{"id":8555,"date":"2025-10-23T13:06:09","date_gmt":"2025-10-23T06:06:09","guid":{"rendered":"https:\/\/www.intanpertiwi.co.id\/?p=8555"},"modified":"2026-01-30T13:53:03","modified_gmt":"2026-01-30T06:53:03","slug":"apa-itu-pengelasan-smaw","status":"publish","type":"post","link":"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/","title":{"rendered":"SMAW Welding: Working Principle and Electrode Selection"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"8555\" class=\"elementor elementor-8555\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a795b1f e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"5a795b1f\" 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-35f54286 elementor-widget elementor-widget-text-editor\" data-id=\"35f54286\" 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 data-start=\"130\" data-end=\"675\" class=\"translation-block\">What is SMAW welding? SMAW welding is the most common welding process found in general workshops and field projects. The equipment is compact, flexible for multiple positions, and capable of working on a wide range of carbon steel materials. To determine the appropriate electrode for the material, thickness, and working position, use the <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/kawat-las-kobe\/\" target=\"_self\">welding electrode selection guide<\/a> as a starting point.<\/p><p data-start=\"130\" data-end=\"675\">This guide focuses on real-world needs. You'll learn the principles of SMAW welding, how to select polarity, current-per-diameter guidelines, electrode mapping based on application, position-by-position techniques, and a practical safety and health checklist and troubleshooting steps.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Apa_itu_Pengelasan_SMAW\" >What is SMAW Welding?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Komponen_utama_pada_pengelasan_SMAW\" >Main components in SMAW welding<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Prinsip_perlindungan_fluks\" >Principle of flux protection<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#DCEP_DCEN_dan_AC_pada_pengelasan_SMAW\" >DCEP, DCEN, and AC in SMAW welding<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#DCEP\" >DCEP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#DCEN\" >DCEN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#AC\" >AC<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Variabel_proses_yang_paling_berpengaruh\" >The most influential process variables<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Arus_dan_diameter_elektroda\" >Current and electrode diameter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Tegangan_busur_dan_panjang_arc\" >Arc voltage and arc length<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Kecepatan_gerak_dan_masukan_panas\" >Motion speed and heat input<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Sudut_dan_teknik_manipulasi\" >Angles and manipulation techniques<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Tabel_cepat_diameter_dan_arus_rekomendasi\" >Quick table of recommended diameters and flows<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Memilih_elektroda_yang_tepat_untuk_pengelasan_SMAW\" >Choosing the right electrode for SMAW welding<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Baja_karbon_rendah_dan_fabrikasi_umum\" >Low carbon steel and general fabrication<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Struktur_dan_sambungan_yang_menuntut_ketangguhan\" >Structures and connections that require toughness<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Aplikasi_pipa_dengan_kontrol_root_yang_presisi\" >Pipe application with precise root control<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Material_khusus\" >Special materials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Ringkasan_pemetaan_cepat\" >Quick mapping summary<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Panduan_posisi_pengelasan\" >Welding Position Guide<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Posisi_datar\" >Flat position<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Posisi_horizontal\" >Horizontal position<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Posisi_vertikal\" >Vertical Position<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Posisi_di_atas_kepala\" >Above Head Position<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-pengelasan-smaw\/#Kesimpulan\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 data-start=\"677\" data-end=\"703\"><span class=\"ez-toc-section\" id=\"Apa_itu_Pengelasan_SMAW\"><\/span>What is SMAW Welding?