{"id":9468,"date":"2025-12-29T15:56:07","date_gmt":"2025-12-29T07:56:07","guid":{"rendered":"https:\/\/www.cncmachiningshops.com\/?p=9468"},"modified":"2026-01-01T10:21:52","modified_gmt":"2026-01-01T02:21:52","slug":"45-steel","status":"publish","type":"post","link":"https:\/\/www.cncmachiningshops.com\/tr\/45-steel\/","title":{"rendered":"45# \u00c7eli\u011fi (C45 \/ 1045 \/ S45C): Kimyasal Bile\u015fim, Mekanik \u00d6zellikler ve M\u00fchendislik Uygulamalar\u0131"},"content":{"rendered":"
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Makine m\u00fchendisli\u011finde 45# \u00e7eli\u011fi en iyi orta karbonlu \u00e7eliktir. D\u00fcnya genelinde AISI 1045, C45 veya S45C olarak da bilinir. Uzun s\u00fcredir pop\u00fclerdir \u00e7\u00fcnk\u00fc iyi tan\u0131mlanm\u0131\u015f bir m\u00fchendislik dengesine sahiptir: d\u00fc\u015f\u00fck karbonlu yap\u0131sal \u00e7eliklerden daha g\u00fc\u00e7l\u00fcd\u00fcr, \u0131s\u0131l i\u015flem yoluyla daha tok hale getirilebilir ve \u00e7ok maliyet etkindir.<\/span><\/p>\n

\u201c45\u201d ad\u0131, a\u011f\u0131rl\u0131k\u00e7a yakla\u015f\u0131k %0,45% karbon i\u00e7ermesinden gelir. Davran\u0131\u015f\u0131 \u00fczerinde en fazla etkiye sahip olan tek \u015fey budur. Karbon i\u00e7eri\u011fi bu kadar y\u00fcksek oldu\u011funda, \u00e7elik Q235 veya 1018 gibi \u00e7eliklerden \u00e7ok daha g\u00fc\u00e7l\u00fc ve sert hale getirmek i\u00e7in su verilebilir ve temperlenebilir. \u00d6te yandan, d\u00fc\u015f\u00fck karbonlu \u00e7elikler mukavemetlerini \u00e7o\u011funlukla kesit boyutlar\u0131ndan al\u0131r.<\/span><\/p>\n

Miller, di\u015fliler, biyel kollar\u0131, i\u011fler ve di\u011fer mekanik par\u00e7alar i\u00e7in 45# \u00e7eli\u011fi en yayg\u0131n tercihtir. Tam sertle\u015ftirme veya y\u00fczey sertle\u015ftirme gerekti\u011finde, ancak ala\u015f\u0131ml\u0131 \u00e7elikler (4140 gibi) a\u015f\u0131r\u0131 veya \u00e7ok pahal\u0131 olacaksa tercih edilir.<\/span><\/p>\n

Bu makale, 45# \u00e7eli\u011fini bir m\u00fchendislik malzemesi olarak ele almaktad\u0131r. Kimyasal bile\u015fim, \u0131s\u0131l i\u015fleme nas\u0131l tepki verdi\u011fi, i\u015flenmesinin ne kadar kolay oldu\u011fu ve projeniz i\u00e7in en iyi malzemeyi nas\u0131l se\u00e7ece\u011finiz gibi konular\u0131 birbirine ba\u011flar.<\/span><\/p>\n

45# \u00e7eli\u011fi nedir? Bu makale, adland\u0131rma kurallar\u0131n\u0131 ve d\u00fcnya genelindeki di\u011fer \u00e7elik t\u00fcrleriyle nas\u0131l kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayacakt\u0131r.<\/span><\/h2>\n

45# \u00e7eli\u011fini anlamak i\u00e7in onu olu\u015fturan standartlara bakmam\u0131z gerekir. Y\u00fcksek kaliteli karbon yap\u0131sal \u00e7elikleri kapsayan \u00c7in ulusal standard\u0131 GB\/T 699 bunu tan\u0131mlar.<\/span><\/p>\n

