{"id":4083,"date":"2017-11-15T08:04:00","date_gmt":"2017-11-15T08:04:00","guid":{"rendered":"https:\/\/zhishangsteel.com\/?p=4083"},"modified":"2021-11-19T09:37:42","modified_gmt":"2021-11-19T09:37:42","slug":"grade-representation","status":"publish","type":"post","link":"https:\/\/baowusteelcompany.com\/grade-representation.html","title":{"rendered":"Grade representation"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4083\" class=\"elementor elementor-4083\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b064839 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b064839\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b087817\" data-id=\"b087817\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-689d05c3 elementor-widget elementor-widget-heading\" data-id=\"689d05c3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Grade representation<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21d44a8b elementor-widget elementor-widget-post-info\" data-id=\"21d44a8b\" data-element_type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-c6921fe elementor-inline-item\" itemprop=\"author\">\n\t\t\t\t\t\t<a href=\"https:\/\/baowusteelcompany.com\/author\/infostainlesteel-cn-com\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-user-circle\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-author\">\n\t\t\t\t\t\t\t\t\t\tChina BaoWu Steel\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-4120b71 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/baowusteelcompany.com\/2017\/11\/15\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-calendar\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\tNovember 15, 2017\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-f64ceae elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-clock\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-time\">\n\t\t\t\t\t\t\t\t\t\t8:04 am\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-d6026ac elementor-inline-item\" itemprop=\"commentCount\">\n\t\t\t\t\t\t<a href=\"https:\/\/baowusteelcompany.com\/grade-representation.html#respond\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-comment-dots\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-comments\">\n\t\t\t\t\t\t\t\t\t\tNo Comments\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c5485e elementor-widget elementor-widget-heading\" data-id=\"4c5485e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Common Japanese steel grades for general and mechanical structural steel<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4615bb6f elementor-widget elementor-widget-text-editor\" data-id=\"4615bb6f\" data-element_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<p>1, Japanese steel (JIS series) in the ordinary structural steel grade consists of three parts: the first part indicates the material, such as S (Steel) for steel, F (Ferrum) for iron; the second part indicates the different shapes, types, uses, such as P (Plate) for plate, T (Tube) for tube, K (Kogu) for tool; the third part indicates the characteristics of the number, generally the minimum tensile strength. For example, SS400 &#8211; the first S indicates steel (Steel), the second S indicates &#8220;structure&#8221; (Structure), 400 is the lower limit of tensile strength 400 MPa, the overall means the tensile strength of 400 MPa ordinary Structural steel.<\/p><p>2, SPHC &#8211; the first S for the abbreviation of Steel, P for the abbreviation of Plate, H for the abbreviation of Heat, C for the abbreviation of Commercial, the whole indicates the general use of hot-rolled steel plates and strips.<\/p><p>3\u3001SPHD &#8211; indicates hot-rolled steel plates and strips for stamping.<\/p><p>4\u3001SPHE &#8212; indicates hot rolled steel sheets and strips for deep drawing.<\/p><p>5, SPCC &#8211; indicates cold-rolled carbon steel sheet and strip for general use, equivalent to Chinese Q195-215A grade. The third letter C is the abbreviation of cold Cold. Need to ensure the tensile test, add T at the end of the grade for SPCCT.<\/p><p>6, SPCD &#8211; indicates cold-rolled carbon steel sheet and strip for stamping, equivalent to China 08AL (13237) high-quality carbon structural steel.<\/p><p>7, SPCE &#8211; indicates cold-rolled carbon steel sheet and strip for deep drawing, equivalent to China 08AL (5213) deep drawing steel. When non-aging is required, add N to the end of the grade for SPCEN.