{"id":15610,"date":"2022-07-20T14:14:55","date_gmt":"2022-07-20T14:14:55","guid":{"rendered":"https:\/\/www.smetals.co.uk\/?post_type=product&#038;p=15610"},"modified":"2026-07-07T12:27:28","modified_gmt":"2026-07-07T12:27:28","slug":"25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube","status":"publish","type":"product","link":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/","title":{"rendered":"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube"},"content":{"rendered":"<h2>25mm x 3mm Square Steel Box<\/h2>\n<p>The Speciality Metals Company is one of the leading suppliers of mild steel box section in the United Kingdom. Additionally, in addition to stocking only the best products, we provide the most helpful customer service by providing bespoke cutting and fast shipping.<\/p>\n<p>Box sections, also known as mild steel hollow sections or ERW tubes, are widely used in a variety of applications. The durability of this material permits it to be used for a wide range of applications, including traffic signs, pipeline construction, automobile repair and as a structural steel.<\/p>\n<p>Steel box sections are a favored choice in construction, engineering and manufacturing due to their durability, versatility and exceptional welding, forming, bending and machining abilities. The 25mm x 25mm x 3mm mild steel box section from Speciality Metals offers cost-effective and recyclable specifications of various lengths. Their square shape enhances their stability and structural strength, making them suitable for heavy load-bearing applications. With excellent resistance to corrosion, and superb thermal conductivity, these steel box sections can withstand a wide range of weather conditions, withstanding the test of time. With remarkable strength-to-weight ratios, these steel box sections provide a perfect material for use in various structural and mechanical applications.<\/p>\n<h2>Mild Steel<\/h2>\n<p>Mild steel square tube box section is a quality strong metal product. However it is not rust proof and may do so over time. Please use galvanised or stainless steel if you need resistance to rust. If this metal tube does show signs off rust then simply get this off with WD40 or fine sanding.<\/p>\n<ul>\n<li><strong>Bending &amp; Forming \u2013 Fair. You could only bend this tubing with bending tools but not by hand<\/strong><\/li>\n<li><strong>Corrosion Resistance \u2013 Poor. Mild steel is uncoated, so there is no additional protection against corrosion<\/strong><\/li>\n<li><strong>Machining &amp; Grinding \u2013 Good. Mild steel is the metal choice for many forms of machining and grinding, but stainless steel can also offer good results<\/strong><\/li>\n<li><strong>Welding \u2013 Excellent. You could easily weld with this tubing to suit your requirements<\/strong><\/li>\n<li><strong>Painting \u2013 Good. We suggest that a mild steel product is always used when a layer of paint needs to be applied. Galvanised and stainless steel will not take paint<\/strong><\/li>\n<li><strong>Wear Resistance \u2013 Fair. As there is no protective layer, we suggest stainless steel or galvanised steel if you require a stronger wear resistance<\/strong><\/li>\n<\/ul>\n<p>The grade of plain steel that we have available has mechanical properties that provide excellent machinability, formability and weldability. Mild steel can be welded and it is also suitable for painting. Mild steel is a magnetic grade of metal. Magnets will stick to this sheet but it is not itself a magnet.<\/p>\n<p>Key information:<\/p>\n<ul>\n<li><strong>Shape \u2013 Square Box Section<\/strong><\/li>\n<li><strong>Grade \u2013 S235JRH<\/strong><\/li>\n<li><strong>Hot or Cold Rolled \u2013 Cold Rolled<\/strong><\/li>\n<li><strong> Box Outer Size &#8211; 25 x 25<\/strong><strong>mm<\/strong><\/li>\n<li><strong>Wall Thickness \u2013 3mm<\/strong><\/li>\n<\/ul>\n<p>We also carry a wide range of mild steel\u00a0<a href=\"https:\/\/www.smetals.co.uk\/product-category\/sheet-metal\/mild-steel-plate-cut-to-size\/\" target=\"_blank\" rel=\"noopener noreferrer\">sheet metal<\/a>,\u00a0<a href=\"https:\/\/www.smetals.co.uk\/product\/mild-steel-angle-iron-steel-section-20-60mm-width-3-6mm-thick\/\" target=\"_blank\" rel=\"noopener noreferrer\">angle iron\u00a0<\/a>and\u00a0<a href=\"https:\/\/www.smetals.co.uk\/product\/mild-steel-flat-bar-steel-strip\/\" target=\"_blank\" rel=\"noopener noreferrer\">flat bar.<\/a><\/p>\n<h4>Why Choose Speciality Metals<\/h4>\n<p>Speciality Metals is known to be the United Kingdom\u2019s best up-and-coming small-quantity metal company.<\/p>\n<ul>\n<li><strong>FREE UK delivery on all orders<\/strong><\/li>\n<li><strong>Order dispatch within 24 hours of order<\/strong><\/li>\n<li><strong>Located in Warrington, UK which is the UK home of mesh and metals<\/strong><\/li>\n<li><strong>Our experienced staff are experts in the mesh market and care personally about your customer experience<\/strong><\/li>\n<\/ul>\n<p>Furthermore we stock a vast range of <a href=\"https:\/\/www.smetals.co.uk\/product-category\/tube\/\"><strong>round tube<\/strong><\/a> options that compliment our mesh range perfectly.