{"id":2258,"date":"2026-02-26T10:02:35","date_gmt":"2026-02-26T10:02:35","guid":{"rendered":"https:\/\/nirotec.de\/elbows\/"},"modified":"2026-10-23T16:40:54","modified_gmt":"2026-10-23T16:40:54","slug":"elbows","status":"publish","type":"page","link":"https:\/\/nirotec.de\/en\/products\/elbows\/","title":{"rendered":"Elbows"},"content":{"rendered":"<div class=\"et_pb_section_0 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-hero nrt-bg-divi preset--module--divi-section--default\">\n<div class=\"et_pb_row_0 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_0 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<h1>Seamless elbows from the manufacturer \u2013 Type A &amp; Type B to EN 10253-2<\/h1>\n<p class=\"nrt-lead\">Manufactured in Unna, Germany, to EN 10253-2\/-4 and ASME B16.9 \u2013 with inspection certificate 3.1 or 3.2.<\/p>\n<div class=\"nrt-kpis\">\n<div class=\"nrt-kpi\"><b>DN 600<\/b><span>Nominal size<br \/>up to 24\"<\/span><\/div>\n<div class=\"nrt-kpi\"><b>100 mm<\/b><span>Seamless wall thickness<br \/>up to approx.<\/span><\/div>\n<div class=\"nrt-kpi\"><b>15\u2013180\u00b0<\/b><span>Custom angles<br \/>on request<\/span><\/div>\n<div class=\"nrt-kpi\"><b>3.1 \/ 3.2<\/b><span>Inspection certificate<br \/>to EN 10204<\/span><\/div>\n<\/div>\n<div class=\"nrt-btns\"><a class=\"nrt-btn nrt-btn-y\" href=\"#anfrage\"><span>Send inquiry<\/span><\/a><a class=\"nrt-btn nrt-btn-o\" href=\"#typ\"><span>Type A or Type B?<\/span><\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_1 et_pb_section et_section_regular et_flex_section nrt-sp preset--module--divi-section--default\" id=\"typ\">\n<div class=\"et_pb_row_1 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_1 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<div class=\"nrt-g57 nrt-mb48\">\n<div>\n<h2>Type A or Type B \u2013 what is the difference?<\/h2>\n<p class=\"nrt-intro\"><strong>In short:<\/strong> Type B has an increased minimum wall thickness at the intrados \u2013 the t<sub>int<\/sub> dimension. It is reliably maintained after forming and provides additional safety margins at high pressure and high temperature.<\/p>\n<p class=\"nrt-note\">Design and type are independent: Nirotec supplies Type A and Type B in designs 2, 3 and 5.<\/p>\n<\/div>\n<div class=\"nrt-figure\"><svg class=\"nrt-svg\" viewBox=\"0 0 520 300\" role=\"img\" aria-label=\"Section through an elbow: Type A with standard wall thickness, Type B with increased wall thickness at the intrados (tint)\"><path d=\"M218,280 A188,188 0 0 0 30,92 L30,188 A92,92 0 0 1 122,280 Z\" fill=\"#EEF2F7\"\/><path d=\"M230,280 A200,200 0 0 0 30,80 L30,92 A188,188 0 0 1 218,280 Z\" fill=\"#004288\"\/><path d=\"M122,280 A92,92 0 0 0 30,188 L30,200 A80,80 0 0 1 110,280 Z\" fill=\"#004288\"\/><text x=\"140\" y=\"40\" font-family=\"Rajdhani,sans-serif\" font-weight=\"700\" font-size=\"30\" fill=\"#004288\">Type A<\/text><line x1=\"98\" y1=\"212\" x2=\"148\" y2=\"162\" stroke=\"#010101\" stroke-width=\"1.5\"\/><text x=\"152\" y=\"160\" font-family=\"Rajdhani,sans-serif\" font-weight=\"700\" font-size=\"22\" fill=\"#010101\">t<tspan font-size=\"14\" dy=\"5\">int<\/tspan><\/text><path d=\"M478,280 A188,188 0 0 0 290,92 L290,174 A106,106 0 0 1 396,280 Z\" fill=\"#EEF2F7\"\/><path d=\"M490,280 A200,200 0 0 0 290,80 L290,92 A188,188 0 0 1 478,280 Z\" fill=\"#004288\"\/><path d=\"M396,280 A106,106 0 0 0 290,174 L290,200 A80,80 0 0 1 370,280 Z\" fill=\"#FCC800\"\/><text x=\"400\" y=\"40\" font-family=\"Rajdhani,sans-serif\" font-weight=\"700\" font-size=\"30\" fill=\"#004288\">Type B<\/text><line x1=\"363\" y1=\"207\" x2=\"408\" y2=\"162\" stroke=\"#010101\" stroke-width=\"1.5\"\/><text