{"id":2336,"date":"2025-07-17T12:04:13","date_gmt":"2025-07-17T10:04:13","guid":{"rendered":"https:\/\/www.efsfasteners.com\/portfolio-items\/gewindebolzen-fuer-ventile-und-waermetauscher-in-b16\/"},"modified":"2026-05-29T17:27:42","modified_gmt":"2026-05-29T15:27:42","slug":"gewindebolzen-fuer-ventile-und-waermetauscher-in-b16","status":"publish","type":"avada_portfolio","link":"https:\/\/www.efsfasteners.com\/de\/portfolio-items\/gewindebolzen-fuer-ventile-und-waermetauscher-in-b16\/","title":{"rendered":"Gewindebolzen f\u00fcr Ventile und W\u00e4rmetauscher in B16"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p><em>Dieses Case Study beschreibt Gewindebolzen f\u00fcr Ventile und W\u00e4rmetauscher, deren Besonderheit in den gro\u00dfen Abmessungen sowie im Werkstoff B16 liegt.<\/em><\/p>\n<p>In besonders anspruchsvollen Oil-&#038;-Gas-Anwendungen wie petrochemischen Anlagen, thermischen Kraftwerken und Raffinerien arbeiten Ventile und W\u00e4rmetauscher unter extremen Temperatur- und Druckbedingungen. Die Befestigungselemente \u2013 insbesondere Gewindebolzen \u2013 m\u00fcssen dabei gew\u00e4hrleisten: <\/p>\n<ul>\n<li>mechanische Dichtheit trotz thermischer Ausdehnung und h\u00e4ufiger Lastzyklen;<\/li>\n<li>Best\u00e4ndigkeit gegen Kriechverhalten und Hochtemperaturverformung;<\/li>\n<li>metallurgische Kompatibilit\u00e4t mit Flanschen, Ventilen und Dichtungen;<\/li>\n<li>stabile und pr\u00e4zise Gewinde auch nach mehrfachen Montage- und Demontagezyklen;<\/li>\n<\/ul>\n<h2><strong>Technische Eigenschaften der Gewindebolzen f\u00fcr Ventile und W\u00e4rmetauscher<\/strong><\/h2>\n<p>F\u00fcr einen wichtigen Kunden aus dem Oil-&#038;-Gas-Sektor hat EFS gro\u00dfdimensionierte Gewindebolzen mit folgenden Spezifikationen geliefert:<\/p>\n<ul>\n<li><strong>Werkstoff<\/strong>: ASTM A193 B16 (hochtemperaturbest\u00e4ndiger legierter Stahl)<\/li>\n<li><strong>Abmessungen<\/strong>: \u00d8 2\u201d 3\/4 x 571 mm<\/li>\n<li><strong>Gewinde<\/strong>: 8UN-Feingewinde mit finaler Nachbearbeitung des Gewindes<\/li>\n<li><strong>Zugeh\u00f6rige Komponenten<\/strong>: 2 Muttern ASTM A194 Gr.7<\/li>\n<\/ul>\n<p>Die Gewindebolzen wurden sowohl f\u00fcr Hochdruckventile als auch f\u00fcr W\u00e4rmetauscher im Dauerbetrieb bei \u00fcber 500\u00b0C eingesetzt.<\/p>\n<h2><strong>Warum B16 als Werkstoff?<\/strong><\/h2>\n<p>Die Wahl von <strong>ASTM A193 B16<\/strong> ergibt sich aus den Anforderungen an den Einsatz in Umgebungen mit Temperaturen bis zu 550\u2013600\u00b0C bei gleichzeitig hoher mechanischer Festigkeit. Dieser legierte Stahl mit Chrom- und Molybd\u00e4nanteil ist ausgelegt, um Kriechverhalten, Verformung und Hochtemperaturoxidation zu widerstehen. <\/p>\n<p>Das <strong>8UN<\/strong>-Feingewinde bietet:<\/p>\n<ul>\n<li>gr\u00f6\u00dfere Kontaktfl\u00e4che zwischen Innen- und Au\u00dfengewinde,<\/li>\n<li>h\u00f6here Stabilit\u00e4t der Verbindung auch bei Vibrationen,<\/li>\n<li>M\u00f6glichkeit zur \u00dcbertragung hoher Vorspannkr\u00e4fte ohne Gewindesch\u00e4digung.