{"id":10813,"date":"2023-11-15T11:48:47","date_gmt":"2023-11-15T09:48:47","guid":{"rendered":"https:\/\/comdiflex.com\/products\/sealing-gaskets\/flat-soft-metallic-gaskets\/metalicas\/"},"modified":"2026-01-19T13:14:46","modified_gmt":"2026-01-19T11:14:46","slug":"metal-gaskets","status":"publish","type":"page","link":"https:\/\/comdiflex.com\/en\/products\/sealing-gaskets\/flat-soft-metallic-gaskets\/metal-gaskets\/","title":{"rendered":"Metal gaskets"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:#eae9e9;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1012.96px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_6 1_6 fusion-flex-column imagenproducto\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div ><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"105\" height=\"132\" alt=\"flat gaskets1\" title=\"juntas-planas1\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27105%27%20height%3D%27132%27%20viewBox%3D%270%200%20105%20132%27%3E%3Crect%20width%3D%27105%27%20height%3D%273132%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"http:\/\/comdiflex.com\/wp-content\/uploads\/2021\/06\/juntas-planas1.jpg\" class=\"lazyload img-responsive wp-image-3846\"\/><\/span><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-0{width:16.666666666667% !important;margin-top : 0px;margin-bottom : -10px;}.fusion-builder-column-0 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 11.52%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 11.52%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_5 1_5 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-1 tituloficha\" style=\"font-size:17px;color:#000000;font-family:&quot;Lato&quot;;font-weight:400;transform:translate3d(0,0,0);\"><p>FLAT SEALS<\/p>\n<\/div><div class=\"fusion-text fusion-text-2\" style=\"font-size:22px;color:#000000;font-family:&quot;Lato&quot;;font-weight:700;transform:translate3d(0,0,0);\"><p>METALLICS<\/p>\n<\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-1{width:20% !important;margin-top : 88px;margin-bottom : -10px;}.fusion-builder-column-1 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 9.6%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 9.6%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-1{width:33.333333333333% !important;order : 0;margin-top : 20px;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 5.76%;margin-left : 5.76%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-1{width:33.333333333333% !important;order : 0;margin-top : 20px;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 5.76%;margin-left : 5.76%;}}<\/style><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;width:100%;\"><div class=\"fusion-separator-border sep-single sep-dotted\" style=\"border-color:#000000;border-top-width:1px;\"><\/div><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-2{width:100% !important;margin-top : -5px;margin-bottom : 10px;}.fusion-builder-column-2 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 1.92%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 1.92%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-2{width:100% !important;order : 0;}.fusion-builder-column-2 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-2{width:100% !important;order : 0;}.fusion-builder-column-2 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-1{ padding-top : 0px;margin-top : 10px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:#eae9e9;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1012.96px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div style=\"text-align:center;\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><img decoding=\"async\" width=\"608\" height=\"306\" alt=\"juntas no met\u00e1licas\" title=\"juntas-planas\" src=\"https:\/\/comdiflex.com\/wp-content\/uploads\/2021\/07\/juntas-planas.jpg\" data-orig-src=\"http:\/\/comdiflex.com\/wp-content\/uploads\/2021\/07\/juntas-planas.jpg\" class=\"lazyload img-responsive wp-image-4420\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27608%27%20height%3D%27306%27%20viewBox%3D%270%200%20608%20306%27%3E%3Crect%20width%3D%27608%27%20height%3D%273306%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/comdiflex.com\/wp-content\/uploads\/2021\/07\/juntas-planas-200x101.jpg 200w, https:\/\/comdiflex.com\/wp-content\/uploads\/2021\/07\/juntas-planas-400x201.jpg 400w, https:\/\/comdiflex.com\/wp-content\/uploads\/2021\/07\/juntas-planas-600x302.jpg 600w, https:\/\/comdiflex.com\/wp-content\/uploads\/2021\/07\/juntas-planas.jpg 608w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 608px\" \/><\/span><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-3{width:100% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-3 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 1.92%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 1.92%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-3{width:100% !important;order : 0;}.fusion-builder-column-3 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-3{width:100% !important;order : 0;}.fusion-builder-column-3 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-3\" style=\"font-family:&quot;Roboto&quot;;font-weight:400;transform:translate3d(0,0,0);\"><p>Flat gaskets can also be manufactured in metallic materials (solid). These gaskets are widely used in industrial fields depending on the values of pressure, temperature and the fluid in question. In general, their use is justified when a high tightness is required, as a response to demanding conditions of high temperatures and\/or pressures or as a response to safety requirements against aggressive, flammable, toxic or corrosive fluids.<\/p>\n<p>The correct selection of the gasket material will depend on the service conditions of the equipment. As these seals require high clamping loads for sealing, this will inevitably imply that all the contact geometry between the seal and the surface is in the best possible condition, in terms of finish (very fine finishes are required), correct alignment of the geometry and cleanliness of the contact areas.<br \/>\ncontact areas. This is why, in these cases, the hardness of the solid metal joint is of particular importance.<br \/>\nIn this case the hardness of the gaskets and their surface finish depends substantially on the Brinell hardness of the gasket material. In this regard, we have found that the following ratio: Rz (mm) \u2264 300\/HB Provides good guidance on the required joint finish.