x=\"412\" y=\"160\" font-family=\"Rajdhani,sans-serif\" font-weight=\"700\" font-size=\"22\" fill=\"#010101\">t<tspan font-size=\"14\" dy=\"5\">int<\/tspan><\/text><\/svg><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_row_2 et_pb_row et_flex_row nrt-sp-row nrt-ab-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_2 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-abc preset--module--divi-column--default\">\n<div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap-c\">\n<h3>Type A<\/h3>\n<ul>\n<li><b>Wall thickness<\/b>standard wall thickness to the standard<\/li>\n<li><b>Verification<\/b>standard tests<\/li>\n<li><b>Application<\/b>general industrial piping<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_3 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-abc nrt-abc-b preset--module--divi-column--default\">\n<div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap-c\">\n<h3>Type B<\/h3>\n<ul>\n<li><b>Wall thickness<\/b>increased minimum wall thickness at the intrados (t<sub>int<\/sub>), thicker starting pipe, dedicated dies<\/li>\n<li><b>Verification<\/b>additionally documented t<sub>int<\/sub> verification<\/li>\n<li><b>Application<\/b>high pressure and high temperature, <a href=\"https:\/\/nirotec.de\/en\/applications\/energy-and-power-plant-systems\/\">power plants<\/a>, <a href=\"https:\/\/nirotec.de\/en\/nuclear-technology\/\">nuclear technology<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_2 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-tight preset--module--divi-section--default\">\n<div class=\"et_pb_row_3 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_4 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<h2>Elbows at a glance<\/h2>\n<dl class=\"nrt-sheet\">\n<div class=\"nrt-cell\">\n<dt>Standards<\/dt>\n<dd>EN 10253-2\/-4 (designs 2, 3, 5 \u00b7 Type A and B), ASME B16.9 (LR \/ SR), EEMUA 234 for nickel alloys<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Angles &amp; radii<\/dt>\n<dd>45\u00b0 and 90\u00b0, custom angles 15\u2013180\u00b0 \u00b7 LR 1.5 \u00d7 DN, SR 1.0 \u00d7 DN<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Dimensions<\/dt>\n<dd>up to DN 600 (24\"), seamless up to approx. 100 mm wall thickness<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Manufacturing<\/dt>\n<dd>hot and cold forming, presses up to 1,500 t, heat treatment, machining<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Materials<\/dt>\n<dd>carbon steel, low-temperature, creep-resistant incl. P91 \/ P92, stainless steel, duplex \/ super duplex, nickel alloys, CuNi<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Testing<\/dt>\n<dd>NDT (RT, UT, PT, MT), PMI, hardness, ferrite for duplex, t<sub>int<\/sub> verification for Type B<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Certificates<\/dt>\n<dd>EN 10204 3.1, 3.2 on request \u00b7 ISO 9001:2015, ISO 19443:2018, CRN (Canada)<\/dd>\n<\/div>\n<div class=\"nrt-cell\">\n<dt>Batch sizes<\/dt>\n<dd>small batch sizes, short lead times<\/dd>\n<\/div>\n<\/dl>\n<p class=\"nrt-mt18\"><a class=\"nrt-link\" href=\"https:\/\/nirotec.de\/wp-content\/uploads\/2026\/03\/PDB_Rohrbogen.pdf\" target=\"_blank\" rel=\"noopener\">Elbows product data sheet (PDF) \u2192<\/a><\/p>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_3 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-dark nrt-bg-divi preset--module--divi-section--default\">\n<div class=\"et_pb_row_4 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_5 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<h2>Designs &amp; radii<\/h2>\n<p class=\"nrt-sub\">To EN 10253-2\/-4 and ASME B16.9 \u2013 every design as Type A or Type B, in 45\u00b0, 90\u00b0 and custom angles.