{"id":7586,"date":"2026-03-30T09:25:27","date_gmt":"2026-03-30T09:25:27","guid":{"rendered":"https:\/\/www.shandongruiying.com\/?post_type=product&p=7586"},"modified":"2026-03-30T09:30:17","modified_gmt":"2026-03-30T09:30:17","slug":"carbon-steel-plate-2","status":"publish","type":"product","link":"https:\/\/www.shandongruiying.com\/hi\/product\/carbon-steel-plate-2\/","title":{"rendered":"\u0915\u093e\u0930\u094d\u092c\u0928 \u0938\u094d\u091f\u0940\u0932 \u092a\u094d\u0932\u0947\u091f"},"content":{"rendered":"

Q235 is a widely used carbon structural steel in China, specified by the national standard GB\/T 700-2006. The designation “Q” stands for yield strength, and “235” refers to its minimum yield strength of 235 MPa (for thickness \u2264 16 mm). It is also known as mild steel or common steel plate, with excellent weld\u00a0ability, form\u00a0ability, and cost-effectiveness, making it the most common material in construction, machinery, and general engineering. It is equivalent to ASTM A36 (USA) and S235JR (Europe) in international standards.<\/p>\n\n

    \n
  1. Grade Classification (Quality Grades)<\/strong><\/li>\n<\/ol>\n

    Q235 is divided into four quality grades based on chemical composition and impact performance, with increasing purity and toughness from A to D:<\/p>\n

      \n
    • Q235A: No impact test required; highest S content; suitable for non-critical static structures.<\/li>\n
    • Q235B: Impact test at 20\u00b0C (\u226527 J); most widely used for general structural applications.<\/li>\n
    • Q235C: Impact test at 0\u00b0C (\u226527 J); lower S\/P content; for cold environments.<\/li>\n
    • Q235D: Impact test at -20\u00b0C (\u226527 J); lowest S\/P content; for extreme cold and critical structures.<\/li>\n<\/ul>\n
        \n
      1. Core Characteristics<\/strong><\/li>\n<\/ol>\n
          \n
        • Chemical Composition: Low carbon (\u226422%), moderate Mn, low S\/P; good weldability and machinability.<\/li>\n
        • Mechanical Properties: Balanced strength and ductility; yield strength decreases with increasing thickness.<\/li>\n
        • Physical Properties: High density, standard elastic modulus, and good thermal conductivity.<\/li>\n
        • Processing: Easy to cut, bend, weld, and machine; suitable for hot rolling and cold forming.<\/li>\n<\/ul>\n
            \n
          1. Main Applications<\/strong><\/li>\n<\/ol>\n
              \n
            • Construction: Steel frames, beams, columns, scaffolding, bridge components.<\/li>\n
            • Machinery: General parts, chassis, brackets, gears, and pressure vessels.<\/li>\n
            • Transportation: Vehicle frames, ship hulls, and railway components.<\/li>\n
            • Other: Pipes, storage tanks, and general engineering structures.<\/li>\n<\/ul>\n
              Chemical Composition (Mass Fraction, \u2264%)<\/strong><\/h5>\n\n\n\n\n\n\n\n
              \u0917\u094d\u0930\u0947\u0921<\/b><\/strong><\/td>\n\u0938\u0940<\/b><\/strong><\/td>\n\u0938\u093e<\/b><\/strong><\/td>\n\u090f\u092e\u090f\u0928<\/b><\/strong><\/td>\n\u092a\u0940<\/b><\/strong><\/td>\n\u090f\u0938<\/b><\/strong><\/td>\n<\/tr>\n
              Q235A<\/td>\n0.22<\/td>\n0.35<\/td>\n1.40<\/td>\n0.045<\/td>\n0.050<\/td>\n<\/tr>\n
              Q235B<\/td>\n0.20<\/td>\n0.35<\/td>\n1.40<\/td>\n0.045<\/td>\n0.045<\/td>\n<\/tr>\n
              Q235C<\/td>\n0.17<\/td>\n0.35<\/td>\n1.40<\/td>\n0.040<\/td>\n0.040<\/td>\n<\/tr>\n
              Q235D<\/td>\n0.17<\/td>\n0.35<\/td>\n1.40<\/td>\n0.035<\/td>\n0.035<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
              Physical Properties (Typical Values)<\/strong><\/h5>\n\n\n\n\n\n\n\n\n\n\n
              Property<\/b><\/strong><\/td>\nValue<\/b><\/strong><\/td>\n<\/tr>\n
              Density<\/td>\n7.85 g\/cm\u00b3<\/td>\n<\/tr>\n
              Elastic Modulus (E)<\/td>\n206 GPa<\/td>\n<\/tr>\n
              Poisson\u2019s Ratio (\u03bd)<\/td>\n0.28<\/td>\n<\/tr>\n
              Coefficient of Thermal Expansion<\/td>\n12\u00d710\u207b\u2076 \/\u00b0C<\/td>\n<\/tr>\n
              Thermal Conductivity<\/td>\n50 W\/(m\u00b7K)<\/td>\n<\/tr>\n
              Melting Point<\/td>\n1420\u20131460\u00b0C<\/td>\n<\/tr>\n
              Electrical Resistivity<\/td>\n0.15 \u03bc\u03a9\u00b7m (20\u00b0C)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
              Dimensions (Common Range)<\/strong><\/h5>\n\n\n\n\n\n\n\n
              Parameter<\/b><\/strong><\/td>\nRange<\/b><\/strong><\/td>\n<\/tr>\n
              \u092e\u094b\u091f\u093e\u0908<\/td>\n1.5\u2013100 mm<\/td>\n<\/tr>\n
              \u091a\u094c\u0921\u093c\u093e\u0908<\/td>\n1000\u20132500 mm<\/td>\n<\/tr>\n
              \u0932\u0902\u092c\u093e\u0908<\/td>\n2000\u201312000 mm<\/td>\n<\/tr>\n
              Standard Sizes<\/td>\n1220\u00d72440 mm, 1500\u00d76000 mm, 2000\u00d76000 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"