<\/p>\n<p>Over 50,000 customers of Specialty Metals are provided with fast, friendly customer service every year. We\u2019re the place to try when you need metal of any shape and size. We\u2019re based in Warrington, UK. We pride ourselves on our rapid turnaround and a large range of options.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h4>FAQs About This Product<\/h4>\n<div class=\"group w-full text-gray-800 dark:text-gray-100 border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\">\n<div class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-4 whitespace-pre-wrap break-words\">\n<h2>Is Mild Square Steel Tubing Easy to Paint?<\/h2>\n<p>Mild square steel tubing is relatively easy to paint, but proper preparation is key to ensuring the paint adheres well and lasts a long time. The primary concern with painting mild steel is its susceptibility to rust and oxidation. Before painting, it&#8217;s essential to clean the surface thoroughly to remove any rust, dirt, grease or oil. Here are the steps to achieve the best results:<\/p>\n<ol>\n<li>\n<p><strong>Cleaning:<\/strong> Start by cleaning the tubing using a degreasing agent or soapy water to remove any contaminants.<\/p>\n<\/li>\n<li>\n<p><strong>Rust Removal:<\/strong> If there&#8217;s any rust present, it should be removed using a wire brush, sandpaper or a rust removal solution.<\/p>\n<\/li>\n<li>\n<p><strong>Priming:<\/strong> Once the steel is clean and free of rust, a primer designed for metal surfaces should be applied. This step is crucial, as the primer provides a base for the paint to adhere to and offers an added layer of protection against corrosion.<\/p>\n<\/li>\n<li>\n<p><strong>Painting:<\/strong> After the primer has dried, you can apply the desired paint. It&#8217;s typically best to use paints formulated for metal surfaces, as they adhere better and offer enhanced protection. Multiple thin coats are better than one thick coat, ensuring each layer dries adequately before applying the next.<\/p>\n<\/li>\n<li>\n<p><strong>Sealing:<\/strong> While not always necessary, in particularly harsh environments, a clear sealant can be applied over the paint for extra protection.<\/p>\n<\/li>\n<\/ol>\n<p>By following these steps, mild square steel tubing can be effectively painted, offering not only an aesthetic upgrade but also an additional barrier against environmental elements.<\/p>\n<h2>Can I use Mild Square Steel Tubing for Plumbing?<\/h2>\n<p>Mild square steel tubing is not typically recommended for plumbing applications. The primary reason is its vulnerability to corrosion, especially when exposed to water for extended periods. Over time, the interior of the tubing can rust, which can contaminate the water and also compromise the integrity of the tubing, leading to potential leaks or failures.<\/p>\n<p>Most plumbing systems require materials that can withstand prolonged contact with water without corroding. Historically, galvanised steel was used in plumbing, where the steel was coated with zinc to offer some protection against corrosion. However, over time, even galvanised pipes can corrode, leading to potential health concerns and system failures.<\/p>\n<p>Modern plumbing typically utilizes materials such as copper, PEX (cross-linked polyethylene), PVC (polyvinyl chloride) or CPVC (chlorinated polyvinyl chloride) due to their resistance to corrosion, longevity and suitability for carrying potable water.<\/p>\n<p>If you&#8217;re contemplating using mild square steel tubing in a setting where it will encounter water, like for decorative water features or certain outdoor applications, make sure to take protective measures, such as galvanising, painting, or sealing to delay corrosion. However, for traditional plumbing, especially for potable water, it&#8217;s advisable to use materials specifically designed for that purpose.<\/p>\n<h2>How do Temperature Changes Affect Mild Square Steel Tubing?<\/h2>\n<p>Temperature fluctuations bring about several changes to mild square steel tubing. As with most materials, steel expands with rising temperatures and contracts upon cooling. This natural thermal expansion and contraction can cause stresses, especially if the tubing is fixed in place. Moreover, while mild steel maintains its strength across moderate temperature variances, it can become brittle in extremely cold settings and softer under high heat. The speed of corrosion reactions can also be temperature-dependent, with warmer conditions generally accelerating corrosion, especially in the presence of moisture. Additionally, if the tubing undergoes repeated cycles of heating and cooling, this can lead to material fatigue, with micro-cracks potentially forming over time. Welded joints on the tubing deserve special attention, as their mechanical properties might differ from the rest of the tube, making them more sensitive to temperature changes. Lastly, in environments experiencing shifts from hot to cold, condensation can form on the tubing&#8217;s surface, presenting another potential avenue for corrosion. When using mild square steel tubing in varying temperatures, it&#8217;s imperative to factor in these potential effects and employ protective measures to ensure longevity.