{"id":2141,"date":"2021-05-07T12:26:20","date_gmt":"2021-05-07T12:26:20","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2141"},"modified":"2021-05-07T12:27:07","modified_gmt":"2021-05-07T12:27:07","slug":"whats-super304h-steel","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/tr\/whats-super304h-steel\/","title":{"rendered":"S\u00fcper 304H \u00e7eli\u011fi nedir?"},"content":{"rendered":"<p>Ultra s\u00fcperkritik \u00fcnitelerin geli\u015fmesiyle birlikte, geleneksel 18-8 \u00d6stenitik paslanmaz \u00e7eliklerin (TP304H \u00e7eli\u011fi gibi) y\u00fcksek s\u0131cakl\u0131k dayan\u0131m\u0131, 600\u00b0C&#039;lik buhar parametreleriyle ihtiya\u00e7lar\u0131n\u0131 kar\u015f\u0131layamaz hale geldi. Bu nedenle Japonya Sumitomo Metal Corporation, \u00fcnitenin kazan \u0131s\u0131tma y\u00fczeyi boru hatt\u0131 i\u00e7in TP347HFG \u00e7eli\u011fi, SUPER304H \u00e7eli\u011fi ve HR3C \u00e7eli\u011fi gibi yeni malzemeler geli\u015ftirdi. S\u00fcper 304H \u00e7elik yeni bir t\u00fcr <a href=\"https:\/\/wldstainless.com\/materials\/austenitic-stainless-steel\/304-304l-stainless-steel\/\">18-8 \u00e7elik<\/a>, esas olarak metal duvar s\u0131cakl\u0131\u011f\u0131 700 \u00b0 C&#039;yi a\u015fmayan ultra s\u00fcperkritik kazanlar\u0131n k\u0131zd\u0131r\u0131c\u0131 ve yeniden \u0131s\u0131t\u0131c\u0131lar\u0131n\u0131n imalat\u0131nda kullan\u0131l\u0131r. \u015eu anda Almanya&#039;daki Shasqida Mannesmann (eski ad\u0131yla DMV \u015eirketi) de DMV 304HCU kalitesinde benzer \u00e7elik borular \u00fcretiyor.<\/p>\n<p>Super304H \u00e7eli\u011fi, 2.5% ~ 3.5% Cu ve 0.30%~0.60% Nb ve 0.05%~0.12% N ekleyen TP304H \u00e7eli\u011fine dayal\u0131 Mn, Si, Cr ve Ni i\u00e7eri\u011fini azaltan \u00e7eliktir, b\u00f6ylece Hizmette dif\u00fczyon \u00e7\u00f6keltme faz\u0131n\u0131 ve bak\u0131r a\u00e7\u0131s\u0131ndan zengin g\u00fc\u00e7lendirilmi\u015f faz\u0131 \u00fcretmek i\u00e7in, NbC(N), NbCrN ve M23C6 ile \u00e7\u00f6kelme g\u00fc\u00e7lendirmesi meydana gelir, bu da servis s\u0131cakl\u0131\u011f\u0131nda izin verilen gerilimi b\u00fcy\u00fck \u00f6l\u00e7\u00fcde art\u0131r\u0131r ve 600 ~ 650 \u00b0 C&#039;de izin verilen gerilim 30% daha y\u00fcksektir TP347H \u00e7eli\u011finden daha fazlad\u0131r. \u00c7eli\u011fin buhar oksidasyon direnci, TP347HFG \u00e7eli\u011fininkiyle kar\u015f\u0131la\u015ft\u0131r\u0131labilir ve TP321H \u00e7eli\u011fininkinden \u00f6nemli \u00f6l\u00e7\u00fcde daha iyidir. ASME Code Case 2328-1, ASTM A-213 Standard\u0131nda listelenmi\u015ftir, numaras\u0131 S30432&#039;dir.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>S\u00fcper 304H&#039;nin Kimyasal Bile\u015fimi<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"60\">C<\/td>\n<td width=\"60\">Si<\/td>\n<td width=\"60\">Mn<\/td>\n<td width=\"60\">P<\/td>\n<td width=\"60\">S<\/td>\n<td width=\"60\">CR<\/td>\n<td width=\"60\">Ni<\/td>\n<td width=\"60\">N<\/td>\n<td width=\"60\">Al<\/td>\n<td width=\"60\">B<\/td>\n<td width=\"60\">Not<\/td>\n<td width=\"60\">Cu<\/td>\n<td width=\"60\">V<\/td>\n<td width=\"60\">Ay<\/td>\n<\/tr>\n<tr>\n<td width=\"60\">0.08<\/td>\n<td width=\"60\">0.21<\/td>\n<td width=\"60\">0.79<\/td>\n<td