{"id":41844,"date":"2026-04-09T02:11:41","date_gmt":"2026-04-09T06:11:41","guid":{"rendered":"https:\/\/intercorpusa.com\/home\/?page_id=41844"},"modified":"2026-04-10T01:34:38","modified_gmt":"2026-04-10T05:34:38","slug":"galvanic-corrosion-chart","status":"publish","type":"page","link":"https:\/\/intercorpusa.com\/home\/galvanic-corrosion-chart\/","title":{"rendered":"Galvanic Corrosion Chart"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mnrhqccy-a01b1ef94c92b4880fbff4762cdac55c\">\n#top .av-special-heading.av-mnrhqccy-a01b1ef94c92b4880fbff4762cdac55c{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-mnrhqccy-a01b1ef94c92b4880fbff4762cdac55c .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-mnrhqccy-a01b1ef94c92b4880fbff4762cdac55c .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-mnrhqccy-a01b1ef94c92b4880fbff4762cdac55c av-special-heading-h2  avia-builder-el-0  el_before_av_textblock  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Galvanic Corrosion Chart: Check Metal Compatibility Instantly<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<section  class='av_textblock_section av-mnrhqnow-53f4f049fc780e47859e12e6833f5d59'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p data-start=\"239\" data-end=\"408\">Prevent costly failures caused by dissimilar metals. Use this galvanic corrosion chart to quickly assess compatibility and reduce corrosion risk in your application.<\/p>\n<\/div><\/section>\n<div class='flex_column av-mf8e9g-4c334718e513e233702017459a2db65e av_one_full  avia-builder-el-2  el_after_av_textblock  el_before_av_heading  first flex_column_div column-top-margin'     ><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mnrhrhzu-2fad55579c0cd690101ed7006b5d8d32\">\n#top .av-special-heading.av-mnrhrhzu-2fad55579c0cd690101ed7006b5d8d32{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-mnrhrhzu-2fad55579c0cd690101ed7006b5d8d32 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-mnrhrhzu-2fad55579c0cd690101ed7006b5d8d32 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-mnrhrhzu-2fad55579c0cd690101ed7006b5d8d32 av-special-heading-h2  avia-builder-el-4  el_after_av_one_full  el_before_av_textblock '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >What Is Galvanic Corrosion?<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<section  class='av_textblock_section av-mnrhrbeq-48f0518674250ff7872dba21aec52bbb'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p data-start=\"666\" data-end=\"894\">Galvanic corrosion occurs when <strong data-start=\"697\" data-end=\"785\">two dissimilar metals come into electrical contact in the presence of an electrolyte<\/strong> (like moisture or saltwater). One metal becomes the anode and corrodes faster, while the other is protected.<\/p>\n<p data-start=\"896\" data-end=\"1030\">This reaction is driven by differences in the galvanic series of metals, which ranks materials by their electrochemical potential.<\/p>\n<h2 data-section-id=\"8no1ng\" data-start=\"1037\" data-end=\"1096\"><span role=\"text\">Galvanic Corrosion Metals: Why Compatibility Matters<\/span><\/h2>\n<p data-start=\"1098\" data-end=\"1252\">Not all metals behave the same when paired together. The further apart two metals are in the galvanic series chart, the <strong>greater the risk of corrosion.<\/strong><\/p>\n<h4 data-section-id=\"xyj6e3\" data-start=\"1254\" data-end=\"1289\">Key Factors That Increase Risk:<\/h4>\n<ul data-start=\"1290\" data-end=\"1412\">\n<li data-section-id=\"nvgjvm\" data-start=\"1290\" data-end=\"1314\">Moisture or humidity<\/li>\n<li data-section-id=\"1pfj1ip\" data-start=\"1315\" data-end=\"1355\">Salt exposure (coastal environments)<\/li>\n<li data-section-id=\"8uvxfj\" data-start=\"1356\" data-end=\"1377\">Chemical exposure<\/li>\n<li data-section-id=\"1b2j4n\" data-start=\"1378\" data-end=\"1412\">Poor drainage or trapped water<\/li>\n<\/ul>\n<p data-start=\"1414\" data-end=\"1497\">Even metals with moderate compatibility can fail prematurely in harsh environments.