{"id":2801,"date":"2026-03-10T03:46:08","date_gmt":"2026-03-10T02:46:08","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2801"},"modified":"2026-03-10T03:46:18","modified_gmt":"2026-03-10T02:46:18","slug":"nickel-alloy-selection-for-oil-and-gas","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/de\/nickel-alloy-selection-for-oil-and-gas\/","title":{"rendered":"Auswahl von Nickellegierungen f\u00fcr saure \u00d6l- und Gasbohrungen"},"content":{"rendered":"<p data-path-to-node=\"2\">Die Betriebsbedingungen in der modernen Upstream-F\u00f6rderung sind brutal. Die Temperaturen \u00fcbersteigen routinem\u00e4\u00dfig 400\u00b0F (204\u00b0C), w\u00e4hrend der Druck im Bohrloch 20.000 psi \u00fcbersteigen kann. Wenn erh\u00f6hte Mengen an Schwefelwasserstoff (H\u2082S), Kohlendioxid (CO\u2082) und hochkonzentrierte Chloride in den Ringraum gelangen, zersetzen sich Standard-Kohlenstoffst\u00e4hle und minderwertige Edelst\u00e4hle schnell. Die richtige Wahl der Nickellegierung f\u00fcr \u00d6l und Gas ist nicht nur eine betriebliche Pr\u00e4ferenz, sondern eine grundlegende technische Notwendigkeit, um katastrophale Ausf\u00e4lle am Bohrlochkopf oder im Bohrloch zu verhindern. Unser Team bei 28Nickel hat Jahrzehnte damit verbracht, diese metallurgischen Ausfallarten zu analysieren. Ein rigoroser Ansatz bei der Materialspezifikation gew\u00e4hrleistet die langfristige Integrit\u00e4t von Anlagen und minimiert die inakzeptablen Risiken ungeplanter Bohrlocheingriffe.<\/p>\n<p data-path-to-node=\"3\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-2802\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/179.jpg\" alt=\"Auswahl von Nickellegierungen f\u00fcr saure \u00d6l- und Gasbohrungen\" width=\"1200\" height=\"896\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/179.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/179-300x224.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/179-1024x765.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/179-768x573.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/179-16x12.jpg 16w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2 data-path-to-node=\"4\">Kritische Variablen bei der Auswahl von Nickellegierungen f\u00fcr \u00d6l und Gas<\/h2>\n<p data-path-to-node=\"5\">Bei der Bewertung von Hochleistungswerkstoffen geht es in erster Linie um die Abschw\u00e4chung spezifischer, \u00e4u\u00dferst aggressiver Korrosionsmechanismen. Sulfid-Spannungsrisskorrosion (SSC) und Chlorid-Spannungskorrosionsrisskorrosion (CSCC) diktieren die absoluten Grenzbedingungen f\u00fcr die Lebensf\u00e4higkeit von Werkstoffen. Bei der Auswahl von Nickellegierungen f\u00fcr die \u00d6l- und Gasindustrie m\u00fcssen wir uns strikt an die Richtlinien NACE MR0175 \/ ISO 15156 halten, doch die Einhaltung dieser Richtlinien allein garantiert noch keine langfristige Leistung unter dynamischen Belastungen.<\/p>\n<p data-path-to-node=\"6\">Mischkristallverfestigte Legierungen wie UNS N08825 (Alloy 825) und UNS N06625 (Alloy 625) bieten aufgrund ihres hohen Molybd\u00e4n- und Chrommassenanteils eine au\u00dfergew\u00f6hnliche lokale Korrosionsbest\u00e4ndigkeit. Die Legierung 825 bietet eine \u00e4u\u00dferst kosteneffiziente Basis f\u00fcr m\u00e4\u00dfig saure Umgebungen, da sie auf ihrer Nickelbasis von etwa 42% gegen chloridinduzierte transgranulare Risse best\u00e4ndig ist. Mit steigendem Partialdruck von H\u2082S erfordert die thermodynamische Stabilit\u00e4t der passiven Oxidschicht jedoch die schwereren Legierungszus\u00e4tze, die in der Legierung 625 enthalten sind. Um diese Unterschiede zu quantifizieren, werten Ingenieure die Lochfra\u00dfbest\u00e4ndigkeits-\u00c4quivalenzzahl aus, die mathematisch wie folgt ausgedr\u00fcckt wird <span class=\"math-inline\" data-math=\"PREN = \\%Cr + 3.3 \\times \\%Mo + 16 \\times \\%N\" data-index-in-node=\"681\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">PREN<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">%<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">r<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">3.3<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">%<\/span><span class=\"mord mathnormal\">M<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">16<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">%<\/span><span class=\"mord mathnormal\">N<\/span><\/span><\/span><\/span><\/span>, neben den grundlegenden mechanischen Fundamenten.