<span class=\"ez-toc-section-end\"><\/span><\/h2><p data-start=\"704\" data-end=\"1244\">SMAW, or Shielded Metal Arc Welding, is also often called stick welding or MMA. An electric arc is formed between the tip of a flux-coated electrode and the workpiece.<\/p><p data-start=\"704\" data-end=\"1244\">The flux layer melts, producing a shielding gas and slag that seals the molten metal pool to prevent air contamination. After solidifying, the slag is removed to reveal the weld bead.<\/p><p data-start=\"704\" data-end=\"1244\">The power source used can be either direct current or alternating current. Core equipment includes a welding machine, ground cable, electrode holder, and complete personal protective equipment.<\/p><h3 data-start=\"1246\" data-end=\"1285\"><span class=\"ez-toc-section\" id=\"Komponen_utama_pada_pengelasan_SMAW\"><\/span>Main components in SMAW welding<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li data-start=\"1286\" data-end=\"1657\">Power source with current regulation and if available auxiliary features such as hot start and arc force.<\/li><li data-start=\"1286\" data-end=\"1657\">The holder and working cable are well maintained so that the voltage drop is not excessive.<\/li><li data-start=\"1286\" data-end=\"1657\" class=\"translation-block\">Welding electrodes are coated with flux that suits the material and welding task.<\/li><li data-start=\"1286\" data-end=\"1657\">Personal protective equipment includes welding helmets, gloves, heat-resistant clothing, safety glasses, and work shoes.<\/li><\/ul><h3 data-start=\"1659\" data-end=\"1689\"><span class=\"ez-toc-section\" id=\"Prinsip_perlindungan_fluks\"><\/span>Principle of flux protection<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"1690\" data-end=\"1904\">Flux releases a shielding gas that drives oxygen and nitrogen from the weld pool. Flux also forms a slag that stabilizes the pool, slows cooling, and helps produce a smooth bead surface.<\/p><h2 data-start=\"1906\" data-end=\"1948\"><span class=\"ez-toc-section\" id=\"DCEP_DCEN_dan_AC_pada_pengelasan_SMAW\"><\/span>DCEP, DCEN, and AC in SMAW welding<span class=\"ez-toc-section-end\"><\/span><\/h2><p data-start=\"1949\" data-end=\"2031\">Polarity selection affects penetration, arc stability, and pool control.<\/p><h3 data-start=\"2033\" data-end=\"2041\"><span class=\"ez-toc-section\" id=\"DCEP\"><\/span>DCEP<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"2042\" data-end=\"2269\">Direct current with a positive electrode tends to provide deeper penetration and a sharper arc. It is widely used with low-hydrogen electrodes such as E7016 and E7018 in joints that require strength and toughness.<\/p><h3 data-start=\"2271\" data-end=\"2279\"><span class=\"ez-toc-section\" id=\"DCEN\"><\/span>DCEN<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"2280\" data-end=\"2522\">Direct current with a negative electrode creates a more even heat distribution on the surface, which helps when controlling pools on thin plates or when chasing fine beads.<\/p><p data-start=\"2280\" data-end=\"2522\" class=\"translation-block\">Suitable for several rutile type electrodes that support <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-dcep-dalam-pengelsan\/\" target=\"_self\">DCEN<\/a>.<\/p><h3 data-start=\"2524\" data-end=\"2530\"><span class=\"ez-toc-section\" id=\"AC\"><\/span>AC<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"2531\" data-end=\"2701\">Alternating current offers a good compromise for general applications and is useful when the field power supply provides an AC transformer. Many E6013 class circuits operate stably on AC.