Adland\u0131rma Kural\u0131<\/span><\/h3>\n

Kural basittir:<\/span><\/p>\n

    \n
  • \n

    \u201c45\u201d:<\/span><\/strong> Bu, ortalama karbon i\u00e7eri\u011finin %0,45% oldu\u011fu anlam\u0131na gelir.<\/span><\/p>\n<\/li>\n

  • \n

    \u201c#\u201d:<\/span><\/strong> \u00c7in end\u00fcstri jargonunda \u201cNumara\u201d veya \u201cS\u0131n\u0131f\u201d anlam\u0131na gelen yayg\u0131n bir son ek.\u201d<\/span><\/p>\n<\/li>\n<\/ul>\n

    Di\u011fer \u00fclkelerde ayn\u0131 olan s\u0131n\u0131flar<\/span><\/h3>\n

    45# \u00e7eli\u011fi, d\u00fcnya genelinde bilinen bir orta karbonlu \u00e7elik t\u00fcr\u00fcd\u00fcr. Kimyasal olarak benzer olsalar da, nihai \u00f6zellikler nas\u0131l \u0131s\u0131l i\u015flem g\u00f6rd\u00fcklerine ba\u011fl\u0131d\u0131r.<\/span><\/p>\n

    Tablo 1: D\u00fcnya genelindeki e\u015fde\u011ferleri<\/span><\/strong><\/p>\n

    \n\n\n\n\n\n\n\n
    B\u00f6lge \/ Standart<\/span><\/td>\nKalite Tan\u0131m\u0131<\/span><\/td>\nNot<\/span><\/td>\n<\/tr>\n
    \u00c7in (GB)<\/span><\/strong><\/td>\n45#<\/span><\/td>\ny\u00fcksek kaliteli bir karbon yap\u0131sal \u00e7elik t\u00fcr\u00fc.<\/span><\/td>\n<\/tr>\n
    ABD (ASTM\/SAE)<\/span><\/strong><\/td>\nAISI 1045<\/span><\/td>\nKuzey Amerika'da en yayg\u0131n orta karbonlu \u00e7elik t\u00fcr\u00fc.<\/span><\/td>\n<\/tr>\n
    Avrupa (EN)<\/span><\/strong><\/td>\nC45 \/ 1.0503<\/span><\/td>\nOtomobillerde ve makinelerde \u00e7ok kullan\u0131l\u0131r.<\/span><\/td>\n<\/tr>\n
    Japonya (JIS)<\/span><\/strong><\/td>\nS45C<\/span><\/td>\nAsya'da makine par\u00e7alar\u0131 i\u00e7in en yayg\u0131n s\u0131n\u0131f.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    M\u00fchendislik A\u00e7\u0131klamas\u0131:<\/span><\/strong> \u201cE\u015fde\u011fer\u201d ayn\u0131 \u015fey anlam\u0131na gelmez. Almanya'dan bir C45 plakas\u0131, \u00c7in'den bir 45# \u00e7ubu\u011fundan farkl\u0131 manganez limitlerine sahip olabilir. \u00d6nemli kullan\u0131mlar i\u00e7in her zaman spesifik de\u011firmen sertifikalar\u0131n\u0131 (MTR'ler) kontrol edin.<\/span><\/p>\n

    45# \u00e7eli\u011finin kimyasal yap\u0131s\u0131 ve bunun metalurji i\u00e7in anlam\u0131<\/span><\/h2>\n

