{"id":5512,"date":"2026-09-07T12:46:35","date_gmt":"2026-09-07T12:46:35","guid":{"rendered":"https:\/\/ultrasuonindt.it\/applications\/mechanical-engineering-and-steelwork\/checking-castings-and-forgings\/"},"modified":"2026-09-15T19:49:25","modified_gmt":"2026-09-15T19:49:25","slug":"checking-castings-and-forgings","status":"publish","type":"page","link":"https:\/\/ultrasuonindt.it\/en\/applications\/mechanical-engineering-and-steelwork\/checking-castings-and-forgings\/","title":{"rendered":"Checking castings and forgings"},"content":{"rendered":"\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:36%\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"680\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?resize=680%2C680&#038;ssl=1\" alt=\"Thickness measurement on an as-cast mechanical part\" class=\"wp-image-1045 has-border-color\" style=\"border-color:#000000;border-width:1px;border-radius:15px\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?w=680&amp;ssl=1 680w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?resize=150%2C150&amp;ssl=1 150w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:4%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<div class=\"wp-block-group has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-right-radius:6px;border-bottom-right-radius:6px;border-left-color:#225f78;border-left-width:6px;background-color:#ebf1f4;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\">\n<p class=\"wp-block-paragraph\" style=\"color:#225f78;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.408), 18px);font-style:italic;font-weight:400;line-height:1.6\">On an as-cast blank the question is whether there is <strong>enough machining allowance<\/strong> to reach the final dimension. Finding out there is not, once machining has started, means machine hours already spent on a part that has to be scrapped. <\/p>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\" style=\"list-style:none;padding-left:0px;line-height:1.6\"><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Check of the <strong>machining allowance<\/strong> before the part goes on the machine<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>High penetration<\/strong> for cast iron and strongly attenuating materials<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>Velocity Mode<\/strong> as an indirect nodularity test<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>High gain<\/strong> on rough foundry surfaces<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>A-Scan<\/strong> to tell the backwall echo from a porosity<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> No cutting: the part stays <strong>machinable<\/strong><\/li><\/ul>\n<\/div>\n<\/div>\n\n<div style=\"height:28px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">A casting comes with shapes that follow the pattern, not the finished drawing: the as-cast wall has to contain the design dimension plus the allowance to be removed. If the casting has suffered a core shift or an unforeseen shrinkage, that margin can be missing at one specific point, and the part turns out to be unusable only when the tool reaches that area. <\/p>\n\n<p class=\"wp-block-paragraph\">Measuring the thickness of the blank before machining closes this risk. The problem is that cast iron and many foundry alloys are <strong>difficult materials for ultrasound<\/strong>: they attenuate more than rolled steel, they have a coarse grain that scatters the beam and rough surfaces that worsen the coupling. High transmission energy, adjustable gain and an A-Scan are needed to understand what one is looking at.  <\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-cover is-light popmake-4066 popmake-739\" style=\"border-width:1px;min-height:250px;aspect-ratio:unset;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"250\" class=\"wp-block-cover__image-background wp-image-727 size-full\" alt=\"\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=1200%2C250&#038;ssl=1\" data-object-fit=\"cover\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=300%2C63&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=1024%2C213&amp;ssl=1 1024w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=768%2C160&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-30 has-background-dim\" style=\"background-color:#d3d6dc\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-15701bb7 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right has-ti-fg-color is-style-default has-luminous-vivid-amber-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"font-size:clamp(21.536px, 1.346rem + ((1vw - 3.2px) * 1.374), 35px);\"><strong>Need help choosing the right product?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-b507c051 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button popmake-4066 popmake-739\"><a class=\"wp-block-button__link has-ti-accent-color has-cyan-bluish-gray-background-color has-text-color has-background has-link-color wp-element-button\">Contact us<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">There is then a particular use of the method that concerns <strong>ductile iron<\/strong>: the speed of sound in cast iron changes with the degree of nodularity of the graphite. By measuring the velocity on a part of known thickness one obtains an indirect indicator of nodularity, used in the foundry as a quick process check. <\/p>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Why cast iron is a difficult material<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Factor<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Effect on the measurement<\/th><\/tr><\/thead><tbody><tr><td><strong>Coarse grain<\/strong><\/td><td>Scatters the beam and generates background noise<\/td><\/tr><tr><td><strong>High attenuation<\/strong><\/td><td>The backwall echo comes back weak: more energy is needed<\/td><\/tr><tr><td><strong>Variable velocity<\/strong><\/td><td>It changes with the degree of nodularity: table values unreliable<\/td><\/tr><tr><td><strong>Rough surface<\/strong><\/td><td>Difficult coupling: more couplant and gain needed<\/td><\/tr><tr><td><strong>Porosity and cavities<\/strong><\/td><td>They can generate intermediate echoes that can be mistaken for the backwall<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Velocity Mode as a nodularity test<\/h2>\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:36%\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"680\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-applicazione_con_PMX2-DL-Action-Shot_misura_su_materiale_reale-web-680x680-1.webp?resize=680%2C680&#038;ssl=1\" alt=\"Thickness measurement on real material with a Dakota gauge\" class=\"wp-image-957 has-border-color\" style=\"border-color:#000000;border-width:1px;border-radius:15px\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-applicazione_con_PMX2-DL-Action-Shot_misura_su_materiale_reale-web-680x680-1.webp?w=680&amp;ssl=1 680w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-applicazione_con_PMX2-DL-Action-Shot_misura_su_materiale_reale-web-680x680-1.webp?