{"id":7562,"date":"2025-08-09T16:46:38","date_gmt":"2025-08-09T08:46:38","guid":{"rendered":"https:\/\/dinglidiespring.com\/?p=7562"},"modified":"2025-08-09T16:47:12","modified_gmt":"2025-08-09T08:47:12","slug":"65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs","status":"publish","type":"post","link":"https:\/\/dinglidiespring.com\/ja\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/","title":{"rendered":"65Mn\u306850CrVA\u306e\u8aac\u660e\uff1aJIS\u3070\u306d\u306e\u5f37\u5ea6\u3001\u8010\u4e45\u6027\u3001\u6700\u9069\u306a\u7528\u9014"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u88fd\u9020\u696d\u306b\u95a2\u3057\u3066\u306f <strong>JIS\u898f\u683c\u3070\u306d<\/strong>\u6750\u6599\u306e\u9078\u629e\u306f\u3001\u6027\u80fd\u3001\u30b3\u30b9\u30c8\u3001\u305d\u3057\u3066\u8010\u7528\u5e74\u6570\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u306a\u9078\u629e\u80a2\u306f\u6b21\u306e2\u3064\u3067\u3059\u3002 <strong>65Mn\u70ad\u7d20\u3070\u306d\u92fc<\/strong> \u305d\u3057\u3066 <strong>50CrVA\u5408\u91d1\u3070\u306d\u92fc<\/strong>\u3069\u3061\u3089\u3082\u65e5\u672c\u5de5\u696d\u898f\u683c\uff08JIS\uff09\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u7279\u6027\u306f\u5927\u304d\u304f\u7570\u306a\u308b\u305f\u3081\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001 <em>\u5316\u5b66\u7d44\u6210<\/em>, <em>\u6a5f\u68b0\u7684\u7279\u6027<\/em>, <em>\u71b1\u51e6\u7406\u7279\u6027<\/em>\u3001 \u305d\u3057\u3066 <em>\u6700\u9069\u306a\u4f7f\u7528\u4f8b<\/em> \u30cb\u30fc\u30ba\u306b\u5408\u3063\u305f\u9069\u5207\u306a\u7d20\u6750\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">65Mn \u30b9\u30d7\u30ea\u30f3\u30b0\u30b9\u30c1\u30fc\u30eb\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5316\u5b66\u7d44\u6210:<\/strong> \u70ad\u7d20\u542b\u6709\u91cf\u304c\u7d040.65%\u3067\u3001\u4e3b\u306a\u5408\u91d1\u5143\u7d20\u3068\u3057\u3066\u30de\u30f3\u30ac\u30f3\u3092\u542b\u3080\u9ad8\u70ad\u7d20\u92fc\u3002<\/li>\n\n\n\n<li><strong>\u6a5f\u68b0\u7684\u7279\u6027:<\/strong> \u5f37\u5ea6\u304c\u9ad8\u304f\u3001\u8010\u6469\u8017\u6027\u306b\u512a\u308c\u3001\u5f3e\u529b\u6027\u304c\u5f37\u3044\u3002<\/li>\n\n\n\n<li><strong>\u71b1\u51e6\u7406\uff1a<\/strong> \u6cb9\u713c\u304d\u5165\u308c\u3068\u6cb9\u713c\u304d\u623b\u3057\u306b\u3088\u308a\u786c\u5ea6\u3068\u8010\u75b2\u52b4\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5229\u70b9:<\/strong> \u30b3\u30b9\u30c8\u52b9\u7387\u304c\u9ad8\u304f\u3001\u5e83\u304f\u5165\u624b\u53ef\u80fd\u3067\u3001\u5f3e\u529b\u6027\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5236\u9650\u4e8b\u9805:<\/strong> \u5408\u91d1\u92fc\u306b\u6bd4\u3079\u3066\u976d\u6027\u304c\u4f4e\u304f\u3001\u8010\u9ad8\u6e29\u6027\u3082\u4f4e\u3044\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">50CrVA\u5408\u91d1\u3070\u306d\u92fc\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5316\u5b66\u7d44\u6210:<\/strong> \u30af\u30ed\u30e0\u30d0\u30ca\u30b8\u30a6\u30e0\u5408\u91d1\u92fc (\u976d\u6027\u3068\u5f37\u5ea6\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u70ad\u7d20\u3001Cr\u3001V \u3092\u7d04 0.50% \u914d\u5408)\u3002<\/li>\n\n\n\n<li><strong>\u6a5f\u68b0\u7684\u7279\u6027:<\/strong> \u512a\u308c\u305f\u976d\u6027\u3001\u512a\u308c\u305f\u8010\u75b2\u52b4\u6027\u3001\u51e6\u7406\u5f8c\u306e\u9ad8\u3044\u786c\u5ea6\u3002<\/li>\n\n\n\n<li><strong>\u71b1\u51e6\u7406\uff1a<\/strong> \u713c\u5165\u308c\u713c\u623b\u3057\u3001\u9ad8\u6e29\u713c\u623b\u3057\u306b\u3088\u308a\u5f3e\u529b\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5229\u70b9:<\/strong> \u91cd\u3044\u8ca0\u8377\u306b\u8010\u3048\u3001\u9ad8\u30b9\u30c8\u30ec\u30b9\u3084\u5468\u671f\u7684\u75b2\u52b4\u306b\u8010\u6027\u304c\u3042\u308a\u3001\u9ad8\u6e29\u3067\u3082\u512a\u308c\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5236\u9650\u4e8b\u9805:<\/strong> 65Mn \u3088\u308a\u3082\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u3001\u5165\u624b\u6027\u304c\u4f4e\u3044\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">65Mn\u306850CrVA\u306e\u4e3b\u306a\u9055\u3044<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8ca1\u7523<\/th><th>65Mn<\/th><th>50CrVA<\/th><\/tr><\/thead><tbody><tr><td>\u5f37\u3055<\/td><td>\u9ad8\u3044<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><\/tr><tr><td>\u5f37\u976d\u3055<\/td><td>\u9069\u5ea6<\/td><td>\u9ad8\u3044<\/td><\/tr><tr><td>\u75b2\u52b4\u8010\u6027<\/td><td>\u826f\u3044<\/td><td>\u7d20\u6674\u3089\u3057\u3044<\/td><\/tr><tr><td>\u6599\u91d1<\/td><td>\u3088\u308a\u4f4e\u3044<\/td><td>\u3088\u308a\u9ad8\u3044<\/td><\/tr><tr><td>\u8010\u9ad8\u6e29\u6027<\/td><td>\u9069\u5ea6<\/td><td>\u9ad8\u3044<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u9069\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">65Mn\u306f\u6b21\u306e\u5834\u5408\u306b\u6700\u9069\u3067\u3059:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u822c\u7684\u306a\u6a5f\u68b0\u3070\u306d<\/li>\n\n\n\n<li>\u8fb2\u696d\u6a5f\u68b0<\/li>\n\n\n\n<li>\u4e2d\u8377\u91cd\u30c0\u30a4\u30b9\u30d7\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u30b3\u30b9\u30c8\u91cd\u8996\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">50CrVA \u306f\u6b21\u306e\u5834\u5408\u306b\u6700\u9069\u3067\u3059\u3002<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u91cd\u8377\u91cd\u30c0\u30a4\u30b9\u30d7\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u81ea\u52d5\u8eca\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0<\/li>\n\n\n\n<li>\u9ad8\u5468\u6ce2\u30b9\u30bf\u30f3\u30d4\u30f3\u30b0\u91d1\u578b<\/li>\n\n\n\n<li>\u904e\u9177\u306a\u52d5\u4f5c\u74b0\u5883<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u9069\u5207\u306a\u7d20\u6750\u306e\u9078\u3073\u65b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">JIS \u3070\u306d\u6750\u6599\u3092\u9078\u629e\u3059\u308b\u3068\u304d\u306f\u3001\u6b21\u306e\u70b9\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8ca0\u8377\u8981\u4ef6\u3068\u30b5\u30a4\u30af\u30eb\u5bff\u547d<\/li>\n\n\n\n<li>\u52d5\u4f5c\u6e29\u5ea6\u304a\u3088\u3073\u74b0\u5883<\/li>\n\n\n\n<li>\u4e88\u7b97\u306e\u5236\u7d04<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3068\u4ea4\u63db\u306e\u983b\u5ea6<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u8ad6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">65Mn\u306850CrVA\u306f\u3069\u3061\u3089\u3082JIS\u3070\u306d\u3068\u3057\u3066\u512a\u308c\u305f\u6750\u8cea\u3067\u3059\u304c\u3001\u305d\u306e\u6027\u80fd\u306f\u7570\u306a\u308a\u307e\u3059\u3002 <strong>65Mn<\/strong> \u4e00\u822c\u7684\u306a\u7528\u9014\u306b\u9069\u3057\u305f\u5f37\u5ea6\u3092\u5099\u3048\u305f\u30b3\u30b9\u30c8\u52b9\u7387\u306e\u9ad8\u3044\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 <strong>50CrVA<\/strong> \u904e\u9177\u306a\u4f7f\u7528\u6761\u4ef6\u306b\u3082\u8010\u3048\u3046\u308b\u512a\u308c\u305f\u976d\u6027\u3068\u8010\u75b2\u52b4\u6027\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u6700\u9069\u306a\u88fd\u54c1\u3092\u304a\u9078\u3073\u3044\u305f\u3060\u304f\u306b\u306f\u3001\u304a\u5ba2\u69d8\u306e\u5177\u4f53\u7684\u306a\u8981\u4ef6\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u57f7\u7b46\u8005\uff1a\u6148\u6e13\u4e01\u5229\u30b9\u30d7\u30ea\u30f3\u30b0\u682a\u5f0f\u4f1a\u793e \u2014 JIS\u898f\u683c\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u5c02\u9580\u5bb6<\/em><br>\ud83d\udce7 \u304a\u554f\u3044\u5408\u308f\u305b: <a href=\"mailto:jackchen@dinglidiespring.com\">jackchen@dinglidiespring.com<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>When it comes to manufacturing JIS standard springs, material selection plays a crucial role in performance, cost, and service life. Two of the most common choices are 65Mn carbon spring steel and 50CrVA alloy spring steel. While both meet Japanese Industrial Standard (JIS) requirements, their properties differ significantly, making each suitable for different applications. In this