              Q235 is a widely used carbon structural steel in China, specified by the national standard GB\/T 700-2006. The designation “Q” stands for yield strength, and “235” refers to its minimum yield strength of 235 MPa (for thickness \u2264 16 mm).<\/p>","protected":false},"featured_media":7595,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Q235 Carbon Structural Steel Plate | Mild Steel Equivalent to ASTM A36 & S235JR","_seopress_titles_desc":"Q235 carbon structural steel is a widely used mild steel in China under GB\/T 700-2006 standard. With a minimum yield strength of 235 MPa, it offers excellent weldability, formability, and cost efficiency, widely applied in construction, machinery, and engineering projects.","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"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":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[107],"product_tag":[],"class_list":{"0":"post-7586","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-carbon-steel-plate","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","10":"ast-product-gallery-layout-horizontal-slider","11":"ast-product-gallery-with-no-image","12":"ast-product-tabs-layout-horizontal","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"uagb_featured_image_src":{"full":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55.jpg",600,600,false],"thumbnail":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55-150x150.jpg",150,150,true],"medium":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55-300x300.jpg",300,300,true],"medium_large":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55.jpg",600,600,false],"large":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55.jpg",600,600,false],"1536x1536":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55.jpg",600,600,false],"2048x2048":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55.jpg",600,600,false],"trp-custom-language-flag":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55-12x12.jpg",12,12,true],"woocommerce_thumbnail":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55-300x300.jpg",300,300,true],"woocommerce_single":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55.jpg",600,600,false],"woocommerce_gallery_thumbnail":["https:\/\/www.shandongruiying.com\/wp-content\/uploads\/2026\/03\/55-100x100.jpg",100,100,true]},"uagb_author_info":{"display_name":"Shandong Ruiying Import and Export Trading Co., Ltd.","author_link":"https:\/\/www.shandongruiying.com\/hi\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"Q235 is a widely used carbon structural steel in China, specified by the national standard GB\/T 700-2006. The designation \"Q\" stands for yield strength, and \"235\" refers to its minimum yield strength of 235 MPa (for thickness \u2264 16 mm).","_links":{"self":[{"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/product\/7586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/media\/7595"}],"wp:attachment":[{"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/media?parent=7586"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/product_brand?post=7586"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/product_cat?post=7586"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.shandongruiying.com\/hi\/wp-json\/wp\/v2\/product_tag?post=7586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}