{"id":2645,"date":"2025-11-19T09:00:13","date_gmt":"2025-11-19T06:00:13","guid":{"rendered":"https:\/\/gold-bar.co.il\/new\/?page_id=2645"},"modified":"2025-11-19T10:00:59","modified_gmt":"2025-11-19T07:00:59","slug":"%d7%aa%d7%99%d7%9b%d7%a0%d7%95%d7%9f-%d7%a6%d7%99%d7%a0%d7%95%d7%a8%d7%95%d7%aa-%d7%95%d7%a9%d7%a4%d7%95%d7%a4%d7%a8%d7%95%d7%aa","status":"publish","type":"page","link":"https:\/\/gold-bar.co.il\/new\/en\/%d7%aa%d7%99%d7%9b%d7%a0%d7%95%d7%9f-%d7%a6%d7%99%d7%a0%d7%95%d7%a8%d7%95%d7%aa-%d7%95%d7%a9%d7%a4%d7%95%d7%a4%d7%a8%d7%95%d7%aa\/","title":{"rendered":"Pipe Design"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2645\" class=\"elementor elementor-2645\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4d71846 e-flex e-con-boxed e-con e-parent\" data-id=\"4d71846\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2b4b1f7 e-con-full e-flex e-con e-child\" data-id=\"2b4b1f7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1f8ecd8 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"1f8ecd8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Designing Tube and Pipe Wall Thickness for Heat Exchangers<\/h1>\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<div class=\"elementor-element elementor-element-ed72dc1 e-flex e-con-boxed e-con e-parent\" data-id=\"ed72dc1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-128e82c e-con-full e-flex e-con e-child\" data-id=\"128e82c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2ac0311 e-con-full e-flex e-con e-child\" data-id=\"2ac0311\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5b16cbd elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"5b16cbd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: left;\" data-start=\"304\" data-end=\"609\"><span style=\"font-size: 14pt;\">Selecting pipes and tubes according to wall thickness is one of the most critical engineering steps in the design of pressure systems, heat exchangers, piping networks, and process equipment. Because the wall thickness determines a tube\u2019s resistance to pressure, temperature, corrosion, and mechanical loads, choosing it incorrectly can lead to accelerated wear, premature failure, and even significant safety hazards. The selection process relies on a combination of mandatory standards, detailed strength calculations, an understanding of real operating conditions, and proper alignment of materials with the working medium and environment. In this guide, we review the core design principles, the factors that influence wall thickness, the requirements of international standards, material considerations, common mistakes, and the correct methodologies for achieving a precise, safe, and cost-effective selection.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1631c65 e-con-full e-flex e-con e-child\" data-id=\"1631c65\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ee374aa elementor-widget__width-initial elementor-widget elementor-widget-html\" data-id=\"ee374aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CJMcC6HlAJ0?si=Ay7oaoeGoDILs_qV&amp;start=32\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-1459096 e-flex e-con-boxed e-con e-parent\" data-id=\"1459096\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-b35e883 e-con-full e-flex e-con e-child\" data-id=\"b35e883\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-22ff2a5 elementor-widget elementor-widget-heading\" data-id=\"22ff2a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Guide to Selecting Pipes and Tubes by Wall Thickness<\/h2>\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<div class=\"elementor-element elementor-element-436369a e-flex e-con-boxed e-con e-parent\" data-id=\"436369a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-58e6de2 e-con-full e-flex e-con e-child\" data-id=\"58e6de2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c02dfd2 e-con-full e-flex e-con e-child\" data-id=\"c02dfd2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2f121d6 e-con-full e-flex e-con e-child\" data-id=\"2f121d6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bfc7a8a elementor-widget elementor-widget-text-editor\" data-id=\"bfc7a8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"81\" data-end=\"555\"><span style=\"color: #000000;\">Selecting the wall thickness of pipes and tubes is a central engineering decision that affects safety, service life, pressure resistance, weight, operating costs, and manufacturability. In process industries\u2014such as chemicals, pharmaceuticals, food and beverage, energy, fertilizers, and thermal systems\u2014choosing the correct wall thickness is essential for the proper design of heat exchangers, piping systems, pressure vessels, structural components, and related equipment.