<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><em><strong>Check out our blog discussing <a href=\"https:\/\/www.smetals.co.uk\/mild-steel\/what-is-steel-box-section\/\">what is a steel box section<\/a>. It will prove a useful read to help you to make an informed decision on which material would work best for you.\u00a0<\/strong><\/em><\/p>\n<p><em><strong>We are also very proud of our ever expanding <a href=\"https:\/\/www.youtube.com\/@SpecialityMetals\">YouTube<\/a> channel.\u00a0<\/strong><\/em><\/p>\n<p><em><strong>Our goal for our blogs and help guides is to answer as many questions as possible to help to explain the possibilities of mesh to our customers.\u00a0 <a href=\"https:\/\/www.smetals.co.uk\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">Contact us<\/a>\u00a0today if you have any questions at all. We are always really keen to help in any way that we can.<\/strong><\/em><\/p>\n<p><em><strong>We are also very proud of our highly popular\u00a0<a href=\"https:\/\/www.ebay.co.uk\/itm\/303565335602?hash=item46ade76c32:g:52wAAOSwn35hVB0a&amp;amdata=enc%3AAQAHAAAA4FIP%2Fs70tTymwnOpAeuHgnIW%2FBAqQpqeR6HroKjmP36%2F%2FmVroq%2BkLuGAaqDDsbaUfezU7AgwWXqeZQmNQ9vUrKB0HvNfHGAMnrWAV3zaYwfaFXdb1ZPy%2BLRANrk4r34iTPERZMCKc4gz2jaHnnKfbWTRLl8wCNCXv1nnvzGyQjL%2BLPk7pduZ2rCUZMa%2B9dwXbeWE8%2FtoTTxof0z3NBEHraiWUdiMaSNaodMXjF7JoSwCP86rmynJf3BJud112BCDM1VXm9EmoScImhggISQRN41JtQY58AhlfjQsHHCoaCVv%7Ctkp%3ABFBMrKS3v79g\">eBay store<\/a>, check us out there too.<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p><em><strong>\u00a3 MULTIBUY SAVINGS &#8211; Order 3 For 10% Off<\/strong><\/em><\/p>\n<p><em><strong>\u2714 Specialists In Rapid Shipments Of Any Size<\/strong><\/em><\/p>\n<p><em><strong>\u2714 FREE UK Delivery Included<\/strong><\/em><\/p>\n<p><em><strong>\u2714 Immediate Express Dispatch From Stock<\/strong><\/em><\/p>\n<p><em><strong>\u2714 Tracked Delivery with Order Updates<\/strong><\/em><\/p>\n<p><em><strong>\u2714 30-Day Returns Accepted<\/strong><\/em><\/p>\n<p><strong>@ \u260f \u00a0<a href=\"https:\/\/themeshcompany.com\/contact-us\/\"><em>Bespoke Cuts &amp; Longer Lengths Available<\/em><\/a>\u00a0<\/strong><\/p>\n<p>If you&#8217;re looking for a cost-effective and durable steel box, look no further than Speciality Metals&#8217; 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. With various lengths available, this steel box is versatile and perfect for a range of applications. What&#8217;s more, it&#8217;s recyclable, so you can rest easy knowing you&#8217;re doing your part for the environment. This steel box also boasts excellent welding, forming, bending and machining abilities.<\/p>\n<p>So if you need a reliable and sturdy steel box, choose Speciality Metals&#8217; Mild Steel Box Section Steel Square Tube.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-20868 size-full\" src=\"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2022\/09\/Mild-Steel-Sheet.jpg\" alt=\"\" width=\"1280\" height=\"224\" srcset=\"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2022\/09\/Mild-Steel-Sheet.jpg 1280w, https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2022\/09\/Mild-Steel-Sheet-300x53.jpg 300w, https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2022\/09\/Mild-Steel-Sheet-1024x179.jpg 1024w, https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2022\/09\/Mild-Steel-Sheet-768x134.jpg 768w, https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2022\/09\/Mild-Steel-Sheet-600x105.jpg 600w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/p>\n","protected":false},"featured_media":18834,"comment_status":"open","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false},"product_brand":[],"product_cat":[36,20],"product_tag":[52,37,23,51],"class_list":["post-15610","product","type-product","status-publish","has-post-thumbnail","product_cat-mild-steel-square-tube","product_cat-tube","product_tag-3mm-thick","product_tag-box-section","product_tag-mild-steel","product_tag-square-tube","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube - Speciality Metals<\/title>\n<meta name=\"description\" content=\"Find the 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. Versatile and durable for multiple applications. Shop now for high-quality steel.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube - Speciality Metals\" \/>\n<meta property=\"og:description\" content=\"Find the 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. Versatile and durable for multiple applications. Shop now for high-quality steel.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/\" \/>\n<meta property=\"og:site_name\" content=\"Speciality Metals\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-07T12:27:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/\",\"url\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/\",\"name\":\"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube - Speciality Metals\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.smetals.co.uk\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg\",\"datePublished\":\"2022-07-20T14:14:55+00:00\",\"dateModified\":\"2026-07-07T12:27:28+00:00\",\"description\":\"Find the 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. Versatile and durable for multiple applications. Shop now for high-quality steel.