{"id":3513,"date":"2026-09-16T00:41:58","date_gmt":"2026-09-15T21:41:58","guid":{"rendered":"https:\/\/www.defencemetal.com\/index.php\/2026\/09\/16\/ti-grade-5-aisi-4340-farki\/"},"modified":"2026-09-16T00:42:01","modified_gmt":"2026-09-15T21:42:01","slug":"ti-grade-5-aisi-4340-farki","status":"publish","type":"post","link":"https:\/\/www.defencemetal.com\/index.php\/2026\/09\/16\/ti-grade-5-aisi-4340-farki\/","title":{"rendered":"Ti Grade 5 ile AISI 4340 Aras\u0131ndaki Fark Nedir?"},"content":{"rendered":"

Ti Grade 5<\/strong> (Ti6Al4V) ve AISI 4340<\/strong>, havac\u0131l\u0131k ve savunma projelerinde ayn\u0131 par\u00e7a i\u00e7in s\u0131k s\u0131k kar\u015f\u0131 kar\u015f\u0131ya gelir. Biri titanyum ala\u015f\u0131m\u0131, di\u011feri ala\u015f\u0131ml\u0131 \u00e7elik \u2014 dolay\u0131s\u0131yla kar\u015f\u0131la\u015ft\u0131rma kimyasal de\u011fil, m\u00fchendislik tercihi<\/strong> d\u00fczeyinde yap\u0131l\u0131r.<\/p>\n

Mukavemet mi, \u00f6zg\u00fcl mukavemet mi?<\/h3>\n

Mutlak mukavemette AISI 4340 \u00f6ndedir: veri sayfalar\u0131m\u0131za g\u00f6re sertle\u015ftirilip temperlendi\u011finde \u00e7ekme dayan\u0131m\u0131 1793 MPa<\/strong>, akma dayan\u0131m\u0131 1496 MPa<\/strong>‘d\u0131r. Ti Grade 5’te bu de\u011ferler \u2265895<\/strong> ve \u2265830 N\/mm\u00b2<\/strong>.<\/p>\n

Ancak yo\u011funluklar \u00e7ok farkl\u0131d\u0131r. Ti Grade 5’in yo\u011funlu\u011fu \u22654,43 g\/cm\u00b3<\/strong>, \u00e7eli\u011finki ise yakla\u015f\u0131k 7,85 g\/cm\u00b3 \u2014 yani titanyum yar\u0131 a\u011f\u0131rl\u0131ktad\u0131r<\/strong>. A\u011f\u0131rl\u0131k ba\u015f\u0131na mukavemet (\u00f6zg\u00fcl mukavemet) hesaba kat\u0131ld\u0131\u011f\u0131nda iki malzeme birbirine \u00e7ok yakla\u015f\u0131r, baz\u0131 tasar\u0131m senaryolar\u0131nda titanyum \u00f6ne ge\u00e7er.<\/p>\n

Belirleyici as\u0131l fark ba\u015fka yerdedir: korozyon<\/strong>. AISI 4340 paslan\u0131r; kaplama, boya veya kadmiyum\/\u00e7inko korumas\u0131 gerektirir. Ti Grade 5 deniz suyunda, tuzlu havada ve pek \u00e7ok kimyasalda kaplamas\u0131z kullan\u0131labilir. Buna kar\u015f\u0131l\u0131k titanyumun elastisite mod\u00fcl\u00fc \u00e7ok daha d\u00fc\u015f\u00fckt\u00fcr (114 kN\/mm\u00b2<\/strong>‘ye kar\u015f\u0131 \u00e7eli\u011fin ~205 GPa’s\u0131), yani ayn\u0131 y\u00fck alt\u0131nda iki kat daha fazla e\u011filir \u2014 rijitlik kritikse bu ciddi bir k\u0131s\u0131tt\u0131r.<\/p>\n

Son olarak maliyet ve \u00fcretim: titanyum belirgin \u015fekilde pahal\u0131d\u0131r, tala\u015fl\u0131 imalat\u0131 yava\u015ft\u0131r ve kaynak koruyucu gaz ortam\u0131 ister. 4340 ise her at\u00f6lyede i\u015flenip \u0131s\u0131l i\u015flem g\u00f6rebilir.<\/p>\n

