{"id":6386,"date":"2023-08-03T10:05:56","date_gmt":"2023-08-03T14:05:56","guid":{"rendered":"https:\/\/www.har-tech.com\/?p=6386"},"modified":"2026-06-12T13:49:17","modified_gmt":"2026-06-12T17:49:17","slug":"oxy-acetylene-welding","status":"publish","type":"post","link":"https:\/\/www.har-tech.com\/en\/oxy-acetylene-welding\/","title":{"rendered":"Torch welding: processes, steps, and industrial applications"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"6386\" class=\"elementor elementor-6386 elementor-6377\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f125bbb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f125bbb\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-49e9807\" data-id=\"49e9807\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6142ff1 elementor-widget elementor-widget-text-editor\" data-id=\"6142ff1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Torch welding<\/strong> remains one of the most versatile metal joining methods available today. For maintenance managers, process engineers, and industrial operations teams, understanding its different applications and limitations helps prevent costly specification errors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-10921e6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"10921e6\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-87c0b09\" data-id=\"87c0b09\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b4305c elementor-widget elementor-widget-text-editor\" data-id=\"5b4305c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Key takeaways<\/p><ul><li>Oxy-acetylene torch welding generates a flame that can reach temperatures of up to 3,200\u00b0C, making it suitable for working with steel, aluminium, copper, and brass.<\/li><li>Four distinct processes are available: fusion welding, soft soldering, brazing, and braze welding, each designed for specific materials and thicknesses.<\/li><li>In Quebec, welding work performed on pressure equipment requires certification issued by the R\u00e9gie du b\u00e2timent du Qu\u00e9bec (RBQ).<\/li><li>Industrial applications include component manufacturing, equipment repairs, and fieldwork where electrical power is unavailable.<\/li><li>For critical applications, working with certified welders helps reduce compliance risks and production downtime.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8395561 elementor-widget elementor-widget-heading\" data-id=\"8395561\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is torch welding, and why is it still used in industry?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6aefab8 elementor-widget elementor-widget-text-editor\" data-id=\"6aefab8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Torch welding<\/strong> is a thermal joining process that uses the combustion of a gas mixture to heat metals to their melting point. The most common industrial method is oxy-acetylene welding, which combines oxygen and acetylene to produce a flame capable of reaching temperatures between 3,100\u00b0C and 3,200\u00b0C, depending on the settings.<\/p><p>Despite the development of modern techniques such as TIG and MIG welding, torch welding remains relevant for one key reason: portability. Unlike electric welding equipment, oxy-acetylene systems operate without an electrical power source, making them ideal for on-site repairs, industrial construction projects, and hard-to-reach locations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-874592b elementor-widget elementor-widget-heading\" data-id=\"874592b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The four torch welding processes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f46a7b elementor-widget elementor-widget-text-editor\" data-id=\"2f46a7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>These four processes differ primarily in operating temperature, filler metal composition, and intended application. Choosing the wrong method can weaken a joint or cause permanent distortion of the workpiece.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60eb464 elementor-widget elementor-widget-heading\" data-id=\"60eb464\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Fusion welding (oxy-acetylene welding)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c243fa elementor-widget elementor-widget-text-editor\" data-id=\"1c243fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Fusion welding<\/strong> joins two pieces of the same metal by heating them directly to their melting point, often without the use of a filler metal (known as autogenous welding). The base materials melt together to create a homogeneous weld bead.<br \/>This process is particularly well suited for low-alloy steels and ferrous metals. A neutral flame, achieved with a 1:1 oxygen-to-acetylene ratio, is the standard setting for preserving the mechanical properties of the base metal.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ec87a6 elementor-widget elementor-widget-heading\" data-id=\"6ec87a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Soft soldering<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4f6b14 elementor-widget elementor-widget-text-editor\" data-id=\"b4f6b14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Soft soldering<\/strong> uses a filler metal with a melting point below 400\u00b0C, typically a tin-based alloy. The base metals do not melt. Instead, the filler metal melts and fills the joint through capillary action.<br \/>This method is commonly used in electrical applications, light plumbing work, and precision repairs where overheating the base materials must be avoided.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8072ae elementor-widget elementor-widget-heading\" data-id=\"d8072ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Brazing<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-df33dd8 elementor-widget elementor-widget-text-editor\" data-id=\"df33dd8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Brazing<\/strong> uses a filler metal with a melting point between 400\u00b0C and 700\u00b0C, typically copper- or silver-based alloys. Maintaining a steady torch movement along the joint line is essential to ensure even filler metal penetration.<br \/>Typical applications include industrial plumbing systems, heating systems, and mechanically stressed piping assemblies.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e224c9c elementor-widget elementor-widget-heading\" data-id=\"e224c9c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Braze welding\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cfb3a4 elementor-widget elementor-widget-text-editor\" data-id=\"1cfb3a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Braze welding<\/strong> operates at temperatures above 900\u00b0C and typically uses a flux-coated brass filler rod. This process is often selected for large assemblies or applications where components will be subjected to significant mechanical stress after joining.