{"id":1847,"date":"2026-05-09T18:01:15","date_gmt":"2026-05-10T01:01:15","guid":{"rendered":"https:\/\/www.songhaiflanges.com\/?p=1847"},"modified":"2026-05-12T17:43:06","modified_gmt":"2026-05-13T00:43:06","slug":"gb-t-1979-2001-standard-diagrams-for-macrostructure-and-defect-of-structural-steels","status":"publish","type":"post","link":"https:\/\/www.songhaiflanges.com\/it\/gb-t-1979-2001-standard-diagrams-for-macrostructure-and-defect-of-structural-steels\/","title":{"rendered":"GB\/T 1979-2001 Standard Diagrams for Macrostructure and Defect of Structural Steels"},"content":{"rendered":"<h1>GB\/T 1979-2001 Standard Diagrams for Macrostructure and Defect of Structural Steels<\/h1>\n<h2>\u7ed3\u6784\u94a2\u4f4e\u500d\u7ec4\u7ec7\u7f3a\u9677\u8bc4\u7ea7\u56fe<\/h2>\n<h3>Standard Overview | \u6807\u51c6\u6982\u8ff0<\/h3>\n<p><strong>Standard Number:<\/strong> GB\/T 1979-2001<\/p>\n<p><strong>Release Date:<\/strong> 2001-12-17<\/p>\n<p><strong>Implementation Date:<\/strong> 2002-05-01<\/p>\n<p><strong>Published by:<\/strong> General Administration of Quality Supervision, Inspection and Quarantine of PRC<\/p>\n<h3>15 Defect Types | 15 \u79cd\u7f3a\u9677\u7c7b\u578b<\/h3>\n<table border=\"1\" cellpadding=\"8\" style=\"border-collapse: collapse;\">\n<tr style=\"background:#f0f0f0;\">\n<th>Code<\/th>\n<th>English Name<\/th>\n<th>\u4e2d\u6587\u540d\u79f0<\/th>\n<\/tr>\n<tr>\n<td>4.1<\/td>\n<td>General Loose Structure<\/td>\n<td>\u4e00\u822c\u758f\u677e<\/td>\n<\/tr>\n<tr>\n<td>4.2<\/td>\n<td>Center Loose Structure<\/td>\n<td>\u4e2d\u5fc3\u758f\u677e<\/td>\n<\/tr>\n<tr>\n<td>4.3<\/td>\n<td>Ingot Pattern Segregation<\/td>\n<td>\u952d\u578b\u504f\u6790<\/td>\n<\/tr>\n<tr>\n<td>4.4<\/td>\n<td>Spot Segregation<\/td>\n<td>\u6591\u70b9\u72b6\u504f\u6790<\/td>\n<\/tr>\n<tr>\n<td>4.5<\/td>\n<td>White Band<\/td>\n<td>\u767d\u4eae\u5e26<\/td>\n<\/tr>\n<tr>\n<td>4.6<\/td>\n<td>Center Segregation<\/td>\n<td>\u4e2d\u5fc3\u504f\u6790<\/td>\n<\/tr>\n<tr>\n<td>4.7<\/td>\n<td>Cap Segregation<\/td>\n<td>\u5e3d\u53e3\u504f\u6790<\/td>\n<\/tr>\n<tr>\n<td>4.8<\/td>\n<td>Subsurface Blowhole<\/td>\n<td>\u76ae\u4e0b\u6c14\u6ce1<\/td>\n<\/tr>\n<tr>\n<td>4.9<\/td>\n<td>Residual Shrinkage Cavity<\/td>\n<td>\u6b8b\u4f59\u7f29\u5b54<\/td>\n<\/tr>\n<tr>\n<td>4.10<\/td>\n<td>Turned-in Skin<\/td>\n<td>\u7ffb\u76ae<\/td>\n<\/tr>\n<tr>\n<td>4.11<\/td>\n<td>Flake (Fish-eye)<\/td>\n<td>\u767d\u70b9<\/td>\n<\/tr>\n<tr>\n<td>4.12<\/td>\n<td>Intergranular Crack at Axle Core<\/td>\n<td>\u8f74\u5fc3\u6676\u95f4\u88c2\u7f1d<\/td>\n<\/tr>\n<tr>\n<td>4.13<\/td>\n<td>Internal Blowhole<\/td>\n<td>\u5185\u90e8\u6c14\u6ce1<\/td>\n<\/tr>\n<tr>\n<td>4.14<\/td>\n<td>Non-metallic Inclusions<\/td>\n<td>\u975e\u91d1\u5c5e\u5939\u6742\u7269<\/td>\n<\/tr>\n<tr>\n<td>4.15<\/td>\n<td>Foreign Metal Inclusions<\/td>\n<td>\u5f02\u91d1\u5c5e\u5939\u6742\u7269<\/td>\n<\/tr>\n<\/table>\n<h3>Download Original PDF<\/h3>\n<p><a href=\"https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/05\/GB_T_1979-2001_Standard_diagrams_macrostructure_defect_structural_steels.pdf\" target=\"_blank\">\ud83d\udcc4 Download GB\/T 1979-2001 Standard PDF (3.9 MB)<\/a><\/p>\n<h3>Online PDF Viewer<\/h3>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/05\/GB_T_1979-2001_Standard_diagrams_macrostructure_defect_structural_steels.pdf\" width=\"100%\" height=\"600px\" style=\"border:1px solid #ccc;\"><\/iframe><br \/>\n<strong>WhatsApp:<\/strong>\u00a0+86-18658777855<br \/>\n<strong>Email:<\/strong>\u00a01007788887@qq.com<br \/>\n<a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1480\" src=\"http:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1.webp\" alt=\"\" width=\"1290\" height=\"2317\" srcset=\"https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1.webp 1290w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-167x300.webp 167w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-570x1024.webp 570w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-768x1379.webp 768w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-855x1536.webp 855w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-1140x2048.webp 1140w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-7x12.webp 7w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Chinese National Standard for structural steel macrostructure defects &#8211; with English translation summary and downloadable PDF<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"default","_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,"footnotes":""},"categories":[1],"tags":[415,412,414,416,413,417],"class_list":["post-1847","post","type-post","status-publish","format-standard","hentry","category-3-news","tag-defects","tag-gb-t-1979-2001","tag-macrostructure","tag-standard","tag-structural-steel","tag-417"],"_links":{"self":[{"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/posts\/1847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/comments?post=1847"}],"version-history":[{"count":3,"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/posts\/1847\/revisions"}],"predecessor-version":[{"id":1878,"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/posts\/1847\/revisions\/1878"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/media?parent=1847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/categories?post=1847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/it\/wp-json\/wp\/v2\/tags?post=1847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}