<\/p>\n<h2 data-section-id=\"183d5f4\" data-start=\"1504\" data-end=\"1549\"><span role=\"text\"><strong data-start=\"1507\" data-end=\"1549\">How to Read a Galvanic Corrosion Chart<\/strong><\/span><\/h2>\n<p data-start=\"1551\" data-end=\"1606\">Using a <strong data-start=\"1559\" data-end=\"1586\">galvanic reaction chart<\/strong> is straightforward:<\/p>\n<ol data-start=\"1608\" data-end=\"1863\">\n<li data-section-id=\"18jfsw5\" data-start=\"1608\" data-end=\"1650\">Identify the <strong data-start=\"1624\" data-end=\"1650\">base (corroding) metal<\/strong><\/li>\n<li data-section-id=\"1t8n0dw\" data-start=\"1651\" data-end=\"1680\">Find the <strong data-start=\"1663\" data-end=\"1680\">contact metal<\/strong><\/li>\n<li data-section-id=\"tnrse8\" data-start=\"1681\" data-end=\"1711\">Locate where they intersect<\/li>\n<li data-section-id=\"1e9e3bf\" data-start=\"1712\" data-end=\"1863\">Review the corrosion risk level:\n<ul data-start=\"1751\" data-end=\"1863\">\n<li data-section-id=\"177ykv3\" data-start=\"1751\" data-end=\"1784\"><strong data-start=\"1753\" data-end=\"1765\">Low Risk<\/strong> \u2192 Generally safe<\/li>\n<li data-section-id=\"1okaqns\" data-start=\"1788\" data-end=\"1826\"><strong data-start=\"1790\" data-end=\"1807\">Moderate Risk<\/strong> \u2192 Use protection<\/li>\n<li data-section-id=\"1xuy2a0\" data-start=\"1830\" data-end=\"1863\"><strong data-start=\"1832\" data-end=\"1845\">High Risk<\/strong> \u2192 Avoid pairing<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mnrtle60-aac6fe04e68814ad64aabfccef2144fc\">\n.avia-image-container.av-mnrtle60-aac6fe04e68814ad64aabfccef2144fc img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-mnrtle60-aac6fe04e68814ad64aabfccef2144fc .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-mnrtle60-aac6fe04e68814ad64aabfccef2144fc av-styling- avia-align-center  avia-builder-el-6  el_after_av_textblock  el_before_av_textblock '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" class='wp-image-41859 avia-img-lazy-loading-not-41859 avia_image ' src=\"https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart.png\" alt='galvanic compatibility chart' title='galvanic compatibility chart'  height=\"725\" width=\"1047\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart.png 1047w, https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart-300x208.png 300w, https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart-1030x713.png 1030w, https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart-768x532.png 768w, https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart-705x488.png 705w, https:\/\/intercorpusa.com\/home\/wp-content\/uploads\/2026\/04\/galvanic-compatibility-chart-150x104.png 150w\" sizes=\"(max-width: 1047px) 100vw, 1047px\" \/><\/div><\/div><\/div>\n<section  class='av_textblock_section av-mnrhzzg7-91115791ff0d0104be65cca24155dc44'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2 data-section-id=\"1bz2wd\" data-start=\"1870\" data-end=\"1908\"><span role=\"text\">Galvanic Series Chart Explained<\/span><\/h2>\n<p data-start=\"1910\" data-end=\"2035\">A galvanic series chart ranks metals from most anodic (more likely to corrode) to most cathodic (less likely to corrode).<\/p>\n<h3 data-section-id=\"1gu1qgl\" data-start=\"2037\" data-end=\"2083\">Simplified Order (Most to Least Reactive):<\/h3>\n<ul data-start=\"2084\" data-end=\"2191\">\n<li data-section-id=\"ovg8cq\" data-start=\"2084\" data-end=\"2097\">Magnesium<\/li>\n<li data-section-id=\"1ys8t2\" data-start=\"2098\" data-end=\"2106\">Zinc<\/li>\n<li data-section-id=\"oz6vb6\" data-start=\"2107\" data-end=\"2119\">Aluminum<\/li>\n<li data-section-id=\"fxjifk\" data-start=\"2120\" data-end=\"2136\">Carbon Steel<\/li>\n<li data-section-id=\"4dldyj\" data-start=\"2137\" data-end=\"2156\">Stainless Steel<\/li>\n<li data-section-id=\"84jjgu\" data-start=\"2157\" data-end=\"2167\">Nickel<\/li>\n<li data-section-id=\"1nvbpjn\" data-start=\"2168\" data-end=\"2178\">Copper<\/li>\n<li data-section-id=\"1o5dj7j\" data-start=\"2179\" data-end=\"2191\">Titanium<\/li>\n<\/ul>\n<p data-start=\"2193\" data-end=\"2311\">The greater the distance between two metals in this series, the <strong>higher the risk<\/strong> of dissimilar metals corrosion.