width=\"60\">0.03<\/td>\n<td width=\"60\">0.001<\/td>\n<td width=\"60\">18.42<\/td>\n<td width=\"60\">8.66<\/td>\n<td width=\"60\">0.11<\/td>\n<td width=\"60\">0.007<\/td>\n<td width=\"60\">0.004<\/td>\n<td width=\"60\">0.5<\/td>\n<td width=\"60\">2.77<\/td>\n<td width=\"60\">0.04<\/td>\n<td width=\"60\">0.35<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Super 304H&#039;nin Mekanik \u00d6zelli\u011fi<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"284\">Akma dayan\u0131m\u0131, Mpa<\/td>\n<td width=\"284\">\u00c7ekme mukavemeti, Mpa<\/td>\n<td width=\"284\">Uzama, %<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">360\/350<\/td>\n<td width=\"284\">640\/645<\/td>\n<td width=\"284\">58\/60<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Ultra s\u00fcperkritik \u00fcnitelerin y\u00fcksek buhar parametreleri nedeniyle, enerji santrallerinin y\u00fcksek s\u0131cakl\u0131k bas\u0131n\u00e7l\u0131 k\u0131s\u0131mlar\u0131nda kullan\u0131lan \u00e7eli\u011fin oksidasyon direnci \u00e7ok \u00f6nemli hale gelmektedir. Genel olarak s\u00fcper 304H \u00e7elik borunun i\u00e7 duvar\u0131, buhar \u00f6nleyici oksidasyon performans\u0131n\u0131 art\u0131rmak i\u00e7in kumlama i\u015flemine tabi tutulur. \u00c7elik borunun i\u00e7 y\u00fczeyinde 30\u03bcm kal\u0131nl\u0131\u011f\u0131nda bir bilyeli kumlama tabakas\u0131 olu\u015fturuldu ve mikro yap\u0131s\u0131, bilyeli d\u00f6vmesiz \u00e7elik borununkine k\u0131yasla daha iyi hale getirildi. 650\u00b0C ve 600 saatte yap\u0131lan buhar oksidasyon testinden sonra, kumlamayla i\u015flenen \u00e7elik borunun oksit tabakas\u0131 kal\u0131nl\u0131\u011f\u0131 daha ince ve daha yo\u011fun olur ve \u00e7elik borunun buhar oksidasyon direnci artar. \u015eu anda, \u00c7in&#039;deki bir\u00e7ok \u00f6nde gelen \u00e7elik fabrikas\u0131, GB 5310-2008&#039;de belirtilen ve \u015fu anda \u00c7in&#039;deki \u00e7e\u015fitli ultra s\u00fcperkritik \u00fcnite projelerinde kullan\u0131lan benzer kalitede 10CrL8Ni9NbCu3Bn \u00fcretmektedir.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ultra s\u00fcperkritik \u00fcnitelerin geli\u015fmesiyle birlikte, geleneksel 18-8 \u00d6stenitik paslanmaz \u00e7eliklerin (TP304H \u00e7eli\u011fi gibi) y\u00fcksek s\u0131cakl\u0131k dayan\u0131m\u0131, 600\u00b0C&#039;lik buhar parametreleriyle ihtiya\u00e7lar\u0131n\u0131 kar\u015f\u0131layamaz hale geldi. Bu nedenle Japonya Sumitomo Metal Corporation, \u00fcnitenin kazan \u0131s\u0131tma y\u00fczeyi boru hatt\u0131 i\u00e7in TP347HFG \u00e7eli\u011fi, SUPER304H [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2141","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/comments?post=2141"}],"version-history":[{"count":2,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2141\/revisions"}],"predecessor-version":[{"id":2143,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2141\/revisions\/2143"}],"wp:attachment":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/media?parent=2141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/categories?post=2141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/tags?post=2141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}