{"id":3189,"date":"2026-03-27T15:03:06","date_gmt":"2026-03-27T14:03:06","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?page_id=3189"},"modified":"2026-03-27T15:07:41","modified_gmt":"2026-03-27T14:07:41","slug":"seamless","status":"publish","type":"page","link":"https:\/\/www.nickelcasting.com\/it\/product-forms\/pipe-and-tube\/seamless\/","title":{"rendered":"Tubo senza saldatura"},"content":{"rendered":"
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\n\n
\n Casa<\/a> \n \/<\/span> \n Forme di prodotto<\/a>\n \/<\/span> \n Tubi e tubature<\/a>\n \/<\/span> \n Senza cuciture\n <\/div>\n\n
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Tubi e tubi in lega di nichel senza saldatura<\/h1>\n \n

\n Quando l'assoluta integrit\u00e0 strutturale e il massimo contenimento della pressione non sono negoziabili, i tubolari senza saldatura sono l'unica scelta possibile. Estrusi e forati da billette solide in lega di nichel, i tubi senza saldatura 28Nickel eliminano le vulnerabilit\u00e0 associate ai cordoni di saldatura. Sono progettati per garantire un'affidabilit\u00e0 senza pari nei reattori chimici, nell'estrazione di petrolio e gas in acque profonde e nei sistemi idraulici aerospaziali critici.\n <\/p>\n <\/div>\n\n

Gradi di lega disponibili per tubi senza saldatura<\/h2>\n

\n La natura aggressiva dei fluidi corrosivi ad alta temperatura richiede una struttura omogenea del materiale. Forniamo prodotti tubolari senza saldatura nelle superleghe pi\u00f9 performanti al mondo, garantendo una resistenza alla corrosione uniforme su tutta la lunghezza del tubo.\n <\/p>\n \n

\n

Selezionare un grado per visualizzare le specifiche del materiale:<\/h3>\n
\n Inconel\u00ae 625 (eccellente resistenza alla vaiolatura)<\/a>\n Inconel\u00ae 718 (alta resistenza in foro\/OCTG)<\/a>\n \n Monel\u00ae 400 (tubazioni per acido HF e tubazioni marine)<\/a>\n Monel\u00ae K-500 (tubo per pompe ad alta resistenza)<\/a>\n \n Hastelloy\u00ae C-276 (trasporto chimico severo)<\/a>\n MP35N\u00ae (tubi medici e aerospaziali)<\/a>\n <\/div>\n <\/div>\n\n

Vantaggi ingegneristici della costruzione senza saldatura<\/h2>\n

\n A differenza delle alternative saldate, i tubi senza saldatura possiedono una struttura a grana continua e uniforme, che offre notevoli vantaggi nelle applicazioni critiche.\n <\/p>\n \n

\n \n
\n
\n
\ud83d\udee1\ufe0f<\/div>\n

Valori massimi di pressione<\/h3>\n <\/div>\n

Senza un cordone di saldatura longitudinale (che \u00e8 tradizionalmente il punto pi\u00f9 debole sotto sforzo), i tubi senza saldatura possono sopportare pressioni di esercizio tipicamente 20% superiori a quelle dei tubi saldati delle stesse dimensioni e lega.<\/p>\n <\/div>\n\n

\n
\n
\ud83d\udd2c<\/div>\n

Resistenza alla corrosione omogenea<\/h3>\n <\/div>\n

L'assenza di una zona termicamente alterata (ZTA) della saldatura significa che non ci sono cambiamenti metallurgici localizzati. Ci\u00f2 garantisce un'assoluta uniformit\u00e0 nella resistenza alla vaiolatura localizzata e alla corrosione intergranulare.<\/p>\n <\/div>\n\n

\n
\n
\ud83c\udfaf<\/div>\n

Tolleranze dimensionali di precisione<\/h3>\n <\/div>\n

I tubi senza saldatura trafilati a freddo offrono tolleranze incredibilmente strette sul diametro esterno (OD) e sullo spessore della parete (WT), rendendoli essenziali per il corretto inserimento e l'espansione nei tubi dello scambiatore di calore.<\/p>\n <\/div>\n\n <\/div>\n\n

Prodotti tubolari primari senza saldatura<\/h2>\n \n
\n\n
\n
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\u2668\ufe0f<\/div>\n