guide, we will break down their chemical composition, mechanical properties, heat treatment characteristics, and best use cases so you can choose the right material for your needs. What is 65Mn Spring Steel? What is 50CrVA Alloy Spring Steel? Key Differences Between 65Mn and 50CrVA Property 65Mn 50CrVA Strength High Very High Toughness Moderate High [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":7563,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-die-spring"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs - dinglispring<\/title>\n<meta name=\"description\" content=\"Discover the key differences between 65Mn and 50CrVA for JIS springs \u2014 from strength and toughness to fatigue resistance and best applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dinglidiespring.com\/ja\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs - dinglispring\" \/>\n<meta property=\"og:description\" content=\"Discover the key differences between 65Mn and 50CrVA for JIS springs \u2014 from strength and toughness to fatigue resistance and best applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dinglidiespring.com\/ja\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/\" \/>\n<meta property=\"og:site_name\" content=\"dinglispring\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61557424736593\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-09T08:46:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-09T08:47:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/08\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"lu, chang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"lu, chang\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/\"},\"author\":{\"name\":\"lu, chang\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#\\\/schema\\\/person\\\/29f726d7c645f0a5f1e49d6cdc0968ca\"},\"headline\":\"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs\",\"datePublished\":\"2025-08-09T08:46:38+00:00\",\"dateModified\":\"2025-08-09T08:47:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/\"},\"wordCount\":362,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dinglidiespring.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg\",\"articleSection\":[\"Die spring\"],\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/\",\"url\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/\",\"name\":\"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs - dinglispring\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dinglidiespring.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg\",\"datePublished\":\"2025-08-09T08:46:38+00:00\",\"dateModified\":\"2025-08-09T08:47:12+00:00\",\"description\":\"Discover the key differences between 65Mn and 50CrVA for JIS springs \u2014 from strength and toughness to fatigue resistance and best applications.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#primaryimage\",\"url\":\"https:\\\/\\\/dinglidiespring.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg\",\"contentUrl\":\"https:\\\/\\\/dinglidiespring.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg\",\"width\":800,\"height\":800,\"caption\":\"High-quality JIS die springs in multiple colors, made from durable 65Mn and 50CrVA materials.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/dinglidiespring.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#website\",\"url\":\"https:\\\/\\\/dinglidiespring.com\\\/\",\"name\":\"dinglispring\",\"description\":\"Dingli has been supplying high quality springs and wires for 30 years. We offer fast delivery as well as professional design support. Please contact us to learn more about our capabilities and services.\",\"publisher\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/dinglidiespring.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#organization\",\"name\":\"dinglispring\",\"url\":\"https:\\\/\\\/dinglidiespring.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/dinglidiespring.