<\/span><\/p><p data-start=\"557\" data-end=\"743\"><span style=\"color: #000000;\">This guide summarizes, in a structured and clear manner, the key principles, considerations, and relevant standards for selecting a pipe or tube according to the required wall thickness.<\/span><\/p><hr data-start=\"745\" data-end=\"748\" \/><h2 data-start=\"750\" data-end=\"801\"><span style=\"color: #000000;\">1. What Is Wall Thickness and What Does It Mean?<\/span><\/h2><p data-start=\"803\" data-end=\"925\"><span style=\"color: #000000;\">Wall thickness is the distance between the outer and inner diameter of a pipe. It is a critical parameter that determines:<\/span><\/p><ul data-start=\"927\" data-end=\"1204\"><li data-start=\"927\" data-end=\"974\"><p data-start=\"929\" data-end=\"974\"><span style=\"color: #000000;\">Resistance to internal or external pressure<\/span><\/p><\/li><li data-start=\"975\" data-end=\"1046\"><p data-start=\"977\" data-end=\"1046\"><span style=\"color: #000000;\">Mechanical durability against loads, vibration, and cyclic stresses<\/span><\/p><\/li><li data-start=\"1047\" data-end=\"1081\"><p data-start=\"1049\" data-end=\"1081\"><span style=\"color: #000000;\">Long-term corrosion resistance<\/span><\/p><\/li><li data-start=\"1082\" data-end=\"1142\"><p data-start=\"1084\" data-end=\"1142\"><span style=\"color: #000000;\">Heat-transfer efficiency (especially in heat exchangers)<\/span><\/p><\/li><li data-start=\"1143\" data-end=\"1168\"><p data-start=\"1145\" data-end=\"1168\"><span style=\"color: #000000;\">Overall system weight<\/span><\/p><\/li><li data-start=\"1169\" data-end=\"1204\"><p data-start=\"1171\" data-end=\"1204\"><span style=\"color: #000000;\">Material and manufacturing cost<\/span><\/p><\/li><\/ul><p data-start=\"1206\" data-end=\"1385\"><span style=\"color: #000000;\">When designing tubes for heat exchangers, wall thickness must also take into account flow-induced vibration, erosion potential, and localized stresses caused by thermal expansion.<\/span><\/p><hr data-start=\"1387\" data-end=\"1390\" \/><h2 data-start=\"1392\" data-end=\"1442\"><span style=\"color: #000000;\">2. Standards Governing Wall Thickness Selection<\/span><\/h2><p data-start=\"1444\" data-end=\"1540\"><span style=\"color: #000000;\">Engineers typically rely on international standards that define strength requirements precisely:<\/span><\/p><ul data-start=\"1542\" data-end=\"1873\"><li data-start=\"1542\" data-end=\"1603\"><p data-start=\"1544\" data-end=\"1603\"><span style=\"color: #000000;\"><strong data-start=\"1544\" data-end=\"1572\">ASME Section VIII Div. 1<\/strong> \u2013 Design of pressure vessels<\/span><\/p><\/li><li data-start=\"1604\" data-end=\"1660\"><p data-start=\"1606\" data-end=\"1660\"><span style=\"color: #000000;\"><strong data-start=\"1606\" data-end=\"1620\">ASME B31.3<\/strong> \u2013 Design of industrial process piping<\/span><\/p><\/li><li data-start=\"1661\" data-end=\"1741\"><p data-start=\"1663\" data-end=\"1741\"><span style=\"color: #000000;\"><strong data-start=\"1663\" data-end=\"1686\">EN 13480 \/ EN 13445<\/strong> \u2013 European standards for piping and pressure vessels<\/span><\/p><\/li><li data-start=\"1742\" data-end=\"1801\"><p data-start=\"1744\" data-end=\"1801\"><span style=\"color: #000000;\"><strong data-start=\"1744\" data-end=\"1752\">TEMA<\/strong> \u2013 Standards for shell-and-tube heat exchangers<\/span><\/p><\/li><li data-start=\"1802\" data-end=\"1873\"><p data-start=\"1804\" data-end=\"1873\"><span style=\"color: #000000;\"><strong data-start=\"1804\" data-end=\"1825\">API 660 \/ API 661<\/strong> \u2013 Heat exchangers in the oil and gas industry<\/span><\/p><\/li><\/ul><p data-start=\"1875\" data-end=\"2045\"><span style=\"color: #000000;\">These standards specify formulas for calculating the minimum allowable wall thickness while considering design pressure, temperature, welds, stresses, and safety margins.