<\/p>\n<ol class=\"nrt-steps3\">\n<li class=\"nrt-step nrt-step-first\"><span class=\"nrt-n\">B2<\/span><br \/>\n<h3>Design 2<\/h3>\n<p>Long elbow, standard requirements<\/p>\n<\/li>\n<li class=\"nrt-step\"><span class=\"nrt-n\">B3<\/span><br \/>\n<h3>Design 3<\/h3>\n<p>Short elbow, increased requirements<\/p>\n<\/li>\n<li class=\"nrt-step\"><span class=\"nrt-n\">B5<\/span><br \/>\n<h3>Design 5<\/h3>\n<p>Long elbow, increased requirements<\/p>\n<\/li>\n<li class=\"nrt-step\"><span class=\"nrt-n\">LR<\/span><br \/>\n<h3>Long Radius<\/h3>\n<p>Bend radius 1.5 \u00d7 DN \u2013 the standard<\/p>\n<\/li>\n<li class=\"nrt-step\"><span class=\"nrt-n\">SR<\/span><br \/>\n<h3>Short Radius<\/h3>\n<p>Bend radius 1.0 \u00d7 DN \u2013 for tight spaces<\/p>\n<\/li>\n<\/ol>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_4 et_pb_section et_section_regular et_flex_section nrt-sp preset--module--divi-section--default\">\n<div class=\"et_pb_row_5 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_6 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_6 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<div class=\"nrt-g75\"><img class=\"nrt-cut\" src=\"https:\/\/nirotec.de\/wp-content\/uploads\/2026\/05\/Rohrbogen-Sammlung-.jpg\" alt=\"Seamless carbon steel elbows with protective caps, packed ready for shipment\" width=\"1920\" height=\"1080\" loading=\"lazy\" decoding=\"async\"><\/p>\n<div>\n<h2>Manufacturing &amp; special designs<\/h2>\n<p class=\"nrt-intro\">From seamless or welded pipes, hot or cold formed on presses up to 1,500 t \u2013 for uniform wall thickness, high roundness and dimensional accuracy.<\/p>\n<ul class=\"nrt-chips\">\n<li><i>Custom angles &amp; radii<\/i><\/li>\n<li><i>New dies from our own tool shop<\/i><\/li>\n<li><i>Extended ends (tangents)<\/i><\/li>\n<li><i>Heavy-wall beyond the standard<\/i><\/li>\n<li><i>Offshore &amp; nuclear projects<\/i><\/li>\n<\/ul>\n<p class=\"nrt-mt18\"><a class=\"nrt-link\" href=\"https:\/\/nirotec.de\/en\/products\/special-parts-and-drawing-parts\/\">Special and drawing parts \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_5 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-tight preset--module--divi-section--default\">\n<div class=\"et_pb_row_6 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_7 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_7 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<div class=\"nrt-g57\">\n<div>\n<h2>Materials<\/h2>\n<p class=\"nrt-intro\">All common material groups \u2013 matched to temperature, pressure and corrosion. Further materials on request.<\/p>\n<p class=\"nrt-mb28\"><a class=\"nrt-link\" href=\"https:\/\/nirotec.de\/en\/materials\/\">All materials at a glance \u2192<\/a><\/p>\n<p><img class=\"nrt-cut nrt-cut-s\" src=\"https:\/\/nirotec.de\/wp-content\/uploads\/2026\/04\/many-types-metal-details-industrial-design-background-engineering-technology-concept.jpg\" alt=\"Stainless steel elbows and reducers\" width=\"2560\" height=\"1440\" loading=\"lazy\" decoding=\"async\"><\/div>\n<div class=\"nrt-tabs\"><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-0\" checked><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-1\"><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-2\"><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-3\"><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-4\"><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-5\"><input type=\"radio\" name=\"nrt-mat\" id=\"nrt-mat-6\"><\/p>\n<div class=\"nrt-tabbar\"><label for=\"nrt-mat-0\">Unalloyed \/ low-alloy<\/label><label