    45# \u00e7eli\u011finin karbon merkezli kimyasal tasar\u0131m\u0131, ne kadar iyi \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 belirler. Mukavemet i\u00e7in Karbon ve sertle\u015ftirme i\u00e7in Manganez kullan\u0131r.<\/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\n
    Element<\/span><\/td>\nAral\u0131k<\/span><\/td>\nMetalurjik \u00d6nem<\/span><\/td>\n<\/tr>\n
    Karbon (C)<\/span><\/strong><\/td>\n0.42\u20130.50<\/span><\/td>\nNesneleri g\u00fc\u00e7l\u00fc, sert ve sertle\u015febilir yapan ana \u015fey.<\/span><\/td>\n<\/tr>\n
    Manganez (Mn)<\/span><\/strong><\/td>\n0.50\u20130.80<\/span><\/td>\nNesneleri daha g\u00fc\u00e7l\u00fc ve sert yapar; homojen su vermeye yard\u0131mc\u0131 olur.<\/span><\/td>\n<\/tr>\n
    Silisyum (Si)<\/span><\/strong><\/td>\n0.17\u20130.37<\/span><\/td>\noksijeni giderir ve biraz mukavemet katar.<\/span><\/td>\n<\/tr>\n
    Fosfor (P)<\/span><\/strong><\/td>\n\u2264 0,035<\/span><\/td>\nbir safs\u0131zl\u0131k. Fazlas\u0131 toklu\u011funu azalt\u0131r (so\u011fuk k\u0131r\u0131lganl\u0131\u011f\u0131).<\/span><\/td>\n<\/tr>\n
    S\u00fclf\u00fcr (S)<\/span><\/strong><\/td>\n\u2264 0,035<\/span><\/td>\nSafs\u0131zl\u0131k. \u0130\u015flenmesini kolayla\u015ft\u0131r\u0131r (iyi) ve k\u0131r\u0131lmas\u0131n\u0131 zorla\u015ft\u0131r\u0131r (k\u00f6t\u00fc).<\/span><\/td>\n<\/tr>\n
    Krom\/Nikel<\/span><\/strong><\/td>\n\u2264 0,25<\/span><\/td>\nKal\u0131nt\u0131lar. Kas\u0131tl\u0131 olarak eklenmez (ala\u015f\u0131ml\u0131 \u00e7elikler gibi).<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Karbonun i\u015flevi (%0,45%)<\/span><\/h3>\n
      \n
    • \n

      Sertle\u015febilirlik:<\/span><\/strong> Bu, \u00e7elik so\u011futuldu\u011funda Martenzit olu\u015fumunu sa\u011flar ve bu da onu daha sert yapar. Y\u00fczey 50+ HRC'ye ve \u00e7ekirdek 20-30 HRC'ye ula\u015fabilir.<\/span><\/p>\n<\/li>\n

    • \n

      \u00d6d\u00fcnle\u015fim:<\/span><\/strong> Karbon ne kadar fazlaysa, kaynak yapmak o kadar zordur. Is\u0131dan Etkilenen B\u00f6lge'nin (HAZ) \u00e7atlama ger\u00e7ek bir olas\u0131l\u0131kt\u0131r.<\/span><\/p>\n<\/li>\n<\/ul>\n

      45# Neden Bir \u00c7elik Ala\u015f\u0131m\u0131 De\u011fildir<\/span><\/h3>\n

      Yeterli Krom, Molibden veya Vanadyum i\u00e7ermez. \u00d6zelliklerini Demir-Karbon faz de\u011fi\u015fimi verir. Bu, 4140 gibi kal\u0131n kesitleri sertle\u015ftiremeyece\u011fi anlam\u0131na gelir ve bu da onu daha az sertle\u015febilir k\u0131lar.<\/span><\/p>\n

      Mikroyap\u0131 ve Mukavemet Mekanizmalar\u0131<\/span><\/h2>\n

      45# \u00e7eli\u011finin mikroyap\u0131s\u0131, mekanik olarak nas\u0131l davrand\u0131\u011f\u0131n\u0131 do\u011frudan etkiler.<\/span><\/p>\n

        \n
      1. \n

        Normalize Edilmi\u015f veya Tavlanm\u0131\u015f (Ferrit-Perl\u0130t)<\/span><\/strong><\/p>\n

          \n
        • \n

          Yap\u0131, haddelenmi\u015f veya normalize edilmi\u015f durumda hem yumu\u015fak Ferrit hem de sert Perl\u0130t'ten olu\u015fur.<\/span><\/p>\n<\/li>\n

        • \n

          Sonu\u00e7:<\/span><\/strong> \u0130\u015flenmesi kolay, orta mukavemetli ve iyi s\u00fcneklik. \u00c7ubuk stok genellikle bu \u015fekilde tedarik edilir.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

        • \n

          Temperlenmi\u015f ve su verilmi\u015f (temperlenmi\u015f martenzit)<\/span><\/strong><\/p>\n

            \n
          • \n

            Is\u0131t\u0131ld\u0131ktan sonra yap\u0131 Temperlenmi\u015f Martenzit'e d\u00f6n\u00fc\u015f\u00fcr.<\/span><\/p>\n<\/li>\n