<\/span><\/p><hr data-start=\"2047\" data-end=\"2050\" \/><h2 data-start=\"2052\" data-end=\"2106\"><span style=\"color: #000000;\">3. Calculating Wall Thickness According to Pressure<\/span><\/h2><p data-start=\"2108\" data-end=\"2165\"><span style=\"color: #000000;\">The main design parameter is the maximum design pressure.<\/span><\/p><p data-start=\"2167\" data-end=\"2198\"><span style=\"color: #000000;\">The basic calculation includes:<\/span><\/p><ul data-start=\"2200\" data-end=\"2400\"><li data-start=\"2200\" data-end=\"2223\"><p data-start=\"2202\" data-end=\"2223\"><span style=\"color: #000000;\">Design pressure (P)<\/span><\/p><\/li><li data-start=\"2224\" data-end=\"2261\"><p data-start=\"2226\" data-end=\"2261\"><span style=\"color: #000000;\">Outer or inner diameter (Do \/ Di)<\/span><\/p><\/li><li data-start=\"2262\" data-end=\"2324\"><p data-start=\"2264\" data-end=\"2324\"><span style=\"color: #000000;\">Allowable stress (S) according to material and temperature<\/span><\/p><\/li><li data-start=\"2325\" data-end=\"2372\"><p data-start=\"2327\" data-end=\"2372\"><span style=\"color: #000000;\">Weld efficiency (E), if welding seams exist<\/span><\/p><\/li><li data-start=\"2373\" data-end=\"2400\"><p data-start=\"2375\" data-end=\"2400\"><span style=\"color: #000000;\">Corrosion allowance (C)<\/span><\/p><\/li><\/ul><p data-start=\"2402\" data-end=\"2423\"><span style=\"color: #000000;\">Example ASME formula:<\/span><\/p><p data-start=\"65\" data-end=\"543\"><span class=\"katex-display\" style=\"color: #000000;\"><span class=\"katex\"><span class=\"katex-mathml\">t=P\u22c5D2(SE+P)+Ct = \\frac{P \\cdot D}{2(SE + P)} + C<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">t<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">2<span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">SE<\/span><span class=\"mbin\">+<\/span><span class=\"mord mathnormal\">P<\/span><span class=\"mclose\">)<\/span><span class=\"mord mathnormal\">P<\/span><span class=\"mbin\">\u22c5<\/span><span class=\"mord mathnormal\">D<\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">C<\/span><\/span><\/span><\/span><\/span><\/p><p data-start=\"2468\" data-end=\"2639\"><span style=\"color: #000000;\">This yields the <strong data-start=\"2484\" data-end=\"2517\">minimum permissible thickness<\/strong>.<\/span><br data-start=\"2518\" data-end=\"2521\" \/><span style=\"color: #000000;\">In practice, an additional safety margin is added based on flow conditions, erosion, thermal expansion, and vibration.<\/span><\/p><hr data-start=\"2641\" data-end=\"2644\" \/><h2 data-start=\"2646\" data-end=\"2706\"><span style=\"color: #000000;\">4. Influence of Material Type on Wall Thickness Selection<\/span><\/h2><p data-start=\"2708\" data-end=\"2799\"><span style=\"color: #000000;\">Each material has different strength properties that influence the required wall thickness:<\/span><\/p><h3 data-start=\"2801\" data-end=\"2817\"><span style=\"color: #000000;\">Carbon Steel<\/span><\/h3><ul data-start=\"2818\" data-end=\"2962\"><li data-start=\"2818\" data-end=\"2863\"><p data-start=\"2820\" data-end=\"2863\"><span style=\"color: #000000;\">Good strength for low to medium pressures<\/span><\/p><\/li><li data-start=\"2864\" data-end=\"2897\"><p data-start=\"2866\" data-end=\"2897\"><span style=\"color: #000000;\">Moderate corrosion resistance<\/span><\/p><\/li><li data-start=\"2898\" data-end=\"2910\"><p data-start=\"2900\" data-end=\"2910\"><span style=\"color: #000000;\">Low cost<\/span><\/p><\/li><li data-start=\"2911\" data-end=\"2962\"><p data-start=\"2913\" data-end=\"2962\"><span style=\"color: #000000;\">Typically requires a higher corrosion allowance<\/span><\/p><\/li><\/ul><h3 data-start=\"2964\" data-end=\"2999\"><span style=\"color: #000000;\">Stainless Steel (SS304 \/ SS316)<\/span><\/h3><ul data-start=\"3000\" data-end=\"3132\"><li