{"id":34489,"date":"2025-01-28T08:22:17","date_gmt":"2025-01-28T04:52:17","guid":{"rendered":"https:\/\/sfa-foundry.com\/uretim-malzemeleri\/isiya-dayanikli-celikler-refrakter-celikler\/"},"modified":"2025-04-17T23:15:46","modified_gmt":"2025-04-17T18:45:46","slug":"isiya-dayanikli-celikler-refrakter-celikler","status":"publish","type":"page","link":"https:\/\/sfa-foundry.com\/tr\/uretim-malzemeleri\/isiya-dayanikli-celikler-refrakter-celikler\/","title":{"rendered":"Is\u0131ya dayan\u0131kl\u0131 \u00e7elikler (Refrakter \u00e7elikler)"},"content":{"rendered":"\t\t
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Refrakter \u00c7elik ve \u00d6zellikleri\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\r\n\t\t\t\t
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Refrakter \u00e7elikler, y\u00fcksek s\u0131cakl\u0131klarda mekanik g\u00fc\u00e7lerini ve kimyasal kararl\u0131l\u0131klar\u0131n\u0131 koruyabilen bir grup \u00e7elik ala\u015f\u0131m\u0131n\u0131 ifade eder. Bu benzersiz \u00f6zellik, refrakter \u00e7elikleri y\u00fcksek s\u0131cakl\u0131k ve a\u015f\u0131nd\u0131r\u0131c\u0131 ortamlarda optimal performans gerektiren uygulamalar i\u00e7in birincil tercih haline getirir. Kimyasal bile\u015fimlerinde, krom, nikel, molibden ve silisyum gibi \u00f6nemli ala\u015f\u0131m elemanlar\u0131 bulunur ve her biri, \u00e7eli\u011fin termal ve mekanik \u00f6zelliklerini g\u00fc\u00e7lendirmede kritik bir rol oynar.<\/p>

Krom, \u00e7eli\u011fin y\u00fczeyinde koruyucu bir krom oksit tabakas\u0131 olu\u015fturarak oksidasyona kar\u015f\u0131 direncini \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r. Bu tabaka, y\u00fcksek s\u0131cakl\u0131klarda daha fazla oksidasyonu engeller ve \u00e7eli\u011fin yap\u0131s\u0131n\u0131 ve \u00f6zelliklerini korur. Nikel, akma direncini art\u0131r\u0131r ve a\u015f\u0131r\u0131 \u0131s\u0131nm\u0131\u015f ortamda mekanik performans\u0131 iyile\u015ftirir. Molibden ve silisyum ise \u00e7eli\u011fi daha da g\u00fc\u00e7lendirir ve korozyon direncini art\u0131rarak genel dayan\u0131kl\u0131l\u0131\u011f\u0131n\u0131 y\u00fckseltir.<\/p>

Bu ola\u011fan\u00fcst\u00fc \u00f6zellikler nedeniyle, refrakter \u00e7elikler y\u00fcksek s\u0131cakl\u0131klara ve zorlu \u00e7evre ko\u015fullar\u0131na maruz kalan end\u00fcstrilerde yayg\u0131n olarak kullan\u0131l\u0131r. Yayg\u0131n uygulamalar aras\u0131nda f\u0131r\u0131n bile\u015fenleri, gaz ve buhar t\u00fcrbinleri ve kimya end\u00fcstrisi ekipmanlar\u0131 yer al\u0131r. Bu uygulamalarda, \u0131s\u0131ya, akmaya ve oksidasyona kar\u015f\u0131 diren\u00e7 kritik \u00f6neme sahiptir ve refrakter \u00e7elikler, end\u00fcstriyel ekipmanlar\u0131n verimlili\u011fini ve \u00f6mr\u00fcn\u00fc sa\u011flamakta \u00f6nemli bir rol oynar.<\/p>