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-696ccd9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"696ccd9\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4e8a2b8\" data-id=\"4e8a2b8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9ae6155 elementor-widget elementor-widget-heading\" data-id=\"9ae6155\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Torch welding steps in an industrial environment<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-436557a elementor-widget elementor-widget-text-editor\" data-id=\"436557a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Successful <strong>torch welding<\/strong> depends as much on proper preparation as it does on technical execution. The following steps reflect standard industrial practices.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ab8f12 elementor-widget elementor-widget-heading\" data-id=\"9ab8f12\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Surface preparation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2fc04a2 elementor-widget elementor-widget-text-editor\" data-id=\"2fc04a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Surfaces must be free from contaminants such as oil, paint, oxidation, and moisture. Poor surface preparation can compromise filler metal adhesion and create porosity within the weld bead.<br \/>In industrial settings, cleaning is typically performed using abrasives suited to the material being treated. Creating fine surface grooves can improve filler metal bonding during <strong>brazing operations<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dfe9fa elementor-widget elementor-widget-heading\" data-id=\"7dfe9fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Torch selection and flame adjustment<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d279b8 elementor-widget elementor-widget-text-editor\" data-id=\"8d279b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The choice of torch (single-gas or dual-gas) and flame type depends on both the process and the material being welded:<\/p><ul><li>Neutral flame: carbon steel and copper<\/li><li>Carburizing flame: aluminium alloys, zinc, and cast iron<\/li><li>Oxidizing flame: braze welding, brass, and bronze<\/li><\/ul><p>Improper flame adjustment can lead to oxidation of the base metal or unwanted carburization that alters the mechanical properties of the finished assembly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79e5f0e elementor-widget elementor-widget-heading\" data-id=\"79e5f0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Heating the components<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bf44fa elementor-widget elementor-widget-text-editor\" data-id=\"1bf44fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong>torch<\/strong> is directed toward the joint area using a consistent motion to prevent localized overheating. Torch distance and angle must remain constant to ensure even heat distribution.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f70622 elementor-widget elementor-widget-heading\" data-id=\"8f70622\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Adding the filler metal<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c5c321 elementor-widget elementor-widget-text-editor\" data-id=\"8c5c321\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>For soldering and <strong>brazing processes<\/strong>, filler metal is introduced once the components reach the proper temperature. Capillary action draws the molten filler into the joint gap. True autogenous fusion welding does not require filler metal.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6fddcce elementor-widget elementor-widget-heading\" data-id=\"6fddcce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Cooling and finishing<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2009555 elementor-widget elementor-widget-text-editor\" data-id=\"2009555\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Components should cool naturally without premature mechanical intervention. Forced cooling can create residual stresses or cracking. Once cooling is complete, the weld bead is cleaned using a wire brush to remove oxidation residue and inspect weld quality.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-de60716 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"de60716\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e2e8bf4\" data-id=\"e2e8bf4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-98d5dae elementor-widget elementor-widget-heading\" data-id=\"98d5dae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Advantages of torch welding in industrial applications\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b135a40 elementor-widget elementor-widget-text-editor\" data-id=\"b135a40\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Torch welding<\/strong> continues to offer practical advantages in modern industrial environments when used for the appropriate applications.<\/p><ul><li>Electrical independence<br \/>Oxy-acetylene systems require no electrical power source. This is a major advantage for maintenance work performed in remote locations or on active job sites.<\/li><li>Material versatility<br \/>A single system can be used to work with steel, aluminium, copper, brass, and their alloys simply by adjusting flame settings.<\/li><li>Process flexibility<br \/>With a torch change and pressure adjustment, the same equipment can switch from welding to oxy-fuel cutting, providing valuable versatility in fabrication and manufacturing facilities.<\/li><li>Cost-effectiveness for occasional repairs<br \/>Oxy-acetylene equipment generally costs less than TIG or MIG welding systems, making it a practical solution for corrective maintenance and occasional welding work.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-499b9b6 elementor-widget elementor-widget-heading\" data-id=\"499b9b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Limitations and precautions: when a torch is not enough\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62c8258 elementor-widget elementor-widget-text-editor\" data-id=\"62c8258\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Torch welding<\/strong> also presents technical limitations that must be considered when specifying industrial work.<\/p><ul><li>Limited precision<br \/>The heat-affected zone (HAZ) is larger than with <a href=\"https:\/\/www.har-tech.com\/soudage-tig\/\" target=\"_blank\" rel=\"noopener\">TIG welding<\/a> or <a href=\"https:\/\/www.har-tech.com\/soudage-mig-mag\/\" target=\"_blank\" rel=\"noopener\">MIG-MAG welding<\/a>. For precision assemblies or components with tight tolerances, other processes are generally preferred. <\/li><li>Dependence on operator skill<br \/>Weld quality depends heavily on the welder&#8217;s expertise. An unqualified operator may produce uneven welds, porosity, or insufficient penetration.