{"id":152,"date":"2023-01-22T13:46:04","date_gmt":"2023-01-22T12:46:04","guid":{"rendered":"http:\/\/haertha.dev.neuekommunikation.de\/wordpress\/?post_type=verfahren&#038;p=152"},"modified":"2025-10-16T06:36:43","modified_gmt":"2025-10-16T04:36:43","slug":"gas-nitriding","status":"publish","type":"verfahren","link":"https:\/\/haertha.de\/en\/process\/gas-nitriding\/","title":{"rendered":"Gas nitriding"},"content":{"rendered":"<section id=\"popup-verfahren-header-block_5fe608dbe4c8309ade49086717c13063\" class=\"popup popup-video\"><div class=\"popup__content\"><div class=\"close\"><span><\/span><span><\/span><\/div><div class=\"embed-container\"><iframe loading=\"lazy\" title=\"VERFAHREN_Gasnitrieren_DE\" src=\"https:\/\/player.vimeo.com\/video\/814926504?h=ad792536d9&amp;dnt=1&amp;app_id=122963&#038;muted=0&#038;controls=1&#038;hd=1&#038;loop=1&#038;autohide=1&#038;autoplay=0&#038;dnt=1\" width=\"640\" height=\"300\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" class=\"video-play\"><\/iframe><\/div><\/div><\/section>\r\n\r\n<div id=\"verfahren-header-block_5fe608dbe4c8309ade49086717c13063\" class=\"verfahren-header-video\" >   \r\n\r\n    <div class=\"embed-container popup-vimeo\">\r\n        <iframe loading=\"lazy\" title=\"LOOP_Gasnitrieren\" src=\"https:\/\/player.vimeo.com\/video\/813128373?h=bb1046a146&amp;dnt=1&amp;app_id=122963&#038;controls=0&#038;hd=1&#038;loop=1&#038;autohide=0&#038;dnt=1&#038;autoplay=1&#038;muted=1\" width=\"640\" height=\"300\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>    <\/div>  \r\n    \r\n    <div class=\"video-button popup-button\" data-number=\"verfahren-header-block_5fe608dbe4c8309ade49086717c13063\"><a href=\"javascript:void(0);\" class=\"popup-button btn-video btn-cta\" data-number=\"verfahren-header-block_5fe608dbe4c8309ade49086717c13063\"><div class=\"btn-open-video\"><span class=\"btn-decor-left\"><\/span><span class=\"text\"> Show film<\/span><span class=\"btn-decor-right\"><\/span><\/div><\/a><\/div>\r\n<\/div>\r\n\n\n\r\n<div id=\"verfahren-text-block_36103bae2e2ffcd8a89b77fd1c731f3d\" class=\"verfahren-text toc\" data-toctitle=\"Das Verfahren und seine Vorteile\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">The process and its advantages<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p class=\" translation-block\">Gas nitriding improves the surfaces of iron-based workpieces that are subjected to high loads. Gas nitriding increases fatigue strength as well as wear resistance and resistance to wear due to scoring. It is carried out at low temperatures around 520\u00b0C. This ensures that warping is extremely low. Another version of gas nitriding is gas nitrocarburising, which involves the use of a gas atmosphere which provides carbon.<br>\n<br>\n\nGas nitrocarburising creates deeper layers than the Tenifer QPQ process (salt bath nitrocarburising). The treatment times can be extensive in some cases. Components that are sensitive to warping should be pre-treated beforehand by stress-free annealing.<br>\n<br>\nGas nitriding forms a compound layer on the workpieces that is composed of nitrides. A thin layer improves fatigue resistance. Thick layers improve resistance to wear and corrosion. Dissolved nitrogen atoms and nitride precipitates form the diffusion layer underneath the compound layer. The diffusion layer extends the service life of the components.<br>\n<br><\/p>\n<h3 class=\" translation-block\">NIOX and ALDOX: A special variation of gas nitrocarburising with post-oxidation<\/h3>\n<p class=\" translation-block\">If workpieces of premium quality are to undergo gas nitrocarburising and post-oxidation, they can be treated using the NIOX or ALDOX process. The surface receives a refined black look and significantly improved corrosion protection.