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-applicazione_con_PMX2-DL-Action-Shot_misura_su_materiale_reale-web-680x680-1.webp?resize=150%2C150&amp;ssl=1 150w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:4%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"wp-block-paragraph\">In cast iron the graphite can appear in lamellar or spheroidal form, and the form changes the elastic properties of the material.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>The <strong>speed of sound<\/strong> rises with the degree of nodularity<\/li><li><strong>Velocity Mode<\/strong> derives it by measuring a part of known thickness<\/li><li>The value obtained is compared with that of <strong>reference samples<\/strong><\/li><li>It is a <strong>quick and non-destructive<\/strong> check, useful at the line<\/li><li>It remains an <strong>indirect indicator<\/strong>: it does not replace metallographic examination<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">It is to be used as a process indicator, not as certification of the structure of the material.<\/p>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Recommended instruments<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Instrument<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Why in this application<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/thickness-gauges\/dakota-pmx4-dl-high-penetration-gauge\/\"><strong>Dakota PMX4-DL<\/strong><\/a><\/td><td>High penetration: cast iron, castings and strongly attenuating alloys<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/thickness-gauges\/dakota-zx6-dl-multi-echo-thickness-gauge-with-data-logger\/\"><strong>Dakota ZX6-DL<\/strong><\/a><\/td><td>Velocity Mode for the nodularity test, with data logger<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/thickness-gauges\/dakota-cmx2-dl-corrosion-gauge-with-a-scan\/\"><strong>Dakota CMX2-DL<\/strong><\/a><\/td><td>110 dB gain range and A-Scan: rough foundry surfaces<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/flaw-detectors\/dakota-fx81-dl-benchtop-flaw-detector\/\"><strong>Dakota FX81-DL<\/strong><\/a><\/td><td>Search for internal cavities and porosity, in the laboratory<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Frequently asked questions<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1757848001000\"><strong class=\"schema-faq-question\">Can the thickness of cast iron be measured?<\/strong><p class=\"schema-faq-answer\">Yes, with due care. Cast iron attenuates ultrasound more than steel and has a coarse grain that scatters the beam, so a high-penetration instrument with high gain is needed. The speed of sound also varies with the degree of nodularity and has to be derived on the material, not taken from a table.  <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757848002000\"><strong class=\"schema-faq-question\">Does Velocity Mode certify nodularity?<\/strong><p class=\"schema-faq-answer\">No, it is an indirect indicator. The speed of sound in cast iron rises with the degree of nodularity, so comparing the measured value with that of reference samples gives a quick, non-destructive process check. The formal characterisation of the structure remains the task of metallographic examination.  <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757848003000\"><strong class=\"schema-faq-question\">Does the instrument see internal porosity?<\/strong><p class=\"schema-faq-answer\">A thickness gauge can give anomalous readings where there are cavities, because porosity generates intermediate echoes before the backwall: with the A-Scan the operator notices them. But this is not a flaw-detection check: for the systematic search for cavities a flaw detector with a dedicated procedure is needed. <\/p><\/div><\/div>\n\n<p class=\"wp-block-paragraph\">Back to <a href=\"https:\/\/ultrasuonindt.it\/en\/applications\/mechanical-engineering-and-steelwork\/\">Mechanical Engineering and Steelwork<\/a>. For a check on castings or cast iron, <a href=\"https:\/\/ultrasuonindt.it\/en\/contact\/\">write to us<\/a> giving the material, typical thicknesses and the condition of the as-cast surface. <\/p>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">Further information and contacts <\/h5>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><a href=\"http:\/\/www.roder.it\">Systems division and sensor integration partner : www.roder.it<\/a><br\/><a href=\"https:\/\/ultrasuonindt.it\/chi-siamo\/\">More information about RODER SRL : about us<\/a><br\/>Contact for general information : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/>Contact for information about these products : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><br\/>The information contained on this web page is provided for information purposes only. Although it has been compiled with the utmost care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.    <\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Some images on this website have been intentionally generated using Artificial Intelligence (AI). This is because, for many applications and projects, it is not possible to disclose photographs of the installation or of the actual system due to confidentiality agreements, confidentiality clauses and non-disclosure agreements (NDAs). <\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>On an as-cast blank the question is whether there is enough machining allowance to reach the final dimension. Finding out there is not, once machining has started, means machine hours already spent on a part that has to be scrapped. \u2713 Check of the machining allowance before the part goes on the machine \u2713 High [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":3203,"parent":3202,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"checking castings and forgings","_yoast_wpseo_title":"Checking castings and forgings: machining allowance and cast iron","_yoast_wpseo_metadesc":"Checking the machining allowance on castings and forgings, measurement on cast iron and indirect nodularity test with Velocity Mode: high-penetration Dakota NDT instruments.","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"footnotes":""},"class_list":["post-5512","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Checking castings and forgings: machining allowance and cast iron<\/title>\n<meta name=\"description\" content=\"Checking the machining allowance on castings and forgings, measurement on cast iron and indirect nodularity test with Velocity Mode: high-penetration Dakota NDT instruments.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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Coating Only mode isolates the applied layer and returns its thickness. \u2713 Measurement of the protective layer alone, separate from the substrate \u2713 Checks that the applied system matches the one specified \u2713 Checking the uniformity\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT CMX3-DL ultrasonic corrosion measurement application on tanks and vessels","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CMX3-DL_applicazione_misura_di_corrosione_su_serbatoi_e_cisterne-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CMX3-DL_applicazione_misura_di_corrosione_su_serbatoi_e_cisterne-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CMX3-DL_applicazione_misura_di_corrosione_su_serbatoi_e_cisterne-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CMX3-DL_applicazione_misura_di_corrosione_su_serbatoi_e_cisterne-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CMX3-DL_applicazione_misura_di_corrosione_su_serbatoi_e_cisterne-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":5468,"url":"https:\/\/ultrasuonindt.it\/en\/applications\/energy-and-renewables\/bolt-tension-in-wind-turbines\/","url_meta":{"origin":5512,"position":3},"title":"Bolt tension in wind turbines","author":"GSM","date":"7 September 2026","format":false,"excerpt":"The connections of a wind tower work under permanent cyclic load. Torque tightening leaves an uncertainty that time amplifies; measuring the elongation says how hard each bolt is really pulling. \u2713 Measurement of the actual load, not of the torque applied\u2713 Check of uniformity across the whole flange ring\u2713 Periodic\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT BT Bolt Tension Monitor ultrasonic bolt elongation measurement application","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_bt_bolt_tension_monitor_per-applicazioni_di_misura_elongazione_bulloni-web-700x700-1.webp?fit=700%2C700&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_bt_bolt_tension_monitor_per-applicazioni_di_misura_elongazione_bulloni-web-700x700-1.webp?fit=700%2C700&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_bt_bolt_tension_monitor_per-applicazioni_di_misura_elongazione_bulloni-web-700x700-1.webp?fit=700%2C700&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_bt_bolt_tension_monitor_per-applicazioni_di_misura_elongazione_bulloni-web-700x700-1.webp?fit=700%2C700&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":3396,"url":"https:\/\/ultrasuonindt.it\/en\/ndt-technologies-and-standards\/materials-and-difficult-cases\/cast-irons-and-highly-attenuating-alloys\/","url_meta":{"origin":5512,"position":4},"title":"Cast irons and highly attenuating alloys","author":"GSM","date":"7 September 2026","format":false,"excerpt":"In cast iron the beam is not stopped by an obstacle: it is scattered by the structure of the material itself. The signal that returns is weak, and must be made readable with suitable frequency and energy. \u2713 Low frequency to cross coarse-grained structures \u2713 High-penetration instruments for the most\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT PMX3-DL real ultrasonic measurement application on a mechanical part","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?fit=680%2C680&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?fit=680%2C680&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico-web-680x680-1.webp?fit=680%2C680&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":3763,"url":"https:\/\/ultrasuonindt.it\/en\/products\/thickness-gauges\/dakota-cx4-thickness-gauge-with-thrupaint\/","url_meta":{"origin":5512,"position":5},"title":"Dakota CX4 \u2013 Thickness Gauge with ThruPaint\u2122","author":"GSM","date":"8 June 2026","format":false,"excerpt":"The Dakota CX4 is the mid-range ultrasonic thickness gauge of the Dakota NDT line, with Pulse-Echo mode, Echo-Echo ThruPaint\u2122 to ignore coatings up to 2 mm and Velocity Mode. HD dual element probe supplied, compliant with ASTM E797, EN 14127 and EN 15317. Ideal for painted pipework and structures.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT CX4 ultrasonic thickness gauge with ThruPaint function","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_cx4_per_misure_ad_ultrasuoni_di_spessore-web-680x680-1.webp?fit=680%2C680&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_cx4_per_misure_ad_ultrasuoni_di_spessore-web-680x680-1.webp?fit=680%2C680&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_cx4_per_misure_ad_ultrasuoni_di_spessore-web-680x680-1.webp?fit=680%2C680&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/5512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/users\/157040980"}],"replies":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/comments?post=5512"}],"version-history":[{"count":1,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/5512\/revisions"}],"predecessor-version":[{"id":5513,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/5512\/revisions\/5513"}],"up":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/3202"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/media\/3203"}],"wp:attachment":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/media?parent=5512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}