<\/p><p data-start=\"2703\" data-end=\"2934\"><strong data-start=\"2703\" data-end=\"2720\">Quick guide<\/strong><\/p><ul><li data-start=\"2703\" data-end=\"2934\" class=\"translation-block\">Root or high penetration needs tend to use <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/apa-itu-dcep-dalam-pengelsan\/\" target=\"_self\">DCEP<\/a>.<\/li><li data-start=\"2703\" data-end=\"2934\">Thin plates and gentle pool controls tend to use DCEN or E6013 in AC.<\/li><li data-start=\"2703\" data-end=\"2934\">Always follow the manufacturer's recommendations on the packaging and the project WPS.<\/li><\/ul><h2 data-start=\"2936\" data-end=\"2978\"><span class=\"ez-toc-section\" id=\"Variabel_proses_yang_paling_berpengaruh\"><\/span>The most influential process variables<span class=\"ez-toc-section-end\"><\/span><\/h2><p data-start=\"2979\" data-end=\"3075\">The following four variables determine bead quality and joint consistency in SMAW welding.<\/p><h3 data-start=\"3077\" data-end=\"3108\"><span class=\"ez-toc-section\" id=\"Arus_dan_diameter_elektroda\"><\/span>Current and electrode diameter<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"3109\" data-end=\"3319\">The current must be commensurate with the electrode diameter. Too low a current can cause the electrode to stick easily and produce high beads. Too high a current can cause sparks, undercuts, and an enlarged heat-affected zone.<\/p><h3 data-start=\"3321\" data-end=\"3355\"><span class=\"ez-toc-section\" id=\"Tegangan_busur_dan_panjang_arc\"><\/span>Arc voltage and arc length<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"3356\" data-end=\"3543\">Arc length correlates with effective voltage. Excessively long arcs can lead to stray arcs, increased sparking, and porosity. Maintain an arc length approximately equal to the electrode core diameter.<\/p><h3 data-start=\"3545\" data-end=\"3582\"><span class=\"ez-toc-section\" id=\"Kecepatan_gerak_dan_masukan_panas\"><\/span>Motion speed and heat input<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"3583\" data-end=\"3825\">Heat input can be estimated using a simple approximation: voltage times current times time per length. Too slow a speed increases heat input and the risk of distortion. Too fast a speed can potentially lead to under-fusion.<\/p><h3 data-start=\"3827\" data-end=\"3858\"><span class=\"ez-toc-section\" id=\"Sudut_dan_teknik_manipulasi\"><\/span>Angles and manipulation techniques<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"3859\" data-end=\"4106\">Use a push or pull angle of approximately five to fifteen degrees. Choose stringer beads to control penetration and minimize trapped slag. Use weave as needed on uphill positions or when the joint width requires even filling.<\/p><h2 data-start=\"4108\" data-end=\"4152\"><span class=\"ez-toc-section\" id=\"Tabel_cepat_diameter_dan_arus_rekomendasi\"><\/span>Quick table of recommended diameters and flows<span class=\"ez-toc-section-end\"><\/span><\/h2><p data-start=\"4153\" data-end=\"4330\">The figures below are typical ranges for rutile and low-hydrogen electrodes on carbon steel. Always check the manufacturer's label and perform a short test on a sample before production.<\/p><table><thead><tr><th align=\"right\">Diameter (mm)<\/th><th align=\"center\">Current (A)<\/th><th align=\"center\">Material thickness (mm)<\/th><\/tr><\/thead><tbody><tr><td style=\"text-align: center;\" align=\"right\">2.0<\/td><td style=\"text-align: center;\" align=\"center\">40 to 70<\/td><td style=\"text-align: center;\" align=\"center\">1 to 2<\/td><\/tr><tr><td style=\"text-align: center;\" align=\"right\">2.6<\/td><td style=\"text-align: center;\" align=\"center\">60 to 100<\/td><td style=\"text-align: center;\" align=\"center\">2 to 4<\/td><\/tr><tr><td style=\"text-align: center;\" align=\"right\">3.2<\/td><td style=\"text-align: center;\" align=\"center\">90 to 130<\/td><td style=\"text-align: center;\" align=\"center\">3 to 8<\/td><\/tr><tr><td style=\"text-align: center;\" align=\"right\">4.0<\/td><td style=\"text-align: center;\" align=\"center\">130 to 180<\/td><td style=\"text-align: center;\" align=\"center\">6 to 12<\/td><\/tr><tr><td style=\"text-align: center;\" align=\"right\">5.0<\/td><td style=\"text-align: center;\" align=\"center\">170 to 240<\/td><td style=\"text-align: center;\" align=\"center\">more than 10<\/td><\/tr><\/tbody><\/table><p data-start=\"5029\" data-end=\"5326\"><strong data-start=\"5029\" data-end=\"5048\">Practice notes<\/strong><\/p><p data-start=\"5029\" data-end=\"5326\">If the engine has a hot start and arc force, increase the hot start slightly to make starting easier. Adjust the arc force just enough to avoid excessive sparking.