Tubi per scambiatori di calore e condensatori<\/h3>\n <\/div>\n

Prodotti in base a rigorose specifiche OD e WT (ad esempio, ASTM B163). Progettati per un trasferimento termico efficiente e per resistere a mezzi di raffreddamento aggressivi come l'acqua di mare o l'acido solforico.<\/p>\n <\/div>\n\n

\n
\n
\ud83c\udf9b\ufe0f<\/div>\n

Tubi per strumentazione<\/h3>\n <\/div>\n

Tubi di piccolo diametro e di alta precisione (disponibili in lunghezze diritte o in rotoli). Utilizzato per linee di controllo idraulico, manometri e ombelicali per iniezione chimica nelle piattaforme offshore.<\/p>\n <\/div>\n\n

\n
\n
\ud83d\udee2\ufe0f<\/div>\n

Tubazioni di processo a parete pesante<\/h3>\n <\/div>\n

Tubi senza saldatura di grandi dimensioni nominali (NPS) in versioni pesanti (Sch 80, Sch 160, XXH). Progettati per le arterie principali degli impianti chimici che trattano fluidi corrosivi ad alta temperatura e pressione.<\/p>\n <\/div>\n\n

\n
\n
\ud83d\udd73\ufe0f<\/div>\n

OCTG \/ Tubi da pozzo<\/h3>\n <\/div>\n

Gli OCTG (Oil Country Tubular Goods) sono utilizzati in profondit\u00e0. Formati da superleghe ad alta resistenza (come Inconel 718<\/a>) per resistere ai gas acidi (H2S), all'estrema pressione di fondo foro e alle cricche da stress da cloruro.<\/p>\n <\/div>\n\n <\/div>\n\n

Specifiche e dimensioni standard<\/div>\n
\n \n \n \n \n \n \n \n \n \n
Categoria di specifiche<\/th>\n Dettagli e standard<\/th>\n <\/tr>\n <\/thead>\n
Specifiche standard<\/strong><\/td>\n ASTM B163 (tubo per condensatore\/scambiatore di calore), ASTM B165 (Monel senza saldatura), ASTM B167 \/ B444 (Inconel senza saldatura), ASTM B622 (Hastelloy senza saldatura)<\/td>\n <\/tr>\n
Gamma di dimensioni del tubo (NPS)<\/strong><\/td>\n Da 1\/8\" NB a 24\" NB (orari: 10S, 40S, 80S, 160, XXH)<\/td>\n <\/tr>\n
Gamma di dimensioni del tubo (OD)<\/strong><\/td>\n Da 1\/16\" OD a 8\" OD (spessore della parete: da 0,010\" a 0,500\"+)<\/td>\n <\/tr>\n
Condizioni di consegna<\/strong><\/td>\n Ricotto e decapato, ricotto brillante, trafilato a freddo, estruso<\/td>\n <\/tr>\n
Prove non distruttive (NDT)<\/strong><\/td>\n 100% Prove idrostatiche, prove a correnti parassite (ECT), prove a ultrasuoni (UT)<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n
\n

Avete bisogno di affidabilit\u00e0 senza soluzione di continuit\u00e0?<\/h3>\n

Specificate se avete bisogno di tubi (NPS e Schedule) o di tubi (OD e spessore della parete), insieme al grado di lega richiesto (ad esempio, tubi Hastelloy C276 senza saldatura). Forniamo una tracciabilit\u00e0 completa del materiale e personalizzato<\/a> servizi di taglio a misura.<\/p>\n Richiedete un preventivo per tubi senza saldatura<\/a>\n <\/div>\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Home \/ Product Forms \/ Pipe & Tube \/ Seamless Seamless Nickel Alloy Pipe & Tube When absolute structural integrity and maximum pressure containment are non-negotiable, seamless tubulars are the only choice. Extruded and pierced from solid nickel alloy billets, 28Nickel’s seamless pipes and tubes eliminate the vulnerabilities associated with weld seams. They are engineered […]<\/p>","protected":false},"author":1,"featured_media":0,"parent":3181,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","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":"disabled","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":""},"class_list":["post-3189","page","type-page","status-publish","hentry"],"spectra_custom_meta":{"_edit_lock":["1774620520:1"],"_edit_last":["1"],"_elementor_edit_mode":["builder"],"_astra_content_layout_flag":["disabled"],"ast-title-bar-display":["disabled"],"ast-featured-img":["disabled"],"site-content-layout":["page-builder"],"ast-site-content-layout":["full-width-container"],"site-sidebar-layout":["no-sidebar"],"_elementor_template_type":["wp-page"],"_elementor_version":["3.33.2"],"_elementor_pro_version":["3.32.3"],"rank_math_seo_score":["56"],"rank_math_internal_links_processed":["1"],"_wp_page_template":["default"],"_elementor_data":["[{\"id\":\"5867cec\",\"elType\":\"container\",\"settings\":{\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"11439dc\"}]},\"elements\":[{\"id\":\"52a4c03\",\"elType\":\"widget\",\"settings\":{\"html\":\"\\n\\n