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.smetals.co.uk\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg\",\"contentUrl\":\"https:\\\/\\\/www.smetals.co.uk\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg\",\"width\":1000,\"height\":1000,\"caption\":\"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/product\\\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.smetals.co.uk\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/www.smetals.co.uk\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/#website\",\"url\":\"https:\\\/\\\/www.smetals.co.uk\\\/\",\"name\":\"Speciality Metals\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.smetals.co.uk\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/#organization\",\"name\":\"Speciality Metals\",\"url\":\"https:\\\/\\\/www.smetals.co.uk\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.smetals.co.uk\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/footer-logo_01.png\",\"contentUrl\":\"https:\\\/\\\/www.smetals.co.uk\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/footer-logo_01.png\",\"width\":111,\"height\":111,\"caption\":\"Speciality Metals\"},\"image\":{\"@id\":\"https:\\\/\\\/www.smetals.co.uk\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube - Speciality Metals","description":"Find the 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. Versatile and durable for multiple applications. Shop now for high-quality steel.","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:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/","og_locale":"en_US","og_type":"article","og_title":"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube - Speciality Metals","og_description":"Find the 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. Versatile and durable for multiple applications. Shop now for high-quality steel.","og_url":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/","og_site_name":"Speciality Metals","article_modified_time":"2026-07-07T12:27:28+00:00","og_image":[{"width":1000,"height":1000,"url":"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/","url":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/","name":"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube - Speciality Metals","isPartOf":{"@id":"https:\/\/www.smetals.co.uk\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/#primaryimage"},"image":{"@id":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/#primaryimage"},"thumbnailUrl":"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg","datePublished":"2022-07-20T14:14:55+00:00","dateModified":"2026-07-07T12:27:28+00:00","description":"Find the 25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube. Versatile and durable for multiple applications. Shop now for high-quality steel.","breadcrumb":{"@id":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/#primaryimage","url":"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg","contentUrl":"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/Mild-Steel-Box-Section-25-x-25mm-2.5mm-Thick-Image-1.jpg","width":1000,"height":1000,"caption":"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube"},{"@type":"BreadcrumbList","@id":"https:\/\/www.smetals.co.uk\/product\/25mm-x-25mm-x-3mm-mild-steel-box-section-steel-square-tube\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.smetals.co.uk\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/www.smetals.co.uk\/shop\/"},{"@type":"ListItem","position":3,"name":"25mm x 25mm x 3mm Mild Steel Box Section Steel Square Tube"}]},{"@type":"WebSite","@id":"https:\/\/www.smetals.co.uk\/#website","url":"https:\/\/www.smetals.co.uk\/","name":"Speciality Metals","description":"","publisher":{"@id":"https:\/\/www.smetals.co.uk\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.smetals.co.uk\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.smetals.co.uk\/#organization","name":"Speciality Metals","url":"https:\/\/www.smetals.co.uk\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.smetals.co.uk\/#\/schema\/logo\/image\/","url":"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/footer-logo_01.png","contentUrl":"https:\/\/www.smetals.co.uk\/wp-content\/uploads\/2023\/04\/footer-logo_01.png","width":111,"height":111,"caption":"Speciality Metals"},"image":{"@id":"https:\/\/www.smetals.co.uk\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/product\/15610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/comments?post=15610"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/media\/18834"}],"wp:attachment":[{"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/media?parent=15610"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/product_brand?post=15610"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/product_cat?post=15610"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.smetals.co.uk\/wp-json\/wp\/v2\/product_tag?post=15610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}