45\u201cte S45C \u201dGoldilocks\" b\u00f6lgesine ula\u015f\u0131r: miller ve di\u015fliler i\u00e7in yeterince sert ve \u015fok y\u00fcklemeye dayanacak kadar toktur.<\/span><\/p>\n<\/li>\n<\/ul>\n

      Mikroyap\u0131 Temelleri \u2014 Ferrit\u2013Perlitten Temperlenmi\u015f Martensite<\/span><\/h2>\n

      S45C'nin mikroyap\u0131s\u0131 mekanik davran\u0131\u015f\u0131n\u0131 kontrol eder ve bu, i\u015fleme s\u0131ras\u0131nda b\u00fcy\u00fck \u00f6l\u00e7\u00fcde de\u011fi\u015fir.<\/span><\/p>\n

      Haddeleme veya normalizasyon yap\u0131lm\u0131\u015f yap\u0131<\/span><\/strong><\/p>\n

      S45C, verilen durumda Ferrit ve Perlit'ten olu\u015fur.<\/span><\/p>\n

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        Ferrit<\/span><\/strong> yumu\u015fakt\u0131r ve b\u00fck\u00fclebilir.<\/span><\/p>\n<\/li>\n

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        Perlit<\/span><\/strong> g\u00fc\u00e7l\u00fc, a\u015f\u0131nmaya dayan\u0131kl\u0131 ferrit ve sementit katmanlar\u0131ndan olu\u015fur.<\/span><\/p>\n<\/li>\n<\/ul>\n

        Bu \u015fekil i\u015fleme i\u00e7in en iyisidir \u00e7\u00fcnk\u00fc dengelidir. Perlit tala\u015flar\u0131 k\u0131r\u0131lacak kadar sert yapar ve ferrit tak\u0131mlar\u0131n dayanmas\u0131n\u0131 sa\u011flar.<\/span><\/p>\n

        Su verilmi\u015f ve temperlenmi\u015f (Q&T) mikroyap\u0131<\/span><\/strong><\/p>\n

        Su verildi\u011finde yap\u0131, sert ve gerilimli bir faz olan Martenzit'e d\u00f6n\u00fc\u015f\u00fcr. Ard\u0131ndan temperleme bunu temperlenmi\u015f martenzite gev\u015fetir.<\/span><\/p>\n

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          Performans:<\/span><\/strong> Bu yap\u0131 y\u00fcksek akma dayan\u0131m\u0131na sahiptir ve yorulmaya kar\u015f\u0131 diren\u00e7lidir.<\/span><\/p>\n<\/li>\n

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          S\u0131n\u0131rlama:<\/span><\/strong> S45C d\u00fc\u015f\u00fck sertle\u015febilirli\u011fe sahiptir \u00e7\u00fcnk\u00fc Krom gibi herhangi bir ala\u015f\u0131m elementi i\u00e7ermez. Kal\u0131n kesitler (60 mm'den fazla) \u00e7ekirde\u011fe kadar sertle\u015fmeyebilir ve daha yumu\u015fak bir perlit merkezi b\u0131rakabilir.<\/span><\/p>\n<\/li>\n<\/ul>\n

          S45C \u00c7eli\u011finin Mekanik ve Fiziksel \u00d6zellikleri<\/span><\/h2>\n

          S45C'nin \u00f6zellikleri ko\u015fullara b\u00fcy\u00fck \u00f6l\u00e7\u00fcde ba\u011fl\u0131d\u0131r. M\u00fchendisler, par\u00e7an\u0131n ama\u00e7land\u0131\u011f\u0131 gibi \u00e7al\u0131\u015fmas\u0131 i\u00e7in hangi durumda (Normalize veya Q&T) olmas\u0131 gerekti\u011fini belirtmelidir.<\/span><\/p>\n