\\n\\n
\\n Home<\\\/a> \\n \\\/<\\\/span> \\n Product Forms<\\\/a>\\n \\\/<\\\/span> \\n Pipe & Tube<\\\/a>\\n \\\/<\\\/span> \\n Seamless\\n <\\\/div>\\n\\n
\\n

Seamless Nickel Alloy Pipe & Tube<\\\/h1>\\n \\n

\\n When absolute structural integrity and maximum pressure containment are non-negotiable, seamless tubulars are the only choice. Extruded and pierced from solid nickel alloy billets, 28Nickel's seamless pipes and tubes eliminate the vulnerabilities associated with weld seams. They are engineered to deliver unmatched reliability in severe chemical reactors, deep-water oil & gas extraction, and critical aerospace hydraulic systems.\\n <\\\/p>\\n <\\\/div>\\n\\n

Available Alloy Grades for Seamless Pipe & Tube<\\\/h2>\\n

\\n The aggressive nature of high-temperature corrosive fluids demands a homogenous material structure. We supply seamless tubular products in the world's highest-performing superalloys, ensuring uniform corrosion resistance across the entire length of the pipe.\\n <\\\/p>\\n \\n

\\n

Select a Grade to View Material Specs:<\\\/h3>\\n
\\n Inconel\\u00ae 625 (Excellent Pitting Resistance)<\\\/a>\\n Inconel\\u00ae 718 (High Strength Downhole\\\/OCTG)<\\\/a>\\n \\n Monel\\u00ae 400 (HF Acid & Marine Piping)<\\\/a>\\n Monel\\u00ae K-500 (High Strength Pump Tubing)<\\\/a>\\n \\n Hastelloy\\u00ae C-276 (Severe Chemical Transport)<\\\/a>\\n MP35N\\u00ae (Medical & Aerospace Tubing)<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n

Engineering Advantages of Seamless Construction<\\\/h2>\\n

\\n Unlike welded alternatives, seamless pipes and tubes possess a continuous, uniform grain structure, offering distinct advantages in critical applications.\\n <\\\/p>\\n \\n

\\n \\n
\\n
\\n
\\ud83d\\udee1\\ufe0f<\\\/div>\\n

Maximum Pressure Ratings<\\\/h3>\\n <\\\/div>\\n

Without a longitudinal weld seam (which is traditionally the weakest point under hoop stress), seamless pipes can withstand working pressures typically 20% higher than welded pipes of the same dimensions and alloy.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udd2c<\\\/div>\\n

Homogeneous Corrosion Resistance<\\\/h3>\\n <\\\/div>\\n

The absence of a weld Heat-Affected Zone (HAZ) means there are no localized metallurgical changes. This provides absolute uniformity in resisting localized pitting and intergranular corrosion.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83c\\udfaf<\\\/div>\\n

Precision Dimensional Tolerances<\\\/h3>\\n <\\\/div>\\n

Cold-drawn seamless tubes offer incredibly tight tolerances on the Outside Diameter (OD) and Wall Thickness (WT), making them essential for proper insertion and expansion into heat exchanger tube sheets.<\\\/p>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n

Primary Seamless Tubular Products<\\\/h2>\\n \\n
\\n\\n
\\n
\\n
\\u2668\\ufe0f<\\\/div>\\n

Heat Exchanger & Condenser Tubes<\\\/h3>\\n <\\\/div>\\n

Manufactured to strict OD and WT specifications (e.g., ASTM B163). Engineered for efficient thermal transfer while surviving aggressive cooling media like seawater or sulfuric acid.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83c\\udf9b\\ufe0f<\\\/div>\\n

