{"id":3665,"date":"2026-04-16T16:01:52","date_gmt":"2026-04-16T08:01:52","guid":{"rendered":"https:\/\/www.mingchifrp.com\/?post_type=product&#038;p=3665"},"modified":"2026-08-05T13:43:59","modified_gmt":"2026-08-05T05:43:59","slug":"frp-square-tube","status":"publish","type":"product","link":"https:\/\/www.mingchifrp.com\/ru\/product\/frp-square-tube\/","title":{"rendered":"\u041a\u0432\u0430\u0434\u0440\u0430\u0442\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u0424\u0420\u041f 40x40x3 \u043c\u043c"},"content":{"rendered":"<h2 style=\"text-align: center;\">\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430<\/h2>\n<h3>1.40x40x3mm FRP Square Tube Introduction<\/h3>\n<p>40x40x3mm FRP Square Tube is a high\u2011strength pultruded fiberglass square tube designed for versatile industrial structural applications. As a corrosion\u2011proof, lightweight, and long\u2011lasting alternative to steel square tubes, our 40x40x3mm <strong><a href=\"https:\/\/www.mingchifrp.com\/ru\/product\/fiberglass-square-tube\/\">FRP square tube<\/a><\/strong> provides reliable structural strength, stability, and durability, making it the ideal solution for construction frameworks, engineering supports, chemical plant structures, and wastewater treatment projects worldwide.<\/p>\n<h3>2.Key Advantages of Our 40x40x3mm FRP Square Tube<\/h3>\n<ul>\n<li><strong>\u0412\u044b\u0441\u043e\u043a\u0430\u044f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u0438 \u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c<\/strong>: The 40x40x3mm profile ensures excellent rigidity and load-bearing performance for medium\u2011duty structural and support applications.<\/li>\n<li><strong>\u0412\u044b\u0441\u043e\u043a\u0430\u044f \u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u043a \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u0438 \u0438 \u0445\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0432\u0435\u0449\u0435\u0441\u0442\u0432\u0430\u043c<\/strong>: Resistant to acids, alkalis, saltwater, oil, and UV; no rust, no rot, no painting required, ideal for long\u2011term use in harsh environments.<\/li>\n<li><strong>\u0412\u044b\u0441\u043e\u043a\u0430\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c \u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0441\u0442\u0438<\/strong>: Non\u2011conductive, fire\u2011retardant optional, safe for use in electrical areas and high\u2011risk industrial zones.<\/li>\n<li><strong>\u041b\u0435\u0433\u043a\u0438\u0439 \u0432\u0435\u0441 \u0438 \u043f\u0440\u043e\u0441\u0442\u0430\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430<\/strong>: Much lighter than steel tubes, lowering transportation and labor costs; can be easily cut, drilled, and assembled on\u2011site.<\/li>\n<li><strong>\u041c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0435 \u0438 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0441\u0440\u043e\u043a \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438<\/strong>: Minimal upkeep required, service life up to 20+ years, greatly reducing overall lifecycle costs.<\/li>\n<\/ul>\n<h3>3. \u0428\u0438\u0440\u043e\u043a\u0438\u0439 \u0441\u043f\u0435\u043a\u0442\u0440 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f<\/h3>\n<div>Our 40x40x3mm FRP Square Tube is widely used in various industrial and construction environments:<\/div>\n<ul>\n<li><strong>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u0438\u0432\u043d\u044b\u0435 \u043e\u043f\u043e\u0440\u044b \u0438 \u043a\u0430\u0440\u043a\u0430\u0441\u044b<\/strong>: Building frameworks, equipment supports, handrails, guardrails and engineering structures.<\/li>\n<li><strong>\u041c\u043e\u0440\u0441\u043a\u0430\u044f \u0438 \u043e\u0444\u0448\u043e\u0440\u043d\u0430\u044f \u0441\u0444\u0435\u0440\u0430<\/strong>: Dock fittings, boat structures, coastal facilities and offshore platform components.<\/li>\n<li><strong>\u0425\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0438 \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u044e\u0449\u0438\u0435 \u043f\u0440\u0435\u0434\u043f\u0440\u0438\u044f\u0442\u0438\u044f<\/strong>: Corrosive area frameworks, equipment guards and workshop structural parts.<\/li>\n<li><strong>\u041e\u0447\u0438\u0441\u0442\u043a\u0430 \u0441\u0442\u043e\u0447\u043d\u044b\u0445 \u0438 \u043f\u0440\u0438\u0440\u043e\u0434\u043d\u044b\u0445 \u0432\u043e\u0434<\/strong>: Plant structures, tank surrounds and drainage system components.<\/li>\n<li><strong>\u0421\u0442\u0440\u043e\u0438\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u043e \u0438 \u043c\u0443\u043d\u0438\u0446\u0438\u043f\u0430\u043b\u044c\u043d\u0430\u044f \u0441\u0444\u0435\u0440\u0430<\/strong>: Safety barriers, trench supports, building profiles and public facility parts.