<\/p>\n<table data-path-to-node=\"7\">\n<thead>\n<tr>\n<td><strong>Legierungssorte<\/strong><\/td>\n<td><strong>UNS-Bezeichnung<\/strong><\/td>\n<td><strong>Nickel (Ni) %<\/strong><\/td>\n<td><strong>Chrom (Cr) %<\/strong><\/td>\n<td><strong>Molybd\u00e4n (Mo) %<\/strong><\/td>\n<td><strong>Min. Streckgrenze (ksi)<\/strong><\/td>\n<td><strong>Mechanismus zur St\u00e4rkung der Prim\u00e4rversorgung<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"7,1,0,0\"><b data-path-to-node=\"7,1,0,0\" data-index-in-node=\"0\">Legierung 825<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,1,1,0\">N08825<\/span><\/td>\n<td><span data-path-to-node=\"7,1,2,0\">38.0 &#8211; 46.0<\/span><\/td>\n<td><span data-path-to-node=\"7,1,3,0\">19.5 &#8211; 23.5<\/span><\/td>\n<td><span data-path-to-node=\"7,1,4,0\">2.5 &#8211; 3.5<\/span><\/td>\n<td><span data-path-to-node=\"7,1,5,0\">35 (gegl\u00fcht)<\/span><\/td>\n<td><span data-path-to-node=\"7,1,6,0\">Solide L\u00f6sung<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,2,0,0\"><b data-path-to-node=\"7,2,0,0\" data-index-in-node=\"0\">Legierung 625<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,2,1,0\">N06625<\/span><\/td>\n<td><span data-path-to-node=\"7,2,2,0\">58,0 Min<\/span><\/td>\n<td><span data-path-to-node=\"7,2,3,0\">20.0 &#8211; 23.0<\/span><\/td>\n<td><span data-path-to-node=\"7,2,4,0\">8.0 &#8211; 10.0<\/span><\/td>\n<td><span data-path-to-node=\"7,2,5,0\">60 (gegl\u00fcht)<\/span><\/td>\n<td><span data-path-to-node=\"7,2,6,0\">Solide L\u00f6sung<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,3,0,0\"><b data-path-to-node=\"7,3,0,0\" data-index-in-node=\"0\">Legierung 718<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,3,1,0\">N07718<\/span><\/td>\n<td><span data-path-to-node=\"7,3,2,0\">50.0 &#8211; 55.0<\/span><\/td>\n<td><span data-path-to-node=\"7,3,3,0\">17.0 &#8211; 21.0<\/span><\/td>\n<td><span data-path-to-node=\"7,3,4,0\">2.8 &#8211; 3.3<\/span><\/td>\n<td><span data-path-to-node=\"7,3,5,0\">120 (\u00c4lter)<\/span><\/td>\n<td><span data-path-to-node=\"7,3,6,0\">Ausscheidungsh\u00e4rtung<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,4,0,0\"><b data-path-to-node=\"7,4,0,0\" data-index-in-node=\"0\">Legierung 925<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,4,1,0\">N09925<\/span><\/td>\n<td><span data-path-to-node=\"7,4,2,0\">42.0 &#8211; 46.0<\/span><\/td>\n<td><span data-path-to-node=\"7,4,3,0\">19.5 &#8211; 22.5<\/span><\/td>\n<td><span data-path-to-node=\"7,4,4,0\">2.5 &#8211; 3.5<\/span><\/td>\n<td><span data-path-to-node=\"7,4,5,0\">105 (\u00c4lter)<\/span><\/td>\n<td><span data-path-to-node=\"7,4,6,0\">Ausscheidungsh\u00e4rtung<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-path-to-node=\"8\">Gleichgewicht zwischen Festigkeit und Korrosion im sauren Betrieb<\/h2>\n<p data-path-to-node=\"9\">W\u00e4hrend die Korrosionsbest\u00e4ndigkeit von gr\u00f6\u00dfter Bedeutung ist, sind f\u00fcr Bohrlochvervollst\u00e4ndigungen wie Packer, unterirdische Sicherheitsventile und Dorne extreme Belastungsf\u00e4higkeiten erforderlich. Diese doppelte Anforderung hat gro\u00dfen Einfluss auf die Auswahl der Nickellegierung f\u00fcr \u00d6l- und Gasf\u00f6rderanlagen. In Hochdruck-Hochtemperatur-Umgebungen (HPHT) ver\u00e4ndern Temperaturgradienten die Kinetik der Korrosion erheblich. Wenn die Temperaturen \u00fcber 149\u00b0C (300\u00b0F) steigen, sinkt der Schwellenwert f\u00fcr lokale Lochfra\u00dfbildung in Legierungen der unteren Klasse drastisch. Die Ingenieure m\u00fcssen die maximal zu erwartenden Betriebstemperaturen mit den spezifischen Halogenidkonzentrationen in der Formationsfl\u00fcssigkeit abgleichen.<\/p>\n<p data-path-to-node=\"10\">Um massive Axialbelastungen ohne Abstriche bei der Korrosionsbest\u00e4ndigkeit zu bew\u00e4ltigen, sind ausscheidungsh\u00e4rtbare (PH) G\u00fcten wie Alloy 718 und Alloy 925 unerl\u00e4sslich. Durch den Einsatz sorgf\u00e4ltiger W\u00e4rmebehandlungen (L\u00f6sungsgl\u00fchen mit anschlie\u00dfender Alterung) k\u00f6nnen submikroskopische Ausscheidungen wie Gamma Prime (<span class=\"math-inline\" data-math=\"\\gamma'\" data-index-in-node=\"275\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) und Gamma-Doppelprimzahl (<span class=\"math-inline\" data-math=\"\\gamma''\" data-index-in-node=\"308\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">\u2032\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) innerhalb der austenitischen Matrix bilden. Die Legierung 718 kann zuverl\u00e4ssig Mindeststreckgrenzen von \u00fcber 120 ksi erreichen.