{"id":2828,"date":"2025-06-17T09:20:44","date_gmt":"2025-06-17T01:20:44","guid":{"rendered":"https:\/\/www.rbymetal.com\/?post_type=product&p=2828"},"modified":"2025-06-17T09:21:30","modified_gmt":"2025-06-17T01:21:30","slug":"din-1629-seamless-steel-pipe","status":"publish","type":"product","link":"https:\/\/www.rbymetal.com\/index.php\/product\/din-1629-seamless-steel-pipe\/","title":{"rendered":"DIN 1629 Seamless Steel Pipe"},"content":{"rendered":"

DIN 1629 Seamless Steel Pipe Description<\/strong><\/b><\/h2>\n

DIN 1629 seamless steel pipes are circular tubes and pipes made up of non alloy materials for special quality requirements. There are three major grades as DIN 1629 ST 37.0, 44.0 and 52.0. The DIN 1629 Pipe grades differ in the material composition and the mechanical properties. The applications of the different grades of the DIN 1629 include manufacturing pipeline, vessels, equipment, pipe fittings and other applications.\u00a0The DIN 1629\u00a0seamless steel\u00a0pipe can be hot rolled, cold worked, stress relieved, annealed or normalized for heat treatment to improve the hardness of the products.<\/p>\n

\nProduct Parameters<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n
Product Name<\/td>\nDIN 1629 Seamless Steel Pipe<\/td>\n<\/tr>\n
Standard<\/td>\nEN\/DIN\/JIS\/ASTM\/BS\/ASME\/AISI etc.<\/td>\n<\/tr>\n
Outer Diameter<\/td>\nSeamless:\u00a01\/4″-36″<\/td>\nWelding:\u00a021.3mm-3620mm<\/td>\n<\/tr>\n
Round Tube:\u00a01\/2″-10″<\/td>\nSquare Tube\/Rectangular Tube:\u00a015x15mm-400x600mm<\/td>\n<\/tr>\n
Wall Thickness<\/td>\nSeamless:\u00a01.25mm-50mm<\/td>\nWelding:\u00a01.65mm-65mm<\/td>\n<\/tr>\n
Length<\/td>\n3-12 meters, Support customization<\/td>\n<\/tr>\n
Surface\u00a0Process<\/td>\nBright, Polished, Black<\/td>\n<\/tr>\n
Other Services<\/td>\nMachining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

Chemical Composition<\/strong><\/b><\/p>\n\n\n\n\n\n\n
Grade<\/td>\nMaterials\u00a0No.<\/td>\nDeoxidation Yype<\/td>\nC<\/td>\nP<\/td>\nS<\/td>\nN\u00b9)<\/td>\n<\/tr>\n
St37<\/td>\n1.0254<\/td>\nR<\/td>\n0.17<\/td>\n0.040<\/td>\n0.040<\/td>\n0.009 \u00b2)<\/td>\n<\/tr>\n
St44<\/td>\n1.0255<\/td>\nR<\/td>\n0.21<\/td>\n0.040<\/td>\n0.040<\/td>\n0.009 \u00b2)<\/td>\n<\/tr>\n
St52<\/td>\n1.0421<\/td>\nRR<\/td>\n0.22<\/td>\n0.040<\/td>\n0.035<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

Mechanical Properties<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n
DIN 1629<\/td>\nYield Strength (Wall Thickness\/mm)<\/td>\nTensile Strength\u00a0N\/\u00b2 mm<\/td>\nElongation\u00a0(%) A5<\/td>\n<\/tr>\n
Grade<\/td>\nMaterial No.<\/td>\n<16<\/td>\n16-40<\/td>\n40-65<\/td>\nVertical<\/td>\nTransverse<\/td>\n<\/tr>\n
St37<\/td>\n1.0254<\/td>\n235<\/td>\n225<\/td>\n216<\/td>\n350\u00b2) to 480<\/td>\n25<\/td>\n23<\/td>\n<\/tr>\n
St44<\/td>\n1.0256<\/td>\n275<\/td>\n265 \u00b9)<\/td>\n255 \u00b9)<\/td>\n420\u00b2) to 550<\/td>\n21<\/td>\n19<\/td>\n<\/tr>\n
St52<\/td>\n1.0421<\/td>\n355<\/td>\n345<\/td>\n335<\/td>\n500\u00b2) to 650<\/td>\n21<\/td>\n19<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

Scope of Application<\/strong><\/b><\/p>\n

Seamless steel pipe applications are: chemical plants, vessels, pipeline engineering and general mechanical engineering.<\/p>\n","protected":false},"excerpt":{"rendered":"

DIN 1629 seamless steel pipe has three main grades of St37.0, St44.0, St52.0. Generally, the DIN 1629 standard is not limited to the working pressure value, and the working temperature is limited to below 300 \u2103.<\/p>\n","protected":false},"featured_media":2817,"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[],"product_cat":[31,48,29],"product_tag":[],"class_list":{"0":"post-2828","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-carbon-steel","7":"product_cat-carbon-steel-pipe-tube","8":"product_cat-product","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple","14":"entry","15":"content-bg","16":"loop-entry"},"taxonomy_info":{"product_cat":[{"value":31,"label":"Carbon Steel"},{"value":48,"label":"Carbon Steel Pipe\/Tube"},{"value":29,"label":"Product"}]},"featured_image_src_large":["https:\/\/www.rbymetal.com\/wp-content\/uploads\/2025\/06\/Hfdad659b8a9546789258f94975e6309-1024x1024.jpg",1024,1024,true],"author_info":[],"comment_info":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product\/2828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/media\/2817"}],"wp:attachment":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/media?parent=2828"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=2828"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=2828"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=2828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}