{"id":12132,"date":"2025-03-27T01:38:44","date_gmt":"2025-03-27T01:38:44","guid":{"rendered":"https:\/\/qilusteelgroup.com\/?p=12132"},"modified":"2025-03-27T01:38:46","modified_gmt":"2025-03-27T01:38:46","slug":"4340-alloy-steel-composition-strength-and-durability","status":"publish","type":"post","link":"https:\/\/qilusteelgroup.com\/ru\/4340-alloy-steel-composition-strength-and-durability\/","title":{"rendered":"4340 Alloy Steel Composition: Strength and Durability"},"content":{"rendered":"<p>Welcome to My Blog!<\/p>\n\n\n\n<p>Before we dive into the content, I&#8217;d love for you to join me on my social media platforms where I share more insights, engage with the community, and post updates. Here&#8217;s how you can connect with me:<\/p>\n\n\n\n<p>Facebook\uff1a<a href=\"https:\/\/www.facebook.com\/profile.php?id=100087990137347\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/profile.php?id=100087990137347<\/a><\/p>\n\n\n\n<p>LinkedIn\uff1a<a href=\"https:\/\/www.linkedin.com\/company\/89825762\/admin\/dashboard\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.linkedin.com\/company\/89825762\/admin\/dashboard\/<\/a><\/p>\n\n\n\n<p>YouTube\uff1a<a href=\"http:\/\/www.youtube.com\/@carbonsteelsupply-kj9lw\" target=\"_blank\" rel=\"noopener\">www.youtube.com\/@carbonsteelsupply-kj9lw<\/a><\/p>\n\n\n\n<p>TikTok\uff1a<a href=\"http:\/\/www.tiktok.com\/@carbonsteelsupply\" target=\"_blank\" rel=\"noopener\">www.tiktok.com\/@carbonsteelsupply<\/a><\/p>\n\n\n\n<p>Now, let&#8217;s get started on our journey together. I hope you find the content here insightful, engaging, and valuable.<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#introduction\">\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<\/a><\/li><li><a href=\"#chemical-composition-of-4340-alloy-steel\">Chemical Composition of 4340 Alloy Steel<\/a><\/li><li><a href=\"#mechanical-properties-of-4340-alloy-steel\">Mechanical Properties of 4340 Alloy Steel<\/a><\/li><li><a href=\"#heat-treatment-and-processing-of-4340-alloy-steel\">Heat Treatment and Processing of 4340 Alloy Steel<\/a><\/li><li><a href=\"#applications-of-4340-alloy-steel\">Applications of 4340 Alloy Steel<\/a><\/li><li><a href=\"#advantages-of-4340-alloy-steel\">Advantages of 4340 Alloy Steel<\/a><\/li><li><a href=\"#conclusion\">\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/a><\/li><li><a href=\"#faq\">\u0427\u0410\u0421\u0422\u041e \u0417\u0410\u0414\u0410\u0412\u0410\u0415\u041c\u042b\u0415 \u0412\u041e\u041f\u0420\u041e\u0421\u042b<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"introduction\"><a href=\"https:\/\/qilusteelgroup.com\/ru\/\">\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<\/a><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"535\" src=\"http:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340.avif\" alt=\"4340 alloy steel composition\" class=\"wp-image-12133\" srcset=\"https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340.avif 800w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-300x201.jpg 300w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-768x514.jpg 768w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-18x12.jpg 18w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-500x334.jpg 500w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>4340 alloy steel is a high-strength, low-alloy steel known for its excellent toughness, wear resistance, and durability. It is widely used in industries such as aerospace, automotive, and manufacturing, where high-performance materials are essential. The 4340 alloy steel composition includes elements such as nickel, chromium, and molybdenum, which enhance its mechanical properties and make it suitable for demanding applications.<\/p>\n\n\n\n<p>Understanding the 4340 alloy steel composition is crucial for selecting the right material for high-stress environments. This article explores the chemical composition, mechanical properties, applications, heat treatment methods, and advantages of 4340 alloy steel. By the end, you will have a comprehensive understanding of why this steel is favored in industrial applications.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"chemical-composition-of-4340-alloy-steel\">Chemical Composition of 4340 Alloy Steel<\/h2>\n\n\n\n<p>The superior properties of 4340 alloy steel stem from its carefully balanced chemical composition. Each element in the alloy contributes to its overall performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"key-elements-in-4340-alloy-steel\"><strong>Key Elements in 4340 Alloy Steel<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carbon (C): Enhances hardness and strength.<\/li>\n\n\n\n<li>Manganese (Mn): Improves hardenability and wear resistance.<\/li>\n\n\n\n<li>Nickel (Ni): Adds toughness and corrosion resistance.<\/li>\n\n\n\n<li>Chromium (Cr): Increases hardness, wear resistance, and oxidation resistance.<\/li>\n\n\n\n<li>Molybdenum (Mo): Enhances strength, toughness, and creep resistance.<\/li>\n\n\n\n<li>Silicon (Si): Improves strength and oxidation resistance.<\/li>\n\n\n\n<li>Sulfur (S) and Phosphorus (P): Present in trace amounts; excessive amounts can weaken the steel.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"mechanical-properties-of-4340-alloy-steel\">Mechanical Properties of 4340 Alloy Steel<\/h2>\n\n\n\n<p>4340 alloy steel is known for its exceptional strength, making it suitable for high-performance applications. The table below outlines the typical mechanical properties of 4340 alloy steel in different conditions.