          Tablo 3: Duruma G\u00f6re Mekanik \u00d6zellikler<\/span><\/strong><\/p>\n

          \n\n\n\n\n\n\n\n
          Durum<\/span><\/td>\n\u00c7ekme Dayan\u0131m\u0131 (MPa)<\/span><\/td>\nAkma Mukavemeti (MPa)<\/span><\/td>\nUzama (%)<\/span><\/td>\nSertlik (HB)<\/span><\/td>\nM\u00fchendislik Ba\u011flam\u0131<\/span><\/td>\n<\/tr>\n
          Normalle\u015ftirilmi\u015f<\/span><\/strong><\/td>\n~570\u2013650<\/span><\/td>\n~300\u2013350<\/span><\/td>\n16\u201320<\/span><\/td>\n160\u2013220<\/span><\/td>\nGenel i\u015fleme i\u00e7in en iyisi.<\/span><\/td>\n<\/tr>\n
          Q&T (Tok)<\/span><\/strong><\/td>\n650\u2013800<\/span><\/td>\n400\u2013550<\/span><\/td>\n14\u201318<\/span><\/td>\n200\u2013260<\/span><\/td>\nGenel yap\u0131sal par\u00e7alar.<\/span><\/td>\n<\/tr>\n
          Q&T (Sert)<\/span><\/strong><\/td>\n800-950<\/span><\/td>\n550\u2013650<\/span><\/td>\n10\u201314<\/span><\/td>\n280\u2013350<\/span><\/td>\nMiller ve di\u015fliler.<\/span><\/td>\n<\/tr>\n
          \u0130nd\u00fcksiyonla Sertle\u015ftirilmi\u015f<\/span><\/strong><\/td>\n-<\/span><\/td>\n-<\/span><\/td>\n-<\/span><\/td>\n50-55 HRC<\/span><\/td>\nY\u00fczeyde a\u015f\u0131nmaya dayan\u0131kl\u0131.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

          Fiziksel \u00d6zellikler<\/span><\/strong><\/p>\n

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            Yo\u011funluk:<\/span><\/strong> Santimetrek\u00fcp ba\u015f\u0131na 7,85 gram<\/span><\/p>\n<\/li>\n

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            Elastik Mod\u00fcl:<\/span><\/strong> 205 GPa (Bu \u00e7elik i\u00e7in standartt\u0131r; \u0131s\u0131l i\u015flem sertli\u011fi de\u011fi\u015ftirmez.)<\/span><\/p>\n<\/li>\n

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            Termal Genle\u015fme:<\/span><\/strong> yakla\u015f\u0131k 11,5 \u00b5m\/m\u00b7\u00b0C.<\/span><\/p>\n<\/li>\n<\/ul>\n

            S45C \u00c7eli\u011finin Is\u0131l \u0130\u015flemi: S\u00fcre\u00e7ler, Parametreler ve Optimizasyon<\/span><\/h2>\n

            S45C'nin tam potansiyeli \u0131s\u0131l i\u015flemle ortaya \u00e7\u0131kar.<\/span><\/p>\n

            Normalizasyon<\/span><\/strong><\/p>\n

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              S\u00fcre\u00e7:<\/span><\/strong> Yakla\u015f\u0131k 850\u00b0C'ye \u0131s\u0131t\u0131n ve havada so\u011fumaya b\u0131rak\u0131n.<\/span><\/p>\n<\/li>\n

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              Ama\u00e7:<\/span><\/strong> D\u00f6vme sonras\u0131 tane boyutunu k\u00fc\u00e7\u00fcltmek i\u00e7in. Her yerde ayn\u0131 olan i\u015fleme \u00f6zellikleri sa\u011flar.<\/span><\/p>\n<\/li>\n<\/ul>\n