for=\"nrt-mat-1\">Low-temperature<\/label><label for=\"nrt-mat-2\">Creep-resistant<\/label><label for=\"nrt-mat-3\">Austenitic<\/label><label for=\"nrt-mat-4\">Duplex<\/label><label for=\"nrt-mat-5\">Nickel<\/label><label for=\"nrt-mat-6\">CuNi &amp; special<\/label><\/div>\n<div class=\"nrt-pane nrt-pane-0\">\n<h3 class=\"nrt-vh\">Unalloyed and low-alloy steels<\/h3>\n<ul>\n<li>P235GH \/ 1.0345<\/li>\n<li>P265GH \/ 1.0425<\/li>\n<li>P355N \/ 1.0562 \u00b7 P355NH \/ 1.0565<\/li>\n<li>L360 \/ 1.0582 \/ API 5L X52<\/li>\n<li>L415 \/ 1.8972 \/ API 5L X60<\/li>\n<li>WPB \/ A234 WPB \/ Carbon Steel<\/li>\n<li>WPHY70 \/ A860 WPHY70<\/li>\n<\/ul>\n<\/div>\n<div class=\"nrt-pane nrt-pane-1\">\n<h3 class=\"nrt-vh\">Low-temperature steels<\/h3>\n<ul>\n<li>WPL3 \/ A420 WPL3<\/li>\n<li>WPL6 \/ A420 WPL6<\/li>\n<li>LF2 \/ A350 LF2<\/li>\n<li>P355NL2<\/li>\n<li>P460NL2<\/li>\n<li>10Ni14<\/li>\n<li>12Ni14 \/ 1.5637<\/li>\n<\/ul>\n<\/div>\n<div class=\"nrt-pane nrt-pane-2\">\n<h3 class=\"nrt-vh\">Creep-resistant steels<\/h3>\n<ul>\n<li>16Mo3 \/ 1.5415<\/li>\n<li>WP11 \/ P11 \/ 1.7335 \/ 13CrMo4-5<\/li>\n<li>WP22 \/ P22 \/ 1.7380 \/ 10CrMo9-10<\/li>\n<li>WP91 \/ P91 \/ 1.4903 \/ X10CrMoVNb9-1<\/li>\n<li>WP92 \/ P92 \/ 1.4901 \/ X10CrWMoVNb9-2<\/li>\n<li>X20 \/ 1.4922 \/ X20CrMoV11-1<\/li>\n<li>WB36 \/ 1.6368 \/ 15NiCuMoNb5<\/li>\n<\/ul>\n<\/div>\n<div class=\"nrt-pane nrt-pane-3\">\n<h3 class=\"nrt-vh\">Austenitic stainless steels and super-austenitic grades<\/h3>\n<ul>\n<li>304 \/ 1.4301 \/ X5CrNi18-10 \/ V2A<\/li>\n<li>304L \/ 1.4307 \/ X2CrNi18-9 \/ TP304L \/ WP304L<\/li>\n<li>316L \/ 1.4404 \/ X2CrNiMo17-12-2 \/ TP316L \/ WP316L \/ V4A<\/li>\n<li>316Ti \/ 1.4571 \/ X6CrNiMoTi17-12-2 \/ TP316Ti \/ WP316Ti<\/li>\n<li>321 \/ 1.4541 \/ X6CrNiTi18-10 \/ TP321 \/ WP321<\/li>\n<li>347H \/ 1.4961 \/ TP347H \/ WP347H<\/li>\n<li>310S \/ 1.4845 \/ X8CrNi25-21 \/ TP310S \/ WP310S<\/li>\n<li>254SMO \/ 1.4547 \/ X1CrNiMoCuN20-18-7 \/ UNS S31254<\/li>\n<li>Alloy 926 \/ 1.4529 \/ X1NiCrMoCuN25-20-7 \/ UNS N08926<\/li>\n<li>904L \/ 1.4539 \/ X1NiCrMoCu25-20-5 \/ UNS N08904 \/ 2RK65<\/li>\n<\/ul>\n<\/div>\n<div class=\"nrt-pane nrt-pane-4\">\n<h3 class=\"nrt-vh\">Duplex and super duplex<\/h3>\n<ul>\n<li>Duplex \/ 1.4462 \/ X2CrNiMoN22-5-3 \/ UNS S31803 \/ F51<\/li>\n<li>Super Duplex \/ 1.4410 \/ X2CrNiMoN25-7-4 \/ UNS S32750 \/ F53<\/li>\n<li>Super Duplex \/ 1.4501 \/ X2CrNiMoCuWN25-7-4 \/ UNS S32760 \/ F55<\/li>\n<\/ul>\n<\/div>\n<div class=\"nrt-pane nrt-pane-5\">\n<h3 class=\"nrt-vh\">Nickel alloys<\/h3>\n<ul>\n<li>Monel 400 \/ 2.4360 \/ UNS N04400<\/li>\n<li>Alloy 625 \/ 2.4856 \/ UNS N06625 \/ Inconel 625<\/li>\n<li>Alloy 825 \/ 2.4858 \/ UNS N08825 \/ Incoloy 825<\/li>\n<li>Alloy C-276 \/ 2.4819 \/ UNS N10276 \/ Hastelloy C-276<\/li>\n<li>Alloy 718 \/ 2.4668 \/ UNS N07718<\/li>\n<li>Alloy 800H \/ 1.4876H \/ UNS N08810<\/li>\n<li>Alloy C-22 \/ 2.4602 \/ UNS N06022 \/ Hastelloy C-22<\/li>\n<\/ul>\n<\/div>\n<div class=\"nrt-pane nrt-pane-6\">\n<h3 class=\"nrt-vh\">Copper-nickel and special materials<\/h3>\n<ul>\n<li>CuNi10Fe1Mn \/ 2.0872 \/ C70600 \/ CuNi 90\/10<\/li>\n<li>CuNi 70\/30 \/ 2.0882 \/ C71500<\/li>\n<li>Zirconium 702 \/ UNS R60702<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_6 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-tight preset--module--divi-section--default\">\n<div class=\"et_pb_row_7 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_8 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_8 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<div class=\"nrt-g57\">\n<div>\n<h2>Quality testing &amp; documentation<\/h2>\n<p class=\"nrt-intro\">Quality management system to DIN EN ISO 9001 and ISO 19443. Every test is documented with an inspection certificate to EN 10204 (3.1 \/ 3.2).