<\/p><p data-start=\"5029\" data-end=\"5326\">Perform a restrike on the run off tab or area to be cut to avoid leaving defects on the component.<\/p><h2 data-start=\"5328\" data-end=\"5381\"><span class=\"ez-toc-section\" id=\"Memilih_elektroda_yang_tepat_untuk_pengelasan_SMAW\"><\/span>Choosing the right electrode for SMAW welding<span class=\"ez-toc-section-end\"><\/span><\/h2><p data-start=\"5382\" data-end=\"5463\">Use the following mapping as a starting point then adapt it to the project WPS.<\/p><h3 data-start=\"5465\" data-end=\"5506\"><span class=\"ez-toc-section\" id=\"Baja_karbon_rendah_dan_fabrikasi_umum\"><\/span>Low carbon steel and general fabrication<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"5507\" data-end=\"5736\">E6013 grades like RB 26 are suitable for thin to medium plate, tack, and general-purpose work. Slag is easily removed and the bead appearance is clean. Can be operated on both AC and DC.<\/p><p data-start=\"5507\" data-end=\"5736\" class=\"translation-block\">RB 26 product references can be seen on the product page <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/product\/kawat-las-rb-26\/\" target=\"_self\">kobe rb 26 welding electrode<\/a>.<\/p><h3 data-start=\"5738\" data-end=\"5790\"><span class=\"ez-toc-section\" id=\"Struktur_dan_sambungan_yang_menuntut_ketangguhan\"><\/span>Structures and connections that require toughness<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"5791\" data-end=\"6145\" class=\"translation-block\">Low hydrogen grades such as E7016 and <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/jenis-kawat-las\/elektroda-e7018\/\" target=\"_self\">E7018<\/a> provide better joint toughness provided dry handling is maintained.<\/p><p data-start=\"5791\" data-end=\"6145\">Product reference:<\/p><ul><li data-start=\"5791\" data-end=\"6145\">LB 52 E7016 for structural applications.<\/li><li data-start=\"5791\" data-end=\"6145\">LB 52 18 E7018 for high deposition rates in flat and horizontal positions.<\/li><li data-start=\"5791\" data-end=\"6145\">LB 52U is preferred on pipes for root and welding from one side with good pool control.<\/li><\/ul><h3 data-start=\"6147\" data-end=\"6197\"><span class=\"ez-toc-section\" id=\"Aplikasi_pipa_dengan_kontrol_root_yang_presisi\"><\/span>Pipe application with precise root control<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"6198\" data-end=\"6383\" class=\"translation-block\">High cellulose grades are commonly used for root passes in vertical up positions. Product reference <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/product\/kobe-6010\/\" target=\"_self\">KOBE 6010<\/a> for carbon steel and <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/product\/kobe-7010s\/\" target=\"_self\">KOBE 7010S<\/a> for higher tensile strength requirements.<\/p><h3 data-start=\"6385\" data-end=\"6404\"><span class=\"ez-toc-section\" id=\"Material_khusus\"><\/span>Special materials<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"6405\" data-end=\"6590\">For stainless steel and cast iron, use filler compatible with the base metal composition and adhere to project standards. The work environment must be clean, and parameters must be set strictly.<\/p><h3 data-start=\"6592\" data-end=\"6620\"><span class=\"ez-toc-section\" id=\"Ringkasan_pemetaan_cepat\"><\/span>Quick mapping summary<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li class=\"translation-block\">General applications of thin plates tend to use <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/jenis-kawat-las\/elektroda-e6013\/\" target=\"_self\">E6013<\/a>.<\/li><li>Dynamic structures and loads tend to use E7016 or E7018 with a drying discipline.<\/li><li>The vertical pipe root rises tend to use E6010 or E7010 with keyhole technique.<\/li><li>Special materials using fillers according to project standards and procedures.