{"id":18708,"date":"2026-01-25T00:50:19","date_gmt":"2026-01-24T16:50:19","guid":{"rendered":"https:\/\/www.jt-petro.com\/?p=18708"},"modified":"2026-02-03T17:35:21","modified_gmt":"2026-02-03T09:35:21","slug":"line-pipe","status":"publish","type":"post","link":"https:\/\/www.jt-petro.com\/?p=18708","title":{"rendered":"Line pipe"},"content":{"rendered":"<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">JT-PETRO company can supply the Line pipe includes SSAW, LSAW, ERW and seamless pipe. At present, China has possessed advanced technologies and equipments in manufacture, inspection and testing of line pipe and some products have reached the world class, such as large OD line pipe, high grade line pipe and sour service line pipe.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>\u00a0<\/strong><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>Application<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Oil and gas transportation pipeline<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Water and other fluid pipeline<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Mineral slurry pipeline<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>\u00a0Product Type<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Spiral seam submerged arc welded (SSAW) pipe<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Longitudinal seam submerged arc welded (LSAW) pipe<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Longitudinal seam electric resistance welded (ERW) pipe<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Seamless line pipe<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>\u00a0Features<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">High precision in size and shape<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Appropriate carbon content<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Excellent weldability<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Excellent comprehensive mechanical properties<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">High impact toughness at low temperature<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>\u00a0Specifications<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">API Spec 5L \u00a0\u00a0Specification for Line Pipe<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">ISO 3183 \u00a0\u00a0Petroleum and Natural Gas Industries-Steel Pipe for Pipeline Transportation Systems<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">DIN 17172 \u00a0\u00a0Steel Pipes for Pipe Lines for the Transport of Combustible Fluids and Gases<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\u0413OCT 20295 \u00a0\u00a0Technical Conditions of Welded Pipe for Oil and Gas Pipeline<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Other related specifications and standards<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18652\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-scaled.webp\" alt=\"\" width=\"1212\" height=\"909\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-scaled.webp 2560w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-600x450.webp 600w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-1024x768.webp 1024w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-768x576.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-1536x1152.webp 1536w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/IMG_0162-2048x1536.webp 2048w\" sizes=\"auto, (max-width: 1212px) 100vw, 1212px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong><span style=\"font-size: 20px;\">Process Flowchart of SSAW Pipe<\/span><\/strong><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18905\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481.webp\" alt=\"\" width=\"2460\" height=\"1534\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481.webp 2460w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481-600x374.webp 600w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481-1024x639.webp 1024w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481-768x479.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481-1536x958.webp 1536w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SSAW-e1769746176481-2048x1277.webp 2048w\" sizes=\"auto, (max-width: 2460px) 100vw, 2460px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\"><strong><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif;\">Process Flowchart of ERW Pipe<\/span><\/strong><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18906\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE.webp\" alt=\"\" width=\"1840\" height=\"2376\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE.webp 1840w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE-465x600.webp 465w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE-793x1024.webp 793w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE-768x992.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE-1189x1536.webp 1189w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/ERW-PIPE-1586x2048.webp 1586w\" sizes=\"auto, (max-width: 1840px) 100vw, 1840px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong><span style=\"font-size: 20px;\">Process Flowchart of Seamless Line Pipe<\/span><\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18907\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SEAMLESS.webp\" alt=\"\" width=\"1774\" height=\"1041\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SEAMLESS.webp 1774w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SEAMLESS-600x352.webp 600w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SEAMLESS-1024x601.webp 1024w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SEAMLESS-768x451.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/SEAMLESS-1536x901.webp 1536w\" sizes=\"auto, (max-width: 1774px) 100vw, 1774px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000;\"><strong><b>Line Pipe Coating<\/b><\/strong><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The coating system is widely used in oil and gas pipe line construction, providing excellent corrosion resistance, good performance of anti-friction, anti mechanical damage and heat insulation, and long service life.