{"id":117381,"date":"2022-09-16T15:22:00","date_gmt":"2022-09-16T14:22:00","guid":{"rendered":"https:\/\/material-properties.org\/cromo-e-ferro-comparacao-propriedades\/"},"modified":"2022-10-22T16:07:25","modified_gmt":"2022-10-22T15:07:25","slug":"cromo-e-ferro-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/cromo-e-ferro-comparacao-propriedades\/","title":{"rendered":"Cromo e Ferro &#8211; Compara\u00e7\u00e3o &#8211; Propriedades"},"content":{"rendered":"<p><em><span>Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do cromo e do ferro, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica.\u00a0Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos.\u00a0Cromo vs. Ferro.<\/span><\/em><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-106969\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/chromium-and-iron-comparison.png\" alt=\"cromo e ferro - compara\u00e7\u00e3o\" width=\"1000\" height=\"900\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/chromium-and-iron-comparison.png 1000w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/chromium-and-iron-comparison-300x270.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/chromium-and-iron-comparison-768x691.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Compare chromium with another element<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Copper-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com cobre\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Copper-properties-price-application-production-150x150.png\" alt=\"Cobre - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Ferro\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Iron-properties-price-application-production-150x150.png\" alt=\"Ferro - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Zinc-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com zinco\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Zinc-properties-price-application-production-150x150.png\" alt=\"Zinco - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Manganese-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com mangan\u00eas\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Manganese-properties-price-application-production-150x150.png\" alt=\"Mangan\u00eas - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Molybdenum-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Molibd\u00eanio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Molybdenum-properties-price-application-production-150x150.png\" alt=\"Molibd\u00eanio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Tungsten-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Tungst\u00eanio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Tungsten-properties-price-application-production-150x150.png\" alt=\"Tungst\u00eanio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Compare iron with another element<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/Carbon-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Carbono\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Carbon-properties-price-application-production-150x150.png\" alt=\"Carbono - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Oxygen-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com oxig\u00eanio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Oxygen-properties-price-application-production-150x150.png\" alt=\"Oxig\u00eanio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Fluorine-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com fl\u00faor\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Fluorine-properties-price-application-production-150x150.png\" alt=\"Fl\u00faor - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Magn\u00e9sio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Magnesium-properties-price-application-production-150x150.png\" alt=\"Magn\u00e9sio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Aluminium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com alum\u00ednio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Aluminium-properties-price-application-production-150x150.png\" alt=\"Alum\u00ednio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chlorine-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com cloro\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Chlorine-properties-price-application-production-150x150.png\" alt=\"Cloro - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Potassium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com pot\u00e1ssio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Potassium-properties-price-application-production-150x150.png\" alt=\"Pot\u00e1ssio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Calcium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com c\u00e1lcio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Calcium-properties-price-application-production-150x150.png\" alt=\"C\u00e1lcio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Chromium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com cromo\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Chromium-properties-price-application-production-150x150.png\" alt=\"Cromo - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Manganese-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com mangan\u00eas\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Manganese-properties-price-application-production-150x150.png\" alt=\"Mangan\u00eas - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Iron-and-Cobalt-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Cobalto\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Cobalt-properties-price-application-production-150x150.png\" alt=\"Cobalto - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Iron-and-Nickel-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com N\u00edquel\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Nickel-properties-price-application-production-150x150.png\" alt=\"N\u00edquel - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Iron-and-Copper-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com cobre\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Copper-properties-price-application-production-150x150.png\" alt=\"Cobre - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Iron-and-Zinc-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com zinco\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Zinc-properties-price-application-production-150x150.png\" alt=\"Zinco - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Iron-and-Zirconium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Zirc\u00f4nio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Zirconium-properties-price-application-production-150x150.png\" alt=\"Zirc\u00f4nio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Iron-and-Lead-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparar com chumbo\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Lead-properties-price-application-production-150x150.png\" alt=\"Lead - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2><span>Cromo e Ferro &#8211; Sobre os Elementos<\/span><\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/chromium-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#000000\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><i class=\"sui sui-info-circle\" style=\"font-size:48px;color:#5dbcd2\"><\/i><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#000000\">\n<h3><span>Cromo<\/span><\/h3>\n<p>O cromo \u00e9 um metal cinza-a\u00e7o, lustroso, duro e quebradi\u00e7o, que recebe um alto polimento, resiste a manchas e tem um alto ponto de fus\u00e3o.\u00a0Um grande desenvolvimento foi a descoberta de que o a\u00e7o poderia ser altamente resistente \u00e0 corros\u00e3o e descolora\u00e7\u00e3o pela adi\u00e7\u00e3o de cromo met\u00e1lico para formar a\u00e7o inoxid\u00e1vel.<\/p>\n<\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/iron-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#000000\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><i class=\"sui sui-info-circle\" style=\"font-size:48px;color:#5dbcd2\"><\/i><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#000000\">\n<h3><span>Ferro<\/span><\/h3>\n<p><span>O ferro \u00e9 um metal da primeira s\u00e9rie de transi\u00e7\u00e3o.\u00a0\u00c9 em massa o elemento mais comum na Terra, formando grande parte do n\u00facleo externo e interno da Terra.\u00a0\u00c9 o quarto elemento mais comum na crosta terrestre.\u00a0Sua abund\u00e2ncia em planetas rochosos como a Terra se deve \u00e0 sua produ\u00e7\u00e3o abundante por fus\u00e3o em estrelas de alta massa.<\/span><\/p>\n<\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92359\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Chromium-periodic-table-300x269.png\" alt=\"Cromo na Tabela Peri\u00f3dica\" width=\"300\" height=\"269\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Chromium-periodic-table-300x269.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Chromium-periodic-table.png 708w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92379\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Iron-periodic-table-297x300.png\" alt=\"Ferro na Tabela Peri\u00f3dica\" width=\"297\" height=\"300\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Iron-periodic-table-297x300.png 297w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Iron-periodic-table.png 720w\" sizes=\"(max-width: 297px) 100vw, 297px\" \/><\/p>\n<p style=\"text-align: left;\"><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p style=\"text-align: center;\"><span>Fonte: www.luciteria.com<\/span><\/p>\n<p><span><div class=\"su-spacer\" style=\"height:20px\"><\/div><\/span><\/p>\n<p><span><div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\"><\/span><\/p>\n<h2><span>Cromo e Ferro &#8211; Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/chromium-properties-applications-price-production\/\"><span>Cromo<\/span><\/a><\/h3>\n<p><span>O cromo \u00e9 um dos metais industriais mais importantes e indispens\u00e1veis \u200b\u200bdevido \u00e0 sua dureza e resist\u00eancia \u00e0 corros\u00e3o.\u00a0Mas \u00e9 usado para mais do que a produ\u00e7\u00e3o de a\u00e7o inoxid\u00e1vel e ligas n\u00e3o ferrosas;\u00a0tamb\u00e9m \u00e9 usado para criar pigmentos e produtos qu\u00edmicos usados \u200b\u200bpara processar couro.\u00a0Na metalurgia, o cromo aumenta a dureza, for\u00e7a e resist\u00eancia \u00e0 corros\u00e3o.\u00a0O efeito de fortalecimento da forma\u00e7\u00e3o de carbonetos met\u00e1licos est\u00e1veis \u200b\u200bnos contornos de gr\u00e3o e o forte aumento na resist\u00eancia \u00e0 corros\u00e3o tornaram o cromo um importante material de liga para o a\u00e7o.\u00a0De um modo geral, a concentra\u00e7\u00e3o especificada para a maioria das s\u00e9ries \u00e9 de aproximadamente 4%.\u00a0Este n\u00edvel parece resultar no melhor equil\u00edbrio entre dureza e tenacidade.\u00a0O cromo desempenha um papel importante no mecanismo de endurecimento e \u00e9 considerado insubstitu\u00edvel.\u00a0Em temperaturas mais altas,\u00a0o cromo contribui para o aumento da resist\u00eancia.