              Su Verme ve Temperleme (Q&T)<\/span><\/strong><\/p>\n

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                S\u00f6nd\u00fcrme:<\/span><\/strong> Yakla\u015f\u0131k 820\u2013860\u00b0C'ye \u0131s\u0131t\u0131n. Su verme i\u015fleri olabildi\u011fince sert yapar, ancak k\u0131r\u0131lmalar\u0131na da neden olabilir. Ya\u011f verme daha g\u00fcvenlidir, ancak i\u015fleri biraz daha az sert yapar.<\/span><\/p>\n<\/li>\n

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                Temperleme:<\/span><\/strong> Toklu\u011funu geri kazand\u0131rmak i\u00e7in 550\u2013650\u00b0C'ye yeniden \u0131s\u0131t\u0131n.<\/span><\/p>\n

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                  Daha D\u00fc\u015f\u00fck S\u0131cakl\u0131k: Daha Y\u00fcksek Sertlik (A\u015f\u0131nan par\u00e7alar).<\/span><\/p>\n<\/li>\n

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                  Daha y\u00fcksek s\u0131cakl\u0131k, yap\u0131sal par\u00e7alar i\u00e7in daha fazla tokluk anlam\u0131na gelir.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                  Y\u00fczeyin sertle\u015ftirilmesi (ind\u00fcksiyon)<\/span><\/strong><\/p>\n

                  \u0130nd\u00fcksiyonla Sertle\u015ftirme S45C ile iyi \u00e7al\u0131\u015f\u0131r. %0,45 karbon, y\u00fczeyin hemen 50\u201355 HRC'ye ula\u015fmas\u0131n\u0131 sa\u011flar, a\u015f\u0131nmayan bir kabuk olu\u015fturur ve \u00e7ekirde\u011fi g\u00fc\u00e7l\u00fc tutar.<\/span><\/p>\n

                  \u0130\u015fleme ve \u00dcretim Hususlar\u0131 (DFM)<\/span><\/h2>\n

                  \u00dcretim i\u00e7in Tasar\u0131m (DFM) a\u00e7\u0131s\u0131ndan bak\u0131ld\u0131\u011f\u0131nda, S45C nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 biliyorsan\u0131z iyi bir malzemedir.<\/span><\/p>\n

                  \u0130\u015flemenin ne kadar iyi \u00e7al\u0131\u015ft\u0131\u011f\u0131<\/span><\/strong><\/p>\n

                  S45C normalize durumdayken g\u00fczel i\u015flenir. Her zaman kolay i\u015flenebilen tala\u015flar \u00fcretir.<\/span><\/p>\n

                  Q&T Durumu:<\/span><\/strong> Bir \u015fey ne kadar sertse, i\u015flenebilirli\u011fi o kadar azal\u0131r. 30 HRC'nin \u00fczerinde kesme h\u0131zlar\u0131 d\u00fc\u015f\u00fcr\u00fclmeli ve karb\u00fcr tak\u0131mlar kullan\u0131lmal\u0131d\u0131r.<\/span><\/p>\n

                  Tablo 4: \u0130\u015fleme Stratejisi<\/span><\/strong><\/p>\n

                  \n\n\n\n\n\n\n
                  Operasyon<\/span><\/td>\nTak\u0131m \u00d6nerisi<\/span><\/td>\nH\u0131z\/\u0130lerleme Plan\u0131<\/span><\/td>\n<\/tr>\n
                  D\u00f6n\u00fc\u015f<\/span><\/strong><\/td>\nKaplamal\u0131 Karb\u00fcr (TiAlN)<\/span><\/td>\nOrta h\u0131z ve tala\u015f k\u0131rmak i\u00e7in sabit ilerleme.<\/span><\/td>\n<\/tr>\n
                  Frezeleme<\/span><\/strong><\/td>\nKarb\u00fcr Parmak Frezeler<\/span><\/td>\nT\u0131rmanma frezeleme daha iyidir. Sel i\u00e7in so\u011futma s\u0131v\u0131s\u0131.<\/span><\/td>\n<\/tr>\n
                  Sondaj<\/span><\/strong><\/td>\nHSS veya karb\u00fcr<\/span><\/td>\nDerin delikler a\u00e7mak ve tala\u015flar\u0131 temizlemek i\u00e7in kademeli delme.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