data-start=\"3000\" data-end=\"3034\"><p data-start=\"3002\" data-end=\"3034\"><span style=\"color: #000000;\">Good high-temperature strength<\/span><\/p><\/li><li data-start=\"3035\" data-end=\"3069\"><p data-start=\"3037\" data-end=\"3069\"><span style=\"color: #000000;\">Excellent corrosion resistance<\/span><\/p><\/li><li data-start=\"3070\" data-end=\"3132\"><p data-start=\"3072\" data-end=\"3132\"><span style=\"color: #000000;\">Allows the use of thinner walls compared with carbon steel<\/span><\/p><\/li><\/ul><h3 data-start=\"3134\" data-end=\"3158\"><span style=\"color: #000000;\">Hastelloy \/ Titanium<\/span><\/h3><ul data-start=\"3159\" data-end=\"3331\"><li data-start=\"3159\" data-end=\"3195\"><p data-start=\"3161\" data-end=\"3195\"><span style=\"color: #000000;\">Exceptional corrosion resistance<\/span><\/p><\/li><li data-start=\"3196\" data-end=\"3265\"><p data-start=\"3198\" data-end=\"3265\"><span style=\"color: #000000;\">Suitable for very thin walls (0.5\u20131.2 mm) in heat-exchanger tubes<\/span><\/p><\/li><li data-start=\"3266\" data-end=\"3331\"><p data-start=\"3268\" data-end=\"3331\"><span style=\"color: #000000;\">High cost\u2014making excessive thickness economically inefficient<\/span><\/p><\/li><\/ul><h3 data-start=\"3333\" data-end=\"3358\"><span style=\"color: #000000;\">Duplex \/ Super Duplex<\/span><\/h3><ul data-start=\"3359\" data-end=\"3482\"><li data-start=\"3359\" data-end=\"3392\"><p data-start=\"3361\" data-end=\"3392\"><span style=\"color: #000000;\">Very high mechanical strength<\/span><\/p><\/li><li data-start=\"3393\" data-end=\"3426\"><p data-start=\"3395\" data-end=\"3426\"><span style=\"color: #000000;\">Allows reduced wall thickness<\/span><\/p><\/li><li data-start=\"3427\" data-end=\"3482\"><p data-start=\"3429\" data-end=\"3482\"><span style=\"color: #000000;\">Suitable for high-pressure + corrosive environments<\/span><\/p><\/li><\/ul><hr data-start=\"3484\" data-end=\"3487\" \/><h2 data-start=\"3489\" data-end=\"3546\"><span style=\"color: #000000;\">5. Selecting Wall Thickness in Heat Exchangers (Tubes)<\/span><\/h2><p data-start=\"3548\" data-end=\"3599\"><span style=\"color: #000000;\">Heat-exchanger tubes require unique considerations:<\/span><\/p><ul data-start=\"3601\" data-end=\"3956\"><li data-start=\"3601\" data-end=\"3646\"><p data-start=\"3603\" data-end=\"3646\"><span style=\"color: #000000;\"><strong data-start=\"3603\" data-end=\"3624\">TEMA requirements<\/strong>: usually 0.7\u20132.0 mm<\/span><\/p><\/li><li data-start=\"3647\" data-end=\"3707\"><p data-start=\"3649\" data-end=\"3707\"><span style=\"color: #000000;\"><strong data-start=\"3649\" data-end=\"3675\">Flow-induced vibration<\/strong>: thin tubes may wear or crack<\/span><\/p><\/li><li data-start=\"3708\" data-end=\"3770\"><p data-start=\"3710\" data-end=\"3770\"><span style=\"color: #000000;\"><strong data-start=\"3710\" data-end=\"3727\">Type of fluid<\/strong>: corrosive, viscous, or high-temperature<\/span><\/p><\/li><li data-start=\"3771\" data-end=\"3829\"><p data-start=\"3773\" data-end=\"3829\"><span style=\"color: #000000;\"><strong data-start=\"3773\" data-end=\"3790\">Flow velocity<\/strong>: higher velocity \u2192 increased erosion<\/span><\/p><\/li><li data-start=\"3830\" data-end=\"3876\"><p data-start=\"3832\" data-end=\"3876\"><span style=\"color: #000000;\"><strong data-start=\"3832\" data-end=\"3850\">Baffle spacing<\/strong>: affects tube stability<\/span><\/p><\/li><li data-start=\"3877\" data-end=\"3956\"><p data-start=\"3879\" data-end=\"3956\"><span style=\"color: #000000;\"><strong data-start=\"3879\" data-end=\"3903\">Tube-sheet expansion<\/strong>: tubes that are too thin may tear during expansion<\/span><\/p><\/li><\/ul><p data-start=\"3958\" data-end=\"3975\"><span style=\"color: #000000;\">Practical ranges:<\/span><\/p><ul data-start=\"3977\" data-end=\"4094\"><li data-start=\"3977\" data-end=\"4010\"><p data-start=\"3979\" data-end=\"4010\"><span style=\"color: #000000;\">Stainless steel \u2192 0.9\u20131.65 mm<\/span><\/p><\/li><li data-start=\"4011\" data-end=\"4038\"><p data-start=\"4013\" data-end=\"4038\"><span style=\"color: #000000;\">Hastelloy \u2192 0.7\u20131.25 