<\/p>\n<p class=\"nrt-mt18\"><a class=\"nrt-link\" href=\"https:\/\/nirotec.de\/en\/certificates-and-approvals\/\">Certificates and approvals \u2192<\/a><\/p>\n<\/div>\n<div>\n<ul class=\"nrt-chips\">\n<li><i>Visual inspection<\/i><\/li>\n<li><i>Dimensional and wall thickness measurement<\/i><\/li>\n<li><i>UT \u00b7 RT \u00b7 PT \u00b7 MT<\/i><\/li>\n<li><i>t<sub>int<\/sub> verification (Type B)<\/i><\/li>\n<li><i>PMI<\/i><\/li>\n<li><i>Hardness testing<\/i><\/li>\n<li><i>Ferrite measurement (duplex)<\/i><\/li>\n<li><i>Third-party inspection: T\u00dcV, BV, customer<\/i><\/li>\n<li><i>ITP with hold &amp; witness points<\/i><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_7 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-sectors preset--module--divi-section--default\">\n<div class=\"et_pb_row_8 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_9 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_9 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap nrt-center\">\n<h2>In use worldwide<\/h2>\n<p class=\"nrt-sub\">For pressure, temperature and corrosive environments with the highest safety requirements.<\/p>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_row_9 et_pb_row et_flex_row nrt-sp-row nrt-sec-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_10 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sec preset--module--divi-column--default\">\n<div class=\"et_pb_text_10 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><a class=\"nrt-sec-link\" href=\"https:\/\/nirotec.de\/en\/applications\/energy-and-power-plant-systems\/\"><span class=\"nrt-sec-t\">Energy &amp; Power Plants<\/span><span class=\"nrt-more\">Learn more \u2192<\/span><\/a><\/p>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_11 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sec preset--module--divi-column--default\">\n<div class=\"et_pb_text_11 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><a class=\"nrt-sec-link\" href=\"https:\/\/nirotec.de\/en\/nuclear-technology\/\"><span class=\"nrt-sec-t\">Nuclear Technology<\/span><span class=\"nrt-more\">Learn more \u2192<\/span><\/a><\/p>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_12 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sec preset--module--divi-column--default\">\n<div class=\"et_pb_text_12 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><a class=\"nrt-sec-link\" href=\"https:\/\/nirotec.de\/en\/applications\/hydrogen-and-energy-infrastructure\/\"><span class=\"nrt-sec-t\">Hydrogen &amp; Energy Infrastructure<\/span><span class=\"nrt-more\">Learn more \u2192<\/span><\/a><\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_row_10 et_pb_row et_flex_row nrt-sp-row nrt-sec-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_13 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sec preset--module--divi-column--default\">\n<div class=\"et_pb_text_13 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><a class=\"nrt-sec-link\" href=\"https:\/\/nirotec.de\/en\/applications\/chemical-and-process-industry\/\"><span class=\"nrt-sec-t\">Chemical &amp; Process Industries<\/span><span class=\"nrt-more\">Learn more \u2192<\/span><\/a><\/p>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_14 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sec preset--module--divi-column--default\">\n<div class=\"et_pb_text_14 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><a class=\"nrt-sec-link\" href=\"https:\/\/nirotec.de\/en\/applications\/refineries-and-offshore-facilities\/\"><span class=\"nrt-sec-t\">Refineries &amp; Offshore