<br>\n<br>\nGas nitriding offers a particularly wide range of applications, because different nitriding depths and temperatures can give the workpieces highly diverse properties.<br>\n<br><\/p>\n<h3>The advantages of gas nitriding at a glance<\/h3>\n<ul>\n<li>Higher bending fatigue resistance and fatigue strength<\/li>\n<li>Enhanced wear and scoring resistance<\/li>\n<li>Lower friction coefficient<\/li>\n<li>Good temperature resistance<\/li>\n<li>Reliably reproducible results<\/li>\n<li>Partial hardening possible<\/li>\n<li>Minimum warping makes reworking the components unnecessary<\/li>\n<\/ul>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_9d6bfe10b7f2a16b50b99e56996db5ca\" class=\"verfahren-text toc\" data-toctitle=\"Oberfl\u00e4chenh\u00e4rte und Nitrierh\u00e4rtetiefe verschiedener Werkstoffe\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Surface hardness and nitriding hardness depth of various materials<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p>The table below shows the surface hardnesses that gas nitriding can achieve on various materials.<br \/>\n&nbsp;<br \/>\nThe following applies: <\/p>\n<ul>\n<li>The higher the treatment temperature, the lower the intrinsic hardness of the nitrided layer<\/li>\n<li>The longer the nitriding time, the greater the nitriding hardness depth (NHD).<\/li>\n<li>The higher the temperature (500\u00b0C - 600\u00b0C), the deeper the nitrogen diffuses into the material in the same treatment time<\/li>\n<li>The higher the alloy content of the material, the higher the nitriding hardness of the material. However, the nitrogen\u2019s penetration depth into the material is also decreased.<\/li>\n<\/ul>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_312d8f404c94b3c1600eddfb5638a763\" class=\"verfahren-text toc\" data-toctitle=\"Anwendungsbereiche\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">the process and its advantages<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p class=\" translation-block\"><strong>Gas nitriding is particularly suitable for alloy materials<\/strong>, as they contain nitride-forming elements. Examples include chromium, molybdenum, vanadium, and aluminium. These materials include tool steels (cold worked and hot worked steels as well as sectional steels) and spring steel, which is widely used in the automotive industry. Materials previously hardened or tempered will produce the best results. In contrast, plasma nitriding is more commonly used for stainless steel or high-alloy materials.<br>\n<br>\n<strong>Typical components:<\/strong><\/p>\n<ul>\n<li>Gearboxes<\/li>\n<li>Valve components<\/li>\n<li>Springs<\/li>\n<li>Gear wheels<\/li>\n<li>Drive shafts<\/li>\n<li>Guide rails<\/li>\n<li>Extruder screws<\/li>\n<li>Spindles<\/li>\n<li>Cam discs<\/li>\n<li>Hydraulic cylinders<\/li>\n<li>Forging dies<\/li>\n<li>Bending punches<\/li>\n<li>Die plates<\/li>\n<li>Injection moulding tools<\/li>\n<li>Camshafts<\/li>\n<li>Crankshafts<\/li>\n<li>Injection nozzles<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-size: \">Summary: Which materials are suitable?<\/span><\/h3>\n<ul>\n<li>Nitriding steels (for high surface hardness alloyed with aluminium, chromium, molybdenum, and vanadium)<\/li>\n<li>Quenched and tempered steels<\/li>\n<li>Steel materials<\/li>\n<li>Cast materials<\/li>\n<li>Sintered materials<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_d8dc8edb4decc3265a25024c352983db\" class=\"verfahren-text toc\" data-toctitle=\"Checkliste: Gasnitrieren beauftragen\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Check list: Ordering gas nitriding<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p>If you would like us to treat your workpieces or materials using gas nitriding, we will gladly advise you on the best procedure. You can use the check list below to make your preparations for the order.