          • \n

            Sonu\u00e7:<\/span><\/strong> G\u00fc\u00e7l\u00fc, sert ve tok, ancak a\u015f\u0131r\u0131 tok de\u011fil. Bitmi\u015f miller ve di\u015fliler bu durumdad\u0131r.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

            45# \u00e7eli\u011finin fiziksel ve mekanik \u00f6zellikleri<\/span><\/h2>\n

            Is\u0131l i\u015fleme ba\u011fl\u0131 olarak \u00f6zellikler b\u00fcy\u00fck \u00f6l\u00e7\u00fcde de\u011fi\u015febilir. M\u00fchendislerin durumu \u00e7izim \u00fczerinde belirtmesi gerekir.<\/span><\/p>\n

            Ko\u015fullar Mekanik \u00d6zellikleri Etkiler<\/span><\/h3>\n

            Tablo 3: Yayg\u0131n Mekanik \u00d6zellikler<\/span><\/strong><\/p>\n

            \n\n\n\n\n\n\n
            Durum<\/span><\/td>\nAkma Mukavemeti (MPa)<\/span><\/td>\n\u00c7ekme Dayan\u0131m\u0131 (MPa)<\/span><\/td>\nSertlik<\/span><\/td>\nUzama<\/span><\/td>\n<\/tr>\n
            Tavlanm\u0131\u015f<\/span><\/strong><\/td>\n~310<\/span><\/td>\n~570<\/span><\/td>\n~170 HB<\/span><\/td>\n16%<\/span><\/td>\n<\/tr>\n
            Normalle\u015ftirilmi\u015f<\/span><\/strong><\/td>\n~360<\/span><\/td>\n~600<\/span><\/td>\n~200 HB<\/span><\/td>\n16%<\/span><\/td>\n<\/tr>\n
            Su verilmi\u015f ve temperlenmi\u015f<\/span><\/strong><\/td>\n500\u2013600+<\/span><\/td>\n700\u2013850+<\/span><\/td>\n22\u201355 HRC<\/span><\/td>\n12%<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

            Not:<\/span><\/strong> \u0130nd\u00fcksiyonla Sertle\u015ftirme, y\u00fczeyi 55 HRC'ye ula\u015facak kadar sertle\u015ftirebilir, ancak \u00e7ekirdek genellikle daha yumu\u015fakt\u0131r.<\/span><\/p>\n

            Fiziksel \u00d6zellikler<\/span><\/h3>\n
              \n
            • \n

              Yo\u011funluk:<\/span><\/strong> 7,85 g\/cm\u00b3<\/span><\/p>\n<\/li>\n

            • \n

              Elastik Mod\u00fcl:<\/span><\/strong> 206 GPa (Sertlik ne kadar s\u0131cak olursa olsun ayn\u0131 kal\u0131r).<\/span><\/p>\n<\/li>\n

            • \n

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

              45# \u00e7eli\u011fini \u0131s\u0131l i\u015flem uygulad\u0131\u011f\u0131n\u0131zda ne olur?<\/span><\/h2>\n

              45# \u00e7eli\u011fi i\u00e7in ana de\u011fer kald\u0131rac\u0131 \u0131s\u0131l i\u015flemdir.<\/span><\/p>\n

                \n
              1. \n

                Normalizasyon (Ar\u0131tma)<\/span><\/strong><\/p>\n

                  \n
                • \n

                  S\u00fcre\u00e7:<\/span><\/strong> Yakla\u015f\u0131k 840\u00b0C'ye \u0131s\u0131t\u0131n ve ard\u0131ndan havada so\u011futun.<\/span><\/p>\n<\/li>\n

                • \n

                  Ama\u00e7:<\/span><\/strong> D\u00f6vme sonras\u0131 tane boyutunu iyile\u015ftirin. \u0130\u015flemeye tutarl\u0131 bir ba\u015flang\u0131\u00e7 noktas\u0131 sa\u011flar.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                • \n

                  Su verme ve temperleme (daha g\u00fc\u00e7l\u00fc hale getirme)<\/span><\/strong><\/p>\n