<\/p>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:20px;width:100%;\"><\/div><div class=\"fusion-text fusion-text-4\" style=\"font-family:&quot;Roboto&quot;;font-weight:400;transform:translate3d(0,0,0);\"><table style=\"height: 82px;\" width=\"999\">\n<tbody>\n<tr>\n<td style=\"text-align: center; background: #b01117;\" rowspan=\"2\" width=\"79\"><span style=\"color: #ffffff;\">Profile<\/span><\/td>\n<td style=\"text-align: center; background: #b01117;\" rowspan=\"2\" width=\"185\"><span style=\"color: #ffffff;\">Section<\/span><\/td>\n<td style=\"text-align: center; background: #b01117;\" rowspan=\"2\" width=\"140\"><span style=\"color: #ffffff;\">Material<\/span><\/td>\n<td style=\"text-align: center; background: #b01117;\" width=\"80\"><span style=\"color: #ffffff;\">K<sub>O<\/sub>+K<sub>D<\/sub><\/span><\/td>\n<td style=\"text-align: center; background: #b01117;\" width=\"87\"><span style=\"color: #ffffff;\">K<sub>1<\/sub><\/span><\/td>\n<td style=\"text-align: center; background: #b01117;\" width=\"89\"><span style=\"color: #ffffff;\">R<sub>Z<\/sub><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; background: #343433;\" width=\"80\"><span style=\"color: #ffffff;\">[N\/mm]<\/span><\/td>\n<td style=\"text-align: center; background: #343433;\" width=\"87\"><\/td>\n<td style=\"text-align: center; background: #343433;\" width=\"89\"><span style=\"color: #ffffff;\">(\u00b5m)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; background: #343433;\" width=\"79\"><span style=\"color: #ffffff;\">A1<\/span><\/td>\n<td width=\"185\"><img decoding=\"async\" class=\"lazyload wp-image-10652 aligncenter\" src=\"http:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/junt-A1-met.jpg\" data-orig-src=\"http:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/junt-A1-met.jpg\" alt=\"\" width=\"120\" height=\"27\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27120%27%20height%3D%2727%27%20viewBox%3D%270%200%20120%2027%27%3E%3Crect%20width%3D%27120%27%20height%3D%27327%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/junt-A1-met-150x35.jpg 150w, https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/junt-A1-met.jpg 156w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 120px) 100vw, 120px\" \/><\/td>\n<td style=\"text-align: center;\" width=\"140\">Metal<\/td>\n<td style=\"text-align: center;\" width=\"80\">b<sub>D<\/sub><\/td>\n<td style=\"text-align: center;\" width=\"87\">b<sub>D+5<\/sub><\/td>\n<td style=\"text-align: center;\" width=\"89\">1,6 a 6,3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:20px;width:100%;\"><\/div><div class=\"fusion-text fusion-text-5\" style=\"font-family:&quot;Roboto&quot;;font-weight:400;transform:translate3d(0,0,0);\"><p>We can supply metallic flat gaskets in a wide range of materials (stainless steels, mild carbon steel, monel, copper, brass, etc).<\/p>\n<p>It is interesting to note that metallic materials with low hardness or low yield strength (such as copper or aluminum) have relatively small \u03c3min closing stress values compared to harder materials such as carbon steel.<\/p>\n<p>If the latter materials are used, it is possible to use them with special coatings of copper, nickel or silver (between 35 \u00b5m and 50 \u00b5m, up to a maximum of 100 \u00b5m); this will have a beneficial effect on the stress \u03c3min by reducing its value and thus facilitating joint closure.<\/p>\n<p>Solid metal gaskets are (normally) installed in tongue and groove pockets, which usually facilitates their dimensional stability and their operability under high loads. However, it must be taken into account that there are cases in which corrosion may occur due to the possible confinement of fluid debris or fluid particles in the pocket. This pernicious effect can be avoided by the use of special coatings.<\/p>\n<p>As a conclusion, the designer must guarantee, at all times, that under normal working conditions of the equipment (even in the case of hydraulic tests or other type of test) the maximum stress \u03c3max (breaking limit) is never exceeded; for this same reason, and contemplating all the above concepts, the design of bolts, flanges and the geometry and material of the joint must be concordant at\u00a0all times.<\/p>\n<\/div><div class=\"fusion-text fusion-text-6\" style=\"color:#b01117;font-family:&quot;Montserrat&quot;;font-weight:400;transform:translate3d(0,0,0);\"><p><strong>Surface pressure<\/strong><\/p>\n<\/div><div class=\"fusion-text fusion-text-7\" style=\"font-family:&quot;Roboto&quot;;font-weight:400;transform:translate3d(0,0,0);\"><p>The table of minimum stresses \u03c3min (joint closure) and maximum \u03c3max (breaking limit)<strong> for type A1 metal joints is presented below:<\/strong><\/p>\n<\/div><div style=\"text-align:center;\"><span class=\" fusion-imageframe imageframe-none imageframe-3 hover-type-none\"><img decoding=\"async\" width=\"963\" height=\"678\" title=\"presion-juntas-met\" src=\"https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met.jpg\" data-orig-src=\"http:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met.jpg\" class=\"lazyload img-responsive wp-image-10670\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27963%27%20height%3D%27678%27%20viewBox%3D%270%200%20963%20678%27%3E%3Crect%20width%3D%27963%27%20height%3D%273678%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met-200x141.jpg 200w, https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met-400x282.jpg 400w, https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met-600x422.jpg 600w, https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met-800x563.jpg 800w, https:\/\/comdiflex.com\/wp-content\/uploads\/2023\/11\/presion-juntas-met.jpg 963w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 963px\" \/><\/span><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-4{width:100% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-4 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 1.92%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 1.92%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-4{width:100% !important;order : 0;}.fusion-builder-column-4 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-4{width:100% !important;order : 0;}.fusion-builder-column-4 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-2{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":5132,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10813","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.9 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>METALLIC FLAT GASKETS | Reliable Industrial Sealing | COMDIFLEX<\/title>\n<meta name=\"description\" content=\"Metallic flat gaskets for flanges and industrial applications at Comdiflex. 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