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/dinglidiespringlogo.png\",\"contentUrl\":\"https:\\\/\\\/dinglidiespring.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/dinglidiespringlogo.png\",\"width\":400,\"height\":100,\"caption\":\"dinglispring\"},\"image\":{\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61557424736593\",\"https:\\\/\\\/www.youtube.com\\\/@dinglidiespring\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/dinglidiespring.com\\\/#\\\/schema\\\/person\\\/29f726d7c645f0a5f1e49d6cdc0968ca\",\"name\":\"lu, chang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8bd38910d64dfdc80d38f843eb7f9318a752da4ba7272895c00274e374adfc59?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8bd38910d64dfdc80d38f843eb7f9318a752da4ba7272895c00274e374adfc59?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8bd38910d64dfdc80d38f843eb7f9318a752da4ba7272895c00274e374adfc59?s=96&d=mm&r=g\",\"caption\":\"lu, chang\"},\"sameAs\":[\"https:\\\/\\\/dinglidiespring.com\\\/\"],\"url\":\"https:\\\/\\\/dinglidiespring.com\\\/ja\\\/author\\\/dinglidiespring\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"65Mn\u306850CrVA\u306e\u89e3\u8aac\uff1aJIS\u3070\u306d\u306e\u5f37\u5ea6\u3001\u8010\u4e45\u6027\u3001\u6700\u9069\u306a\u7528\u9014 - dinglispring","description":"JIS \u30b9\u30d7\u30ea\u30f3\u30b0\u306e 65Mn \u3068 50CrVA \u306e\u4e3b\u306a\u9055\u3044 (\u5f37\u5ea6\u3001\u976d\u6027\u3001\u75b2\u52b4\u8010\u6027\u3001\u6700\u9069\u306a\u7528\u9014\u307e\u3067) \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dinglidiespring.com\/ja\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/","og_locale":"ja_JP","og_type":"article","og_title":"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs - dinglispring","og_description":"Discover the key differences between 65Mn and 50CrVA for JIS springs \u2014 from strength and toughness to fatigue resistance and best applications.","og_url":"https:\/\/dinglidiespring.com\/ja\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/","og_site_name":"dinglispring","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61557424736593","article_published_time":"2025-08-09T08:46:38+00:00","article_modified_time":"2025-08-09T08:47:12+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/08\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg","type":"image\/jpeg"}],"author":"lu, chang","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"lu, chang","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"2\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#article","isPartOf":{"@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/"},"author":{"name":"lu, chang","@id":"https:\/\/dinglidiespring.com\/#\/schema\/person\/29f726d7c645f0a5f1e49d6cdc0968ca"},"headline":"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs","datePublished":"2025-08-09T08:46:38+00:00","dateModified":"2025-08-09T08:47:12+00:00","mainEntityOfPage":{"@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/"},"wordCount":362,"commentCount":0,"publisher":{"@id":"https:\/\/dinglidiespring.com\/#organization"},"image":{"@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#primaryimage"},"thumbnailUrl":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/08\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg","articleSection":["Die spring"],"inLanguage":"ja","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/","url":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/","name":"65Mn\u306850CrVA\u306e\u89e3\u8aac\uff1aJIS\u3070\u306d\u306e\u5f37\u5ea6\u3001\u8010\u4e45\u6027\u3001\u6700\u9069\u306a\u7528\u9014 - dinglispring","isPartOf":{"@id":"https:\/\/dinglidiespring.