{"id":2556,"date":"2023-02-06T08:30:32","date_gmt":"2023-02-06T08:30:32","guid":{"rendered":"https:\/\/hsmagnet.com\/?p=2556"},"modified":"2025-09-03T03:00:55","modified_gmt":"2025-09-03T03:00:55","slug":"difference-entre-la-remanence-de-gauss-de-surface-et-la-force-de-traction","status":"publish","type":"post","link":"https:\/\/hsmagnet.com\/fr\/2023\/02\/06\/difference-between-surface-gauss-remanence-and-pull-strength\/","title":{"rendered":"Diff\u00e9rence entre la surface de Gauss, la r\u00e9manence et la force de traction"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Magnets are often listed with values such as <strong>surface Gauss, remanence (Br), and pull strength<\/strong>. While these terms are related, they describe different aspects of a magnet\u2019s performance. Understanding their distinctions is critical for engineers, buyers, and anyone selecting magnets for industrial or commercial applications.<\/p>\n\n\n\n<!--more-->\n\n\n<div class=\"root-eb-toc-2y85f wp-block-essential-blocks-table-of-contents\"><div class=\"eb-parent-wrapper eb-parent-eb-toc-2y85f \"><div class=\"eb-toc-container eb-toc-2y85f  eb-toc-is-not-sticky eb-toc-not-collapsible eb-toc-initially-not-collapsed eb-toc-scrollToTop style-1 list-style-none\" data-scroll-top=\"false\" data-scroll-top-icon=\"fas fa-angle-up\" data-collapsible=\"false\" data-sticky-hide-mobile=\"false\" data-sticky=\"false\" data-scroll-target=\"scroll_to_toc\" data-copy-link=\"false\" data-editor-type=\"\" data-hide-desktop=\"false\" data-hide-tab=\"false\" data-hide-mobile=\"false\" data-itemcollapsed=\"false\" data-highlight-scroll=\"false\"><div class=\"eb-toc-header\"><h2 class=\"eb-toc-title\">Table of Contents<\/h2><\/div><div class=\"eb-toc-wrapper \" data-headers=\"[{&quot;level&quot;:2,&quot;content&quot;:&quot;What is Surface Gauss?&quot;,&quot;text&quot;:&quot;What is Surface Gauss?&quot;,&quot;link&quot;:&quot;what-is-surface-gauss&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;What is Remanence (Br)?&quot;,&quot;text&quot;:&quot;What is Remanence (Br)?&quot;,&quot;link&quot;:&quot;what-is-remanence-br&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;What is Pull Strength?&quot;,&quot;text&quot;:&quot;What is Pull Strength?&quot;,&quot;link&quot;:&quot;what-is-pull-strength&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Open Circuit vs. Closed Circuit Flux Density&quot;,&quot;text&quot;:&quot;Open Circuit vs. Closed Circuit Flux Density&quot;,&quot;link&quot;:&quot;open-circuit-vs-closed-circuit-flux-density&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Which Metric Matters Most?&quot;,&quot;text&quot;:&quot;Which Metric Matters Most?&quot;,&quot;link&quot;:&quot;which-metric-matters-most&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Conclusion&quot;,&quot;text&quot;:&quot;Conclusion&quot;,&quot;link&quot;:&quot;conclusion&quot;}]\" data-visible=\"[true,true,true,true,true,true]\" data-delete-headers=\"[{&quot;label&quot;:&quot;What is Surface Gauss?&quot;,&quot;value&quot;:&quot;what-is-surface-gauss&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;What is Remanence (Br)?&quot;,&quot;value&quot;:&quot;what-is-remanence-br&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;What is Pull Strength?&quot;,&quot;value&quot;:&quot;what-is-pull-strength&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Open Circuit vs. Closed Circuit Flux Density&quot;,&quot;value&quot;:&quot;open-circuit-vs-closed-circuit-flux-density&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Which Metric Matters Most?&quot;,&quot;value&quot;:&quot;which-metric-matters-most&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Conclusion&quot;,&quot;value&quot;:&quot;conclusion&quot;,&quot;isDelete&quot;:false}]\" data-smooth=\"true\" data-top-offset=\"\"><div class=\"eb-toc__list-wrap\"><ul class=\"eb-toc__list\"><li><a href=\"#what-is-surface-gauss\">What is Surface Gauss?<\/a><li><a href=\"#what-is-remanence-br\">What is Remanence (Br)?<\/a><li><a href=\"#what-is-pull-strength\">What is Pull Strength?<\/a><li><a href=\"#open-circuit-vs-closed-circuit-flux-density\">Open Circuit vs. Closed Circuit Flux Density<\/a><li><a href=\"#which-metric-matters-most\">Which Metric Matters Most?<\/a><li><a href=\"#conclusion\">Conclusion<\/a><\/ul><\/div><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">What is Surface Gauss?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Surface Gauss is a measure of the <strong>magnetic flux density at the surface of a magnet<\/strong>, typically expressed in Gauss or Tesla.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It represents the number of magnetic field lines passing through one square centimeter.<\/li>\n\n\n\n<li>A higher Gauss value means more concentrated field lines at that measurement point.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Point:<\/strong> Surface Gauss depends on magnet geometry (length, diameter, thickness) as well as grade. For example, increasing thickness often results in higher Gauss at the surface.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Infographic-comparing-surface-Gauss-remanence-and-pull-strength-in-magnets-1024x683.webp\" alt=\"Infographic comparing surface Gauss, remanence, and pull strength in magnets.\" class=\"wp-image-13525\" srcset=\"https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Infographic-comparing-surface-Gauss-remanence-and-pull-strength-in-magnets-1024x683.webp 1024w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Infographic-comparing-surface-Gauss-remanence-and-pull-strength-in-magnets-300x200.webp 300w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Infographic-comparing-surface-Gauss-remanence-and-pull-strength-in-magnets-768x512.webp 768w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Infographic-comparing-surface-Gauss-remanence-and-pull-strength-in-magnets-600x400.webp 600w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Infographic-comparing-surface-Gauss-remanence-and-pull-strength-in-magnets.webp 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What is Remanence (Br)?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Remanence, often written as <strong>Br<\/strong>, refers to the <strong>magnetization retained by a magnet once the external magnetizing force is removed<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is typically measured in a <strong>closed magnetic circuit<\/strong>, where all field lines flow internally from North to South.