<\/li><\/ul><p class=\"translation-block\"><strong>Also Read<\/strong> : <a href=\"https:\/\/www.intanpertiwi.co.id\/en\/panduan\/cara-memilih-ukuran-kawat-las-rb-26\/\" target=\"_self\">How to Choose Welding Electrode Size RB-26<\/a><\/p><h2 data-start=\"6919\" data-end=\"6947\"><span class=\"ez-toc-section\" id=\"Panduan_posisi_pengelasan\"><\/span>Welding Position Guide<span class=\"ez-toc-section-end\"><\/span><\/h2><p data-start=\"6948\" data-end=\"7083\">Fillet positions one F to four F and plate positions one G to six G require technique adjustments for consistent SMAW welding.<\/p><h3 data-start=\"7085\" data-end=\"7101\"><span class=\"ez-toc-section\" id=\"Posisi_datar\"><\/span>Flat position<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"7102\" data-end=\"7276\">Hold the pull angle at about a five to ten degree angle. Use a stringer bead to minimize trapped slag. Adjust the flow according to the diameter to prevent the pool from becoming too fluid.<\/p><h3 data-start=\"7278\" data-end=\"7299\"><span class=\"ez-toc-section\" id=\"Posisi_horizontal\"><\/span>Horizontal position<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"7300\" data-end=\"7448\">Keep the pool from flowing downhill at a slight upward angle. Use small anchor movements to close the roots and tie both sides.<\/p><h3 data-start=\"7450\" data-end=\"7469\"><span class=\"ez-toc-section\" id=\"Posisi_vertikal\"><\/span>Vertical Position<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"7470\" data-end=\"7699\">For the upward stroke, use a slightly lower current than for the flat position. Apply a small triangle or lowercase \"e\" motion to hold the pool. For the downward stroke, it is only recommended for electrodes with specific thicknesses as per the WPS.<\/p><h3 data-start=\"7701\" data-end=\"7726\"><span class=\"ez-toc-section\" id=\"Posisi_di_atas_kepala\"><\/span>Above Head Position<span class=\"ez-toc-section-end\"><\/span><\/h3><p data-start=\"7727\" data-end=\"7872\">Decrease the current decisively, shorten the arc, and use narrow stringers. Focus on pool control and slag cleaning rhythm between passes.<\/p><p data-start=\"7874\" data-end=\"8094\"><strong data-start=\"7874\" data-end=\"7903\">Common mistakes per position<\/strong><\/p><ul><li data-start=\"7874\" data-end=\"8094\">Porosity due to arc being too long or dirty surface.<\/li><li data-start=\"7874\" data-end=\"8094\">Undercut due to excessive current or excessive movement speed.<\/li><li data-start=\"7874\" data-end=\"8094\">Lack of fusion due to current being too low or angle being wrong.<\/li><\/ul><h2><span class=\"ez-toc-section\" id=\"Kesimpulan\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2><p>SMAW welding excels for general fabrication, maintenance, and field work due to its simple equipment and flexibility in many positions.<\/p><p>Quality is determined by proper electrode selection, current setting according to diameter, short and stable arc length, consistent arc angle and speed, and slag cleaning with each pass.<\/p><p>For toughness demands use low hydrogen electrodes with orderly dry storage, while E6013 is effective for thin plates and multi-purpose work.<\/p><p>Follow polarity and WPS recommendations, run the K3 checklist, and perform short tests before production to ensure consistent and repeatable SMAW welding results.<\/p><p>If needed, consultation on electrode selection and WPS adjustment is available to help complete the job safely and efficiently.<\/p><p><a href=\"https:\/\/wa.me\/628111438833\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-8212 size-full\" src=\"https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las.webp\" alt=\"hubungi kami sekarang untuk pemesanan kawat las\" width=\"1200\" height=\"250\" srcset=\"https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las.webp 1200w, https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las-300x63.webp 300w, https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las-1024x213.webp 1024w, https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las-768x160.webp 768w, https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las-18x4.webp 18w, https:\/\/www.intanpertiwi.co.id\/wp-content\/uploads\/2025\/10\/hubungi-kami-sekarang-untuk-pemesanan-kawat-las-600x125.webp 600w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/a><\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-af6cdcc e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"af6cdcc\" 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-a04ecec wpr-stt-btn-align-fixed wpr-stt-btn-align-fixed-right elementor-widget elementor-widget-wpr-back-to-top\" data-id=\"a04ecec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wpr-back-to-top.