                    \n
                  • \n

                    S\u00fcre\u00e7:<\/span><\/strong> Yakla\u015f\u0131k 840\u00b0C'ye \u0131s\u0131t\u0131n, su veya ya\u011fda so\u011futun ve ard\u0131ndan 500\u00b0C ila 600\u00b0C'de temperleyin.<\/span><\/p>\n<\/li>\n

                  • \n

                    Ama\u00e7:<\/span><\/strong> K\u00fctleyi daha g\u00fc\u00e7l\u00fc hale getirin. Su verme risklidir (\u00e7atlayabilir), ancak 45# i\u00e7in i\u015fe yarar. Ya\u011f daha g\u00fcvenlidir, ancak metali o kadar sert yapmaz.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                  • \n

                    \u0130nd\u00fcksiyonla sertle\u015ftirme (y\u00fczeyde a\u015f\u0131nma)<\/span><\/strong><\/p>\n

                      \n
                    • \n

                      S\u00fcre\u00e7:<\/span><\/strong> Y\u00fczeyi y\u00fcksek frekansla \u0131s\u0131t\u0131n, ard\u0131ndan so\u011futmak i\u00e7in su p\u00fcsk\u00fcrt\u00fcn.<\/span><\/p>\n<\/li>\n

                    • \n

                      Ama\u00e7:<\/span><\/strong> \u00c7ekirde\u011fi tok ve s\u00fcnek tutarken y\u00fczeyi sert ve a\u015f\u0131nmaya diren\u00e7li (50\u201355 HRC) hale getirin. D\u00fcz di\u015fliler ve miller i\u00e7in harikad\u0131r.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                      CNC \u0130\u015fleme ve \u0130\u015flenebilirlik K\u0131lavuzu<\/span><\/h2>\n

                      45# \u00e7eli\u011finden yap\u0131lm\u0131\u015f makineler G\u00fc\u00e7l\u00fcd\u00fcr, ancak 1018 gibi d\u00fc\u015f\u00fck karbonlu \u00e7elikler kadar g\u00fc\u00e7l\u00fc de\u011fildir.<\/span><\/p>\n

                      \u0130\u015flenebilirlik \u00f6zellikleri<\/span><\/h3>\n
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                      • \n

                        Normalle\u015ftirilmi\u015f:<\/span><\/strong> \u0130yi i\u015flenebilirlik (yakla\u015f\u0131k 55% derecesi). Perl\u0130t i\u00e7eri\u011fi tala\u015flar\u0131n olduk\u00e7a iyi k\u0131r\u0131lmas\u0131n\u0131 sa\u011flar.<\/span><\/p>\n<\/li>\n

                      • \n

                        S\u00f6nd\u00fcrme<\/span><\/strong> i\u015flenmesini \u00e7ok daha zor hale getirir. Sertle\u015ftirmeden sonra genellikle bitirme i\u015fleme veya ta\u015flama yap\u0131lmas\u0131 gerekir.<\/span><\/p>\n<\/li>\n<\/ul>\n

                        CNC Tavsiyesi<\/span><\/h3>\n
                          \n
                        • \n

                          Standart tak\u0131m<\/span><\/strong> kaplamal\u0131 karb\u00fcrd\u00fcr (TiCN\/AlTiN).<\/span><\/p>\n<\/li>\n

                        • \n

                          \u0130lerlemeler ve h\u0131zlar:<\/span><\/strong> \u00c7ok h\u0131zl\u0131 de\u011fil. Agresif ilerlemeler tala\u015flar\u0131n k\u0131r\u0131lmas\u0131na yard\u0131mc\u0131 olur.<\/span><\/p>\n<\/li>\n

                        • \n

                          Y\u00fczey \u0130\u015flemi:<\/span><\/strong> D\u00fc\u015f\u00fck karbonlu \u00e7elik gibi \u201cyap\u0131\u015fkan\u201d olmad\u0131\u011f\u0131 i\u00e7in harika y\u00fczeyler elde edilebilir (Ra 1,6 \u00b5m veya daha iyi).<\/span><\/p>\n<\/li>\n<\/ul>\n

                          Kaynaklanabilirli\u011fin ve Is\u0131dan Etkilenen B\u00f6lgenin (HAZ) Kontrol\u00fc<\/span><\/h2>\n

