{"id":6213,"date":"2026-09-25T19:52:47","date_gmt":"2026-09-25T16:52:47","guid":{"rendered":"https:\/\/www.defencemetal.com\/index.php\/2026\/09\/25\/aisi-431-aisi-410-farki\/"},"modified":"2026-09-30T10:44:10","modified_gmt":"2026-09-30T07:44:10","slug":"aisi-431-aisi-410-farki","status":"publish","type":"post","link":"https:\/\/www.defencemetal.com\/index.php\/2026\/09\/25\/aisi-431-aisi-410-farki\/","title":{"rendered":"AISI 431 ile AISI 410 Aras\u0131ndaki Fark Nedir?"},"content":{"rendered":"

AISI 431<\/strong> ve AISI 410<\/strong> ikisi de martenzitik paslanmaz \u00e7eliktir, ikisi de su verilerek sertle\u015fir. Fark, 431’in belirgin \u015fekilde daha y\u00fcksek kromu ve ilave nikelidir<\/strong> — bu da onu geleneksel martenzitik ailenin korozyona en dayan\u0131kl\u0131 \u00fcyesi yapar.<\/p>\n

Krom ve nikel fark\u0131<\/h3>\n

AISI 410’un kromu %11,50 – 13,50 aras\u0131ndad\u0131r ve nikel bir safs\u0131zl\u0131kt\u0131r (max %0,75). AISI 431’de krom %15,00 – 17,00<\/strong>‘ye \u00e7\u0131kar ve nikel \u015fartnameye girer. Sonu\u00e7, deniz atmosferine dayanabilen bir martenzitik \u00e7eliktir.<\/p>\n

Carpenter Technology, BGH Edelstahlwerke, Deutsche Edelstahlwerke ve Universal Stainless — d\u00f6rt ayr\u0131 kurulu\u015f — 431’i sertle\u015febilen 400 serisi i\u00e7inde korozyon direnci en iyi kalite olarak tan\u0131ml\u0131yor ve deniz atmosferi uygulamalar\u0131na uygun buluyor.<\/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>\nAISI 431 (1.4057)<\/th>\nAISI 410 (1.4006)<\/th>\n<\/tr>\n<\/thead>\n
Krom (Cr)<\/strong><\/td>\n%15,00 – 17,00<\/strong><\/td>\n%11,50 – 13,50<\/strong><\/td>\n<\/tr>\n
Silisyum (Si)<\/td>\nmax %1,00<\/td>\nmax %1,00<\/td>\n<\/tr>\n
Fosfor (P)<\/td>\nmax %0,040<\/td>\nmax %0,040<\/td>\n<\/tr>\n
K\u00fck\u00fcrt (S)<\/td>\nmax %0,030<\/td>\nmax %0,030<\/td>\n<\/tr>\n
Nikel (Ni)<\/td>\nbkz. a\u015fa\u011f\u0131daki not<\/td>\nmax %0,75<\/td>\n<\/tr>\n
Karbon (C)<\/td>\nbkz. a\u015fa\u011f\u0131daki not<\/td>\n%0,08 – 0,15<\/td>\n<\/tr>\n
Akma (Rp0,2), +QT800<\/td>\n\u2265 600 MPa<\/td>\n—<\/td>\n<\/tr>\n
Akma (Rp0,2), +QT900<\/td>\n\u2265 700 MPa<\/td>\n—<\/td>\n<\/tr>\n
Akma (Rp0,2), +QT650<\/td>\n—<\/td>\n\u2265 450 MPa<\/td>\n<\/tr>\n
\u00c7ekme (Rm), +QT650<\/td>\n—<\/td>\n650 – 850 MPa<\/td>\n<\/tr>\n
Tavl\u0131 sertlik<\/td>\n\u2264 295 HBW<\/td>\n—<\/td>\n<\/tr>\n
Sertle\u015ftirme s\u0131cakl\u0131\u011f\u0131<\/td>\n950 – 1060 °C, ya\u011fda<\/td>\n950 – 1010 °C<\/td>\n<\/tr>\n
Yumu\u015fatma tav\u0131<\/td>\n680 – 800 °C<\/td>\n—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Nikel notu:<\/em> ASTM A276 ve Carpenter %1,25 – 2,50 veriyor; BGH, Deutsche Edelstahlwerke ve Rodacciai %1,50 – 2,50 veriyor. Karbon notu:<\/em> ASTM A276, Carpenter ve BGH max %0,20 (alt s\u0131n\u0131r yok) diyor; Deutsche Edelstahlwerke ve Rodacciai ise EN 10088-3 i\u00e7in %0,12 – 0,22 aral\u0131\u011f\u0131 veriyor. Bu iki sat\u0131r\u0131 tek bir de\u011fere indirmiyoruz — kaynaklar ger\u00e7ekten ayr\u0131\u015f\u0131yor.<\/p>\n