mm<\/span><\/p><\/li><li data-start=\"4039\" data-end=\"4068\"><p data-start=\"4041\" data-end=\"4068\"><span style=\"color: #000000;\">Carbon steel \u2192 1.2\u20132.0 mm<\/span><\/p><\/li><li data-start=\"4069\" data-end=\"4094\"><p data-start=\"4071\" data-end=\"4094\"><span style=\"color: #000000;\">Titanium \u2192 0.5\u20130.9 mm<\/span><\/p><\/li><\/ul><hr data-start=\"4096\" data-end=\"4099\" \/><h2 data-start=\"4101\" data-end=\"4152\"><span style=\"color: #000000;\">6. Selecting Wall Thickness in Industrial Piping<\/span><\/h2><p data-start=\"4154\" data-end=\"4209\"><span style=\"color: #000000;\">In piping systems, wall thickness selection depends on:<\/span><\/p><h3 data-start=\"4211\" data-end=\"4250\"><span style=\"color: #000000;\">Pressure and Operating Conditions<\/span><\/h3><p data-start=\"4251\" data-end=\"4282\"><span style=\"color: #000000;\">Higher pressure \u2192 thicker wall.<\/span><\/p><h3 data-start=\"4284\" data-end=\"4301\"><span style=\"color: #000000;\">Temperature<\/span><\/h3><p data-start=\"4302\" data-end=\"4378\"><span style=\"color: #000000;\">At high temperatures, material strength decreases \u2192 requires a thicker wall.<\/span><\/p><h3 data-start=\"4380\" data-end=\"4416\"><span style=\"color: #000000;\">Internal or External Corrosion<\/span><\/h3><p data-start=\"4417\" data-end=\"4454\"><span style=\"color: #000000;\">Typical corrosion allowance values:<\/span><\/p><ul data-start=\"4455\" data-end=\"4526\"><li data-start=\"4455\" data-end=\"4486\"><p data-start=\"4457\" data-end=\"4486\"><span style=\"color: #000000;\"><strong data-start=\"4457\" data-end=\"4467\">1\u20133 mm<\/strong> for carbon steel<\/span><\/p><\/li><li data-start=\"4487\" data-end=\"4526\"><p data-start=\"4489\" data-end=\"4526\"><span style=\"color: #000000;\"><strong data-start=\"4489\" data-end=\"4504\">Almost zero<\/strong> for stainless steel<\/span><\/p><\/li><\/ul><h3 data-start=\"4528\" data-end=\"4539\"><span style=\"color: #000000;\">Welds<\/span><\/h3><p data-start=\"4540\" data-end=\"4630\"><span style=\"color: #000000;\">Welded pipes require weld efficiency <strong data-start=\"4577\" data-end=\"4586\">E &lt; 1<\/strong>, which increases calculated wall thickness.<\/span><\/p><h3 data-start=\"4632\" data-end=\"4661\"><span style=\"color: #000000;\">Mechanical Requirements<\/span><\/h3><ul data-start=\"4662\" data-end=\"4753\"><li data-start=\"4662\" data-end=\"4697\"><p data-start=\"4664\" data-end=\"4697\"><span style=\"color: #000000;\">Resistance to mechanical impact<\/span><\/p><\/li><li data-start=\"4698\" data-end=\"4715\"><p data-start=\"4700\" data-end=\"4715\"><span style=\"color: #000000;\">Dynamic loads<\/span><\/p><\/li><li data-start=\"4716\" data-end=\"4753\"><p data-start=\"4718\" data-end=\"4753\"><span style=\"color: #000000;\">Vibration from rotating equipment<\/span><\/p><\/li><\/ul><hr data-start=\"4755\" data-end=\"4758\" \/><h2 data-start=\"4760\" data-end=\"4822\"><span style=\"color: #000000;\">7. Example Table of Typical Wall Thicknesses (General Only)<\/span><\/h2><p data-start=\"4824\" data-end=\"4945\"><span style=\"color: #000000;\">This table is <strong data-start=\"4838\" data-end=\"4869\">not a design recommendation<\/strong>, but a technical reference of commonly available standard wall thicknesses:<\/span><\/p><div class=\"_tableContainer_1rjym_1\"><div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"><table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"4947\" data-end=\"5458\"><thead data-start=\"4947\" data-end=\"5033\"><tr data-start=\"4947\" data-end=\"5033\"><th data-start=\"4947\" data-end=\"4961\" data-col-size=\"sm\"><span style=\"color: #000000;\">System Type<\/span><\/th><th data-start=\"4961\" data-end=\"4982\" data-col-size=\"sm\"><span style=\"color: #000000;\">Operating Pressure<\/span><\/th><th data-start=\"4982\" data-end=\"4996\" data-col-size=\"sm\"><span style=\"color: #000000;\">Temperature<\/span><\/th><th data-start=\"4996\" data-end=\"5007\" data-col-size=\"sm\"><span style=\"color: #000000;\">Material<\/span><\/th><th data-start=\"5007\" data-end=\"5033\" data-col-size=\"sm\"><span style=\"color: #000000;\">Typical Wall