<\/li>\n<\/ul>\n<p>Die <strong>Gewindenachbearbeitung <\/strong>(Thread Recut) ist entscheidend, um exakte Toleranzen nach W\u00e4rmebehandlung oder Beschichtungsprozessen sicherzustellen.<\/p>\n<p>Die Muttern aus <strong>ASTM A194 Gr.7<\/strong> gew\u00e4hrleisten metallurgische Kompatibilit\u00e4t und vergleichbare mechanische Festigkeit, wodurch kritische Paarungen vermieden werden.<\/p>\n<h4><strong>Normative Referenzen<\/strong><\/h4>\n<p>Die Lieferung erfolgte gem\u00e4\u00df den wichtigsten technischen Normen der Branche:<\/p>\n<ul>\n<li><strong>ASTM A193<\/strong>: technische Spezifikation f\u00fcr Gewindebolzen in Hochtemperatur- und Hochdruckanwendungen;<\/li>\n<li><strong>ASTM A194<\/strong>: Muttern f\u00fcr kritische Anwendungen mit hochfesten Werkstoffen;<\/li>\n<li><strong>ASME B16.34<\/strong>: allgemeine Anforderungen f\u00fcr Industrieventile;<\/li>\n<li><strong>API 6A<\/strong>: Standard f\u00fcr Komponenten in \u00d6l- und Gasbohrungen;<\/li>\n<li><strong>EN 10269<\/strong>: Auswahl von St\u00e4hlen f\u00fcr Hochtemperatureinsatz.<\/li>\n<\/ul>\n<p>Alle Gewindebolzen wurden mit <strong>3.1-Zertifikat<\/strong> geliefert, vollst\u00e4ndig r\u00fcckverfolgbar und einer dimensionalen sowie visuellen Pr\u00fcfung gem\u00e4\u00df Kundenspezifikation unterzogen.<\/p>\n<p>Entdecken Sie, welche <a href=\"https:\/\/www.efsfasteners.com\/de\/produkte\/gewindebolzen-und-stehbolzen\/\">Gewindebolzen <\/a>und speziellen Befestigungssysteme wir fertigen k\u00f6nnen.<\/p>\n<p>Referenzen<\/p>\n<p>Normen <a href=\"https:\/\/store.astm.org\/a0193_a0193m-25.html\" target=\"_blank\" rel=\"noopener\">ASTM A193<\/a><\/p>\n<\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:600px;--awb-max-height:360px;\"><div class=\"video-shortcode\"><div class=\"fluid-width-video-wrapper\" style=\"padding-top:60%;\" ><iframe title=\"YouTube video player 1\" src=\"https:\/\/www.youtube.com\/embed\/UrHgS_b91zs?wmode=transparent&autoplay=0\" width=\"600\" height=\"360\" allowfullscreen allow=\"autoplay; fullscreen\"><\/iframe><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Case Study: Gewindebolzen f\u00fcr Ventile und gro\u00dfdimensionierte W\u00e4rmetauscher, gefertigt von EFS aus ASTM A193 B16. Ideal f\u00fcr Oil-&#038;-Gas-Anwendungen bei hohen Temperaturen, mit 8UN-Feingewinde und Muttern ASTM A194 Gr. 7. <\/p>\n","protected":false},"author":1,"featured_media":2337,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"portfolio_category":[60],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-2336","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-oil-gas-de"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gewindebolzen f\u00fcr Ventile und W\u00e4rmetauscher B16 - EFS Srl European Fasteners Solutions<\/title>\n<meta name=\"description\" content=\"Gewindebolzen f\u00fcr Ventile und gro\u00dfdimensionierte W\u00e4rmetauscher, gefertigt von EFS aus ASTM A193 B16 mit Muttern A194 Gr. 7. 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