Rakamlarla kar\u015f\u0131la\u015ft\u0131rma<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00d6ZELL\u0130K<\/th>\nTi Grade 5 (Ti6Al4V)<\/th>\nAISI 4340<\/th>\n<\/tr>\n<\/thead>\n
Malzeme s\u0131n\u0131f\u0131<\/td>\nTitanyum ala\u015f\u0131m\u0131<\/td>\nAla\u015f\u0131ml\u0131 \u00e7elik<\/td>\n<\/tr>\n
Ana elementler<\/td>\n%5,50\u20136,75 Al \u00b7 %3,50\u20134,50 V<\/td>\n%1,65\u20132,00 Ni \u00b7 %0,70\u20130,90 Cr \u00b7 %0,20\u20130,30 Mo<\/td>\n<\/tr>\n
Karbon (C)<\/td>\n\u2264 %0,08<\/td>\n%0,38 \u2013 0,43<\/td>\n<\/tr>\n
\u00c7ekme dayan\u0131m\u0131 Rm<\/td>\n\u2265 895 N\/mm\u00b2<\/td>\n1793 MPa<\/td>\n<\/tr>\n
Akma Rp0,2<\/td>\n\u2265 830 N\/mm\u00b2<\/td>\n1496 MPa<\/td>\n<\/tr>\n
Uzama<\/td>\n\u2265 %10<\/td>\n%10<\/td>\n<\/tr>\n
Sertlik<\/td>\n\u2265 310 HB<\/td>\n\u2014<\/td>\n<\/tr>\n
Yo\u011funluk<\/td>\n\u2265 4,43 g\/cm\u00b3<\/td>\n~7,85 g\/cm\u00b3<\/td>\n<\/tr>\n
Elastisite mod\u00fcl\u00fc<\/td>\n114 kN\/mm\u00b2<\/td>\n~205 GPa<\/td>\n<\/tr>\n
Korozyon direnci<\/td>\nKaplamas\u0131z deniz suyuna dayan\u0131kl\u0131<\/td>\nKaplama\/boya gerekir<\/td>\n<\/tr>\n
Is\u0131l iletkenlik<\/td>\n\u2265 7,1 W\/m\u00b7K<\/td>\n\u2014<\/td>\n<\/tr>\n
UNS<\/td>\nR56400<\/td>\nG43406<\/td>\n<\/tr>\n
AMS<\/td>\n4928 \u00b7 4911<\/td>\n6414 \u00b7 6415 \u00b7 6484<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

De\u011ferler \u00fcr\u00fcn veri sayfalar\u0131m\u0131zdan al\u0131nm\u0131\u015ft\u0131r; kesit kal\u0131nl\u0131\u011f\u0131 ve uygulanan \u0131s\u0131l i\u015flem rejimi sonucu de\u011fi\u015ftirir.<\/p>\n

Hangi durumda hangisi?<\/h3>\n

Ti Grade 5 gerekir<\/strong> \u2014 a\u011f\u0131rl\u0131\u011f\u0131n do\u011frudan performansa d\u00f6nd\u00fc\u011f\u00fc u\u00e7ak ve uzay yap\u0131lar\u0131, deniz ve offshore ekipman\u0131, kaplama yap\u0131lamayacak korozif ortamlar, t\u0131bbi ve protez uygulamalar\u0131, manyetik olmamas\u0131 gereken par\u00e7alar.<\/p>\n

AISI 4340 gerekir<\/strong> \u2014 ini\u015f tak\u0131m\u0131 ve \u015faft grubu gibi y\u00fcksek mutlak mukavemet ve rijitlik isteyen par\u00e7alar, di\u015fli ve mil uygulamalar\u0131, a\u011f\u0131rl\u0131\u011f\u0131n kritik olmad\u0131\u011f\u0131 ve maliyetin \u00f6ne \u00e7\u0131kt\u0131\u011f\u0131 her yer. \u015eartname AMS 6414<\/strong> veya AMS 6415<\/strong> \u00e7a\u011f\u0131r\u0131yorsa titanyum ikamesi s\u00f6z konusu de\u011fildir.<\/p>\n

Pratik kural: a\u011f\u0131rl\u0131k ve korozyon \u2192 titanyum; rijitlik, mutlak mukavemet ve maliyet \u2192 4340<\/strong>.<\/p>\n

Kom\u015fu malzemeler<\/h3>\n

4340’\u0131n \u00fcst basamaklar\u0131 i\u00e7in AISI 4340 \u2013 300M<\/a> ve 300M \u2013 AerMet 100<\/a> kar\u015f\u0131la\u015ft\u0131rmalar\u0131m\u0131za, titanyum taraf\u0131 i\u00e7in Ti Grade 2 \u2013 Grade 5 yaz\u0131m\u0131za<\/a> bakabilirsiniz.<\/p>\n

\n

Teknik veri sayfalar\u0131<\/p>\n

Ti Grade 5 \u2014 kimyasal bile\u015fim, mekanik de\u011ferler, standart kar\u015f\u0131l\u0131klar\u0131<\/a><\/p>\n

AISI 4340 \u2014 kimyasal bile\u015fim, mekanik de\u011ferler, standart kar\u015f\u0131l\u0131klar\u0131<\/a><\/p>\n

Her iki kalite de yuvarlak \u00e7ubuk, lama, levha, sac, boru ve d\u00f6vme formlar\u0131nda sipari\u015f bazl\u0131 temin edilmektedir. Teklif i\u00e7in bize ula\u015f\u0131n<\/a>.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Ti Grade 5 yar\u0131 yo\u011funlukta ve korozyona dayan\u0131kl\u0131d\u0131r; AISI 4340 daha mukavemetli ve \u00e7ok daha ekonomiktir.<\/p>\n","protected":false},"author":1,"featured_media":3512,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3513","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-karsilastirmalar"],"yoast_head":"\nTi Grade 5 ile AISI 4340 Fark\u0131 | Defence Metal<\/title>\n<meta name=\"description\" content=\"Titanyum Grade 5 ve AISI 4340 aras\u0131ndaki se\u00e7im a\u011f\u0131rl\u0131k, korozyon ve maliyet dengesine ba\u011fl\u0131d\u0131r. \u00d6zg\u00fcl mukavemet kar\u015f\u0131la\u015ft\u0131rmas\u0131 ve kullan\u0131m alanlar\u0131.\" \/>\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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