{"id":2517,"date":"2026-03-03T08:20:00","date_gmt":"2026-03-03T00:20:00","guid":{"rendered":"https:\/\/www.takebrakes.com\/?p=2517"},"modified":"2026-02-24T16:22:15","modified_gmt":"2026-02-24T08:22:15","slug":"brake-disc-material-and-heat-treatment","status":"publish","type":"post","link":"https:\/\/www.takebrakes.com\/ko\/brake-disc-material-and-heat-treatment\/","title":{"rendered":"\ube0c\ub808\uc774\ud06c \ub514\uc2a4\ud06c \uc7ac\ub8cc \ubc0f \uc5f4\ucc98\ub9ac: \uc0b0\uc5c5\uc6a9 \ube0c\ub808\uc774\ud06c\uc5d0\uc11c \uacbd\ub3c4\uc640 \uae08\uc18d\ud559\uc774 \uc65c \uc911\uc694\ud55c\uac00"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Just like brake wheels on drum brakes, the <strong>brake disc<\/strong> (rotor) is a critical friction partner in disc brake systems. It\u2019s not just a steel plate. The material grade, heat treatment, and surface finish determine whether your brake pads last 6 months or 6 weeks, and whether the disc warps or cracks under thermal load.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This article explains the material requirements for industrial brake discs used with our <a href=\"https:\/\/www.takebrakes.com\/ko\/sh-series-hydraulic-fail-safe-disc-brakes\/\"><strong>SH \uc720\uc555 \ud398\uc77c\uc138\uc774\ud504 \ub514\uc2a4\ud06c \ube0c\ub808\uc774\ud06c<\/strong><\/a> \uadf8\ub9ac\uace0 <strong>YPZ2 electro-hydraulic disc brakes<\/strong>, focusing on hardness, thermal stability, and wear resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud1b5\ud48d\uc2dd \ube0c\ub808\uc774\ud06c \ub514\uc2a4\ud06c\uc640 \uc194\ub9ac\ub4dc \ub514\uc2a4\ud06c\uc758 \ub2e8\uba74, \uc5f4 \ud750\ub984 \uacbd\ub85c \ud45c\uc2dc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-1-the-job-of-the-disc-more-than-just-friction\">1) \ub514\uc2a4\ud06c\uc758 \uc5ed\ud560: \ub2e8\uc21c\ud55c \ub9c8\ucc30 \uc774\uc0c1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub514\uc2a4\ud06c\ub294 \uc138 \uac00\uc9c0 \ud639\ub3c5\ud55c \uc870\uac74\uc744 \ub3d9\uc2dc\uc5d0 \uacac\ub38c\uc57c \ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc5f4\ucda9\uaca9:<\/strong> \ube44\uc0c1 \uc815\uc9c0 \uc911 \ud45c\uba74 \uc628\ub3c4\ub294 \uba87 \ucd08 \ub9cc\uc5d0 20\u00b0C\uc5d0\uc11c 300\u00b0C \uc774\uc0c1\uc73c\ub85c \uc0c1\uc2b9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uae30\uacc4\uc801 \uc751\ub825:<\/strong> \uace0\uc18d RPM\uc5d0\uc11c \uc6d0\uc2ec\ub825\uc740 \ub514\uc2a4\ud06c\ub97c \ud30c\uc5f4\uc2dc\ud0a4\ub824 \ud558\uace0, \ud074\ub7a8\ud551\ub825\uc740 \ub514\uc2a4\ud06c\ub97c \uc555\ucc29\/\ubcc0\ud615\uc2dc\ud0b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub9c8\ubaa8 \ubc0f \uc190\uc0c1:<\/strong> \ud328\ub4dc\uac00 \uc9c0\uc18d\uc801\uc73c\ub85c \ub9c8\ucc30\ud569\ub2c8\ub2e4. \ud648\uc774 \uc0dd\uae30\uc9c0 \uc54a\uc744 \ub9cc\ud07c \ucda9\ubd84\ud788 \ub2e8\ub2e8\ud574\uc57c \ud558\uc9c0\ub9cc \uade0\uc5f4\uc774 \uc0dd\uae30\uc9c0 \uc54a\uc744 \ub9cc\ud07c \ucda9\ubd84\ud788 \uac15\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-material-selection-cast-iron-vs-steel\">2) \uc7ac\ub8cc \uc120\ud0dd: \uc8fc\ucca0 \ub300 \uac15\ucca0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most industrial brake discs are made of <strong>Cast Steel<\/strong> \ub610\ub294 <strong>Ductile Iron<\/strong>, unlike automotive discs which are often Gray Iron.