                  Kaynaklanabilirlik ve \u0130\u015fleme<\/span><\/strong><\/p>\n

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                    Uyar\u0131:<\/span><\/strong> S45C iyi kaynak yap\u0131lmaz.<\/span><\/p>\n<\/li>\n

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                    Risk:<\/span><\/strong> Orta karbon i\u00e7eri\u011fi, Is\u0131dan Etkilenen B\u00f6lgeyi (HAZ) sert ve gevrekle\u015ftirir, bu da so\u011fuk \u00e7atlamaya neden olabilir.<\/span><\/p>\n<\/li>\n

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                    Cevap:<\/span><\/strong><\/p>\n

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                      F\u0131r\u0131n\u0131 150\u2013250\u00b0C'ye ayarlay\u0131n.<\/span><\/p>\n<\/li>\n

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                      D\u00fc\u015f\u00fck Hidrojenli Elektrotlar: Gerekli.<\/span><\/p>\n<\/li>\n

                    • \n

                      Kaynak sonras\u0131 \u0131s\u0131l i\u015flem ile kaynaktan hemen sonra gerilim giderin veya temperleyin.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                    • \n

                      Bir par\u00e7a \u00e7ok fazla kaynak gerektiriyorsa, d\u00fc\u015f\u00fck karbonlu \u00e7eli\u011fe (S20C veya SS400) ge\u00e7mek isteyebilirsiniz.<\/span><\/p>\n<\/li>\n<\/ul>\n

                      S45C \u00c7eli\u011finin End\u00fcstride Tipik Uygulamalar\u0131<\/span><\/h2>\n

                      S45C \u00e7o\u011fu makinenin en \u00f6nemli par\u00e7as\u0131d\u0131r.<\/span><\/p>\n

                        \n
                      • \n

                        Otomotiv par\u00e7alar\u0131:<\/span><\/strong> krank milleri, biyel kollar\u0131, akslar ve s\u00fcspansiyon kollar\u0131n\u0131 i\u00e7erir.<\/span><\/p>\n<\/li>\n

                      • \n

                        Makine:<\/span><\/strong> Tahrik milleri, miller ve k\u0131lavuz \u00e7ubuklar\u0131, genellikle ind\u00fcksiyonla sertle\u015ftirilen makine par\u00e7alar\u0131d\u0131r.<\/span><\/p>\n<\/li>\n

                      • \n

                        Di\u015fliler:<\/span><\/strong> Orta y\u00fckl\u00fc transmisyon i\u00e7in zincir di\u015flileri ve d\u00fcz di\u015fliler.<\/span><\/p>\n<\/li>\n

                      • \n

                        Kal\u0131p yap\u0131m\u0131:<\/span><\/strong> standart kal\u0131p tabanlar\u0131 (y\u00fcksek sertlik gerekmedi\u011finde) ve yap\u0131sal destek plakalar\u0131.<\/span><\/p>\n<\/li>\n

                      • \n

                        Ba\u011flant\u0131 elemanlar\u0131:<\/span><\/strong> \u00c7ok g\u00fc\u00e7l\u00fc c\u0131vatalar ve saplamalar.<\/span><\/p>\n<\/li>\n<\/ul>\n

                        S45C Ne Zaman Kullan\u0131lmamal\u0131d\u0131r<\/span><\/strong><\/p>\n

                          \n
                        • \n

                          Korozif Ortamlar:<\/span><\/strong> H\u0131zla paslan\u0131r. Boyanmas\u0131 veya kaplanmas\u0131 gerekir.<\/span><\/p>\n<\/li>\n