                          Uyar\u0131:<\/span><\/strong> 45# \u00e7eli\u011fi kaynaklanabilir, ancak kolayca boyun e\u011fmez.<\/span><\/p>\n

                          Kaynak Riski<\/span><\/h3>\n

                          %0,45% karbon i\u00e7eri\u011fi, h\u0131zla so\u011fudu\u011funda HAZ'da martenziti gevrekle\u015ftirir. Bu, so\u011fukta \u00e7atlaklara neden olur.<\/span><\/p>\n

                          Kaynak Prosed\u00fcr\u00fc \u015eartnamesinin (WPS) \u00d6nemli B\u00f6l\u00fcmleri<\/span><\/h3>\n
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                          • \n

                            \u00d6n Is\u0131tma:<\/span><\/strong> \u00c7ok \u00f6nemli. Kaynaktan \u00f6nce par\u00e7ay\u0131 150 ila 250 santigrat derece aras\u0131nda \u0131s\u0131tarak so\u011fuma s\u00fcrecini yava\u015flat\u0131n.<\/span><\/p>\n<\/li>\n

                          • \n

                            Par\u00e7ay\u0131 ge\u00e7i\u015fler aras\u0131nda s\u0131cak tutun.<\/span><\/p>\n<\/li>\n

                          • \n

                            Kaynak Sonras\u0131 Is\u0131l \u0130\u015flem (PWHT):<\/span><\/strong> Kullan\u0131m s\u0131ras\u0131nda kayna\u011f\u0131n \u00e7atlamas\u0131n\u0131 \u00f6nlemek i\u00e7in gerilim giderme veya temperleme yap\u0131lmas\u0131 \u015fiddetle tavsiye edilir.<\/span><\/p>\n<\/li>\n

                          • \n

                            Dolgu:<\/span><\/strong> D\u00fc\u015f\u00fck hidrojenli elektrotlar kullanmal\u0131s\u0131n\u0131z.<\/span><\/p>\n<\/li>\n<\/ul>\n

                            M\u00fchendisler i\u00e7in \u00e7\u0131kar\u0131m:<\/span><\/strong> Karma\u015f\u0131k bir \u00e7er\u00e7eve gibi yo\u011fun kaynakl\u0131 bir yap\u0131ysa, \u00e7atlama riskini azaltmak i\u00e7in 45# yerine Q235 veya Q345 (d\u00fc\u015f\u00fck ala\u015f\u0131ml\u0131) kullanmak isteyebilirsiniz.<\/span><\/p>\n

                            Di\u011fer Yayg\u0131n \u00c7eliklere K\u0131yasla 45# \u00c7eli\u011fini Se\u00e7me K\u0131lavuzu<\/span><\/h2>\n

                            Do\u011fru \u00e7eli\u011fi se\u00e7mek i\u00e7in mukavemet, maliyet ve i\u015flenme kolayl\u0131\u011f\u0131 aras\u0131nda bir denge bulman\u0131z gerekir.<\/span><\/p>\n

                            Tablo 4: 45# ile Di\u011fer Markalar\u0131n Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/span><\/strong><\/p>\n

                            \n\n\n\n\n\n\n\n\n\n
                            \u00d6zellik<\/span><\/td>\n45# (1045)<\/span><\/td>\nQ235 (Yumu\u015fak \u00c7elik)<\/span><\/td>\n4140 (Ala\u015f\u0131ml\u0131 \u00c7elik)<\/span><\/td>\n<\/tr>\n
                            Karbon<\/span><\/strong><\/td>\nOrta (0.45%)<\/span><\/td>\nD\u00fc\u015f\u00fck (<0.22%)<\/span><\/td>\nOrta (0.40%)<\/span><\/td>\n<\/tr>\n
                            G\u00fc\u00e7<\/span><\/strong><\/td>\nOrta ile Y\u00fcksek<\/span><\/td>\nD\u00fc\u015f\u00fck<\/span><\/td>\n\u00c7ok Y\u00fcksek<\/span><\/td>\n<\/tr>\n
                            Sertle\u015febilirlik<\/span><\/strong><\/td>\nY\u00fczey\/\u0130nce Kesit<\/span><\/td>\nYok<\/span><\/td>\nDerin\/Kal\u0131n Kesit<\/span><\/td>\n<\/tr>\n
                            Kaynaklanabilirlik<\/span><\/strong><\/td>\nUygun (\u00d6n Is\u0131tma)<\/span><\/td>\n\u0130yi<\/span><\/td>\nSert<\/span><\/td>\n<\/tr>\n
                            Maliyet<\/span><\/strong><\/td>\nD\u00fc\u015f\u00fck\/Orta<\/span><\/td>\nEn d\u00fc\u015f\u00fck<\/span><\/td>\nY\u00fcksek<\/span><\/td>\n<\/tr>\n
                            Tipik Kullan\u0131m<\/span><\/strong><\/td>\nMiller, di\u015fliler<\/span><\/td>\nBraketler, \u00e7er\u00e7eveler<\/span><\/td>\nA\u011f\u0131r Hizmet Akslar\u0131<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