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cast-steel-e-g-zg35crmo-zg42crmo\">\uc8fc\uac15(\uc608: ZG35CrMo, ZG42CrMo)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common for:<\/strong> High-speed, high-energy brakes (wind turbines, large hoists).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc7a5\uc810:<\/strong> \uace0\uac15\ub3c4, \uc6b0\uc218\ud55c \uc778\uc131(\uc27d\uac8c \ud30c\uc5f4\ub418\uc9c0 \uc54a\uc74c), \uc6b0\uc218\ud55c \uc5f4 \uc804\ub3c4\uc131.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810:<\/strong> \uc644\ubcbd\ud55c \ub9c8\uac10\uac00\uacf5\uc774 \ub354 \uc5b4\ub824\uc6b8 \uc218 \uc788\uace0, \ucca0\ubcf4\ub2e4 \uac10\uc1e0\uac00 \uc57d\uac04 \ub0ae\uc544 \uc18c\ub9ac\uac00 \ub354 \ub0a0 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-ductile-iron-e-g-qt500-7-qt600-3\">\uc5f0\uc131 \uc8fc\ucca0(\uc608: QT500-7, QT600-3)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common for:<\/strong> General industrial brakes, lower speeds.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc7a5\uc810:<\/strong> \uc6b0\uc218\ud55c \ub0b4\ub9c8\ubaa8\uc131, \ub354 \ub098\uc740 \uac10\uc1e0(\ub354 \uc870\uc6a9\ud568), \ubcf5\uc7a1\ud55c \ud615\uc0c1 \uc8fc\uc870 \uc6a9\uc774(\ud1b5\ud48d \ub514\uc2a4\ud06c).<\/li>\n\n\n\n<li><strong>\ub2e8\uc810:<\/strong> \ud569\uae08\uac15\ubcf4\ub2e4 \ub0ae\uc740 \uc5f4\ucda9\uaca9 \uc800\ud56d; \uadf9\ud55c \uc791\uc5c5 \uc2dc \uc5f4 \uade0\uc5f4 \uc704\ud5d8.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-hardness-the-goldilocks-zone\">3) \uacbd\ub3c4: \u2018\ud669\uae08\ub960\u2019 \uc601\uc5ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub514\uc2a4\ud06c \uacbd\ub3c4\ub294 \ube0c\ub808\uc774\ud06c \ud328\ub4dc \uc7ac\uc9c8\uacfc \uc77c\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. \ub514\uc2a4\ud06c\uac00 \ub108\ubb34 \ubd80\ub4dc\ub7ec\uc6b0\uba74 \ud328\ub4dc\uac00 \ub514\uc2a4\ud06c\ub97c \ub9c8\ubaa8\uc2dc\ud0a4\uace0, \ub108\ubb34 \ub2e8\ub2e8\ud558\uba74 \ud328\ub4dc\uac00 \uc720\uc57d\ud604\uc0c1\uc774\ub098 \uade0\uc5f4\uc774 \uc0dd\uae41\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc77c\ubc18 \ubc94\uc704:<\/strong> 220\u2013280 HB (\ube0c\ub9ac\ub12c).<\/li>\n\n\n\n<li><strong>\ub108\ubb34 \ubd80\ub4dc\ub7ec\uc6c0 (&lt; 200 HB):<\/strong> \ub514\uc2a4\ud06c\uac00 \ube60\ub974\uac8c \ub9c8\ubaa8\ub418\uace0, \uae4a\uc740 \ud648\uc774 \uc0dd\uae30\uba70, \uc790\uc8fc \uad50\uccb4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub108\ubb34 \ub2e8\ub2e8\ud568 (&gt; 300 HB):<\/strong> \ud328\ub4dc \uc720\uc57d\ud604\uc0c1, \uc18c\uc74c, \ud45c\uba74 \ubbf8\uc138 \uade0\uc5f4 \uac00\ub2a5\uc131(\uc5f4 \uade0\uc5f4 \uac80\uc0ac).