Genel olarak, mekanik ve kimyasal \u00f6zelliklerinin benzersiz birle\u015fimiyle, refrakter \u00e7elikler zorlu operasyonel ko\u015fullar ve y\u00fcksek s\u0131cakl\u0131k ortamlar\u0131 i\u00e7in ideal bir se\u00e7imdir ve geli\u015fmi\u015f ve \u00f6zel end\u00fcstrilerdeki yerlerini sa\u011flamla\u015ft\u0131r\u0131r.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\r\n\t\t\t\t

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\n Steel Grade<\/strong>\n <\/td>\n\n C (%)<\/strong>\n <\/td>\n\n Cr (%)<\/strong>\n <\/td>\n\n Ni (%)<\/strong>\n <\/td>\n\n Si (%)<\/strong>\n <\/td>\n\n Mn (%)<\/strong>\n <\/td>\n\n Other Elements (%)<\/strong>\n <\/td>\n\n Temperature Limit (\u00b0C)<\/strong>\n <\/td>\n<\/tr>\n
AISI 309<\/td>\n0.2 max<\/td>\n22-24<\/td>\n12-15<\/td>\n0.75 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~1100<\/td>\n<\/tr>\n
AISI 310<\/td>\n0.25 max<\/td>\n24-26<\/td>\n19-22<\/td>\n1.5 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~1200<\/td>\n<\/tr>\n
AISI 446<\/td>\n0.20 max<\/td>\n23-27<\/td>\n–<\/td>\n0.50 max<\/td>\n1.5 max<\/td>\n–<\/td>\n~1050<\/td>\n<\/tr>\n
1.4841 (310S)<\/td>\n0.02 max<\/td>\n24-26<\/td>\n19-22<\/td>\n1.5 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~1150<\/td>\n<\/tr>\n
AISI 321<\/td>\n0.08 max<\/td>\n17-19<\/td>\n9-12<\/td>\n0.75 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~850<\/td>\n<\/tr>\n
AISI 347<\/td>\n0.08 max<\/td>\n17-19<\/td>\n9-13<\/td>\n0.75 max<\/td>\n2.0 max<\/td>\nNb: 10xC min, 1.0 max<\/td>\n~900<\/td>\n<\/tr>\n
Inconel 600<\/td>\n0.15 max<\/td>\n14-17<\/td>\n72 min<\/td>\n0.50 max<\/td>\n1.0 max<\/td>\nFe: 6-10<\/td>\n~1150<\/td>\n<\/tr>\n
Inconel 625<\/td>\n0.10 max<\/td>\n20-23<\/td>\n58 min<\/td>\n0.50 max<\/td>\n0.50 max<\/td>\nMo: 8-10, Nb: 3.15-4.15<\/td>\n~980<\/td>\n<\/tr>\n
AISI 253MA<\/td>\n0.05-0.10<\/td>\n20-22<\/td>\n10-12<\/td>\n1.4-2.0<\/td>\n0.8 max<\/td>\nN: 0.14-0.20, Ce: 0.03-0.08<\/td>\n~1150<\/td>\n<\/tr>\n
Alloy 601<\/td>\n0.10 max<\/td>\n21-25<\/td>\n58-63<\/td>\n0.50 max<\/td>\n1.0 max<\/td>\nAl: 1.0-1.7<\/td>\n~1200<\/td>\n<\/tr>\n
HK40<\/td>\n0.35 max<\/td>\n24-26<\/td>\n19-22<\/td>\n1.50 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~1100<\/td>\n<\/tr>\n
HP40<\/td>\n0.40 max<\/td>\n24-27<\/td>\n33-37<\/td>\n1.00 max<\/td>\n1.50 max<\/td>\n–<\/td>\n~1200<\/td>\n<\/tr>\n
1.4958 (Alloy 800H)<\/td>\n0.05-0.10<\/td>\n19-23<\/td>\n30-35<\/td>\n1.0 max<\/td>\n1.5 max<\/td>\nAl: 0.15-0.60, Ti: 0.15-0.60<\/td>\n~1100<\/td>\n<\/tr>\n