Thickness<\/span><\/th><\/tr><\/thead><tbody data-start=\"5123\" data-end=\"5458\"><tr data-start=\"5123\" data-end=\"5187\"><td data-start=\"5123\" data-end=\"5144\" data-col-size=\"sm\"><span style=\"color: #000000;\">Low-pressure steam<\/span><\/td><td data-col-size=\"sm\" data-start=\"5144\" data-end=\"5154\"><span style=\"color: #000000;\">3\u20138 bar<\/span><\/td><td data-col-size=\"sm\" data-start=\"5154\" data-end=\"5162\"><span style=\"color: #000000;\">180\u00b0C<\/span><\/td><td data-col-size=\"sm\" data-start=\"5162\" data-end=\"5177\"><span style=\"color: #000000;\">Carbon Steel<\/span><\/td><td data-col-size=\"sm\" data-start=\"5177\" data-end=\"5187\"><span style=\"color: #000000;\">3\u20135 mm<\/span><\/td><\/tr><tr data-start=\"5188\" data-end=\"5241\"><td data-start=\"5188\" data-end=\"5200\" data-col-size=\"sm\"><span style=\"color: #000000;\">Hot water<\/span><\/td><td data-col-size=\"sm\" data-start=\"5200\" data-end=\"5211\"><span style=\"color: #000000;\">6\u201312 bar<\/span><\/td><td data-col-size=\"sm\" data-start=\"5211\" data-end=\"5219\"><span style=\"color: #000000;\">100\u00b0C<\/span><\/td><td data-col-size=\"sm\" data-start=\"5219\" data-end=\"5227\"><span style=\"color: #000000;\">SS304<\/span><\/td><td data-col-size=\"sm\" data-start=\"5227\" data-end=\"5241\"><span style=\"color: #000000;\">1.5\u20132.5 mm<\/span><\/td><\/tr><tr data-start=\"5242\" data-end=\"5318\"><td data-start=\"5242\" data-end=\"5274\" data-col-size=\"sm\"><span style=\"color: #000000;\">Titanium heat-exchanger tubes<\/span><\/td><td data-col-size=\"sm\" data-start=\"5274\" data-end=\"5286\"><span style=\"color: #000000;\">10\u201316 bar<\/span><\/td><td data-col-size=\"sm\" data-start=\"5286\" data-end=\"5294\"><span style=\"color: #000000;\">150\u00b0C<\/span><\/td><td data-col-size=\"sm\" data-start=\"5294\" data-end=\"5304\"><span style=\"color: #000000;\">Ti Gr.2<\/span><\/td><td data-col-size=\"sm\" data-start=\"5304\" data-end=\"5318\"><span style=\"color: #000000;\">0.5\u20130.9 mm<\/span><\/td><\/tr><tr data-start=\"5319\" data-end=\"5390\"><td data-start=\"5319\" data-end=\"5333\" data-col-size=\"sm\"><span style=\"color: #000000;\">Heavy acids<\/span><\/td><td data-start=\"5333\" data-end=\"5344\" data-col-size=\"sm\"><span style=\"color: #000000;\">5\u201312 bar<\/span><\/td><td data-start=\"5344\" data-end=\"5358\" data-col-size=\"sm\"><span style=\"color: #000000;\">up to 120\u00b0C<\/span><\/td><td data-start=\"5358\" data-end=\"5376\" data-col-size=\"sm\"><span style=\"color: #000000;\">Hastelloy C-276<\/span><\/td><td data-start=\"5376\" data-end=\"5390\" data-col-size=\"sm\"><span style=\"color: #000000;\">0.7\u20131.2 mm<\/span><\/td><\/tr><tr data-start=\"5391\" data-end=\"5458\"><td data-start=\"5391\" data-end=\"5408\" data-col-size=\"sm\"><span style=\"color: #000000;\">Compressed air<\/span><\/td><td data-start=\"5408\" data-end=\"5419\" data-col-size=\"sm\"><span style=\"color: #000000;\">6\u201320 bar<\/span><\/td><td data-start=\"5419\" data-end=\"5429\" data-col-size=\"sm\"><span style=\"color: #000000;\">Ambient<\/span><\/td><td data-start=\"5429\" data-end=\"5444\" data-col-size=\"sm\"><span style=\"color: #000000;\">Carbon Steel<\/span><\/td><td data-start=\"5444\" data-end=\"5458\" data-col-size=\"sm\"><span style=\"color: #000000;\">2.9\u20136.2 mm<\/span><\/td><\/tr><\/tbody><\/table><\/div><\/div><hr data-start=\"5460\" data-end=\"5463\" \/><h2 data-start=\"5465\" data-end=\"5514\"><span style=\"color: #000000;\">8. Common Mistakes in Wall Thickness Selection<\/span><\/h2><ul data-start=\"5516\" data-end=\"5943\"><li data-start=\"5516\" data-end=\"5601\"><p data-start=\"5518\" data-end=\"5601\"><span style=\"color: #000000;\">Selecting based on habit or past experience instead of standard-based calculation<\/span><\/p><\/li><li data-start=\"5602\" data-end=\"5675\"><p data-start=\"5604\" data-end=\"5675\"><span style=\"color: #000000;\">Oversizing the wall thickness \u2192 excessive cost and unnecessary weight<\/span><\/p><\/li><li data-start=\"5676\" data-end=\"5743\"><p data-start=\"5678\" data-end=\"5743\"><span style=\"color: #000000;\">Undersizing the wall \u2192 dangerous, especially in heat