{"id":3741,"date":"2026-04-20T14:46:37","date_gmt":"2026-04-20T06:46:37","guid":{"rendered":"https:\/\/www.mingchifrp.com\/?post_type=product&#038;p=3741"},"modified":"2026-05-15T15:31:38","modified_gmt":"2026-05-15T07:31:38","slug":"40x4mm-fiberglass-flat-bar","status":"publish","type":"product","link":"https:\/\/www.mingchifrp.com\/ja\/product\/40x4mm-fiberglass-flat-bar\/","title":{"rendered":"40x4mm Fiberglass Flat Bar"},"content":{"rendered":"<h2 style=\"text-align: center;\">Product Introduction<\/h2>\n<h3>1.40x4mm Fiberglass Flat Bar Introduction<\/h3>\n<p style=\"text-align: left;\">40x4mm Fiberglass Flat Bar is a <a href=\"https:\/\/www.mingchifrp.com\/ja\/product-category\/frp-profiles\/\">high\u2011strength pultruded fiberglass<\/a> flat bar designed for versatile industrial structural reinforcement and supporting applications. As a corrosion\u2011proof, lightweight, and long\u2011lasting alternative to steel flat bars, our 40x4mm Fiberglass Flat Bar provides reliable structural strength, stability, and durability, making it the ideal solution for building reinforcements, engineering supports, equipment brackets, and industrial construction projects worldwide.<\/p>\n<h3>2.Key Advantages of Our 40x4mm Fiberglass Flat Bar<\/h3>\n<p>&nbsp;<\/p>\n<table>\n<colgroup>\n<col width=\"358\" \/>\n<col width=\"456\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>Feature (Product Characteristics)<\/td>\n<td>Description (Detailed Information)<\/td>\n<\/tr>\n<tr>\n<td>High Structural Strength &amp; Stability<\/td>\n<td>40x4mm flat profile ensures excellent rigidity and load-bearing performance for light to medium-duty structural reinforcement and supporting applications.<\/td>\n<\/tr>\n<tr>\n<td>Superior Corrosion &amp; Chemical Resistance<\/td>\n<td>Resistant to acids, alkalis, saltwater, oil, and UV; no rust, no rot, no painting required, ideal for long\u2011term use in harsh industrial and coastal environments.<\/td>\n<\/tr>\n<tr>\n<td>Excellent Safety &amp; Non\u2011Conductivity<\/td>\n<td>Non\u2011conductive, fire\u2011retardant optional, safe for use in power construction areas and high\u2011risk industrial zones.<\/td>\n<\/tr>\n<tr>\n<td>Lightweight &amp; Easy Installation<\/td>\n<td>Much lighter than steel flat bars, lowering transportation and labor costs; can be easily cut, drilled, and assembled on\u2011site without damaging structural integrity.<\/td>\n<\/tr>\n<tr>\n<td>Low Maintenance &amp; Long Service Life<\/td>\n<td>Minimal upkeep required, service life up to 20+ years, greatly reducing overall lifecycle costs and eliminating regular anti-rust maintenance.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>3.Wide Range of Industrial Applications<\/h3>\n<p>&nbsp;<\/p>\n<table>\n<colgroup>\n<col width=\"342\" \/>\n<col width=\"381\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>Application Scene<\/td>\n<td>Detailed Description<\/td>\n<\/tr>\n<tr>\n<td>Structural Reinforcement<\/td>\n<td>Building frame reinforcements, beam supports, and concrete reinforcement components.<\/td>\n<\/tr>\n<tr>\n<td>Marine &amp; Offshore<\/td>\n<td>Coastal facility reinforcements, boat structural parts, and offshore platform auxiliary supports.<\/td>\n<\/tr>\n<tr>\n<td>Chemical &amp; Processing Plants<\/td>\n<td>Corrosive environment equipment brackets, workshop reinforcements, and piping supports.<\/td>\n<\/tr>\n<tr>\n<td>Wastewater &amp; Water Treatment<\/td>\n<td>Sewage plant structure reinforcements, tank accessories, and drainage system supports.<\/td>\n<\/tr>\n<tr>\n<td>Construction &amp; Municipal<\/td>\n<td>Safety barrier reinforcements, handrail supports, and public facility structural parts.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>4.Technical Specifications (Customizable)<\/h3>\n<p>&nbsp;<\/p>\n<table>\n<colgroup>\n<col width=\"433\" \/>\n<col width=\"456\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>\u30d1\u30e9\u30e1\u30fc\u30bf<\/td>\n<td>\u5024<\/td>\n<\/tr>\n<tr>\n<td>\u7d20\u6750<\/td>\n<td>High-quality unsaturated polyester resin \/ vinyl ester resin reinforced with E-glass fibers<\/td>\n<\/tr>\n<tr>\n<td>Production Process<\/td>\n<td>Pultruded<\/td>\n<\/tr>\n<tr>\n<td>Profile Size<\/td>\n<td>40x4mm (customizable according to engineering requirements)<\/td>\n<\/tr>\n<tr>\n<td>Fire resistance<\/td>\n<td>\u512a\u308c\u305f<\/td>\n<\/tr>\n<tr>\n<td>Load capacity<\/td>\n<td>4.2\u20136.5 kN\/m<\/td>\n<\/tr>\n<tr>\n<td>Standard sizes<\/td>\n<td>3000mm \u2013 6000mm customizable length<\/td>\n<\/tr>\n<tr>\n<td>Span tables<\/td>\n<td>Average span 2.0 m<\/td>\n<\/tr>\n<tr>\n<td>Load tables<\/td>\n<td>3.8\u20135.9 kN\/m at 1.8\u20132.0 m span<\/td>\n<\/tr>\n<tr>\n<td>Texture<\/td>\n<td>Smooth, gritted anti\u2011slip, concave<\/td>\n<\/tr>\n<tr>\n<td>Color Options<\/td>\n<td>Yellow, gray, green, orange, custom RAL colors<\/td>\n<\/tr>\n<tr>\n<td>Mechanical Properties<\/td>\n<td>High impact resistance, fatigue resistance, strong structural stability and reinforcement performance<\/td>\n<\/tr>\n<tr>\n<td>Certifications<\/td>\n<td>ISO 9001, CE, ASTM standard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>5.Why Choose Our 40x4mm Fiberglass Flat Bar?<\/h3>\n<p style=\"text-align: left;\">As a professional manufacturer of FRP composite products, we produce reliable 40x4mm Fiberglass Flat Bar 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>Contact us today to discuss your 40x4mm Fiberglass Flat Bar needs and get a free quote!