                        • \n

                          Y\u00fcksek a\u015f\u0131nma kullan\u0131m\u0131 i\u00e7in Tak\u0131m \u00c7eli\u011fi (D2) veya Rulman \u00c7eli\u011fi (52100) kullan\u0131n.<\/span><\/p>\n<\/li>\n

                        • \n

                          Y\u00fcksek Yorulma\/Darbe:<\/span><\/strong> \u00c7ok \u00f6nemli g\u00fcvenlik par\u00e7alar\u0131 yapman\u0131z gerekiyorsa, Ala\u015f\u0131ml\u0131 \u00c7eli\u011fe (SCM440 \/ 4140) ge\u00e7in.<\/span><\/p>\n<\/li>\n<\/ul>\n

                          S45C ile Benzer \u00c7elikler \u2014 Se\u00e7im K\u0131lavuzu<\/span><\/h2>\n

                          \u00c7elik se\u00e7erken, kaliteyi y\u00fcke uygun hale getirmek \u00f6nemlidir.<\/span><\/p>\n

                          Tablo 5: S45C ve Di\u011fer Yayg\u0131n Se\u00e7enekler<\/span><\/strong><\/p>\n

                          \n\n\n\n\n\n\n\n
                          S\u0131n\u0131f<\/span><\/td>\nKarbon<\/span><\/td>\nG\u00fc\u00e7<\/span><\/td>\n\u0130\u015flenebilirlik<\/span><\/td>\nKaynaklanabilirlik<\/span><\/td>\nEn \u0130yi Kullan\u0131m<\/span><\/td>\n<\/tr>\n
                          S45C<\/span><\/strong><\/td>\n0.45%<\/span><\/td>\nY\u00fcksek<\/span><\/td>\n\u0130yi<\/span><\/td>\nAdil<\/span><\/td>\nMiller, Di\u015fliler<\/span><\/td>\n<\/tr>\n
                          S20C (1020)<\/span><\/strong><\/td>\n0.20%<\/span><\/td>\nD\u00fc\u015f\u00fck<\/span><\/td>\nM\u00fckemmel<\/span><\/td>\nM\u00fckemmel<\/span><\/td>\nKaynakl\u0131 \u00c7er\u00e7eveler<\/span><\/td>\n<\/tr>\n
                          S50C<\/span><\/strong><\/td>\n0.50%<\/span><\/td>\nDaha y\u00fcksek<\/span><\/td>\nAdil<\/span><\/td>\nZay\u0131f<\/span><\/td>\nY\u00fcksek Mukavemetli A\u015f\u0131nma Par\u00e7alar\u0131<\/span><\/td>\n<\/tr>\n
                          SCM440 (4140)<\/span><\/strong><\/td>\n0.40%<\/span><\/td>\n\u00c7ok Y\u00fcksek<\/span><\/td>\nAdil<\/span><\/td>\nZor<\/span><\/td>\nY\u00fcksek Gerilme\/Yorulma Par\u00e7alar\u0131<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

                          Se\u00e7im i\u00e7in Mant\u0131k:<\/span><\/strong><\/p>\n

                            \n
                          • \n

                            Kaynak yapman\u0131z m\u0131 gerekiyor? -> Se\u00e7in <\/span>S20C<\/span><\/strong>.<\/span><\/p>\n<\/li>\n

                          • \n

                            Y\u00fcksek mukavemet isteyip \u00e7ok para harcamak istemiyor musunuz? -> Se\u00e7in <\/span>S45C<\/span><\/strong>.<\/span><\/p>\n<\/li>\n

                          • \n

                            Kal\u0131n par\u00e7alar i\u00e7in derin sertle\u015ftirmeye mi ihtiyac\u0131n\u0131z var? -> Se\u00e7in <\/span>SCM440 (4140)<\/span><\/strong>.<\/span><\/p>\n<\/li>\n<\/ul>\n

                            \u00d6zet \u2014 S45C \u00c7eli\u011fi i\u00e7in M\u00fchendislik \u00c7\u0131kar\u0131mlar\u0131<\/span><\/h2>\n