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"wpr-stt-wrapper\"><div class='wpr-stt-btn' data-settings='{&quot;animation&quot;:&quot;fade&quot;,&quot;animationOffset&quot;:&quot;0&quot;,&quot;animationDuration&quot;:&quot;200&quot;,&quot;fixed&quot;:&quot;fixed&quot;,&quot;scrolAnim&quot;:&quot;800&quot;}'><span class=\"wpr-stt-icon\"><svg class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-660d1bc elementor-widget elementor-widget-shortcode\" data-id=\"660d1bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><\/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>","protected":false},"excerpt":{"rendered":"<p>Apa itu pengelasan SMAW? Pengelasan SMAW adalah proses las yang paling mudah ditemukan di bengkel umum dan proyek lapangan. Peralatannya ringkas, fleksibel untuk banyak posisi, dan mampu bekerja pada beragam material baja karbon. Untuk menentukan elektroda yang sesuai material, ketebalan, dan posisi kerja, gunakan panduan memilih kawat las sebagai acuan awal. Panduan ini berfokus pada kebutuhan nyata di lapangan. Anda akan mempelajari prinsip kerja pengelasan SMAW, cara memilih polaritas, panduan arus per diameter, pemetaan elektroda berdasarkan aplikasi, teknik per posisi, serta checklist K3 dan langkah troubleshooting yang bisa langsung diterapkan. Apa itu Pengelasan SMAW? Pengelasan SMAW atau Shielded Metal Arc Welding sering juga disebut las stik atau MMA. Busur listrik terbentuk antara ujung elektroda berlapis fluks dan benda kerja. Lapisan fluks meleleh lalu menghasilkan gas pelindung dan terak yang menutup kolam logam cair agar tidak terkontaminasi udara. Setelah membeku, terak dibersihkan untuk menampakkan manik las. Sumber daya yang digunakan dapat berupa arus searah ataupun arus bolak balik. Perlengkapan inti mencakup mesin las, kabel massa, stang elektroda, serta perlindungan diri yang lengkap. Komponen utama pada pengelasan SMAW Power source dengan pengaturan arus dan jika tersedia fitur bantu seperti hot start dan arc force. Holder dan kabel kerja yang terawat baik agar jatuh tegangan tidak berlebihan. Elektroda las berlapis fluks yang sesuai dengan material dan tugas pengelasan. Alat pelindung diri berupa helm las, sarung tangan, pakaian tahan panas, kacamata keselamatan, dan sepatu kerja. Prinsip perlindungan fluks Fluks melepaskan gas pelindung yang mengusir oksigen dan nitrogen dari kolam las. Fluks juga membentuk terak yang menstabilkan kolam, memperlambat pendinginan, dan membantu menghasilkan manik dengan permukaan rapi. DCEP, DCEN, dan AC pada pengelasan SMAW Pemilihan polaritas mempengaruhi penetrasi, kestabilan busur, serta kontrol kolam. DCEP Arus searah dengan elektroda positif cenderung memberi penetrasi lebih dalam dan busur yang tajam. Banyak digunakan dengan elektroda hidrogen rendah seperti E7016 dan E7018 pada sambungan yang menuntut kekuatan dan ketangguhan. DCEN Arus searah dengan elektroda negatif membuat panas lebih merata pada permukaan sehingga membantu ketika mengendalikan kolam pada pelat tipis atau saat mengejar manik yang halus. Cocok untuk beberapa elektroda jenis rutile yang mendukung DCEN. AC Arus bolak balik memberi kompromi yang baik untuk aplikasi umum dan berguna bila suplai listrik lapangan menyediakan trafo AC. Banyak kelas E6013 berjalan stabil pada AC. Panduan cepat Root atau kebutuhan penetrasi tinggi cenderung memakai DCEP. Pelat tipis dan kontrol kolam yang jinak cenderung memakai DCEN atau E6013 pada AC. Ikuti selalu rekomendasi pabrikan pada kemasan dan WPS proyek. Variabel proses yang paling berpengaruh Empat variabel berikut menentukan kualitas manik dan konsistensi sambungan pada pengelasan SMAW. Arus dan diameter elektroda Arus harus sepadan dengan