Facilities<\/span><span class=\"nrt-more\">Learn more \u2192<\/span><\/a><\/p>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_15 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sec preset--module--divi-column--default\">\n<div class=\"et_pb_text_15 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><a class=\"nrt-sec-link\" href=\"https:\/\/nirotec.de\/en\/applications\/apparatus-and-mechanical-engineering\/\"><span class=\"nrt-sec-t\">Apparatus &amp; Mechanical Engineering<\/span><span class=\"nrt-more\">Learn more \u2192<\/span><\/a><\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_8 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-afterdark preset--module--divi-section--default\">\n<div class=\"et_pb_row_11 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_16 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_16 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<h2>Frequently asked questions about elbows<\/h2>\n<div class=\"nrt-faq\">\n<details open>\n<summary>\n<h3>What is the difference between Type A and Type B to EN 10253-2?<\/h3>\n<\/summary>\n<p>Type A is the design with standard wall thickness. Type B has an increased minimum wall thickness at the intrados (t<sub>int<\/sub> dimension), which is reliably maintained after forming. This provides higher safety margins \u2013 which is why Type B is mainly used in high-pressure and high-temperature piping, in power plants and in nuclear technology.<\/p>\n<\/details>\n<details>\n<summary>\n<h3>Which designs and radii are available?<\/h3>\n<\/summary>\n<p>To EN 10253-2\/-4 designs 2, 3 and 5, to ASME B16.9 Long Radius (LR, bend radius 1.5 \u00d7 DN) and Short Radius (SR, 1.0 \u00d7 DN). Project-specific radii and custom angles from 15\u00b0 to 180\u00b0 are manufactured on request.<\/p>\n<\/details>\n<details>\n<summary>\n<h3>Up to what size does Nirotec manufacture seamless elbows?<\/h3>\n<\/summary>\n<p>Up to DN 600 (24\") and seamless up to approx. 100 mm wall thickness. Heavy-wall designs beyond the standard are possible on request.<\/p>\n<\/details>\n<details>\n<summary>\n<h3>Which inspection certificates do I receive?<\/h3>\n<\/summary>\n<p>The standard is the inspection certificate 3.1 to EN 10204 with traceability to the heat. On request you receive 3.2 with inspection by T\u00dcV, SGS, DNV, Lloyd\u2019s Register, Bureau Veritas or your customer representatives \u2013 for projects and in nuclear technology with an agreed ITP.<\/p>\n<\/details>\n<details>\n<summary>\n<h3>Does Nirotec also supply small quantities and custom angles?<\/h3>\n<\/summary>\n<p>Yes. We also manufacture small batch sizes with short lead times, custom angles from 15\u00b0 to 180\u00b0 and extended ends (tangents) to drawing.<\/p>\n<\/details>\n<details>\n<summary>\n<h3>What information do you need for a quotation?<\/h3>\n<\/summary>\n<p>Standard \/ design (e.g. ASME B16.9 LR or EN 10253 design 3), material and any heat requirements, dimensions (DN \/ NPS, wall thickness or schedule), quantity and requested delivery date as well as the required documentation (3.1 \/ 3.2, NDT, third-party inspection). Alternatively, simply send us your drawing or bill of materials.<\/p>\n<\/details>\n<\/div>\n<p class=\"nrt-stand\">Last updated: October 2026<\/p>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between Type A and Type B to EN 10253-2?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Type A is the design with standard wall thickness. Type B has an increased minimum wall thickness at the intrados (t_int dimension), which is reliably maintained after forming. This provides higher safety margins \u2013 which is why Type B is mainly used in high-pressure and high-temperature piping, in power plants and in nuclear technology.