{"id":3279,"date":"2026-09-15T22:28:58","date_gmt":"2026-09-15T19:28:58","guid":{"rendered":"https:\/\/www.defencemetal.com\/index.php\/2026\/09\/15\/aisi-4140-h11-farki\/"},"modified":"2026-09-15T23:53:46","modified_gmt":"2026-09-15T20:53:46","slug":"aisi-4140-h11-farki","status":"publish","type":"post","link":"https:\/\/www.defencemetal.com\/index.php\/2026\/09\/15\/aisi-4140-h11-farki\/","title":{"rendered":"AISI 4140 ile H11 Aras\u0131ndaki Fark Nedir?"},"content":{"rendered":"

AISI 4140<\/strong> ile H11<\/strong> karbon oran\u0131 bak\u0131m\u0131ndan birbirine \u00e7ok benzer \u2014 ikisinde de karbon %0,40 civar\u0131ndad\u0131r. Buna ra\u011fmen farkl\u0131 s\u0131n\u0131flara aittirler: 4140 bir \u0131slah \u00e7eli\u011fi<\/strong>, H11 ise bir s\u0131cak i\u015f tak\u0131m \u00e7eli\u011fidir<\/strong>. Ayr\u0131m\u0131 yapan element kromdur.<\/p>\n

%1 krom ile %5 krom<\/h3>\n

AISI 4140’ta krom %1,00<\/strong>, molibden %0,25 seviyesindedir. H11’de krom %5,00<\/strong>‘e \u00e7\u0131kar, molibden %1,30’a y\u00fckselir ve bile\u015fime %0,50 vanadyum<\/strong> eklenir. Silisyum da %0,25’ten %0,90’a \u00e7\u0131kar.<\/p>\n

Bu bile\u015fim, H11’e temperleme direnci<\/strong> kazand\u0131r\u0131r: par\u00e7a y\u00fcksek s\u0131cakl\u0131kta \u00e7al\u0131\u015f\u0131rken sertli\u011fini kaybetmez. 4140 ise \u0131s\u0131nd\u0131k\u00e7a yumu\u015far. Oda s\u0131cakl\u0131\u011f\u0131ndaki de\u011ferlerde bile fark b\u00fcy\u00fckt\u00fcr \u2014 veri sayfalar\u0131m\u0131za g\u00f6re H11 sertle\u015ftirilip temperlendi\u011finde 1793 MPa<\/strong> \u00e7ekme dayan\u0131m\u0131 verirken, AISI 4140 50 mm kesitte 930 MPa<\/strong> seviyesindedir.<\/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
\u00d6ZELL\u0130K<\/th>\nAISI 4140<\/th>\nH11<\/th>\n<\/tr>\n<\/thead>\n
Karbon (C)<\/td>\n%0,40<\/td>\n%0,40<\/td>\n<\/tr>\n
Krom (Cr)<\/td>\n%1,00<\/td>\n%5,00<\/td>\n<\/tr>\n
Molibden (Mo)<\/td>\n%0,25<\/td>\n%1,30<\/td>\n<\/tr>\n
Vanadyum (V)<\/td>\n\u2014<\/td>\n%0,50<\/td>\n<\/tr>\n
Silisyum (Si)<\/td>\n%0,25<\/td>\n%0,90<\/td>\n<\/tr>\n
Mangan (Mn)<\/td>\n%0,85<\/td>\n%0,30<\/td>\n<\/tr>\n
\u00c7ekme dayan\u0131m\u0131 Rm<\/td>\n930 MPa (50 mm kesit)<\/td>\n1793 MPa<\/td>\n<\/tr>\n
Akma Rp0,2<\/td>\n770 MPa (50 mm kesit)<\/td>\n1482 MPa<\/td>\n<\/tr>\n
Uzama<\/td>\n%17 (50 mm kesit)<\/td>\n%8<\/td>\n<\/tr>\n
Kesit daralmas\u0131<\/td>\n\u2014<\/td>\n%30<\/td>\n<\/tr>\n
UNS<\/td>\nG41400<\/td>\n\u2014<\/td>\n<\/tr>\n
AMS<\/td>\n6349 \u00b7 6382<\/td>\n6485 \u00b7 6487<\/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

AISI 4140 tercih edilir<\/strong> \u2014 miller, di\u015fli g\u00f6vdeleri, ba\u011flant\u0131 elemanlar\u0131, hidrolik par\u00e7alar\u0131, genel makine imalat\u0131. Oda s\u0131cakl\u0131\u011f\u0131nda \u00e7al\u0131\u015fan, orta mukavemet isteyen her yerde ilk akla gelen \u00e7eliktir; temini ve i\u015flenmesi kolayd\u0131r.<\/p>\n

H11 gerekir<\/strong> \u2014 s\u0131cak d\u00f6vme kal\u0131plar\u0131, ekstr\u00fczyon kal\u0131plar\u0131, d\u00f6k\u00fcm kal\u0131p elemanlar\u0131 ve y\u00fcksek s\u0131cakl\u0131kta y\u00fck ta\u015f\u0131yan havac\u0131l\u0131k par\u00e7alar\u0131. \u015eartname AMS 6485<\/strong> veya AMS 6487<\/strong> \u00e7a\u011f\u0131r\u0131yorsa aranan kalite H11’dir; 4140 ile ikame edilmez.<\/p>\n

Kom\u015fu ala\u015f\u0131mlar<\/h3>\n

4140’\u0131n bir \u00fcst basama\u011f\u0131 i\u00e7in AISI 4140 \u2013 AISI 4340 kar\u015f\u0131la\u015ft\u0131rmam\u0131za<\/a>, oda s\u0131cakl\u0131\u011f\u0131nda \u00e7ok daha y\u00fcksek mukavemet i\u00e7in 300M<\/a> ve AerMet 100<\/a> sayfalar\u0131na bakabilirsiniz.<\/p>\n

\n

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

AISI 4140 \u2014 kimyasal bile\u015fim, mekanik de\u011ferler, standart kar\u015f\u0131l\u0131klar\u0131<\/a><\/p>\n

H11 \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":"

AISI 4140 bir \u0131slah \u00e7eli\u011fi, H11 ise %5 kromlu s\u0131cak i\u015f tak\u0131m \u00e7eli\u011fidir. S\u0131cakta \u00e7al\u0131\u015fan par\u00e7alarda fark belirginle\u015fir.<\/p>\n","protected":false},"author":1,"featured_media":3278,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3279","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-karsilastirmalar"],"yoast_head":"\nAISI 4140 ile H11 Fark\u0131 Nedir? | Defence Metal<\/title>\n<meta name=\"description\" content=\"AISI 4140 \u0131slah \u00e7eli\u011fi, H11 ise s\u0131cak i\u015f tak\u0131m \u00e7eli\u011fidir. 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