diameter elektroda. Arus terlalu rendah membuat elektroda mudah lengket dan manik tinggi. Arus terlalu tinggi menimbulkan percikan, undercut, serta zona terpengaruh panas yang melebar. Tegangan busur dan panjang arc Panjang arc berkorelasi dengan tegangan efektif. Arc yang terlalu panjang membuat busur liar, percikan meningkat, dan porositas. Jaga panjang arc kira kira setara diameter inti elektroda. Kecepatan gerak dan masukan panas Masukan panas dapat ditaksir dengan pendekatan sederhana yaitu tegangan dikali arus dikali waktu per panjang. Kecepatan terlalu lambat meningkatkan masukan panas dan risiko distorsi. Kecepatan terlalu cepat berpotensi menimbulkan kurang fusi. Sudut dan teknik manipulasi Gunakan sudut dorong atau tarik sekitar lima sampai lima belas derajat. Pilih stringer bead untuk kontrol penetrasi dan minimisasi terak terjebak. Gunakan weave seperlunya pada posisi menanjak atau ketika lebar sambungan menuntut pengisian merata. Tabel cepat diameter dan arus rekomendasi Angka di bawah adalah rentang umum untuk elektroda rutile dan hidrogen rendah pada baja karbon. Selalu cek label pabrikan serta lakukan uji pendek di benda uji sebelum produksi. Diameter (mm) Arus (A) Ketebalan bahan (mm) 2.0 40 sampai 70 1 sampai 2 2.6 60 sampai 100 2 sampai 4 3.2 90 sampai 130 3 sampai 8 4.0 130 sampai 180 6 sampai 12 5.0 170 sampai 240 lebih dari 10 Catatan praktik Jika mesin memiliki hot start dan arc force, naikkan sedikit hot start agar penyalaan lebih mudah. Atur arc force secukupnya agar tidak menimbulkan percikan berlebih. Lakukan restrike pada run off tab atau area yang akan terpotong agar tidak meninggalkan cacat pada komponen. Memilih elektroda yang tepat untuk pengelasan SMAW Gunakan pemetaan berikut sebagai titik awal kemudian sesuaikan dengan WPS proyek. Baja karbon rendah dan fabrikasi umum Kelas E6013 seperti RB 26 cocok untuk pelat tipis sampai sedang, tack, serta pekerjaan serbaguna. Slag mudah lepas dan penampilan manik bersih. Dapat berjalan pada AC maupun DC. Rujukan produk RB 26 dapat dilihat di halaman produk kawat las kobe rb 26. Struktur dan sambungan yang menuntut ketangguhan Kelas hidrogen rendah seperti E7016 dan E7018 memberi ketangguhan sambungan lebih baik asalkan penanganan kering terjaga. Rujukan produk: LB 52 E7016 untuk aplikasi struktural. LB 52 18 E7018 untuk laju endapan tinggi pada posisi datar dan horizontal. LB 52U yang disukai pada pipa untuk root dan pengelasan dari satu sisi dengan kontrol kolam baik. Aplikasi pipa dengan kontrol root yang presisi Kelas selulosa tinggi umum dipakai untuk root pass pada posisi vertikal naik. Rujukan produk KOBE 6010 untuk baja karbon dan KOBE 7010S untuk kebutuhan kekuatan tarik yang lebih tinggi. Material khusus Untuk stainless dan besi cor gunakan filler yang kompatibel dengan komposisi logam dasar serta ikuti standar proyek. Lingkungan kerja harus bersih dan parameter disetel dengan disiplin. Ringkasan pemetaan cepat Aplikasi umum pelat tipis cenderung memakai E6013. Struktur dan beban dinamis cenderung memakai E7016 atau E7018 dengan disiplin pengeringan. Root pipa vertikal naik cenderung memakai E6010 atau E7010 dengan teknik keyhole. Material khusus memakai filler sesuai standar dan prosedur proyek. Baca Juga : Cara Memilih Ukuran Kawat Las RB-26 Panduan posisi pengelasan Posisi fillet satu F sampai empat F dan posisi pelat satu G sampai enam G memerlukan penyesuaian teknik agar pengelasan SMAW konsisten. Posisi datar Pegang sudut sekitar lima sampai sepuluh derajat arah tarik. Gunakan stringer bead untuk meminimalkan terak terjebak. Atur arus sesuai diameter agar kolam tidak terlalu cair. Posisi horizontal Jaga kolam agar tidak mengalir turun dengan sedikit sudut ke atas. Gunakan gerak kecil berbentuk jangkar untuk menutup akar dan mengikat kedua sisi. Posisi<\/p>","protected":false},"author":1,"featured_media":8577,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-8555","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-panduan"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pengelasan SMAW: Prinsip Kerja dan Pemilihan Elektroda<\/title>\n<meta name=\"description\" content=\"Apa itu Pengelasan SMAW? 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