Instrumentation Tubing<\\\/h3>\\n <\\\/div>\\n

Small-diameter, high-precision tubing (available in straight lengths or coils). Utilized for hydraulic control lines, pressure gauges, and chemical injection umbilicals in offshore platforms.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udee2\\ufe0f<\\\/div>\\n

Heavy-Wall Process Piping<\\\/h3>\\n <\\\/div>\\n

Large Nominal Pipe Size (NPS) seamless pipes in heavy schedules (Sch 80, Sch 160, XXH). Designed for the main arteries of chemical plants handling high-temperature, high-pressure corrosive fluids.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udd73\\ufe0f<\\\/div>\\n

OCTG \\\/ Downhole Tubulars<\\\/h3>\\n <\\\/div>\\n

Oil Country Tubular Goods (OCTG) utilized deep underground. Formed from high-strength superalloys (like Inconel 718) to resist sour gas (H2S), extreme bottom-hole pressure, and chloride stress cracking.<\\\/p>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n

Standard Specifications & Dimensions<\\\/div>\\n
\\n \\n \\n \\n \\n \\n \\n \\n \\n \\n
Specification Category<\\\/th>\\n Details & Standards<\\\/th>\\n <\\\/tr>\\n <\\\/thead>\\n
Standard Specifications<\\\/strong><\\\/td>\\n ASTM B163 (Condenser\\\/Heat Exchanger Tube), ASTM B165 (Monel Seamless), ASTM B167 \\\/ B444 (Inconel Seamless), ASTM B622 (Hastelloy Seamless)<\\\/td>\\n <\\\/tr>\\n
Pipe Size Range (NPS)<\\\/strong><\\\/td>\\n 1\\\/8\\\" NB to 24\\\" NB (Schedules: 10S, 40S, 80S, 160, XXH)<\\\/td>\\n <\\\/tr>\\n
Tube Size Range (OD)<\\\/strong><\\\/td>\\n 1\\\/16\\\" OD to 8\\\" OD (Wall Thickness: 0.010\\\" to 0.500\\\"+)<\\\/td>\\n <\\\/tr>\\n
Delivery Conditions<\\\/strong><\\\/td>\\n Annealed & Pickled, Bright Annealed, Cold Drawn, Extruded<\\\/td>\\n <\\\/tr>\\n
Non-Destructive Testing (NDT)<\\\/strong><\\\/td>\\n 100% Hydrostatic Testing, Eddy Current Testing (ECT), Ultrasonic Testing (UT)<\\\/td>\\n <\\\/tr>\\n <\\\/tbody>\\n <\\\/table>\\n <\\\/div>\\n\\n
\\n

Need Seamless Reliability?<\\\/h3>\\n

Specify whether you need Pipe (NPS & Schedule) or Tube (OD & Wall Thickness), along with your required alloy grade (e.g., seamless Hastelloy C276 tube). We provide full material traceability and custom cut-to-length services.<\\\/p>\\n Get a Seamless Pipe\\\/Tube Quote<\\\/a>\\n <\\\/div>\\n\\n<\\\/div>\",\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"2260e2c\"}]},\"elements\":[],\"widgetType\":\"html\"}],\"isInner\":false}]"],"_elementor_page_settings":["a:0:{}"],"_elementor_controls_usage":["a:2:{s:4:\"html\";a:3:{s:5:\"count\";i:1;s:15:\"control_percent\";i:0;s:8:\"controls\";a:2:{s:7:\"content\";a:1:{s:13:\"section_title\";a:1:{s:4:\"html\";i:1;}}s:8:\"advanced\";a:1:{s:26:\"display_conditions_section\";a:1:{s:22:\"display_condition_list\";i:1;}}}}s:9:\"container\";a:3:{s:5:\"count\";i:1;s:15:\"control_percent\";i:0;s:8:\"controls\";a:1:{s:8:\"advanced\";a:1:{s:26:\"display_conditions_section\";a:1:{s:22:\"display_condition_list\";i:1;}}}}}"],"rank_math_focus_keyword":["seamless pipe\/tube"],"rank_math_description":["Seamless nickel alloy pipe and tube in Inconel, Monel, Hastelloy and MP35N for high-pressure, corrosion-resistant chemical, offshore and aerospace use."],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:19:\"seamless pipe|\/tube\";}"],"site-content-style":["unboxed"],"site-sidebar-style":["unboxed"],"astra-migrate-meta-layouts":["set"],"theme-transparent-header-meta":["default"],"_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:\"1779372270\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_uag_css_file_name":["uag-css-3189.css"],"_elementor_page_assets":["a:1:{s:7:\"scripts\";a:1:{i:0;s:18:\"elementor-frontend\";}}"],"_elementor_css":["a:6:{s:4:\"time\";i:1779908990;s:5:\"fonts\";a:0:{}s:5:\"icons\";a:0:{}s:20:\"dynamic_elements_ids\";a:0:{}s:6:\"status\";s:4:\"file\";i:0;s:0:\"\";}"],"_elementor_element_cache":["{\"timeout\":1779998990,\"value\":{\"content\":\"