<\/p>\n<p data-path-to-node=\"11\">Der Prozess der Ausscheidungsh\u00e4rtung bringt jedoch tiefgreifende metallurgische Probleme mit sich. Ungeeignete W\u00e4rmebehandlungsparameter k\u00f6nnen zur Bildung sch\u00e4dlicher Phasen f\u00fchren, wie der Laves-Phase oder der Delta-Phase (<span class=\"math-inline\" data-math=\"\\delta\" data-index-in-node=\"211\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b4<\/span><\/span><\/span><\/span><\/span>) Phase an den Korngrenzen. Diese mikrostrukturellen Anomalien dienen als Ausl\u00f6ser f\u00fcr lokale galvanische Korrosion oder Verspr\u00f6dung in sauren Salzl\u00f6sungen. Die Optimierung der Auswahl von Nickellegierungen f\u00fcr die \u00d6l- und Gasindustrie erfordert daher nicht nur die Angabe einer Sorte auf einer Zeichnung, sondern auch eine strenge Definition des thermischen Verarbeitungsprozesses und der mikrostrukturellen Akzeptanzkriterien.<\/p>\n<p data-path-to-node=\"12\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-2803\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180.jpg\" alt=\"Auswahl von Nickellegierungen f\u00fcr saure \u00d6l- und Gasbohrungen\" width=\"1024\" height=\"765\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-300x224.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-768x574.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-16x12.jpg 16w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p data-path-to-node=\"13\">The margin for error in deepwater and sour well environments is absolute zero. Unplanned workovers resulting from material degradation cost millions of dollars and pose severe environmental hazards. Effective nickel alloy selection for oil and gas applications requires a deep dive into fluid chemistry, stress profiles, and precise metallurgical control. At 28Nickel, we understand the applied physics and metallurgy behind every component specification. If your engineering team is evaluating material options for an upcoming HPHT project, reach out to our technical team. Let&#8217;s discuss your specific wellbore chemistry and mechanical load requirements to engineer a reliable, long-lasting material solution.<\/p>\n<h2 data-path-to-node=\"14\">Verwandte Fragen und Antworten<\/h2>\n<p data-path-to-node=\"15\"><b data-path-to-node=\"15\" data-index-in-node=\"0\">F1: Wie wirkt sich der Partialdruck von Schwefelwasserstoff (H\u2082S) auf die Auswahl von Nickellegierungen f\u00fcr \u00d6l und Gas aus?<\/b><\/p>\n<p data-path-to-node=\"15\"><b data-path-to-node=\"15\" data-index-in-node=\"107\">A:<\/b> Der Partialdruck von H\u2082S bestimmt den Schweregrad der sulfidischen Spannungsrissbildung (SSC). NACE MR0175 legt strenge Umweltgrenzwerte f\u00fcr verschiedene Legierungen auf der Grundlage von H\u2082S-Partialdruck, In-situ-pH-Wert und Temperatur fest. H\u00f6here H\u2082S-Konzentrationen erfordern in der Regel eine Umstellung von Standard-Mischkristalllegierungen auf hochlegierte oder spezielle ausscheidungsgeh\u00e4rtete Sorten mit strengen H\u00e4rtekontrollen (z. B. maximal 40 HRC f\u00fcr Alloy 718), um Wasserstoffverspr\u00f6dung zu verhindern.<\/p>\n<p data-path-to-node=\"16\"><b data-path-to-node=\"16\" data-index-in-node=\"0\">F2: Warum ist die Pitting Resistance Equivalent Number (PREN) allein f\u00fcr die Materialspezifikation nicht ausreichend?<\/b><\/p>\n<p data-path-to-node=\"16\"><b data-path-to-node=\"16\" data-index-in-node=\"106\">A:<\/b> While PREN provides a reliable baseline for predicting resistance to localized pitting and crevice corrosion based on chemical composition, it entirely ignores microstructural phase stability, mechanical loading requirements, and the material&#8217;s susceptibility to Environmentally Assisted Cracking (EAC) under tensile stress. A holistic metallurgical evaluation is mandatory.<\/p>\n<p data-path-to-node=\"17\"><b data-path-to-node=\"17\" data-index-in-node=\"0\">F3: Kann Alloy 925 als direkter, hochfester Ersatz f\u00fcr Alloy 825 im Bohrloch verwendet werden?