<\/li>\n\n\n\n<li>In this condition, the magnet demonstrates its maximum intrinsic flux density.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> A horseshoe magnet with its keeper attached appears non-magnetic externally because all flux is flowing through a closed path internally.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What is Pull Strength?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pull strength is a <strong>practical measurement of the maximum force required to detach a magnet from a ferromagnetic surface<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is usually expressed in pounds or kilograms.<\/li>\n\n\n\n<li>Pull strength depends on several factors:\n<ul class=\"wp-block-list\">\n<li>Magnet material and grade<\/li>\n\n\n\n<li>Magnet size and shape<\/li>\n\n\n\n<li>Contact surface area and flatness<\/li>\n\n\n\n<li>Presence of coatings or air gaps<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Point:<\/strong> Pull strength is the most relevant measure for end-users seeking to understand how much weight a magnet can hold in real-world applications.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" src=\"https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Magnet-pull-strength-testing-with-tensile-machine-on-steel-surface-1024x769.webp\" alt=\"Magnet pull strength testing with tensile machine on steel surface.\" class=\"wp-image-13526\" srcset=\"https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Magnet-pull-strength-testing-with-tensile-machine-on-steel-surface-1024x769.webp 1024w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Magnet-pull-strength-testing-with-tensile-machine-on-steel-surface-300x225.webp 300w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Magnet-pull-strength-testing-with-tensile-machine-on-steel-surface-768x577.webp 768w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Magnet-pull-strength-testing-with-tensile-machine-on-steel-surface-600x450.webp 600w, https:\/\/hsmagnet.com\/wp-content\/uploads\/2023\/02\/Magnet-pull-strength-testing-with-tensile-machine-on-steel-surface.webp 1500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Open Circuit vs. Closed Circuit Flux Density<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Closed Circuit (Remanence Br):<\/strong> Magnet flux flows entirely through a ferrous path, unleashing maximum internal power with no external field.<\/li>\n\n\n\n<li><strong>Open Circuit (Surface Gauss):<\/strong> Magnetism is emitted into the air and available for attracting objects. Gauss values in this state are much lower, typically below 7,000 Gauss.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong><br>A 10 mm \u00d7 3 mm N42 neodymium disc has ~3600 Gauss at the surface. Increasing thickness to 5 mm raises it to ~5100 Gauss.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Which Metric Matters Most?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Surface Gauss<\/strong> \u2192 Best for comparing field strength at a specific measurement point.<\/li>\n\n\n\n<li><strong>Remanence (Br)<\/strong> \u2192 Important for magnet designers and manufacturers.<\/li>\n\n\n\n<li><strong>Pull Strength<\/strong> \u2192 Most useful for buyers and end-users who need to know how much weight the magnet can hold.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">At <a href=\"https:\/\/hsmagnet.com\/\">HS Magnet<\/a>, we measure all three parameters using calibrated equipment such as Gaussmeters, tensile pull testers, and certified reference magnets. Each product is clearly labeled with <strong>surface Gauss rating and maximum pull force<\/strong> to ensure accuracy and reliability.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">While <strong>surface Gauss, remanence, and pull strength<\/strong> are related, they serve different purposes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gauss describes magnetic flux density at a point.<\/li>\n\n\n\n<li>Remanence reflects the magnet\u2019s intrinsic strength in a closed loop.<\/li>\n\n\n\n<li>Pull strength shows real-world holding capability.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For practical applications, pull strength often provides the clearest picture of performance. However, engineers and designers may rely more heavily on Gauss and remanence values for system integration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Need help choosing the right magnet?<\/strong> <a href=\"https:\/\/hsmagnet.com\/contact-us\/\">Contact our HS Magnet team<\/a> for expert guidance and product recommendations tailored to your application.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les aimants sont souvent list\u00e9s avec des valeurs telles que le Gauss de surface, la r\u00e9manence (Br) et la force de traction. Bien que ces termes soient li\u00e9s, ils d\u00e9crivent diff\u00e9rents aspects des performances d&#039;un aimant. Comprendre leurs diff\u00e9rences est essentiel pour les ing\u00e9nieurs, les acheteurs et toute personne choisissant des aimants pour des applications industrielles ou commerciales.<\/p>","protected":false},"author":1,"featured_media":13523,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-2556","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magnet-tech"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Difference Between Surface Gauss, Remanence, and Pull Strength in Magnets | HS Magnet<\/title>\n<meta name=\"description\" content=\"Learn the key differences between surface Gauss, remanence (Br), and pull strength in magnets. Understand how these values are measured, what they mean, and which metric matters most when selecting magnets for industrial or commercial use.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hsmagnet.com\/fr\/2023\/02\/06\/difference-entre-la-remanence-de-gauss-de-surface-et-la-force-de-traction\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Difference Between Surface Gauss, Remanence, and Pull Strength in Magnets | HS Magnet\" \/>\n<meta property=\"og:description\" content=\"Learn the key differences between surface Gauss, remanence (Br), and pull strength in magnets. 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