{"id":228588,"date":"2025-05-07T10:26:47","date_gmt":"2025-05-07T10:26:47","guid":{"rendered":"https:\/\/peraltafinancing.com\/aerospace\/why-arent-airplanes-made-mostly-of-steel-blog\/"},"modified":"2025-05-07T10:26:47","modified_gmt":"2025-05-07T10:26:47","slug":"why-arent-airplanes-made-mostly-of-steel-blog","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=228588","title":{"rendered":"Why Aren\u2019t Airplanes Made Mostly of Steel? | Blog"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<hr\/>\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-medium\"><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/monroeaerospace.com\/blog\/wp-content\/uploads\/2025\/05\/aircraft-475409_640-300x200.jpg\" alt=\"Airplane engines\" class=\"wp-image-8424\" srcset=\"https:\/\/monroeaerospace.com\/blog\/wp-content\/uploads\/2025\/05\/aircraft-475409_640-300x200.jpg 300w, https:\/\/monroeaerospace.com\/blog\/wp-content\/uploads\/2025\/05\/aircraft-475409_640.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\"\/><\/figure>\n<\/div>\n<p>Given its strength, you may assume that steel is one of the most common materials used in the construction of airplanes. Depending on the type, it can have a tensile strength of over 150,000 pounds per square inch (PSI), making it incredibly strong. Steel, however, only accounts for about 10% to 13% of a typical airplane\u2019s weight. So, why aren\u2019t airplanes made mostly of steel?<\/p>\n<h2 class=\"wp-block-heading\">Weight<\/h2>\n<p>It may be strong, but steel is also heavy. Steel has a density of approximately 7.85 g\/cm\u00b3, whereas aluminum has a density of approximately 2.70 g\/cm\u00b3. As a result, steel weighs about three times as much as aluminum. If airplanes were made mostly of steel, all of this extra weight would have serious repercussions. It would make them consume more fuel, require longer runways for takeoffs and landings, shorten their range, and reduce their payload capacity.<\/p>\n<h2 class=\"wp-block-heading\">Corrosion<\/h2>\n<p>Another reason airplanes aren\u2019t made mostly of steel is because of corrosion. Steel is an iron alloy that can rust and corrode. While some types of steel are protected from this phenomenon, it typically comes at the cost of strength. Stainless steel, for instance, features chromium that protects it from corrosion, but it\u2019s not as strong as high-carbon steel.<\/p>\n<p>Airplanes operate in harsh conditions. They are regularly exposed to heat, cold, humidity, strong winds and even salt when flying over oceans. Steel can corrode in these conditions, but other aerospace materials like composites and aluminum can withstand the harsh conditions of high-altitude flights.<\/p>\n<h2 class=\"wp-block-heading\">Manufacturing<\/h2>\n<p>Because it\u2019s so strong, steel is more difficult to work with than other aerospace materials. It requires more powerful machines and labor that, ultimately, adds to the cost of production. Aluminum is a softer material that\u2019s easier to shape and bend. <\/p>\n<p>In addition to being softer, aluminum costs less per pound than steel. It\u2019s easier to transport \u2014 due primarily to its lightweight properties \u2014 so aluminum usually costs less than steel. As a result, using aluminum in airplanes results in a lower cost of production.<\/p>\n<h2 class=\"wp-block-heading\">Airplanes Still Contain Steel<\/h2>\n<p>It may not be the primary material used in their construction, but airplanes still contain steel. It\u2019s typically used for parts that require high strength and heat resistance. Landing gear components and engine components, for example, are often made of steel. Fuselages, on the other hand, are typically made of lighter materials like aerospace-grade aluminum or composites.<\/p>\n<\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Given its strength, you may assume that steel is one of the most common materials used in the construction of airplanes. Depending on the type, it can have a tensile strength of over 150,000 pounds per square inch (PSI), making it incredibly strong. Steel, however, only accounts for about 10% to 13% of a typical [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":228589,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12024],"tags":[14108,14512,3767,420],"dealstore":[],"offerexpiration":[],"class_list":["post-228588","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aerospace","tag-airplanes","tag-arent","tag-blog","tag-steel"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why Aren\u2019t Airplanes Made Mostly of Steel? | Blog - Som2ny Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fivemor.com\/?p=228588\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Aren\u2019t Airplanes Made Mostly of Steel? | Blog - Som2ny Network\" \/>\n<meta property=\"og:description\" content=\"Given its strength, you may assume that steel is one of the most common materials used in the construction of airplanes. 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