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Property<\/th><th>Annealed Condition<\/th><th>Hardened &amp; Tempered Condition<\/th><\/tr><\/thead><tbody><tr><td>Tensile Strength (MPa)<\/td><td>850-1000<\/td><td>1400-1600<\/td><\/tr><tr><td>Yield Strength (MPa)<\/td><td>600-800<\/td><td>1200-1400<\/td><\/tr><tr><td>Hardness (HRC)<\/td><td>22-30<\/td><td>45-55<\/td><\/tr><tr><td>Elongation (%)<\/td><td>15-20<\/td><td>10-15<\/td><\/tr><tr><td>Impact Toughness (J)<\/td><td>High<\/td><td>Moderate<\/td><\/tr><tr><td>Fatigue Strength (MPa)<\/td><td>500-700<\/td><td>800-1000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The high tensile strength and impact resistance of 4340 alloy steel composition make it ideal for heavy-duty applications requiring reliability under extreme conditions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"heat-treatment-and-processing-of-4340-alloy-steel\">Heat Treatment and Processing of 4340 Alloy Steel<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"570\" height=\"360\" src=\"http:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-1.avif\" alt=\"4340 alloy steel composition\" class=\"wp-image-12134\" srcset=\"https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-1.avif 570w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-1-300x189.jpg 300w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-1-18x12.jpg 18w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-1-500x316.jpg 500w\" sizes=\"auto, (max-width: 570px) 100vw, 570px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"570\" height=\"360\" src=\"http:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-3.avif\" alt=\"4340 alloy steel composition\" class=\"wp-image-12135\" srcset=\"https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-3.avif 570w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-3-300x189.jpg 300w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-3-18x12.jpg 18w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2025\/03\/4340-3-500x316.jpg 500w\" sizes=\"auto, (max-width: 570px) 100vw, 570px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>The properties of 4340 alloy steel can be enhanced through heat treatment processes such as annealing, quenching, and tempering. These processes optimize its mechanical properties for specific industrial applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"annealing\"><strong>\u041e\u0442\u0436\u0438\u0433<\/strong><\/h3>\n\n\n\n<p>Annealing involves heating 4340 alloy steel to approximately 830\u00b0C (1525\u00b0F) and then slowly cooling it to improve machinability and reduce hardness.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"quenching-and-tempering\"><strong>Quenching and Tempering<\/strong><\/h3>\n\n\n\n<p>This process increases hardness and strength by heating the steel to 845\u00b0C (1550\u00b0F), followed by rapid cooling (quenching) in oil or water and then tempering at 200-600\u00b0C (400-1100\u00b0F).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"normalizing\"><strong>\u041d\u043e\u0440\u043c\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f<\/strong><\/h3>\n\n\n\n<p>Normalizing involves heating the steel to around 900\u00b0C (1650\u00b0F) and air cooling to refine the grain structure, improving toughness and uniformity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"case-hardening\"><strong>\u0417\u0430\u043a\u0430\u043b\u043a\u0430 \u043a\u043e\u0440\u043f\u0443\u0441\u0430<\/strong><\/h3>\n\n\n\n<p>For applications requiring a hard outer surface, case hardening processes such as carburizing or nitriding can be applied to 4340 alloy steel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"applications-of-4340-alloy-steel\">Applications of 4340 Alloy Steel<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Discover the Strength of QILUSpecial steel | Quality Steel for Every Need\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/Jkh3HWPDJi4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Due to its outstanding strength and toughness, 4340 alloy steel composition is widely used in industries where durability is a top priority.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aerospace-industry\"><strong>\u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aircraft landing gear<\/li>\n\n\n\n<li>Structural components<\/li>\n\n\n\n<li>Engine shafts<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"automotive-industry\"><strong>\u0410\u0432\u0442\u043e\u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-performance gears and crankshafts<\/li>\n\n\n\n<li>Heavy-duty suspension components<\/li>\n\n\n\n<li>Connecting rods<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"manufacturing-and-machinery\"><strong>Manufacturing and Machinery<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-strength fasteners<\/li>\n\n\n\n<li>Hydraulic machinery components<\/li>\n\n\n\n<li>Molds and dies<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"defense-and-military-applications\"><strong>Defense and Military Applications<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Armor plating<\/li>\n\n\n\n<li>Missile components<\/li>\n\n\n\n<li>High-strength weapon systems<\/li>\n<\/ul>\n\n\n\n<p>The versatility of 4340 alloy steel composition allows it to perform reliably in extreme environments, making it a preferred choice across various sectors.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"advantages-of-4340-alloy-steel\">Advantages of 4340 Alloy Steel<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"570\" height=\"360\" src=\"http:\/\/qilusteelgroup.com\/wp-content\/uploads\/2024\/11\/4340-2.jpg\" alt=\"4340 alloy steel composition\" class=\"wp-image-10758\" style=\"width:659px;height:auto\" srcset=\"https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2024\/11\/4340-2.jpg 570w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2024\/11\/4340-2-300x189.jpg 300w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2024\/11\/4340-2-18x12.jpg 18w, https:\/\/qilusteelgroup.com\/wp-content\/uploads\/2024\/11\/4340-2-500x316.jpg 500w\" sizes=\"auto, (max-width: 570px) 100vw, 570px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"high-strength-and-toughness\"><strong>High Strength and Toughness<\/strong><\/h3>\n\n\n\n<p>4340 alloy steel offers superior strength and toughness, allowing it to withstand heavy loads and high-stress conditions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"excellent-wear-resistance\"><strong>Excellent Wear Resistance<\/strong><\/h3>\n\n\n\n<p>Due to its nickel, chromium, and molybdenum content, 4340 alloy steel exhibits excellent resistance to wear and fatigue.