<\/p>\n<h2 data-section-id=\"1nwf0dp\" data-start=\"2318\" data-end=\"2371\"><span role=\"text\">Dissimilar Metals Corrosion: Real-World Impact<\/span><\/h2>\n<p data-start=\"2373\" data-end=\"2432\">When incompatible metals are used together, it can lead to:<\/p>\n<ul data-start=\"2433\" data-end=\"2561\">\n<li data-section-id=\"tzmxop\" data-start=\"2433\" data-end=\"2463\">Premature fastener failure<\/li>\n<li data-section-id=\"6h2rwm\" data-start=\"2464\" data-end=\"2488\">Structural weakening<\/li>\n<li data-section-id=\"1ld3nd9\" data-start=\"2489\" data-end=\"2520\">Increased maintenance costs<\/li>\n<li data-section-id=\"1ap43pm\" data-start=\"2521\" data-end=\"2561\">Safety risks in load-bearing systems<\/li>\n<\/ul>\n<p data-start=\"2563\" data-end=\"2594\">This is especially critical in:<\/p>\n<ul data-start=\"2595\" data-end=\"2683\">\n<li data-section-id=\"1nmfv79\" data-start=\"2595\" data-end=\"2611\">Construction<\/li>\n<li data-section-id=\"gcnryi\" data-start=\"2612\" data-end=\"2631\">Roofing systems<\/li>\n<li data-section-id=\"1ccv4nm\" data-start=\"2632\" data-end=\"2655\">Marine environments<\/li>\n<li data-section-id=\"uc3ug6\" data-start=\"2656\" data-end=\"2683\">Industrial applications<\/li>\n<\/ul>\n<h2 data-section-id=\"13rxy67\" data-start=\"2690\" data-end=\"2737\"><span role=\"text\">Galvanic Corrosion Prevention Strategies<\/span><\/h2>\n<p data-start=\"2739\" data-end=\"2862\">Preventing corrosion is not just about choosing the right metals, it\u2019s about controlling the environment and contact points.<\/p>\n<h3 data-section-id=\"wq0e4g\" data-start=\"2864\" data-end=\"2883\">Proven Methods:<\/h3>\n<h4 data-start=\"2885\" data-end=\"2914\">1. Use Compatible Metals<\/h4>\n<p data-start=\"2915\" data-end=\"2998\">Select metals close together in the galvanic corrosion chart whenever possible.<\/p>\n<h4 data-start=\"3000\" data-end=\"3033\">2. Apply Protective Coatings<\/h4>\n<p data-start=\"3034\" data-end=\"3115\">Barrier coatings prevent direct metal-to-metal contact and reduce corrosion risk.<\/p>\n<h4 data-start=\"3117\" data-end=\"3148\">3. Use Isolation Materials<\/h4>\n<p data-start=\"3149\" data-end=\"3229\">Non-conductive washers, sleeves, or gaskets can break the electrical connection.<\/p>\n<h4 data-start=\"3231\" data-end=\"3262\">4. Control the Environment<\/h4>\n<p data-start=\"3263\" data-end=\"3331\">Reduce moisture exposure and improve drainage to limit electrolytes.<\/p>\n<h4 data-start=\"3333\" data-end=\"3373\">5. Choose the Right Fastener System<\/h4>\n<p data-start=\"3374\" data-end=\"3448\">Coated or corrosion-resistant fasteners can significantly extend lifespan.<\/p>\n<h2 data-section-id=\"z4d3jl\" data-start=\"3455\" data-end=\"3487\"><span role=\"text\">When to Be Most Concerned<\/span><\/h2>\n<p data-start=\"3489\" data-end=\"3547\">You should pay extra attention to galvanic corrosion when:<\/p>\n<ul data-start=\"3548\" data-end=\"3728\">\n<li data-section-id=\"f3r7d5\" data-start=\"3548\" data-end=\"3596\">Metals are exposed to <strong data-start=\"3572\" data-end=\"3596\">outdoor environments<\/strong><\/li>\n<li data-section-id=\"tlhhuu\" data-start=\"3597\" data-end=\"3645\">There is <strong data-start=\"3608\" data-end=\"3645\">frequent moisture or condensation<\/strong><\/li>\n<li data-section-id=\"czimlh\" data-start=\"3646\" data-end=\"3691\">Systems are near <strong data-start=\"3665\" data-end=\"3691\">saltwater or chemicals<\/strong><\/li>\n<li data-section-id=\"xa4h3l\" data-start=\"3692\" data-end=\"3728\">Long-term durability is critical<\/li>\n<\/ul>\n<h2 data-section-id=\"nlaywe\" data-start=\"3735\" data-end=\"3782\"><span role=\"text\">Need Help Preventing Galvanic Corrosion?