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Heat Treatment:<\/strong> Discs are usually <strong>Quenched and Tempered (Q+T)<\/strong> to achieve uniform hardness and structure throughout the cross-section, not just on the surface.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-surface-finish-ra-value-matters\">4) \ud45c\uba74 \ub9c8\uac10: Ra \uac12 \uc911\uc694<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \ud14d\uc2a4\ucc98(\uac70\uce60\uae30)\ub294 \uc0c8 \ud328\ub4dc\uac00 \uc5bc\ub9c8\ub098 \ube68\ub9ac \uc815\ucc29\ub418\uace0 \ub9c8\ucc30\uc774 \uc5bc\ub9c8\ub098 \uc548\uc815\uc801\uc778\uc9c0 \uacb0\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ubaa9\ud45c Ra:<\/strong> 1.6 \u2013 3.2 \u00b5m.<\/li>\n\n\n\n<li><strong>\ub108\ubb34 \ub9e4\ub044\ub7ec\uc6c0 (&lt; 0.8 \u00b5m):<\/strong> \ud328\ub4dc \uc720\uc57d\ud604\uc0c1; \ucd08\uae30 \ud1a0\ud06c \ub0ae\uc74c; \uae34 \ube0c\ub808\uc774\ud06c\ub9c1 \uc2dc\uac04.<\/li>\n\n\n\n<li><strong>\ub108\ubb34 \uac70\uce68 (&gt; 6.3 \u00b5m):<\/strong> \ud328\ub4dc \ube60\ub978 \ub9c8\ubaa8; \uc18c\uc74c; \uacfc\ub3c4\ud55c \uc5f4 \ubc1c\uc0dd.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Machining Direction:<\/strong> Ideally, the finish should be non-directional (cross-hatch) or circumferential, not radial grooves.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-5-ventilation-solid-vs-ventilated-discs\">5) \ub0c9\uac01: \uc194\ub9ac\ub4dc \ub300 \ud1b5\ud48d \ub514\uc2a4\ud06c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f4 \ubc1c\uc0b0\uc774 \ube0c\ub808\uc774\ud06c \uc791\uc5c5 \uc8fc\uae30\uc758 \uc81c\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc194\ub9ac\ub4dc \ub514\uc2a4\ud06c:<\/strong> \ub2e8\uc21c\ud558\uace0 \uacac\uace0\ud558\uba70 \ub2e8\uc77c \uc815\uc9c0(\ube44\uc0c1 \ube0c\ub808\uc774\ud06c)\uc5d0 \uc88b\uc740 \uc5f4 \uc6a9\ub7c9. \ub0c9\uac01 \uc18d\ub3c4\ub294 \ub290\ub9bc.<\/li>\n\n\n\n<li><strong>\ud1b5\ud48d \ub514\uc2a4\ud06c:<\/strong> \ub0b4\ubd80 \ubca0\uc778\uc774 \uc788\uc5b4 \uacf5\uae30\ub97c \ud38c\ud551\ud569\ub2c8\ub2e4. \ud6e8\uc52c \ube60\ub974\uac8c \ub0c9\uac01\ub429\ub2c8\ub2e4. \uace0\uc0ac\uc774\ud074 \uc751\uc6a9 \ubd84\uc57c(\uc11c\ube44\uc2a4 \ube0c\ub808\uc774\ud06c, \uc7a5\ub825 \uc81c\uc5b4)\uc5d0 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.takebrakes.com\/ko\/sh-series-hydraulic-fail-safe-disc-brakes\/\">SH \uc2dc\ub9ac\uc988 \uc720\uc555\uc2dd \ud398\uc77c \uc138\uc774\ud504 \ub514\uc2a4\ud06c \ube0c\ub808\uc774\ud06c<\/a> (Often paired with ventilated discs for high energy)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-6-maintenance-checking-your-disc-health\">6) \uc720\uc9c0\ubcf4\uc218: \ub514\uc2a4\ud06c \uc0c1\ud0dc \uc810\uac80<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub514\uc2a4\ud06c\uac00 \uade0\uc5f4\ub098\uae30 \uc804\uc5d0 \uae30\ub2e4\ub9ac\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \ub9e4\ubc88 \ud328\ub4dc \uad50\uccb4 \uc2dc \uc810\uac80\ud558\uc138\uc694:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub450\uaed8:<\/strong> 3~4\uacf3\uc5d0\uc11c \uce21\uc815\ud558\uc138\uc694. \ucd5c\uc18c \ub450\uaed8 \uc774\ud558\uc774\uba74 \uad50\uccb4\ud569\ub2c8\ub2e4(\ubcf4\ud1b5 \uac00\uc7a5\uc790\ub9ac\uc5d0 \ud45c\uc2dc\ub428).