<\/li>\n<\/ul>\n<h3>4. \u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 (\u041d\u0430\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0435)<\/h3>\n<ul>\n<li><strong>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/strong>: High-quality unsaturated polyester resin \/ vinyl ester resin reinforced with E-glass fibers<\/li>\n<li><strong>\u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441<\/strong>: Pultruded<\/li>\n<li><strong>\u0420\u0430\u0437\u043c\u0435\u0440 \u043f\u0440\u043e\u0444\u0438\u043b\u044f<\/strong>: 40x40x3 mm (customizable upon request)<\/li>\n<li><strong>\u041e\u0433\u043d\u0435\u0441\u0442\u043e\u0439\u043a\u043e\u0441\u0442\u044c<\/strong>: Excellent<\/li>\n<li><strong>\u0413\u0440\u0443\u0437\u043e\u043f\u043e\u0434\u044a\u0435\u043c\u043d\u043e\u0441\u0442\u044c<\/strong>: Suitable for medium to heavy structural loads<\/li>\n<li><strong>load rating of frp square tube<\/strong>:Allowable Bending 75\u2013125 MPa, Compression 50\u201375 MPa, Tension 60\u201390 MPa; Typical span load: 2.5\u20133.5 kN\/m\u00b2 at 1.0\u20131.2 m, 1.8\u20132.8 kN\/m\u00b2 at 1.2\u20131.5 m<\/li>\n<li><strong>\u0422\u0435\u043a\u0441\u0442\u0443\u0440\u0430 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438<\/strong>: Smooth, gritted anti-slip optional<\/li>\n<li><strong>\u0412\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u0440\u0430\u0441\u0446\u0432\u0435\u0442\u043a\u0438<\/strong>: Yellow, gray, green, orange, custom RAL colors<\/li>\n<li><strong>\u041c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430<\/strong>: High impact resistance, fatigue resistance, and strong structural stability<\/li>\n<li><strong>\u0421\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b<\/strong>: ISO 9001, CE, ASTM standard<\/li>\n<\/ul>\n<h3>5.Why Choose Our 40x40x3mm FRP Square Tube?<\/h3>\n<p>As a <a href=\"https:\/\/www.mingchifrp.com\/ru\/\"><strong>professional manufacturer of FRP<\/strong><\/a> composite products, we produce reliable 40x40x3mm FRP Square Tube that meets strict international quality standards. We support both standard and customized projects with professional technical support, stable production, and competitive pricing.<\/p>\n<p><strong><a href=\"https:\/\/www.mingchifrp.com\/ru\/%d1%81%d0%b2%d1%8f%d0%b6%d0%b8%d1%82%d0%b5%d1%81%d1%8c-%d1%81-%d0%bd%d0%b0%d0%bc%d0%b8\/\">\u0421\u0432\u044f\u0436\u0438\u0442\u0435\u0441\u044c \u0441 \u043d\u0430\u043c\u0438<\/a> today to discuss your 40x40x3mm FRP Square Tube needs and get a free quote!<\/strong><\/p>\n<div style=\"padding-left: 80px;\"><\/div>\n<h2 style=\"text-align: center;\">\u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u0430\u044f \u043b\u0438\u043d\u0438\u044f<\/h2>\n<div><\/div>\n<div>We produce Mingchi 40x40x3mm FRP Square Tube on fully automated pultruded production lines, with stable and consistent process control throughout manufacturing. We implement strict quality inspections from raw material selection to final packaging, ensuring every tube delivers uniform quality and dependable performance for all kinds of industrial and engineering applications.<\/div>\n<div style=\"padding-left: 40px;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-2637 alignleft\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-300x190.jpg\" alt=\"\" width=\"344\" height=\"218\" \/> <img decoding=\"async\" class=\"wp-image-2588 alignleft\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-300x175.webp\" alt=\"\" width=\"375\" height=\"219\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-300x175.webp 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-1024x599.webp 1024w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-768x449.webp 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-1536x898.webp 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-700x409.webp 700w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3.webp 1707w\" sizes=\"(max-width: 375px) 100vw, 375px\" \/><\/div>","protected":false},"excerpt":{"rendered":"<p>40x40x3mm FRP square tube delivers robust structural support with a lightweight, corrosion-resistant design. It outperforms steel in harsh environments, requires minimal maintenance, and is perfect for construction, industrial frameworks and engineering applications.<\/p>","protected":false},"featured_media":3666,"comment_status":"open","ping_status":"closed","template":"","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":"default","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":"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":"","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-4)","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-4)","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-4)","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":""}}},"product_brand":[],"product_cat":[40,43],"product_tag":[],"class_list":["post-3665","product","type-product","status-publish","has-post-thumbnail","product_cat-frp-profiles","product_cat-frp-square-tube","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/product\/3665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/comments?post=3665"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/media\/3666"}],"wp:attachment":[{"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/media?parent=3665"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/product_brand?post=3665"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/product_cat?post=3665"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ru\/wp-json\/wp\/v2\/product_tag?post=3665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}