{"id":2990,"date":"2025-06-17T10:59:19","date_gmt":"2025-06-17T02:59:19","guid":{"rendered":"https:\/\/www.rbymetal.com\/?post_type=product&p=2990"},"modified":"2025-06-17T11:00:05","modified_gmt":"2025-06-17T03:00:05","slug":"a572-s355jr-round-steel-bar","status":"publish","type":"product","link":"https:\/\/www.rbymetal.com\/index.php\/product\/a572-s355jr-round-steel-bar\/","title":{"rendered":"A572\/S355JR Round Steel Bar"},"content":{"rendered":"

A572\/S355JR Round Steel Bar Description<\/strong><\/b><\/h2>\n

A572\u00a0steel bar\u00a0is\u00a0made of\u00a0a low-carbon, low-alloy high-strength steel\u00a0employing the\u00a0electric furnace steelmaking technology.\u00a0So the\u00a0main component is scrap iron.\u00a0Resulting from its\u00a0reasonable composition design and strict process control, A572 steel\u00a0bar\u00a0is widely favored for\u00a0high purity and excellent performance.\u00a0Its\u00a0molten steel pouring manufacturing method\u00a0not only gives the steel\u00a0coil\u00a0good density and uniformity, but also ensures that the steel\u00a0bar\u00a0has superior mechanical properties after cooling.\u00a0A572 carbon steel bar is widely used in construction, bridges, heavy machinery and other fields. At the same time, it shows outstanding performance in welding, forming and corrosion resistance with its low carbon and low alloy characteristics.<\/p>\n

\nProduct Parameters<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Product Name<\/td>\nA572\/S355JR Round Steel Bar<\/td>\n<\/tr>\n
Standard<\/td>\nEN\/DIN\/JIS\/ASTM\/BS\/ASME\/AISI, etc.<\/td>\n<\/tr>\n
Common Round Bar Specifications<\/td>\n3.0-50.8 mm,\u00a0Over 50.8-300mm<\/td>\n<\/tr>\n
Flat Steel\u00a0Common\u00a0Specifications<\/td>\n6.35×12.7mm, 6.35×25.4mm, 12.7×25.4mm<\/td>\n<\/tr>\n
Hexagon Bar\u00a0Common\u00a0Specifications<\/td>\nAF5.8mm-17mm<\/td>\n<\/tr>\n
Square Bar\u00a0Common\u00a0Specifications<\/td>\nAF2mm-14mm, AF6.35mm,\u00a09.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm<\/td>\n<\/tr>\n
Length<\/td>\n1-6meters,\u00a0Size Accept Custom<\/td>\n<\/tr>\n
Diameter(mm)<\/td>\nHot Rolling Round Bar<\/td>\n25-600<\/td>\nCold Rolling\u00a0Square Bar<\/td>\n6-50.8<\/td>\n<\/tr>\n
Hot Rolling\u00a0Square Bar<\/td>\n21-54<\/td>\nCold Rolling\u00a0Hexagon Bar<\/td>\n9.5-65<\/td>\n<\/tr>\n
Cold Rolling\u00a0Round bar<\/td>\n6-101.6<\/td>\nForged Rebar<\/td>\n200-1000<\/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\n
A572<\/td>\nC<\/td>\nMn<\/td>\nP<\/td>\nS<\/td>\nSi<\/td>\n<\/tr>\n
Grade\u00a042<\/td>\n0.21<\/td>\n1.35<\/td>\n0.03<\/td>\n0.03<\/td>\n0.15-0.4<\/td>\n<\/tr>\n
Grade\u00a050<\/td>\n0.23<\/td>\n1.35<\/td>\n0.03<\/td>\n0.03<\/td>\n0.15-0.4<\/td>\n<\/tr>\n
Grade\u00a060<\/td>\n0.26<\/td>\n1.35<\/td>\n0.03<\/td>\n0.03<\/td>\n0.40<\/td>\n<\/tr>\n
Grade\u00a065<\/td>\n0.23-0.26<\/td>\n1.35-1.65<\/td>\n0.03<\/td>\n0.03<\/td>\n0.40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

Mechanical Properties<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n
A572<\/td>\nYield Strength\u00a0(Ksi)<\/td>\nTensile Strength\u00a0(Ksi)<\/td>\nElongation\u00a0%\u00a08 inches<\/td>\n<\/tr>\n
Grade\u00a042<\/td>\n42<\/td>\n60<\/td>\n20<\/td>\n<\/tr>\n
Grade\u00a050<\/td>\n50<\/td>\n65<\/td>\n18<\/td>\n<\/tr>\n
Grade\u00a060<\/td>\n60<\/td>\n75<\/td>\n16<\/td>\n<\/tr>\n
Grade\u00a065<\/td>\n65<\/td>\n80<\/td>\n15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

Physical Performance<\/strong><\/b><\/p>\n\n\n\n\n
Physical Performance<\/td>\nMetric<\/td>\nImperial<\/td>\n<\/tr>\n
Density<\/td>\n7.80 g\/cc<\/td>\n0.282 lb\/in\u00b3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

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

ASTM A572 carbon steel low-alloy steel is widely used as bridge panels, support plates, mechanical mounting plates, etc. for construction equipment, transmission towers, racks and other equipment.<\/p>\n

\n

Equivalent Material<\/strong><\/b><\/p>\n\n\n\n\n\n
EU<\/td>\nGerman Standard<\/td>\nJapanese Standard<\/td>\nFrench Standard<\/td>\nBritish Standard<\/td>\nCanada<\/td>\nItaly<\/td>\nSpain<\/td>\nNational Standard<\/td>\nInternational<\/td>\nPortugal<\/td>\nIndia<\/td>\n<\/tr>\n
EN<\/td>\nDIN,WNr<\/td>\nJIS<\/td>\nAFNOR<\/td>\nBS<\/td>\nHG<\/td>\nUNI<\/td>\nUNE<\/td>\nGB<\/td>\nISO<\/td>\nNP<\/td>\nIS<\/td>\n<\/tr>\n
S355JR<\/td>\nSt52-3<\/td>\nSM490A<\/td>\nE36-2<\/td>\n50B<\/td>\n350W<\/td>\nFe510B<\/td>\nAE355B<\/td>\nQ345B<\/td>\nE355C<\/td>\nFE510-B<\/td>\nIS961<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h2>\n","protected":false},"excerpt":{"rendered":"

A36 is a low-carbon steel containing manganese, phosphorus, sulfur, silicon and copper. A36 has good weldability and high yield strength. A36 carbon steel bar is commonly used as a variety of structural steel parts.<\/p>\n","protected":false},"featured_media":2931,"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":[31,50,29],"product_tag":[],"class_list":{"0":"post-2990","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-carbon-steel","7":"product_cat-carbon-steel-bar-rod","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":50,"label":"Carbon Steel Bar\/Rod"},{"value":29,"label":"Product"}]},"featured_image_src_large":["https:\/\/www.rbymetal.com\/wp-content\/uploads\/2025\/06\/10005-2.jpg",220,220,false],"author_info":[],"comment_info":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product\/2990","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\/2931"}],"wp:attachment":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/media?parent=2990"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=2990"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=2990"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=2990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}