Alloy 825<\/td>\n0.05 max<\/td>\n19.5-23.5<\/td>\n38-46<\/td>\n0.50 max<\/td>\n1.0 max<\/td>\nMo: 2.5-3.5, Cu: 1.5-3.0, Ti: 0.6-1.2<\/td>\n~1000<\/td>\n<\/tr>\n
1.4724<\/td>\n0.10-0.20<\/td>\n11-13<\/td>\n–<\/td>\n1.5-2.0<\/td>\n0.8 max<\/td>\nAl: 0.70-1.30<\/td>\n~850<\/td>\n<\/tr>\n
1.4742<\/td>\n0.10-0.20<\/td>\n17-19<\/td>\n–<\/td>\n1.5-2.5<\/td>\n0.8 max<\/td>\nAl: 0.70-1.20<\/td>\n~950<\/td>\n<\/tr>\n
1.4828<\/td>\n0.20 max<\/td>\n19-21<\/td>\n11-13<\/td>\n1.5-2.0<\/td>\n0.8 max<\/td>\n–<\/td>\n~1100<\/td>\n<\/tr>\n
1.4876<\/td>\n0.08 max<\/td>\n19-23<\/td>\n30-35<\/td>\n1.0 max<\/td>\n1.5 max<\/td>\nAl: 0.15-0.60, Ti: 0.15-0.60<\/td>\n~1100<\/td>\n<\/tr>\n
Alloy 718<\/td>\n0.08 max<\/td>\n17-21<\/td>\n50-55<\/td>\n0.35 max<\/td>\n0.35 max<\/td>\nMo: 2.8-3.3, Nb+Ta: 4.75-5.50, Ti: 0.65-1.15<\/td>\n~980<\/td>\n<\/tr>\n
1.4961<\/td>\n0.05-0.10<\/td>\n15-17<\/td>\n12-14<\/td>\n0.3-0.6<\/td>\n1.5 max<\/td>\n–<\/td>\n~1100<\/td>\n<\/tr>\n
AISI 304<\/td>\n0.15 max<\/td>\n18-20<\/td>\n8-10.5<\/td>\n1.0 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~800<\/td>\n<\/tr>\n
AISI 304L<\/td>\n0.03 max<\/td>\n18-20<\/td>\n8-12<\/td>\n1.0 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~800<\/td>\n<\/tr>\n
AISI 316<\/td>\n0.08 max<\/td>\n16-18<\/td>\n10-14<\/td>\n1.0 max<\/td>\n2.0 max<\/td>\nMo: 2-3<\/td>\n~850<\/td>\n<\/tr>\n
AISI 316L<\/td>\n0.03 max<\/td>\n16-18<\/td>\n10-14<\/td>\n1.0 max<\/td>\n2.0 max<\/td>\nMo: 2-3<\/td>\n~850<\/td>\n<\/tr>\n
AISI 308<\/td>\n0.08 max<\/td>\n19-21<\/td>\n10-12<\/td>\n1.0 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~850<\/td>\n<\/tr>\n
AISI 420<\/td>\n0.15-0.45<\/td>\n12-14<\/td>\n–<\/td>\n1.0 max<\/td>\n1.0 max<\/td>\n–<\/td>\n~750<\/td>\n<\/tr>\n
1.4848<\/td>\n0.3-0.5<\/td>\n24-26<\/td>\n19-22<\/td>\n1.0-2.5<\/td>\n0.5-1.5<\/td>\n–<\/td>\n~1150<\/td>\n<\/tr>\n
1.4841<\/td>\n0.2max<\/td>\n24-26<\/td>\n19-22<\/td>\n1.5 max<\/td>\n2.0 max<\/td>\n–<\/td>\n~1150<\/td>\n<\/tr>\n
1.4828<\/td>\n0.20 max<\/td>\n19-21<\/td>\n11-13<\/td>\n1.5-2.0<\/td>\n2.0max<\/td>\n–<\/td>\n~1100<\/td>\n<\/tr>\n
1.4837<\/td>\n0.3-0.5<\/td>\n24-26<\/td>\n11-14<\/td>\n1.0-2.5<\/td>\n0.5-1.5<\/td>\n–<\/td>\n~1150<\/td>\n<\/tr>\n
1.4823<\/td>\n0.3-0.5<\/td>\n25-28<\/td>\n3.5-5.5<\/td>\n1.0-2.5<\/td>\n0.5-1.5<\/td>\n–<\/td>\n~1100<\/td>\n<\/tr>\n
5830*<\/td>\n0.70-0.90<\/td>\n24-26<\/td>\n2.5-3.5<\/td>\n1.0-2.0<\/td>\n0.6-1.0<\/td>\n–<\/td>\n~1000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\r\n\t\t
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\u00dcretilen Malzemeler\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\r\n\t\t\t\t
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