                            S45C \u00e7eli\u011fi en iyi orta karbonlu m\u00fchendislik \u00e7eli\u011fidir. Mukavemet, tokluk ve maliyetin iyi bir kar\u0131\u015f\u0131m\u0131na sahiptir ve bu da onu \u00e7o\u011fu mekanik par\u00e7a i\u00e7in en iyi se\u00e7im yapar.<\/span><\/p>\n

                            \u00d6nemli Noktalar:<\/span><\/strong><\/p>\n

                              \n
                            • \n

                              Esnek:<\/span><\/strong> Yumu\u015fak (normalize edilmi\u015f) veya sert (su verilmi\u015f veya ind\u00fcksiyonla sertle\u015ftirilmi\u015f) olarak kullan\u0131labilir.<\/span><\/p>\n<\/li>\n

                            • \n

                              Maliyet Etkin:<\/span><\/strong> Ala\u015f\u0131ml\u0131 \u00e7eliklerden \u00e7ok daha ucuzdur ve makine kullan\u0131mlar\u0131n\u0131n 80%'si i\u00e7in yeterince g\u00fc\u00e7l\u00fcd\u00fcr.<\/span><\/p>\n<\/li>\n

                            • \n

                              Prosese Ba\u011fl\u0131:<\/span><\/strong> Is\u0131l i\u015flem daha iyi \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar. Onsuz sadece g\u00fc\u00e7l\u00fc demirdir.<\/span><\/p>\n<\/li>\n

                            • \n

                              S\u0131n\u0131rlar\u0131 Bilin:<\/span><\/strong> Don’t weld it without taking safety measures, and don’t use it for loads that are too heavy.<\/span><\/p>\n<\/li>\n<\/ul>\n

                              Engineers can design strong, affordable machines without using too many expensive alloys if they know what S45C can do.<\/span><\/p>\n

                              S\u0131k\u00e7a Sorulan Sorular<\/span><\/h2>\n

                              Q: How hard is S45C?<\/span><\/strong>
                              A: Normalized: 170\u2013220 HB. Quenched and tempered: 20\u201330 HRC (core) and up to 55 HRC (induction hardened surface).<\/span><\/p>\n

                              Q: Can CNC machines work with S45C?<\/span><\/strong>
                              A: Yes. It works very well when it is in a normalized state. It makes good chips and smooth surfaces. It is possible to machine hardened steel (more than 30 HRC), but you need carbide tools and slower speeds.<\/span><\/p>\n

                              Q: Is it possible to weld S45C?<\/span><\/strong>
                              A: Yes, but only with strict rules. To keep the part from cracking, you need to heat it up first. If possible, don’t weld S45C in structural applications; use mechanical fasteners instead.<\/span><\/p>\n

                              Q: Is S45C better than SS400?<\/span><\/strong>
                              A: SS400 is a mild steel that is not very strong and can’t be heat treated. S45C is much harder and stronger. Use SS400 for static parts (frames) and S45C for moving parts (shafts).<\/span><\/p>\n

                              Q: Will S45C rust?<\/span><\/strong>
                              A: Yes. It is a simple carbon steel that does not resist rust. To keep it from rusting, it needs to be oiled, painted, or plated (with zinc, nickel, or chrome).<\/span><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

                              When engineers ask, “What is S45C steel?” they usually want to know what kind of steel is strong, tough, and easy to work with at a low cost.<\/p>","protected":false},"author":1,"featured_media":9807,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[103],"tags":[],"class_list":["post-9714","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-guide"],"yoast_head":"\nS45C Steel: Composition, Properties & Machining Guide<\/title>\n<meta name=\"description\" content=\"Comprehensive engineering guide to S45C carbon steel, covering chemical composition, mechanical properties, heat treatment methods, machinability, and typical applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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