exchangers<\/span><\/p><\/li><li data-start=\"5744\" data-end=\"5796\"><p data-start=\"5746\" data-end=\"5796\"><span style=\"color: #000000;\">Ignoring corrosion allowance \u2192 premature failure<\/span><\/p><\/li><li data-start=\"5797\" data-end=\"5867\"><p data-start=\"5799\" data-end=\"5867\"><span style=\"color: #000000;\">Using a material with insufficient strength for the required loads<\/span><\/p><\/li><li data-start=\"5868\" data-end=\"5943\"><p data-start=\"5870\" data-end=\"5943\"><span style=\"color: #000000;\">Importing manufacturer data that is unsuitable for real site conditions<\/span><\/p><\/li><\/ul><hr data-start=\"5945\" data-end=\"5948\" \/><h2 data-start=\"5950\" data-end=\"6016\"><span style=\"color: #000000;\">9. How to Select Wall Thickness Correctly \u2014 A Structured Method<\/span><\/h2><h3 data-start=\"6018\" data-end=\"6063\"><span style=\"color: #000000;\">Step 1 \u2013 Collect All Required Design Data<\/span><\/h3><ul data-start=\"6064\" data-end=\"6211\"><li data-start=\"6064\" data-end=\"6083\"><p data-start=\"6066\" data-end=\"6083\"><span style=\"color: #000000;\">Design pressure<\/span><\/p><\/li><li data-start=\"6084\" data-end=\"6106\"><p data-start=\"6086\" data-end=\"6106\"><span style=\"color: #000000;\">Design temperature<\/span><\/p><\/li><li data-start=\"6107\" data-end=\"6127\"><p data-start=\"6109\" data-end=\"6127\"><span style=\"color: #000000;\">Fluid properties<\/span><\/p><\/li><li data-start=\"6128\" data-end=\"6145\"><p data-start=\"6130\" data-end=\"6145\"><span style=\"color: #000000;\">Pipe diameter<\/span><\/p><\/li><li data-start=\"6146\" data-end=\"6169\"><p data-start=\"6148\" data-end=\"6169\"><span style=\"color: #000000;\">Applicable standard<\/span><\/p><\/li><li data-start=\"6170\" data-end=\"6211\"><p data-start=\"6172\" data-end=\"6211\"><span style=\"color: #000000;\">Vibration, erosion, thermal expansion<\/span><\/p><\/li><\/ul><h3 data-start=\"6213\" data-end=\"6241\"><span style=\"color: #000000;\">Step 2 \u2013 Select Material<\/span><\/h3><p data-start=\"6242\" data-end=\"6309\"><span style=\"color: #000000;\">Based on corrosion, cleanliness, budget, and weight considerations.<\/span><\/p><h3 data-start=\"6311\" data-end=\"6379\"><span style=\"color: #000000;\">Step 3 \u2013 Calculate Wall Thickness per the Appropriate Standard<\/span><\/h3><h3 data-start=\"6381\" data-end=\"6421\"><span style=\"color: #000000;\">Step 4 \u2013 Adjust for Special Stresses<\/span><\/h3><ul data-start=\"6422\" data-end=\"6471\"><li data-start=\"6422\" data-end=\"6435\"><p data-start=\"6424\" data-end=\"6435\"><span style=\"color: #000000;\">Vibration<\/span><\/p><\/li><li data-start=\"6436\" data-end=\"6447\"><p data-start=\"6438\" data-end=\"6447\"><span style=\"color: #000000;\">Erosion<\/span><\/p><\/li><li data-start=\"6448\" data-end=\"6471\"><p data-start=\"6450\" data-end=\"6471\"><span style=\"color: #000000;\">Connection stresses<\/span><\/p><\/li><\/ul><h3 data-start=\"6473\" data-end=\"6512\"><span style=\"color: #000000;\">Step 5 \u2013 Verify Manufacturability<\/span><\/h3><p data-start=\"6513\" data-end=\"6583\"><span style=\"color: #000000;\">Very thin titanium tubes, for example, may tear during tube expansion.<\/span><\/p><h3 data-start=\"6585\" data-end=\"6625\"><span style=\"color: #000000;\">Step 6 \u2013 Check Market Availability<\/span><\/h3><p data-start=\"6626\" data-end=\"6671\"><span style=\"color: #000000;\">Only certain thicknesses exist in practice:<\/span><\/p><ul data-start=\"6672\" data-end=\"6777\"><li data-start=\"6672\" data-end=\"6707\"><p data-start=\"6674\" data-end=\"6707\"><span style=\"color: #000000;\">0.5 \/ 0.7 \/ 0.9 \/ 1.2 \/ 1.65 mm<\/span><\/p><\/li><li data-start=\"6708\" data-end=\"6742\"><p data-start=\"6710\" data-end=\"6742\"><span style=\"color: #000000;\">Schedule 10 \/ 40 \/ 80 (piping)<\/span><\/p><\/li><li data-start=\"6743\" data-end=\"6777\"><p data-start=\"6745\" data-end=\"6777\"><span style=\"color: #000000;\">DIN \/ EN commercial tube sizes<\/span><\/p><\/li><\/ul><hr data-start=\"6779\" data-end=\"6782\" \/><h2 data-start=\"6784\" data-end=\"6798\"><span style=\"color: #000000;\">10. Summary<\/span><\/h2><p data-start=\"6800\" data-end=\"7156\"><span style=\"color: #000000;\">Selecting the correct wall thickness for pipes and tubes is an engineering process that balances strength, pressure, temperature, corrosion resistance, thermal performance, cost, and manufacturability. Using calculations based on recognized standards\u2014combined with practical engineering judgment\u2014helps achieve a safe, economical, and long-lasting solution.