<\/b><\/p>\n<p data-path-to-node=\"17\"><b data-path-to-node=\"17\" data-index-in-node=\"88\">A:<\/b> Ja, die Legierung 925 spiegelt im Wesentlichen die grundlegende Korrosionsbest\u00e4ndigkeit der Legierung 825 wider, enth\u00e4lt aber zus\u00e4tzlich kritische Mengen an Titan und Aluminium f\u00fcr die Ausscheidungsh\u00e4rtung. Dies macht es zu einer au\u00dfergew\u00f6hnlichen Wahl f\u00fcr Bohrlochkopfkomponenten, Aufh\u00e4ngungen und Bohrlochwerkzeuge, bei denen die chemische Best\u00e4ndigkeit von 825 ausreichend ist, aber eine h\u00f6here Streckgrenze (bis zu 110 ksi) strukturell durch die mechanische Konstruktion erforderlich ist.<\/p>","protected":false},"excerpt":{"rendered":"<p>Operating conditions in modern upstream extraction are brutal. Temperatures routinely exceed 400\u00b0F (204\u00b0C), while localized downhole pressures can surpass 20,000 psi. When you introduce elevated levels of hydrogen sulfide (H\u2082S), carbon dioxide (CO\u2082), and highly concentrated chlorides into the annulus, standard carbon steels and lower-grade stainless steels degrade rapidly. Proper nickel alloy selection for oil [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2803,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2801","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1773111037:1"],"_edit_last":["1"],"rank_math_seo_score":["74"],"rank_math_description":["Chloride stress cracking threatens deep wells. Optimizing nickel alloy selection for oil and gas mitigates this risk. Which grade survives?"],"rank_math_focus_keyword":["nickel alloy selection for oil and gas"],"_thumbnail_id":["2803"],"_wp_page_template":["default"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:38:\"nickel alloy selection for oil and gas\";}"],"rank_math_internal_links_processed":["1"],"site-sidebar-layout":["default"],"ast-site-content-layout":["default"],"site-content-style":["default"],"site-sidebar-style":["default"],"theme-transparent-header-meta":["default"],"astra-migrate-meta-layouts":["set"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:8:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";i:7;s:10:\"core\/image\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1777087428\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_elementor_page_assets":["a:0:{}"],"_uag_css_file_name":["uag-css-2801.css"]},"uagb_featured_image_src":{"full":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180.jpg",1024,765,false],"thumbnail":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-150x150.jpg",150,150,true],"medium":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-300x224.jpg",300,224,true],"medium_large":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-768x574.jpg",768,574,true],"large":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180.jpg",1024,765,false],"1536x1536":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180.jpg",1024,765,false],"2048x2048":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180.jpg",1024,765,false],"trp-custom-language-flag":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/180-16x12.jpg",16,12,true]},"uagb_author_info":{"display_name":"nickel","author_link":"https:\/\/www.nickelcasting.com\/de\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"Operating conditions in modern upstream extraction are brutal. Temperatures routinely exceed 400\u00b0F (204\u00b0C), while localized downhole pressures can surpass 20,000 psi. When you introduce elevated levels of hydrogen sulfide (H\u2082S), carbon dioxide (CO\u2082), and highly concentrated chlorides into the annulus, standard carbon steels and lower-grade stainless steels degrade rapidly. Proper nickel alloy selection for oil&hellip;","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts\/2801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/comments?post=2801"}],"version-history":[{"count":1,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts\/2801\/revisions"}],"predecessor-version":[{"id":2804,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts\/2801\/revisions\/2804"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/media\/2803"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/media?parent=2801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/categories?post=2801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/tags?post=2801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}