{"id":4902,"date":"2025-11-21T16:26:12","date_gmt":"2025-11-21T07:26:12","guid":{"rendered":"https:\/\/agus.co.jp\/en\/?p=4902"},"modified":"2025-11-21T16:26:13","modified_gmt":"2025-11-21T07:26:13","slug":"elements-iron-lets-learn-more-about-iron-fe-atomic-number-26-basic-knowledge-of-chemistry-useful-in-society","status":"publish","type":"post","link":"https:\/\/agus.co.jp\/en\/?p=4902","title":{"rendered":"Elements [Iron] Let&#8217;s learn more about Iron\/Fe, atomic number 26! Basic knowledge of chemistry useful in society."},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-22-1024x683.jpg\" alt=\"\" class=\"wp-image-4905\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-22-1024x683.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-22-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-22-768x512.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-22-1536x1024.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-22.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Iron is the most familiar element.<\/p>\n\n\n\n<p>However, did you know that iron is inherently soft?<\/p>\n\n\n\n<p>There are many aspects of iron that are surprisingly unknown<\/p>\n\n\n\n<p>In this article, we will explain the properties of iron and how it is used in society.<\/p>\n\n\n\n<p>Please see also some tidbits on how to use Iron in society.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Properties and characteristics of Iron<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-23-1024x682.jpg\" alt=\"\" class=\"wp-image-4906\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-23-1024x682.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-23-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-23-768x512.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-23-1536x1023.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-23.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Iron is the soft metal that gradually oxidizes in air and soft on its own.<\/p>\n\n\n\n<p>Iron has the image of being hard, but actually it&#8217;s hard only because it&#8217;s a compound with carbon.<\/p>\n\n\n\n<p>Iron is the most commonly used metal product, with about 95% of it being made of steel.<\/p>\n\n\n\n<p>When iron is produced as a single element, it comes from \u2018meteorites\u2019.<\/p>\n\n\n\n<p>Humans are said to have started using it more than 4000 years ago, dating back to BC.<\/p>\n\n\n\n<p>It is one of those mysterious elements that no one knows who found, but continues to use.<\/p>\n\n\n\n<p>Let&#8217;s look at how they are used in society, one by one.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How Iron is used in society.<\/h2>\n\n\n\n<p>Iron is used as a component of &#8216;railway tracks&#8217;, body of ships and &#8216;Japanese building objects&#8217;.<\/p>\n\n\n\n<p>Let\u2019s look at each of them.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Iron is useful \u201crailway line\u201d<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-24-1024x682.jpg\" alt=\"\" class=\"wp-image-4907\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-24-1024x682.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-24-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-24-768x512.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-24-1536x1023.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-24.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>In ordinary rails, iron is mixed with small amounts of carbon, manganese and silicon.<\/p>\n\n\n\n<p>In fact, there are different types of rails, which are created for different applications, such as for high-speed and heavy-duty railways.<\/p>\n\n\n\n<p>By the way, when you&#8217;re riding the train, you hear that \u201cclackety-clack\u201d sound. That&#8217;s the sound made when the train passes over the joints between the rails.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Iron is useful \u201cBody of the ship\u201d<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-25-1024x683.jpg\" alt=\"\" class=\"wp-image-4908\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-25-1024x683.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-25-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-25-768x512.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-25-1536x1024.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-25.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Steel is also used in the bodies of modern ships.<\/p>\n\n\n\n<p>Originally, wooden boats were common, as they were easier to float, but these were changed to steel as they were often deformed or damaged when subjected to strong forces from ocean waves and currents.<\/p>\n\n\n\n<p>If you put heavy steel on a boat, won&#8217;t it sink? You might think.<\/p>\n\n\n\n<p>The following article is recommended for those who are interested.<\/p>\n\n\n<div class=\"related_link\"><span class=\"title\"><i class=\"fa-solid fa-bookmark\"><\/i>Read in conjunction with<\/span><ul><li><a href=\"https:\/\/agus.co.jp\/en\/?p=4002\"><span class=\"thumbnail\"><img decoding=\"async\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2024\/06\/0.jpeg\"><\/span><span class=\"post_title\">Why do ships float? We explain the reasons for this in simple terms!<\/span><\/a><\/li><\/ul><\/div>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Iron is useful \u201cBuildings in Japan\u201d<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-26-1024x682.jpg\" alt=\"\" class=\"wp-image-4909\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-26-1024x682.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-26-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-26-768x512.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-26-1536x1023.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-26.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Structures of Japanese buildings are broadly categorized into wooden, reinforced concrete, and steel.<\/p>\n\n\n\n<p>Steel is used in reinforced concrete and steel frame structure.<\/p>\n\n\n\n<p>Here is some trivial info.<\/p>\n\n\n\n<p>Steel-framed buildings utilize iron columns and beams instead of wood in their construction.<\/p>\n\n\n\n<p>Reinforced concrete (RC) buildings are reinforced by embedding long, thin steel rods into the concrete.<\/p>\n\n\n\n<p>There is also a steel-framed reinforced concrete (SEC) construction method, where the steel frame is embedded in this RC construction.<\/p>\n\n\n\n<p>Reinforced concrete is generally more popular as it is sturdier and has better soundproofing.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">History of iron<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-27-1024x681.jpg\" alt=\"\" class=\"wp-image-4910\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-27-1024x681.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-27-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-27-768x511.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-27-1536x1021.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/11\/unnamed-27.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u30fbChemical symbol; Fe<\/p>\n\n\n\n<p>The etymology of the word iron is unknown.<\/p>\n\n\n\n<p>As for the elemental symbol Fe, it is said to derive from the Latin word &#8216;ferrum&#8217;.<\/p>\n\n\n\n<p>The details of the discovery are unknown, as it is said to date from BC.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<p>In this article, we have explained &#8216; iron &#8216;.<\/p>\n\n\n\n<p>The key points of this article are as follows.<\/p>\n\n\n\n<div class=\"kakomi\">\n<ul><li>Iron is easily oxidised and is a soft metal on its own<\/li><li>Used for &#8216;railway lines&#8217;, body of a ship, &#8216;Japanese building objects&#8217;, etc.\n<\/li><li>Said to have been used since BC, etymology and discoverer unknown<\/li><\/ul>\n<\/div>\n\n\n\n<p>The other elements studied in high school are summarized in the following articles.<\/p>\n\n\n\n<p>Please see also the following pages for a further understanding!<\/p>\n\n\n<div class=\"related_link\"><span class=\"title\"><i class=\"fa-solid fa-bookmark\"><\/i>Read in conjunction with<\/span><ul><li><a href=\"https:\/\/agus.co.jp\/en\/?p=4582\"><span class=\"thumbnail\"><img decoding=\"async\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2025\/03\/0-1.jpeg\"><\/span><span class=\"post_title\">Elements: a list of elements, from the basic to the most recent, explained in a simple way with familiar examples!<\/span><\/a><\/li><\/ul><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Iron is the most familiar element. However, did you know that iron is inher[\u3082\u3063\u3068\u8aad\u307e\u305b\u3066\u301c]<\/p>\n","protected":false},"author":1,"featured_media":4905,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[44],"tags":[],"class_list":["post-4902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-topics"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Elements [Iron] Let&#039;s learn more about Iron\/Fe, atomic number 26! Basic knowledge of chemistry useful in society. | SUGA Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Iron is the most familiar element. 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