\u00a0\u00c9 comumente usado para aplica\u00e7\u00f5es desta natureza em conjunto com o molibd\u00eanio.\u00a0A resist\u00eancia dos a\u00e7os inoxid\u00e1veis \u200b\u200b\u00e9 baseada na passiva\u00e7\u00e3o.\u00a0Para que a passiva\u00e7\u00e3o ocorra e permane\u00e7a est\u00e1vel, a liga Fe-Cr deve ter um teor m\u00ednimo de cromo de cerca de 11% em peso, acima do qual pode ocorrer passividade e abaixo do qual \u00e9 imposs\u00edvel.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/iron-properties-applications-price-production\/\"><span>Ferro<\/span><\/a><\/h3>\n<p><span>O ferro \u00e9 usado em v\u00e1rios setores, como eletr\u00f4nicos, manufatura, automotivo e constru\u00e7\u00e3o civil.\u00a0O ferro \u00e9 o mais amplamente utilizado de todos os metais, respondendo por mais de 90% da produ\u00e7\u00e3o mundial de metal.\u00a0Seu baixo custo e alta resist\u00eancia muitas vezes o tornam o material de escolha para suportar tens\u00f5es ou transmitir for\u00e7as, como a constru\u00e7\u00e3o de m\u00e1quinas e m\u00e1quinas-ferramentas, trilhos, autom\u00f3veis, cascos de navios, barras de refor\u00e7o de concreto e a estrutura de carga de edif\u00edcios. Como o ferro puro \u00e9 bastante macio, \u00e9 mais comumente combinado com elementos de liga para fazer a\u00e7o.\u00a0Os a\u00e7os s\u00e3o ligas ferro-carbono que podem conter concentra\u00e7\u00f5es apreci\u00e1veis \u200b\u200bde outros elementos de liga.\u00a0Adicionar uma pequena quantidade de carbono n\u00e3o met\u00e1lico ao ferro troca sua grande ductilidade pela maior resist\u00eancia.\u00a0Devido \u00e0 sua alta resist\u00eancia,\u00a0mas ainda tenacidade substancial, e sua capacidade de ser grandemente alterada por tratamento t\u00e9rmico, o a\u00e7o \u00e9 uma das ligas ferrosas mais \u00fateis e comuns em uso moderno.\u00a0Existem milhares de ligas que possuem diferentes composi\u00e7\u00f5es e\/ou tratamentos t\u00e9rmicos.\u00a0As propriedades mec\u00e2nicas s\u00e3o sens\u00edveis ao teor de carbono, que normalmente \u00e9 inferior a 1,0% em peso.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2><span>Cromo e Ferro &#8211; Compara\u00e7\u00e3o na Tabela<\/span><\/h2>\n<p><span><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<table class=\"a\">\n<tbody>\n<tr class=\"b\">\n<td style=\"text-align: center;\"><span>Elemento<\/span><\/td>\n<td style=\"text-align: center;\"><b><span>Cromo<\/span><\/b><\/td>\n<td style=\"text-align: center;\"><b><span>Ferro<\/span><\/b><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Densidade<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>7,14 g\/cm<sup>3<\/sup><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>7,874 g\/cm<sup>3<\/sup><\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>550 MPa<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>540 MPa<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>For\u00e7a de rendimento<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>131 MPa<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>50 MPa<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>M\u00f3dulo de elasticidade de Young<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>279 GPa<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>211 GPa<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Escala de Mohs<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>8,5<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>4,5<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Dureza Brinell<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>1120 MPa<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>490 MPa<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Dureza Vickers<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>1060 MPa<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>608 MPa<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Ponto de fus\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>1907 \u00b0C<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>1538 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>2671 \u00b0C<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>2861 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Condutividade t\u00e9rmica<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>93,7 W\/mK<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>80,2 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>4,9 \u00b5m\/mK<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>11,8 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Calor espec\u00edfico<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\"><span>0,45 J\/gK<\/span><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>0,44 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Calor de fus\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>16,9 kJ\/mol<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>13,8 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\"><span>344,3 kJ\/mol<\/span><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>349,6 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do cromo e do ferro, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica.\u00a0Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos.\u00a0Cromo vs. Ferro. Fonte: www.luciteria.com &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cromo e Ferro - Compara\u00e7\u00e3o - Propriedades - Material Properties<\/title>\n<meta name=\"description\" content=\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do cromo e do ferro, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. 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