\\n\\t\\t\\t\\t\\t
\\n\\t\\t\\t\\t
\\n\\t\\t\\t\\t
\\n\\t\\t\\t\\t\\t\\n\\n
\\n\\n
\\n Home<\\\/a> \\n \\\/<\\\/span> \\n Product Forms<\\\/a>\\n \\\/<\\\/span> \\n Pipe & Tube<\\\/a>\\n \\\/<\\\/span> \\n Seamless\\n <\\\/div>\\n\\n
\\n

Seamless Nickel Alloy Pipe & Tube<\\\/h1>\\n \\n

\\n When absolute structural integrity and maximum pressure containment are non-negotiable, seamless tubulars are the only choice. Extruded and pierced from solid nickel alloy billets, 28Nickel's seamless pipes and tubes eliminate the vulnerabilities associated with weld seams. They are engineered to deliver unmatched reliability in severe chemical reactors, deep-water oil & gas extraction, and critical aerospace hydraulic systems.\\n <\\\/p>\\n <\\\/div>\\n\\n

Available Alloy Grades for Seamless Pipe & Tube<\\\/h2>\\n

\\n The aggressive nature of high-temperature corrosive fluids demands a homogenous material structure. We supply seamless tubular products in the world's highest-performing superalloys, ensuring uniform corrosion resistance across the entire length of the pipe.\\n <\\\/p>\\n \\n

\\n

Select a Grade to View Material Specs:<\\\/h3>\\n
\\n Inconel\\u00ae 625 (Excellent Pitting Resistance)<\\\/a>\\n Inconel\\u00ae 718 (High Strength Downhole\\\/OCTG)<\\\/a>\\n \\n Monel\\u00ae 400 (HF Acid & Marine Piping)<\\\/a>\\n Monel\\u00ae K-500 (High Strength Pump Tubing)<\\\/a>\\n \\n Hastelloy\\u00ae C-276 (Severe Chemical Transport)<\\\/a>\\n MP35N\\u00ae (Medical & Aerospace Tubing)<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n

Engineering Advantages of Seamless Construction<\\\/h2>\\n

\\n Unlike welded alternatives, seamless pipes and tubes possess a continuous, uniform grain structure, offering distinct advantages in critical applications.\\n <\\\/p>\\n \\n

\\n \\n
\\n
\\n
\\ud83d\\udee1\\ufe0f<\\\/div>\\n

Maximum Pressure Ratings<\\\/h3>\\n <\\\/div>\\n

Without a longitudinal weld seam (which is traditionally the weakest point under hoop stress), seamless pipes can withstand working pressures typically 20% higher than welded pipes of the same dimensions and alloy.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udd2c<\\\/div>\\n

Homogeneous Corrosion Resistance<\\\/h3>\\n <\\\/div>\\n

The absence of a weld Heat-Affected Zone (HAZ) means there are no localized metallurgical changes. This provides absolute uniformity in resisting localized pitting and intergranular corrosion.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83c\\udfaf<\\\/div>\\n

Precision Dimensional Tolerances<\\\/h3>\\n <\\\/div>\\n

Cold-drawn seamless tubes offer incredibly tight tolerances on the Outside Diameter (OD) and Wall Thickness (WT), making them essential for proper insertion and expansion into heat exchanger tube sheets.<\\\/p>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n