<\/li>\n\n\n\n<li><strong>\ud3b8\uc2ec:<\/strong> \ub2e4\uc774\uc5bc \uac8c\uc774\uc9c0\ub85c \uac80\uc0ac\ud558\uc138\uc694. 0.1~0.2mm \uc774\uc0c1\uc758 \ud3b8\uc2ec\uc740 \ud328\ub4dc \ub109\ubc31\uacfc \uc9c4\ub3d9\uc744 \uc720\ubc1c\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uade0\uc5f4:<\/strong> \u201c\uc5f4 \uade0\uc5f4 \uac80\uc0ac\u201d(\uc791\uc740 \uac70\ubbf8\uc904 \uade0\uc5f4)\ub97c \ucc3e\uc544\ubcf4\uc138\uc694. \uc791\uc740 \uade0\uc5f4\uc740 \uad1c\ucc2e\uc9c0\ub9cc \uac00\uc7a5\uc790\ub9ac\ub098 \ub450\uaed8\uae4c\uc9c0 \uade0\uc5f4\uc774 \uc9c4\ud589\ub418\uba74 \uc989\uc2dc \uc2e4\ud328\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud648:<\/strong> \uae4a\uc740 \ud648\uc740 \uc5f0\ub9c8 \ub9c8\ubaa8\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc7ac\uac00\uacf5\ud558\uac70\ub098 \uad50\uccb4\ud558\uc138\uc694.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-need-replacement-brake-discs\">\ube0c\ub808\uc774\ud06c \ub514\uc2a4\ud06c \uad50\uccb4\uac00 \ud544\uc694\ud558\uc2e0\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We supply high-quality <strong>brake discs<\/strong> (solid and ventilated) matched to our caliper brakes. Specify diameter, thickness, hub bore, and material requirement (or application duty) for a quote.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ube0c\ub808\uc774\ud06c \ub514\uc2a4\ud06c \uc0ac\uc591 \ubc0f \uac00\uaca9 \ubb38\uc758\ub294 \uc5f0\ub77d\uc8fc\uc138\uc694.<\/p>","protected":false},"excerpt":{"rendered":"<p>Just like brake wheels on drum brakes, the brake disc (rotor) is a critical friction partner in disc brake systems. It\u2019s not just a steel plate. The material grade, heat treatment, and surface finish determine whether your brake pads last 6 months or 6 weeks, and whether the disc warps or cracks under thermal load. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,3],"tags":[],"class_list":["post-2517","post","type-post","status-publish","format-standard","hentry","category-info","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/posts\/2517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/comments?post=2517"}],"version-history":[{"count":1,"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/posts\/2517\/revisions"}],"predecessor-version":[{"id":2518,"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/posts\/2517\/revisions\/2518"}],"wp:attachment":[{"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/media?parent=2517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/categories?post=2517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.takebrakes.com\/ko\/wp-json\/wp\/v2\/tags?post=2517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}