<\/span><\/h2>\n<p data-start=\"3784\" data-end=\"3893\">Choosing the right materials and coatings can prevent expensive failures and extend the life of your project.<\/p>\n<p data-start=\"3895\" data-end=\"3940\"><a href=\"\/home\/contact-us\/\"><strong data-start=\"3895\" data-end=\"3940\">Request a Recommendation from Intercorp<\/strong><\/a><\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mnri3xf3-40f7004ca93817a63bca950b444959dd\">\n#top .av-special-heading.av-mnri3xf3-40f7004ca93817a63bca950b444959dd{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-mnri3xf3-40f7004ca93817a63bca950b444959dd .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-mnri3xf3-40f7004ca93817a63bca950b444959dd .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-mnri3xf3-40f7004ca93817a63bca950b444959dd av-special-heading-h2  avia-builder-el-8  el_after_av_textblock  el_before_av_toggle_container '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >FAQ: Galvanic Corrosion<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<div  class='togglecontainer av-mnri1kmm-21e684bd64d2b5cacfd79fe01cb2ffbd  avia-builder-el-9  el_after_av_heading  avia-builder-el-last  toggle_close_all'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/FAQPage\" >\n<section class='av_toggle_section av-mnri0u1p-f51d1f0e31a75550b4c3d6d17dc2c6e0'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p data-fake-id='#toggle-id-1' class='toggler   '  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='toggle-id-1'>What metals should not be used together?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-1' class='toggle_wrap  '   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color '  itemprop=\"text\" ><p data-start=\"4024\" data-end=\"4139\">Metals far apart in the galvanic series\u2014such as aluminum and copper\u2014should generally be avoided without protection.<\/p>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-mnri13gi-a74fd3ff714db922e24f3c3a2bae47de'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p data-fake-id='#toggle-id-2' class='toggler   '  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='toggle-id-2'>Does stainless steel cause corrosion with other metals?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-2' class='toggle_wrap  '   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color '  itemprop=\"text\" ><p data-start=\"4201\" data-end=\"4313\">Yes. Stainless steel can accelerate corrosion when paired with more anodic metals like aluminum or carbon steel.<\/p>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-mnri1els-d1fc78ca6890f54f15938c3f47567564'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p data-fake-id='#toggle-id-3' class='toggler   '  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='toggle-id-3'>How do you stop galvanic corrosion?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-3' class='toggle_wrap  '   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color '  itemprop=\"text\" ><p data-start=\"4355\" data-end=\"4453\">Use coatings, isolate metals, and select compatible materials based on a galvanic corrosion chart.<\/p>\n<\/div><\/div><\/div><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":14,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-41844","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/pages\/41844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/comments?post=41844"}],"version-history":[{"count":13,"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/pages\/41844\/revisions"}],"predecessor-version":[{"id":41846,"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/pages\/41844\/revisions\/41846"}],"wp:attachment":[{"href":"https:\/\/intercorpusa.com\/home\/wp-json\/wp\/v2\/media?parent=41844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}