\"}}, {\"@type\": \"Question\", \"name\": \"Which designs and radii are available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"To EN 10253-2\/-4 designs 2, 3 and 5, to ASME B16.9 Long Radius (LR, bend radius 1.5 \u00d7 DN) and Short Radius (SR, 1.0 \u00d7 DN). Project-specific radii and custom angles from 15\u00b0 to 180\u00b0 are manufactured on request.\"}}, {\"@type\": \"Question\", \"name\": \"Up to what size does Nirotec manufacture seamless elbows?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Up to DN 600 (24\u2033) and seamless up to approx. 100 mm wall thickness. Heavy-wall designs beyond the standard are possible on request.\"}}, {\"@type\": \"Question\", \"name\": \"Which inspection certificates do I receive?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The standard is the inspection certificate 3.1 to EN 10204 with traceability to the heat. On request you receive 3.2 with inspection by T\u00dcV, SGS, DNV, Lloyd\u2019s Register, Bureau Veritas or your customer representatives \u2013 for projects and in nuclear technology with an agreed ITP.\"}}, {\"@type\": \"Question\", \"name\": \"Does Nirotec also supply small quantities and custom angles?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. We also manufacture small batch sizes with short lead times, custom angles from 15\u00b0 to 180\u00b0 and extended ends (tangents) to drawing.\"}}, {\"@type\": \"Question\", \"name\": \"What information do you need for a quotation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Standard \/ design (e.g. ASME B16.9 LR or EN 10253 design 3), material and any heat requirements, dimensions (DN \/ NPS, wall thickness or schedule), quantity and requested delivery date as well as the required documentation (3.1 \/ 3.2, NDT, third-party inspection). Alternatively, simply send us your drawing or bill of materials.\"}}]}<\/script><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Service\", \"name\": \"Seamless elbows\", \"serviceType\": \"Manufacture of seamless elbows to EN 10253-2\/-4 and ASME B16.9\", \"description\": \"Seamless elbows Type A and Type B to EN 10253-2\/-4 (designs 2, 3, 5) and ASME B16.9 (LR\/SR), 45\u00b0 and 90\u00b0 as well as custom angles 15\u2013180\u00b0, up to DN 600 (24 inch) and seamless up to approx. 100 mm wall thickness, inspection certificate to EN 10204 3.1 \/ 3.2.\", \"url\": \"https:\/\/nirotec.de\/en\/products\/elbows\/\", \"areaServed\": \"Worldwide\", \"provider\": {\"@type\": \"Organization\", \"name\": \"Nirotec GmbH & Co. KG\", \"url\": \"https:\/\/nirotec.de\/en\/\", \"telephone\": \"+49 2303 985-0\", \"email\": \"info@nirotec.de\", \"address\": {\"@type\": \"PostalAddress\", \"streetAddress\": \"Otto-Hahn-Str. 4\", \"postalCode\": \"59423\", \"addressLocality\": \"Unna\", \"addressCountry\": \"DE\"}}}<\/script><\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_9 et_pb_section et_section_regular et_flex_section nrt-sp nrt-sp-form nrt-bg-divi preset--module--divi-section--default\" id=\"anfrage\">\n<div class=\"et_pb_row_12 et_pb_row et_flex_row nrt-sp-row preset--module--divi-row--default\">\n<div class=\"et_pb_column_17 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone nrt-sp-col preset--module--divi-column--default\">\n<div class=\"et_pb_text_17 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module nrt-sp-text preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div class=\"nrt-wrap\">\n<div class=\"nrt-g57\">\n<div>\n<h2>Request elbows<\/h2>\n<p class=\"nrt-intro nrt-mb24\">Standard, material, dimensions and quantity are enough \u2013 or simply send us your drawing or bill of materials. Special dimensions and special materials too.