                            Nas\u0131l Se\u00e7ilir<\/span><\/h3>\n
                              \n
                            • \n

                              Kullan\u0131m <\/span>45#<\/span><\/strong> daha g\u00fc\u00e7l\u00fc veya a\u015f\u0131nmaya daha iyi dayanabilen (sertle\u015ftirme) bir \u015feye ihtiyac\u0131n\u0131z varsa kullan\u0131n <\/span>Q235<\/span><\/strong> kaynak ve hareket etmeyen \u015feyler in\u015fa etmek i\u00e7in.<\/span><\/p>\n<\/li>\n

                            • \n

                              Par\u00e7a kal\u0131nsa (50 mm'den fazla) ve ba\u015ftan sona sert olmas\u0131 gerekiyorsa, kullan\u0131n <\/span>4140<\/span><\/strong>. 45# yaln\u0131zca y\u00fczeye yak\u0131n sertle\u015fir.<\/span><\/p>\n<\/li>\n<\/ul>\n

                              M\u00fchendislikte 45# \u00c7eli\u011finin Yayg\u0131n Kullan\u0131mlar\u0131<\/span><\/h2>\n

                              Makine end\u00fcstrisi en \u00e7ok 45#'ye g\u00fcvenir.<\/span><\/p>\n

                                \n
                              • \n

                                Hareket:<\/span><\/strong> Lineer miller, k\u0131lavuz \u00e7ubuklar ve miller.<\/span><\/p>\n<\/li>\n

                              • \n

                                G\u00fc\u00e7 aktar\u0131m\u0131:<\/span><\/strong> Di\u015fliler, zincir di\u015flileri, krank milleri ve biyel kollar\u0131.<\/span><\/p>\n<\/li>\n

                              • \n

                                Ba\u011flant\u0131 elemanlar\u0131:<\/span><\/strong> Y\u00fcksek mukavemetli c\u0131vatalar (S\u0131n\u0131f 8.8 e\u015fde\u011feri temel malzeme).<\/span><\/p>\n<\/li>\n

                              • \n

                                Aletler:<\/span><\/strong> fikst\u00fcrler, kal\u0131p setleri ve kal\u0131p tabanlar\u0131.<\/span><\/p>\n<\/li>\n

                              • \n

                                Hidrolik:<\/span><\/strong> Krom kaplama ve ind\u00fcksiyonla sertle\u015ftirilmi\u015f silindir milleri.<\/span><\/p>\n<\/li>\n<\/ul>\n

                                \u00d6zet\u2014M\u00fchendislerin \u00d6\u011frendikleri<\/span><\/h2>\n

                                45# \u00e7eli\u011fi, m\u00fchendislik i\u00e7in ucuz ve kullan\u0131\u015fl\u0131 bir malzemedir.<\/span><\/p>\n

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

                                  \n
                                • \n

                                  Ayarlanabilir:<\/span><\/strong> Yumu\u015fak (tavlanm\u0131\u015f) veya sert (su verilmi\u015f) olabilir.<\/span><\/p>\n<\/li>\n

                                • \n

                                  Y\u00fczeyden Sertle\u015ftirilebilir:<\/span><\/strong> \u0130nd\u00fcksiyonla sertle\u015ftirme i\u00e7in harikad\u0131r (yakla\u015f\u0131k 55 HRC).<\/span><\/p>\n<\/li>\n