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"good-machinability\"><strong>Good Machinability<\/strong><\/h3>\n\n\n\n<p>When properly annealed, 4340 alloy steel can be machined with relative ease, making it suitable for precision-engineered components.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"versatile-heat-treatment-capabilities\"><strong>Versatile Heat Treatment Capabilities<\/strong><\/h3>\n\n\n\n<p>4340 alloy steel can be customized through various heat treatment processes, enabling manufacturers to tailor its properties to specific applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"high-impact-resistance\"><strong>High Impact Resistance<\/strong><\/h3>\n\n\n\n<p>The high impact strength of 4340 alloy steel makes it ideal for shock-loaded components in machinery and vehicles.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h2>\n\n\n\n<p>4340 alloy steel is an exceptional high-strength material used in aerospace, automotive, and industrial applications. Its superior mechanical properties, wear resistance, and heat treatability make it a top choice for high-performance engineering solutions. Understanding 4340 alloy steel composition helps manufacturers select the best material for their needs, ensuring long-term durability and reliability.<\/p>\n\n\n\n<p>As industries continue to demand stronger and more resilient materials, 4340 alloy steel remains a leading option for applications requiring high toughness, fatigue resistance, and machinability. If you need more information, please feel free to contact us.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">\u0427\u0410\u0421\u0422\u041e \u0417\u0410\u0414\u0410\u0412\u0410\u0415\u041c\u042b\u0415 \u0412\u041e\u041f\u0420\u041e\u0421\u042b<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1743038723205\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>What makes 4340 alloy steel different from other steels?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>4340 alloy steel contains nickel, chromium, and molybdenum, which enhance its strength, toughness, and wear resistance compared to standard carbon steels.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038734047\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>Can 4340 alloy steel be welded?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Yes, but preheating and post-weld heat treatment are recommended to prevent cracking and ensure proper mechanical properties.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038742547\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>What is the best heat treatment for 4340 alloy steel?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Quenching and tempering provide the best combination of strength and toughness for most industrial applications.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038752699\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>How does 4340 alloy steel perform in high-temperature environments?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>It maintains good mechanical properties at moderate temperatures but may lose strength at very high temperatures, making it unsuitable for extreme heat applications.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038761874\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>Is 4340 alloy steel corrosion-resistant?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>It has moderate corrosion resistance but is not as corrosion-resistant as stainless steel. Protective coatings or surface treatments can improve its performance in corrosive environments.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038771734\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>What industries commonly use 4340 alloy steel?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Aerospace, automotive, defense, and manufacturing industries frequently use 4340 alloy steel for high-stress applications.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038789337\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>How does the hardness of 4340 alloy steel compare to other alloy steels?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>When properly heat-treated, 4340 alloy steel can reach hardness levels of 45-55 HRC, making it one of the toughest alloy steels available.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1743038795873\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\"><strong>What are the machining challenges of 4340 alloy steel?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>In its hardened state, 4340 alloy steel can be difficult to machine, requiring specialized tools and machining techniques to achieve precision results.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"what-makes-4340-alloy-steel-different-from-other-steels\"><\/h3>","protected":false},"excerpt":{"rendered":"<p>Understanding the 4340 alloy steel composition is crucial for selecting the right material for high-stress environments.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[32],"tags":[],"class_list":["post-12132","post","type-post","status-publish","format-standard","hentry","category-alloy-steel"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/posts\/12132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/comments?post=12132"}],"version-history":[{"count":0,"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/posts\/12132\/revisions"}],"wp:attachment":[{"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/media?parent=12132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/categories?post=12132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qilusteelgroup.com\/ru\/wp-json\/wp\/v2\/tags?post=12132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}