Primary Seamless Tubular Products<\\\/h2>\\n \\n
\\n\\n
\\n
\\n
\\u2668\\ufe0f<\\\/div>\\n

Heat Exchanger & Condenser Tubes<\\\/h3>\\n <\\\/div>\\n

Manufactured to strict OD and WT specifications (e.g., ASTM B163). Engineered for efficient thermal transfer while surviving aggressive cooling media like seawater or sulfuric acid.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83c\\udf9b\\ufe0f<\\\/div>\\n

Instrumentation Tubing<\\\/h3>\\n <\\\/div>\\n

Small-diameter, high-precision tubing (available in straight lengths or coils). Utilized for hydraulic control lines, pressure gauges, and chemical injection umbilicals in offshore platforms.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udee2\\ufe0f<\\\/div>\\n

Heavy-Wall Process Piping<\\\/h3>\\n <\\\/div>\\n

Large Nominal Pipe Size (NPS) seamless pipes in heavy schedules (Sch 80, Sch 160, XXH). Designed for the main arteries of chemical plants handling high-temperature, high-pressure corrosive fluids.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udd73\\ufe0f<\\\/div>\\n

OCTG \\\/ Downhole Tubulars<\\\/h3>\\n <\\\/div>\\n

Oil Country Tubular Goods (OCTG) utilized deep underground. Formed from high-strength superalloys (like Inconel 718) to resist sour gas (H2S), extreme bottom-hole pressure, and chloride stress cracking.<\\\/p>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n

Standard Specifications & Dimensions<\\\/div>\\n
\\n \\n \\n \\n \\n \\n \\n \\n \\n \\n
Specification Category<\\\/th>\\n Details & Standards<\\\/th>\\n <\\\/tr>\\n <\\\/thead>\\n
Standard Specifications<\\\/strong><\\\/td>\\n ASTM B163 (Condenser\\\/Heat Exchanger Tube), ASTM B165 (Monel Seamless), ASTM B167 \\\/ B444 (Inconel Seamless), ASTM B622 (Hastelloy Seamless)<\\\/td>\\n <\\\/tr>\\n
Pipe Size Range (NPS)<\\\/strong><\\\/td>\\n 1\\\/8\\\" NB to 24\\\" NB (Schedules: 10S, 40S, 80S, 160, XXH)<\\\/td>\\n <\\\/tr>\\n
Tube Size Range (OD)<\\\/strong><\\\/td>\\n 1\\\/16\\\" OD to 8\\\" OD (Wall Thickness: 0.010\\\" to 0.500\\\"+)<\\\/td>\\n <\\\/tr>\\n
Delivery Conditions<\\\/strong><\\\/td>\\n Annealed & Pickled, Bright Annealed, Cold Drawn, Extruded<\\\/td>\\n <\\\/tr>\\n
Non-Destructive Testing (NDT)<\\\/strong><\\\/td>\\n 100% Hydrostatic Testing, Eddy Current Testing (ECT), Ultrasonic Testing (UT)<\\\/td>\\n <\\\/tr>\\n <\\\/tbody>\\n <\\\/table>\\n <\\\/div>\\n\\n
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Need Seamless Reliability?<\\\/h3>\\n

Specify whether you need Pipe (NPS & Schedule) or Tube (OD & Wall Thickness), along with your required alloy grade (e.g., seamless Hastelloy C276 tube). We provide full material traceability and custom cut-to-length services.<\\\/p>\\n Get a Seamless Pipe\\\/Tube Quote<\\\/a>\\n <\\\/div>\\n\\n<\\\/div>\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\",\"scripts\":[],\"styles\":[]}}"]},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"nickel","author_link":"https:\/\/www.nickelcasting.com\/it\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"Home \/ Product Forms \/ Pipe & Tube \/ Seamless Seamless Nickel Alloy Pipe & Tube When absolute structural integrity and maximum pressure containment are non-negotiable, seamless tubulars are the only choice. Extruded and pierced from solid nickel alloy billets, 28Nickel’s seamless pipes and tubes eliminate the vulnerabilities associated with weld seams. They are engineered…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/pages\/3189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/comments?post=3189"}],"version-history":[{"count":5,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/pages\/3189\/revisions"}],"predecessor-version":[{"id":3197,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/pages\/3189\/revisions\/3197"}],"up":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/pages\/3181"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/media?parent=3189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}