                                • \n

                                  \u0130\u015flenebilir:<\/span><\/strong> Tak\u0131m \u00f6mr\u00fc ve y\u00fczey kalitesi her ikisi de iyidir.<\/span><\/p>\n<\/li>\n

                                • \n

                                  Kaynak yaparken dikkatli olun:<\/span><\/strong> \u00c7atlamay\u0131 \u00f6nlemek i\u00e7in \u00f6n \u0131s\u0131tma ve son \u0131s\u0131tma yapman\u0131z gerekir.<\/span><\/p>\n<\/li>\n<\/ul>\n

                                  M\u00fchendisler, \u0131s\u0131l i\u015flemin neler yapabilece\u011fini ve yapamayaca\u011f\u0131n\u0131 bildiklerinde, ala\u015f\u0131ml\u0131 \u00e7eliklere g\u00f6re \u00e7ok daha d\u00fc\u015f\u00fck maliyetle g\u00fc\u00e7l\u00fc, uzun \u00f6m\u00fcrl\u00fc mekanik par\u00e7alar \u00fcretebilirler.<\/span><\/p>\n

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

                                  S: 1045 \u00e7eli\u011fi 45# ile ayn\u0131 m\u0131?<\/span><\/strong>
                                  C: Evet. \u00c7al\u0131\u015fma \u015fekilleri a\u00e7\u0131s\u0131ndan ayn\u0131d\u0131rlar. \u00c7in GB standard\u0131 45#, Amerikan AISI\/SAE standard\u0131 ise 1045'tir. Her ikisi de yakla\u015f\u0131k 0.45% karbon i\u00e7eren \u00e7eliklerdir.<\/span><\/p>\n

                                  S: 45# \u00e7eli\u011fi paslan\u0131r m\u0131?<\/span><\/strong>
                                  C: Evet. \u0130\u00e7inde krom bulunmayan basit bir karbon \u00e7eli\u011fidir. Ya\u011f, boya, kaplama veya siyah oksit ile korunmas\u0131 gerekir.<\/span><\/p>\n

                                  S: 45# \u00e7eli\u011fini kaynaklamak m\u00fcmk\u00fcn m\u00fc?<\/span><\/strong>
                                  C: Evet, ancak \u00e7atlamay\u0131 \u00f6nlemek i\u00e7in \u00f6nce \u0131s\u0131tman\u0131z gerekir. Q235 veya 1018 kadar iyi kaynaklanmaz.<\/span><\/p>\n

                                  C: 45# \u00e7eli\u011fi ne kadar sertle\u015febilir?<\/span><\/strong>
                                  C: Su verme ile y\u00fczeyde yakla\u015f\u0131k 55 HRC'ye ula\u015fabilir. \u00d6te yandan, kal\u0131n par\u00e7alar\u0131n \u00e7ekirde\u011fi iyi sertle\u015fmedi\u011fi i\u00e7in daha yumu\u015fak kalacakt\u0131r.<\/span><\/p>\n

                                  S: 45# yerine ne zaman 4140 kullanmal\u0131y\u0131m?<\/span><\/strong>
                                  C: Kal\u0131n bir kesitin ba\u015ftan sona \u00e7ok g\u00fc\u00e7l\u00fc olmas\u0131 gerekti\u011finde (tamamen sertle\u015ftirme) veya par\u00e7a \u00e7ok fazla gerilim veya darbe alt\u0131nda kalacaksa 4140 kullan\u0131n. 4140 daha g\u00fc\u00e7l\u00fc ve daha tok, ancak daha pahal\u0131d\u0131r.<\/span><\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

                                  Makine m\u00fchendisli\u011finde 45# \u00e7eli\u011fi en iyi orta karbonlu \u00e7eliktir. D\u00fcnya genelinde AISI 1045, C45 veya S45C olarak da bilinir.<\/p>","protected":false},"author":1,"featured_media":9629,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[103],"tags":[],"class_list":["post-9468","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-guide"],"yoast_head":"\n45# Steel (C45 \/ 1045 \/ S45C): Properties & Applications<\/title>\n<meta name=\"description\" content=\"Learn 45# steel (C45 \/ 1045 \/ S45C) chemical composition, mechanical properties, heat treatment potential, and common engineering applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cncmachiningshops.com\/tr\/45-steel\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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