<\/p><p>Cold-rolled carbon steel sheet and strip tempering designations: A for annealed condition, S for standard tempering, 8 for 1\/8 hard, 4 for 1\/4 hard, 2 for 1\/2 hard, 1 for hard.<\/p><p>Surface finishing code: D for the non-glossy finish, B for a bright finish. For example, SPCC-SD indicates the standard tempered, non-glossy finished cold-rolled carbon sheet for general use. Another example is SPCCT-SB, which means standard tempered, bright finished, cold-rolled carbon sheet with guaranteed mechanical properties.<\/p><p>8, JIS mechanical structural steel grades are expressed as follows<\/p><p>S + carbon content + letter designation (C, CK), where the carbon content with the middle value \u00d7 100, the letter C: said carbon K: said carburized steel. For example, the carbon content of carbon knotted coil S 20C is 0.18-0.23%.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8cb185b elementor-widget elementor-widget-image\" data-id=\"8cb185b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/baowusteelcompany.com\/wp-content\/uploads\/2021\/11\/Grade-representation.jpg\" class=\"attachment-large size-large wp-image-4171\" alt=\"Grade representation\" srcset=\"https:\/\/baowusteelcompany.com\/wp-content\/uploads\/2021\/11\/Grade-representation.jpg 800w, https:\/\/baowusteelcompany.com\/wp-content\/uploads\/2021\/11\/Grade-representation-300x225.jpg 300w, https:\/\/baowusteelcompany.com\/wp-content\/uploads\/2021\/11\/Grade-representation-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb861ad elementor-widget elementor-widget-heading\" data-id=\"cb861ad\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">China and Japan's silicon steel sheet grade representation<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31a9448 elementor-widget elementor-widget-text-editor\" data-id=\"31a9448\" data-element_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<h6>1\u3001China&#8217;s grade representation method.<\/h6><p>(1) cold-rolled non-oriented silicon steel strip (sheet)<\/p><p>Expression method: DW + iron loss value (at a frequency of 50HZ, the waveform is the sinusoidal magnetic inductance peak value of 1.5T per unit weight iron loss.) 100 times of the thickness value + 100 times of the thickness value.<\/p><p>For example, DW470-50 is cold-rolled non-oriented silicon steel with an iron loss value of 4.7w\/kg and thickness of 0.5mm, and now the new model is 50W470.<\/p><p>(2) Cold-rolled oriented silicon steel strip (sheet)<\/p><p>Expression method: DQ + iron loss value (in the frequency of 50HZ, the waveform is the sinusoidal magnetic inductance peak value of 1.7T unit weight iron loss value.) 100 times of the thickness value + 100 times of the thickness value. Sometimes G is added after the iron loss value to indicate high magnetic susceptibility.<\/p><p>For example, DQ133-30 is a cold-rolled oriented silicon steel strip (sheet) with an iron loss value of 1.33 and thickness of 0.3mm, now the new model is 30Q133.<\/p><p>(3) Hot-rolled silicon steel plate<\/p><p>Hot-rolled silicon steel plate with DR, according to the amount of silicon content into low silicon steel (silicon content \u2264 2.8%), high silicon steel (silicon content &gt; 2.8%).<\/p><p>Expression method: 100 times of DR + iron loss value (the iron loss value per unit weight when the maximum value of magnetic induction is 1.5T with 50HZ repeated magnetization and sinusoidal variation) + 100 times of thickness value. For example, DR510-50 is a hot-rolled silicon steel plate with an iron loss value of 5.1 and a thickness of 0.5 mm.<\/p><p>The grade of hot-rolled silicon steel sheet for household appliances is expressed by JDR + iron loss value + thickness value, such as JDR540-50.<\/p><h6>2\u3001Japanese grades are expressed as follows<\/h6><p>(1) Cold-rolled non-oriented silicon steel strip<\/p><p>From the nominal thickness (expanded by 100 times the value) + code A + iron loss guarantee value (the frequency of 50HZ, the maximum flux density of 1.5T when the value of iron loss expanded by 100 times).<\/p><p>For example, 50A 470 means the cold-rolled non-oriented silicon steel strip with a thickness of 0.5mm and guaranteed iron loss value of \u2264 4.7.