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#primaryimage"},"image":{"@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#primaryimage"},"thumbnailUrl":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/08\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg","datePublished":"2025-08-09T08:46:38+00:00","dateModified":"2025-08-09T08:47:12+00:00","description":"JIS \u30b9\u30d7\u30ea\u30f3\u30b0\u306e 65Mn \u3068 50CrVA \u306e\u4e3b\u306a\u9055\u3044 (\u5f37\u5ea6\u3001\u976d\u6027\u3001\u75b2\u52b4\u8010\u6027\u3001\u6700\u9069\u306a\u7528\u9014\u307e\u3067) \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002","breadcrumb":{"@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#primaryimage","url":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/08\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg","contentUrl":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/08\/65mn-vs-50crva-jis-die-springs-color-coded-1754728860.jpg","width":800,"height":800,"caption":"High-quality JIS die springs in multiple colors, made from durable 65Mn and 50CrVA materials."},{"@type":"BreadcrumbList","@id":"https:\/\/dinglidiespring.com\/65mn-and-50crva-explained-strength-durability-and-best-uses-for-jis-springs\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/dinglidiespring.com\/"},{"@type":"ListItem","position":2,"name":"65Mn and 50CrVA Explained: Strength, Durability, and Best Uses for JIS Springs"}]},{"@type":"WebSite","@id":"https:\/\/dinglidiespring.com\/#website","url":"https:\/\/dinglidiespring.com\/","name":"\u30c7\u30a3\u30f3\u30b0\u30ea\u30b9\u30d7\u30ea\u30f3\u30b0","description":"Dingli\u306f30\u5e74\u306b\u308f\u305f\u308a\u3001\u9ad8\u54c1\u8cea\u306e\u30d0\u30cd\u3068\u30ef\u30a4\u30e4\u30fc\u3092\u4f9b\u7d66\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u8fc5\u901f\u306a\u7d0d\u54c1\u3068\u5c02\u9580\u7684\u306a\u8a2d\u8a08\u30b5\u30dd\u30fc\u30c8\u3092\u3054\u63d0\u4f9b\u3044\u305f\u3057\u307e\u3059\u3002\u5f53\u793e\u306e\u80fd\u529b\u3068\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u306f\u3001\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002","publisher":{"@id":"https:\/\/dinglidiespring.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dinglidiespring.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/dinglidiespring.com\/#organization","name":"\u30c7\u30a3\u30f3\u30b0\u30ea\u30b9\u30d7\u30ea\u30f3\u30b0","url":"https:\/\/dinglidiespring.com\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/dinglidiespring.com\/#\/schema\/logo\/image\/","url":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/05\/dinglidiespringlogo.png","contentUrl":"https:\/\/dinglidiespring.com\/wp-content\/uploads\/2025\/05\/dinglidiespringlogo.png","width":400,"height":100,"caption":"dinglispring"},"image":{"@id":"https:\/\/dinglidiespring.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61557424736593","https:\/\/www.youtube.com\/@dinglidiespring"]},{"@type":"Person","@id":"https:\/\/dinglidiespring.com\/#\/schema\/person\/29f726d7c645f0a5f1e49d6cdc0968ca","name":"\u30eb\u30fc\u3001\u30c1\u30e3\u30f3","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/secure.gravatar.com\/avatar\/8bd38910d64dfdc80d38f843eb7f9318a752da4ba7272895c00274e374adfc59?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8bd38910d64dfdc80d38f843eb7f9318a752da4ba7272895c00274e374adfc59?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8bd38910d64dfdc80d38f843eb7f9318a752da4ba7272895c00274e374adfc59?s=96&d=mm&r=g","caption":"lu, chang"},"sameAs":["https:\/\/dinglidiespring.com\/"],"url":"https:\/\/dinglidiespring.com\/ja\/author\/dinglidiespring\/"}]}},"_links":{"self":[{"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/posts\/7562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/comments?post=7562"}],"version-history":[{"count":0,"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/posts\/7562\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/media\/7563"}],"wp:attachment":[{"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/media?parent=7562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/categories?post=7562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dinglidiespring.com\/ja\/wp-json\/wp\/v2\/tags?post=7562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}