<\/li><li>Fumes and ventilation requirements<br \/>Quebec&#8217;s occupational health and safety regulations govern welding fume exposure in the workplace. Work performed in confined or poorly ventilated spaces requires appropriate respiratory protection measures.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad78675 elementor-widget elementor-widget-heading\" data-id=\"ad78675\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Frequently asked questions about torch welding\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5b16bd elementor-widget elementor-widget-toggle\" data-id=\"e5b16bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2401\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-2401\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What temperature does an oxy-acetylene flame reach?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-2401\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-2401\"><p>An oxy-acetylene flame reaches temperatures between 3,100\u00b0C and 3,200\u00b0C, depending on the oxygen-to-acetylene ratio. It is the hottest flame among common industrial gas-fuel processes and is approximately three times more powerful than a propane flame.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2402\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-2402\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Is torch welding suitable for complex industrial work?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-2402\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-2402\"><p>Yes. It is highly effective for portable welding, field repairs, and work involving various metals. However, TIG or MIG welding is generally preferred for high-precision assemblies or specialized stainless steel applications.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-2403\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-2403\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What is the difference between soft soldering and brazing?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-2403\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-2403\"><p>Soft soldering uses a filler metal with a melting point below 400\u00b0C, typically tin-based alloys, making it suitable for electrical applications and light repairs. Brazing uses filler metals with melting points between 400\u00b0C and 700\u00b0C, such as copper- or silver-based alloys, providing greater mechanical strength for industrial plumbing and high-stress piping systems.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c3ea16 elementor-widget elementor-widget-heading\" data-id=\"6c3ea16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">HARtech: certified welders serving Quebec\u2019s industrial sector\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab57416 elementor-widget elementor-widget-text-editor\" data-id=\"ab57416\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>At <a href=\"https:\/\/www.har-tech.com\/en\/\" target=\"_blank\" rel=\"noopener\">HARtech<\/a>, <strong>torch welding<\/strong> is part of a comprehensive <a href=\"https:\/\/www.har-tech.com\/en\/industrial-welding\/\" target=\"_blank\" rel=\"noopener\">industrial welding<\/a> service offering that includes fusion welding, brazing, and braze welding. Our experienced welders perform all work in accordance with applicable Quebec industry standards.<\/p><p>Since 1999, our Saint-Laurent facility has supported manufacturers, maintenance managers, and engineering teams with fabrication, repair, and metal transformation projects. Whether you require emergency repairs or custom manufacturing services, our team can respond quickly and efficiently.<\/p><p>Our expertise extends across a wide range of industrial sectors, allowing us to provide reliable <strong>welding solutions<\/strong> tailored to the specific requirements of each project. From equipment repairs and structural modifications to custom metal fabrication, we help businesses maintain productivity while ensuring quality and compliance.<\/p><p>Working with qualified professionals helps reduce the risk of costly downtime, premature equipment failure, and non-compliant welds. By combining technical expertise with responsive service, HARtech delivers welding solutions that meet the demands of Quebec\u2019s industrial environment.<br \/>Call us or contact us online to discuss your project.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-861d0b2 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"861d0b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"tel:5144228282\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">514 422-8282<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba5197c elementor-align-center elementor-widget elementor-widget-button\" data-id=\"ba5197c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/www.har-tech.com\/en\/contact-us\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contactez-nous<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Torch welding remains one of the most versatile metal joining methods available today. For maintenance managers, process engineers, and industrial operations teams, understanding its different applications and limitations helps prevent costly specification errors. Key takeaways Oxy-acetylene torch welding generates a flame that can reach temperatures of up to 3,200\u00b0C, making it suitable for working with &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.har-tech.com\/en\/oxy-acetylene-welding\/\"> <span class=\"screen-reader-text\">Torch welding: processes, steps, and industrial applications<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":3,"featured_media":6381,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Oxy-Acetylene Welding: Everything You Need to Know | HARtech","_seopress_titles_desc":"Find out how oxy-acetylene welding works and what it is used for in this quick guide by the experts at HARtech. Torch welding is affordable and versatile!","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"oxy-acetylene welding,blowpipe welding","site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[70],"tags":[],"class_list":{"0":"post-6386","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-machining"},"_links":{"self":[{"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/posts\/6386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/comments?post=6386"}],"version-history":[{"count":20,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/posts\/6386\/revisions"}],"predecessor-version":[{"id":8491,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/posts\/6386\/revisions\/8491"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/media\/6381"}],"wp:attachment":[{"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/media?parent=6386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/categories?post=6386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.har-tech.com\/en\/wp-json\/wp\/v2\/tags?post=6386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}