<\/strong><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignleft wp-image-923\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/2_29_11zon-300x196.jpg\" alt=\"Fiberglass Flat Bar, High Strength Corrosion Resistant FRP Flat Strip For Industrial Construction\" width=\"567\" height=\"370\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/2_29_11zon-300x196.jpg 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/2_29_11zon.jpg 380w\" sizes=\"(max-width: 567px) 100vw, 567px\" \/> <img decoding=\"async\" class=\"alignleft wp-image-925\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/21_31_11zon-300x195.jpg\" alt=\"Fiberglass Flat Bar, Durable Anti-corrosion Non-conductive FRP Flat Bar For Engineering Projects\" width=\"570\" height=\"370\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/21_31_11zon-300x195.jpg 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/21_31_11zon.jpg 592w\" sizes=\"(max-width: 570px) 100vw, 570px\" \/><\/p>\n<h2 style=\"text-align: center;\">Production Line<\/h2>\n<p>We produce Mingchi 40x4mm Fiberglass Flat Bar 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 flat bar delivers uniform quality and dependable performance for all kinds of <a href=\"https:\/\/www.mingchifrp.com\/ja\/application\/\">industrial and engineering construction applications.<\/a><\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-4533 size-full\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon.webp\" alt=\"FRP fiberglass pultrusion process flowchart diagram showing step-by-step production from reinforcing materials, resin bath, forming die, heating die, pulling machine, cutter to finished composite product\" width=\"2048\" height=\"768\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon.webp 2048w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon-300x113.webp 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon-1024x384.webp 1024w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon-768x288.webp 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon-1536x576.webp 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon-18x7.webp 18w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/05\/Production-line_11zon-700x263.webp 700w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<div><img alt=\"Mingchi FRP factory production line with advanced manufacturing equipment, showing the company&#039;s sincerity-based quality philosophy banner&quot;\" loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-2637\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-300x190.jpg\" width=\"570\" height=\"360\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-300x190.jpg 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-1024x648.jpg 1024w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-768x486.jpg 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-1536x971.jpg 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-2048x1295.jpg 2048w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-700x443.jpg 700w\" sizes=\"(max-width: 570px) 100vw, 570px\" \/> <img alt=\"Mingchi factory advanced FRP production line equipment, used for manufacturing high-quality fiberglass products\" loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-2591\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-300x191.webp\" width=\"570\" height=\"362\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-300x191.webp 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-1024x651.webp 1024w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-768x488.webp 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-1536x976.webp 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-700x445.webp 700w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2.webp 1571w\" sizes=\"(max-width: 570px) 100vw, 570px\" \/><\/div>","protected":false},"excerpt":{"rendered":"<p>40x4mm Fiberglass flat bar adopts premium fiberglass material with superior corrosion resistance, good insulation performance and high structural stability. It is lightweight, wear-resistant and perfectly suitable for industrial construction, platform frames and various engineering application scenarios.<\/p>","protected":false},"featured_media":3743,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"50","_seopress_titles_title":"Fiberglass Flat Bar | High Strength FRP Flat Strip","_seopress_titles_desc":"Lightweight pultruded fiberglass flat bar with great corrosion resistance and structural strength for industrial construction applications.","_seopress_robots_index":"","_seopress_analysis_target_kw":"Fiberglass Flat Bar","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":[50,40],"product_tag":[],"class_list":["post-3741","product","type-product","status-publish","has-post-thumbnail","product_cat-frp-flatbar","product_cat-frp-profiles","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/product\/3741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/comments?post=3741"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/media\/3743"}],"wp:attachment":[{"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/media?parent=3741"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/product_brand?post=3741"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/product_cat?post=3741"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.mingchifrp.com\/ja\/wp-json\/wp\/v2\/product_tag?post=3741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}