<\/span><\/p><p data-start=\"7158\" data-end=\"7319\"><span style=\"color: #000000;\">For complex applications or extreme operating conditions, it is essential to perform full code-based calculations and consult an experienced mechanical engineer.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-e90f4f2 e-flex e-con-boxed e-con e-parent\" data-id=\"e90f4f2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-68ae392 elementor-widget elementor-widget-template\" data-id=\"68ae392\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<div data-elementor-type=\"section\" data-elementor-id=\"1737\" class=\"elementor elementor-1737\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-589df58 e-con-full e-flex e-con e-parent\" data-id=\"589df58\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-15be923 e-con-full e-flex e-con e-child\" data-id=\"15be923\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-54e5a43 elementor-widget elementor-widget-heading\" data-id=\"54e5a43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Why Choose Gold-Bar<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa918dd elementor-widget elementor-widget-text-editor\" data-id=\"aa918dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-size: 14pt;\">For over 30 years, <strong data-start=\"99\" data-end=\"123\">Gold-Bar Engineering<\/strong> has been a trusted partner to Israel\u2019s leading industries, delivering more than 300 successful projects every year. Our clients choose us for our uncompromising quality, precision engineering, and proven reliability in every heat exchanger, pressure vessel, and process system we build. When you work with Gold-Bar, you gain a partner committed to excellence \u2014 every step of the way.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f0dae41 e-con-full e-flex e-con e-child\" data-id=\"f0dae41\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da4c850 elementor-widget elementor-widget-image\" data-id=\"da4c850\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/gold-bar.co.il\/wp-content\/uploads\/2025\/10\/AdobeStock_629461624-1024x683.webp\" class=\"attachment-large size-large wp-image-1659\" alt=\"\" srcset=\"https:\/\/gold-bar.co.il\/wp-content\/uploads\/2025\/10\/AdobeStock_629461624-1024x683.webp 1024w, 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   \u00a9 2025 Gold-Bar Industries Ltd. |\n    <a href=\"\/privacy-policy\" style=\"color:#4fa3ff; text-decoration:none;\">Privacy Policy<\/a> |\n    <a href=\"https:\/\/gold-bar.co.il\/new\/acc-statement\/\" class=\"accessibility-link\">Accessibility Statement<\/a>\n  <\/div>\n<\/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>\n\t\t\t\t<\/div>\n\t\t\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>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Designing Tube and Pipe Wall Thickness for Heat Exchangers Selecting pipes and tubes according to wall thickness is one of the most critical engineering steps in the design of pressure systems, heat exchangers, piping networks, and process equipment. Because the wall thickness determines a tube\u2019s resistance to pressure, temperature, corrosion, and mechanical loads, choosing it [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2645","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/pages\/2645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/comments?post=2645"}],"version-history":[{"count":11,"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/pages\/2645\/revisions"}],"predecessor-version":[{"id":2666,"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/pages\/2645\/revisions\/2666"}],"wp:attachment":[{"href":"https:\/\/gold-bar.co.il\/new\/wp-json\/wp\/v2\/media?parent=2645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}