<\/p>\n<ul>\n<li>Which material is to be treated, and what is its condition?<\/li>\n<li>What is the target hardness (including tolerance range in HV)?<\/li>\n<li>What is the desired nitriding hardness depth (including tolerance range in mm)?<\/li>\n<li>If applicable, which areas should be nitrided, and where can the hardness be measured?<\/li>\n<li>If applicable, how thick should the compound layer be (including tolerance range in \u03bcm)?<\/li>\n<\/ul>\n<p>&nbsp;<br \/>\nFor gas nitriding to be successful, the surface of the workpiece must additionally meet the following requirements:<br>\n<br><\/p>\n<ul>\n<li>Free of oil, grease, and rust<\/li>\n<li>Metallically blank<\/li>\n<li>Neither decarbonised nor oxidised<\/li>\n<li>No edge layers<\/li>\n<li>Ideally no surface compaction present, as this hinders the formation of the nitrided layer<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Key technical figures:<\/h3>\n<ul>\n<li>Temperature: up to 600 \u00b0C<\/li>\n<li>Size of furnace: Diameter up to 1,100 X 3,300 mm<\/li>\n<li>Processing time: 12 hours or longer<\/li>\n<li>Nitriding hardness depth: up to 0.6 mm<\/li>\n<\/ul>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Gasnitrieren, oder auch Langzeitgasnitrieren, ist ein thermochemisches W\u00e4rmebehandlungsverfahren. Es eignet sich vor allem zum H\u00e4rten von Werkstoffen, die zu Verzug neigen oder hohen Belastungen ausgesetzt sind. Beim Gasnitrieren dringt Stickstoff in die Stahloberfl\u00e4che ein und verbessert zahlreiche Eigenschaften von Bauteilen. Auch ein teilweises Nitrieren ist m\u00f6glich.<\/p>\n<p>Egal ob Gasnitrieren oder andere moderne Verfahren: Wir beraten Sie gerne pers\u00f6nlich zur Optimierung Ihrer Bauteile. Ganz nach Bedarf als Einzelteil, in Sondergr\u00f6\u00dfen oder als Serienproduktion. Wir verf\u00fcgen \u00fcber mehrere Kammeranlagen und Schachtofenanlagen bis \u00d8 1.100 x 3.300 mm. <\/p>","protected":false},"author":9,"featured_media":5741,"menu_order":101,"template":"","verfahrenstechnik":[6],"class_list":["post-152","verfahren","type-verfahren","status-publish","has-post-thumbnail","hentry","verfahrenstechnik-nitrieren"],"acf":{"text_cta":"Gasnitrieren, oder auch Langzeitgasnitrieren, ist ein thermochemisches W\u00e4rmebehandlungsverfahren. Es eignet sich vor allem zum H\u00e4rten von Werkstoffen, die zu Verzug neigen oder hohen Belastungen ausgesetzt sind. Beim Gasnitrieren dringt Stickstoff in die Stahloberfl\u00e4che ein und verbessert zahlreiche Eigenschaften von Bauteilen. Auch ein teilweises Nitrieren ist m\u00f6glich.\r\n\r\nEgal ob Gasnitrieren oder andere moderne Verfahren: Wir beraten Sie gerne pers\u00f6nlich zur Optimierung Ihrer Bauteile. Ganz nach Bedarf als Einzelteil, in Sondergr\u00f6\u00dfen oder als Serienproduktion. Wir verf\u00fcgen \u00fcber mehrere Kammeranlagen und Schachtofenanlagen bis zu einem Querschnitt von 1.100 mm x 3.300 mm. \r\n","contact_location":[12,49,250,248,252,256,254,260,11495,12944],"materials":"on","tablepress":[{"tabellen_name_":"Verg\u00fctungsst\u00e4hle \/ Baust\u00e4hle","tabelpress_shortcode":"[table id=51 \/]"},{"tabellen_name_":"Nitrierst\u00e4hle","tabelpress_shortcode":"[table id=52 \/]"},{"tabellen_name_":"Einsatzst\u00e4hle","tabelpress_shortcode":"[table id=53 \/]"},{"tabellen_name_":"Kaltarbeitsst\u00e4hle  \/ Warmarbeitsst\u00e4hle","tabelpress_shortcode":"[table id=54 \/]"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gasnitrieren | H\u00c4RTHA GROUP<\/title>\n<meta name=\"description\" content=\"Gasnitrieren: Thermochemisches Randschichtverfahren zur Erh\u00f6hung der Verschlei\u00dffestigkeit, der Oberfl\u00e4chenh\u00e4rte und der Dauerfestigkeit.\" \/>\n<meta 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