Sipari\u015f verirken dikkat — iki ciddi tuzak<\/h3>\n
\n

ASTM A276’ya g\u00f6re “431” sipari\u015finin mukavemet garantisi yoktur.<\/p>\n

ASTM A276, Tip 431 i\u00e7in Durum T veya H’de hi\u00e7bir \u00e7ekme dayan\u0131m\u0131 \u015fart\u0131 tablolamaz<\/strong>; yaln\u0131zca Durum A (tavl\u0131) sertlik s\u0131n\u0131r\u0131 verir. Yani “A276’ya g\u00f6re 431” yazan bir sipari\u015f, mukavemet a\u00e7\u0131s\u0131ndan bo\u015ftur. \u0130stedi\u011finiz mukavemeti ayr\u0131ca \u015fartnameye yaz\u0131n veya havac\u0131l\u0131k \u015fartnamesi \u00fczerinden sipari\u015f edin.<\/p>\n<\/div>\n

\n

ASTM 431 ile EN 1.4057 ayn\u0131 kimya de\u011fildir.<\/p>\n

Karbonda ASTM alt s\u0131n\u0131r koymaz; EN %0,12 alt s\u0131n\u0131r koyar. %0,05 karbonlu bir \u00e7ubuk ASTM 431’i kar\u015f\u0131layabilir ama 1.4057’yi kar\u015f\u0131lamaz.<\/strong> Nikelde de alt s\u0131n\u0131r farkl\u0131d\u0131r. Her iki \u015fartnameyi birden kar\u015f\u0131lamas\u0131 gerekiyorsa karbon %0,12–0,20, nikel %1,50–2,50 aral\u0131\u011f\u0131 s\u00f6zle\u015fmeye yaz\u0131lmal\u0131d\u0131r.<\/p>\n<\/div>\n

Temperlemede ka\u00e7\u0131n\u0131lacak b\u00f6lge<\/h3>\n

Her iki \u00e7elikte de belirli bir temperleme aral\u0131\u011f\u0131 toklu\u011fu ve korozyon direncini d\u00fc\u015f\u00fcr\u00fcr. Carpenter, 431 i\u00e7in 371 – 565 °C aral\u0131\u011f\u0131n\u0131; 410 i\u00e7in 399 – 566 °C aral\u0131\u011f\u0131n\u0131 i\u015faret ediyor. Deutsche Edelstahlwerke ayr\u0131ca 1.4057’nin 475 °C k\u0131r\u0131lganl\u0131\u011f\u0131na<\/strong> yatk\u0131n oldu\u011funu ve 420 – 520 °C’den ka\u00e7\u0131n\u0131lmas\u0131 gerekti\u011fini belirtiyor.<\/p>\n

Kaynak konusunda kaynaklar ayr\u0131\u015f\u0131yor: Carpenter 431 i\u00e7in 204 – 316 °C \u00f6n \u0131s\u0131tma ve 649 °C kaynak sonras\u0131 \u0131s\u0131l i\u015flem \u015fart ko\u015farken, Deutsche Edelstahlwerke 1.4057’nin kaynak kabiliyetini “iyi” olarak niteliyor. Tek bir h\u00fck\u00fcm vermiyoruz; kaynakl\u0131 imalat d\u00fc\u015f\u00fcn\u00fcyorsan\u0131z prosed\u00fcr\u00fc malzeme tedarik\u00e7inizle birlikte belirleyin.<\/p>\n

Nerede kullan\u0131l\u0131r?<\/h3>\n

AISI 431:<\/strong> u\u00e7ak ba\u011flant\u0131 elemanlar\u0131 ve fitingleri, pompa milleri, vana milleri, piston kollar\u0131, deniz ortam\u0131nda \u00e7al\u0131\u015fan yap\u0131sal par\u00e7alar.<\/p>\n

AISI 410:<\/strong> t\u00fcrbin kanatlar\u0131, vanalar, pompalar, s\u00fcrg\u00fcl\u00fc vanalar, ba\u011flant\u0131 elemanlar\u0131, petrokimya i\u00e7 aksam\u0131, \u00e7atal-b\u0131\u00e7ak.<\/p>\n

\u00d6zetle: mukavemet ikisinde de vard\u0131r, ortam korozifse 431’e \u00e7\u0131k\u0131l\u0131r.<\/strong><\/p>\n

G\u00f6sterimler, standartlar ve AMS kar\u015f\u0131l\u0131klar\u0131<\/h3>\n

Ayn\u0131 \u00e7elik, hangi sistemde konu\u015ftu\u011funuza g\u00f6re farkl\u0131 isimle an\u0131l\u0131r. Sipari\u015f ve sertifika kar\u0131\u015f\u0131kl\u0131klar\u0131n\u0131n \u00e7o\u011fu buradan \u00e7\u0131kar, o y\u00fczden k\u0131saca \u00f6zetleyelim:<\/p>\n