<\/p>\n<div class=\"nrt-contact\"><b>Contact us directly<\/b><br \/><a href=\"tel:+4923039850\">+49 (0) 2303\/985 - 0<\/a> \u00b7 <a href=\"mailto:info@nirotec.de\">info@nirotec.de<\/a><br \/>Otto-Hahn-Str. 4, 59423 Unna, Germany<\/div>\n<\/div>\n<div class=\"nrt-formbox\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f2992-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"2992\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/pages\/2258#wpcf7-f2992-o1\" method=\"post\" class=\"wpcf7-form init wpcf7-acceptance-as-validation\" aria-label=\"Contact form\" enctype=\"multipart\/form-data\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"2992\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f2992-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"nrt-form\">\n\t<div class=\"nrt-row\">\n\t\t<p><label>Name *<span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span><\/label>\n\t\t<\/p>\n\t\t<p><label>Company *<span class=\"wpcf7-form-control-wrap\" data-name=\"your-company\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"organization\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-company\" \/><\/span><\/label>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"nrt-row\">\n\t\t<p><label>E-mail *<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span><\/label>\n\t\t<\/p>\n\t\t<p><label>Phone<span class=\"wpcf7-form-control-wrap\" data-name=\"your-phone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" autocomplete=\"tel\" aria-invalid=\"false\" value=\"\" type=\"tel\" name=\"your-phone\" \/><\/span><\/label>\n\t\t<\/p>\n\t<\/div>\n\t<p><label>Your inquiry *<span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"e.g. standard, material, dimensions, quantity \u2013 or simply attach your drawing\" name=\"your-message\"><\/textarea><\/span><\/label>\n\t<\/p>\n\t<p><label>Drawing \/ parts list (optional)<span class=\"wpcf7-form-control-wrap\" data-name=\"your-file\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-file\" accept=\".pdf,.dwg,.dxf,.step,.stp,.igs,.iges,.xlsx,.xls,.csv,.jpg,.jpeg,.png\" aria-invalid=\"false\" type=\"file\" name=\"your-file\" \/><\/span><span class=\"nrt-hint\">PDF, DWG, DXF, STEP, IGES, Excel or image \u2013 max. 10 MB<\/span><\/label>\n\t<\/p>\n\t<p class=\"nrt-accept\"><span class=\"wpcf7-form-control-wrap\" data-name=\"nrt-privacy\"><span class=\"wpcf7-form-control wpcf7-acceptance\"><span class=\"wpcf7-list-item\"><label><input type=\"checkbox\" name=\"nrt-privacy\" value=\"1\" aria-invalid=\"false\" \/><span class=\"wpcf7-list-item-label\">I have read the <a href=\"\/en\/privacy-policy\/\">privacy notice<\/a>. My details will be used to process my inquiry. *<\/span><\/label><\/span><\/span><\/span>\n\t<\/p>\n\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send inquiry\" \/>\n\t<\/p>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":2265,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2258","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/pages\/2258","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/comments?post=2258"}],"version-history":[{"count":8,"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/pages\/2258\/revisions"}],"predecessor-version":[{"id":3319,"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/pages\/2258\/revisions\/3319"}],"up":[{"embeddable":true,"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/pages\/2265"}],"wp:attachment":[{"href":"https:\/\/nirotec.de\/en\/wp-json\/wp\/v2\/media?parent=2258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}