<\/p><p>(2) Cold-rolled oriented silicon steel strip<\/p><p>The nominal thickness (expanded by 100 times) + the code G: indicates ordinary material, P: indicates highly oriented material + the guaranteed value of iron loss (the value of iron loss expanded by 100 times when the frequency is 50HZ and the maximum magnetic flux density is 1.7T).<\/p><p>For example, 30G 130 means the cold-rolled oriented silicon steel strip with a thickness of 0.3mm and guaranteed iron loss value of \u2264 1.3.<\/p><h6>3\u3001common Japanese grades in general and mechanical structural steel<\/h6><p><br \/>1, Japanese steel (JIS series) in the ordinary structural steel grades consists of three parts.<\/p><p>The first part indicates the material, such as S (Steel) for steel, F (Ferrum) for iron; the second part indicates different shapes, types, uses, such as P (Plate) for plate, T (Tube) for pipe, K (Kogu) for tool; the third part indicates the characteristic numbers, generally for the minimum tensile strength. For example SS400 &#8211; the first S means steel (Steel), the second S means &#8220;structure&#8221; (Structure), 400 for the lower limit of tensile strength 400MPa, the overall tensile strength of 400 MPa ordinary Structural steel.<\/p><p>2, SPHC&#8211; The first S is the abbreviation of Steel, P is the abbreviation of Plate, H is the abbreviation of Heat, C is the abbreviation of Commercial, the whole indicates the general use of hot-rolled steel plates and strips.<\/p><p>3\u3001 SPHD&#8211; It means hot-rolled steel plate and strip for stamping.<\/p><p>4\u3001 SPHE&#8211; It means hot rolled steel sheets and strips for deep drawing.<\/p><p>5\u3001SPCC&#8211; indicates cold-rolled carbon steel sheet and strip for general use, equivalent to Chinese Q195-215A grade. The third letter C is the abbreviation of cold Cold. To ensure the tensile test, add T to SPCCT at the end of the grade.<\/p><p>6\u3001SPCD&#8211; Indicates cold-rolled carbon steel sheet and strip for stamping, equivalent to China 08AL (13237) high-quality carbon structural steel.<\/p><p>7\u3001 SPCE&#8211; Indicates cold-rolled carbon steel sheet and strip for deep drawing, equivalent to China 08AL (5213) deep drawing steel. When non-aging is required, add N to the end of the grade for SPCEN. Cold-rolled carbon steel sheet and strip tempering designations: A for annealed condition, S for standard tempering, 8 for 1\/8 hard, 4 for 1\/4 hard, 2 for 1\/2 hard, and 1 for hard. Surface finishing code: D for the non-glossy finish, B for a bright finish. For example, SPCC-SD indicates the standard tempered, non-glossy finished cold-rolled carbon sheet for general use. Another example is SPCCT-SB, which means standard tempered, bright finished, cold-rolled carbon sheet with guaranteed mechanical properties.<\/p><p>8, JIS mechanical structural steel grades are expressed as follows: S + carbon content + letter designation (C, CK), where the carbon content with the middle value \u00d7 100, the letter C: indicates carbon K: indicates carburized steel. For example, the carbon content of carbon knotted coil S 20C is 0.18-0.23%.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Grade representation Common Japanese steel grades for general and mechanical structural steel 1, Japanese steel (JIS series) in the ordinary structural steel grade consists of three<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4171,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[17],"tags":[],"class_list":["post-4083","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-knowledge"],"_links":{"self":[{"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/posts\/4083"}],"collection":[{"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/comments?post=4083"}],"version-history":[{"count":27,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/posts\/4083\/revisions"}],"predecessor-version":[{"id":4781,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/posts\/4083\/revisions\/4781"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/media\/4171"}],"wp:attachment":[{"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/media?parent=4083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/categories?post=4083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baowusteelcompany.com\/wp-json\/wp\/v2\/tags?post=4083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}