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Generally, line pipe coating includes external coating and internal coating. The external coating is applied to improve the corrosion resistane and mechanical property and to prevent the heat radiation of line pipe. The internal coating provides a smooth internal surface with the cured and mechanically robust anticorrosion coat which improves flow rates, decreases fluid resistance, reduces pipe cleaning times and prolongs service life of transportation pipe line.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">In the mid-1990s, China imported complete advanced sets of pipe coating lines from Dutch, US, Australia and Germany. Now, the coatings made in China have been used for some main oil and gas pipelines at home and abroad.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">External Coating for Line Pipe<\/span><\/p>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\u00a0Product Type<\/span><\/strong><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Single-layer fusion epoxy power (FBE) external coating<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Dual-layer fusion epoxy power (2FBE) external coating<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Dual-layer polythene \/ polypropylene (2PE\/PP) external coating<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Three-layer polythene \/ polypropylene (3PE\/PP) external coating<\/span><\/li>\n<\/ul>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\u00a0Features<\/span><\/strong><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">High adhesion<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Good electric insulation<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Excellent water proof and electrochemical corrosion resistane<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">High strength and good anti mechanical damage ability<\/span><\/li>\n<\/ul>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Specifications<\/span><\/strong><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">DIN 30670 \u00a0\u00a0\u00a0Polyethylene Coating for Steel Pipes and Fittings<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">DIN 30678 \u00a0\u00a0\u00a0Polypropylene Coating of Steel Tubes<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">NF A49-710 \u00a0\u00a0\u00a0External Triple-layer Polyethylene Based Coating Application by Extrusion<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">CSA Z245.20 \u00a0\u00a0\u00a0External Fusion Bond Epoxy Coating for Steel Pipe<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Other related specifications and standards<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong><span style=\"font-size: 20px;\">Process Flowchart of 3PE\/PP Coating<\/span><\/strong><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18908\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/3PE-PP.webp\" alt=\"\" width=\"1678\" height=\"1056\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/3PE-PP.webp 1678w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/3PE-PP-600x378.webp 600w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/3PE-PP-1024x644.webp 1024w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/3PE-PP-768x483.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/3PE-PP-1536x967.webp 1536w\" sizes=\"auto, (max-width: 1678px) 100vw, 1678px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18709\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-scaled.webp\" alt=\"\" width=\"1810\" height=\"2560\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-scaled.webp 1810w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-424x600.webp 424w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-724x1024.webp 724w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-768x1086.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-1086x1536.webp 1086w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_04-1448x2048.webp 1448w\" sizes=\"auto, (max-width: 1810px) 100vw, 1810px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18710\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-scaled.webp\" alt=\"\" width=\"1810\" height=\"2560\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-scaled.webp 1810w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-424x600.webp 424w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-724x1024.webp 724w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-768x1086.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-1086x1536.webp 1086w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_05-1448x2048.webp 1448w\" sizes=\"auto, (max-width: 1810px) 100vw, 1810px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18711\" src=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-scaled.webp\" alt=\"\" width=\"1810\" height=\"2560\" srcset=\"https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-scaled.webp 1810w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-424x600.webp 424w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-724x1024.webp 724w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-768x1086.webp 768w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-1086x1536.webp 1086w, https:\/\/www.jt-petro.com\/wp-content\/uploads\/2026\/01\/project-photos_06-1448x2048.webp 1448w\" sizes=\"auto, (max-width: 1810px) 100vw, 1810px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>JT-PETRO company can supply the Line pipe includes SSAW [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18652,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118],"tags":[],"class_list":["post-18708","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tubing-casing-pipeline-products"],"_links":{"self":[{"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/posts\/18708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18708"}],"version-history":[{"count":5,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/posts\/18708\/revisions"}],"predecessor-version":[{"id":19070,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/posts\/18708\/revisions\/19070"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=\/wp\/v2\/media\/18652"}],"wp:attachment":[{"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jt-petro.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}