{"id":1600,"date":"2026-09-24T09:35:27","date_gmt":"2026-09-24T09:35:27","guid":{"rendered":"https:\/\/www.wudejiansteel.com\/?p=1600"},"modified":"2026-09-24T09:35:28","modified_gmt":"2026-09-24T09:35:28","slug":"when-using-h13-or-8418-for-fine-tooth-aluminum-extrusion-the-teeth-tend-to-break-however-using-high-toughness-lg-die-steel-prevents-tooth-breakage-blog-315","status":"publish","type":"post","link":"https:\/\/www.wudejiansteel.com\/?p=1600","title":{"rendered":"When using H13\u00a0or 8418 for fine-tooth aluminum extrusion, the teeth tend to break; however, using high-toughness LG die steel\u00a0prevents tooth breakage.Blog.315"},"content":{"rendered":"\n

Today\u2019s most valuable order came from an aluminum extrusion plant that placed a repeat order for high-toughness LG die steel<\/a><\/strong>, indicating that they have resolved the fracture issues with their fine-tooth cutters.<\/p>\n\n\n\n

\u00a0Mr. Li\u2019s aluminum profile molds operate at a constant temperature of 500\u2013530\u00b0C. Currently, he uses H13<\/a><\/strong>\u00a0steel, but the fine teeth are prone to chipping and misalignment. For radiator products with thin sections, H13<\/strong>\u00a0lacks sufficient strength and is prone to breakage. The mold requires a hardness of around HRC 55 to ensure adequate strength and prevent misalignment, while also maintaining good toughness\u2014since a chipped mold is rendered useless. The mold manufacturer has tested H13<\/strong>, electroslag H13<\/strong>, 8418, and other mold steels, but all have failed\u2014they keep breaking, and the issue remains unresolved.<\/p>\n\n\n\n

 After Mr. Li contacted me in April, given the specific operating conditions of his mold\u2014which require consideration of both toughness and strength\u2014I recommended the high-toughness LG mold steel. LG\u2019s toughness is 8 to 9 times that of DC53, with a hardness of HRC 54\u201358. It\u2019s so tough that it won\u2019t break even if you bend it by hand. LG\u2019s combination of high hardness and high toughness is something that low-carbon steels like H13<\/strong> and 8418 simply cannot match.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

After some discussion, Mr. Li purchased some LG <\/strong>die<\/strong> steel<\/strong> to test it out.<\/p>\n\n\n\n

 His product uses relatively few materials but has very high requirements\u2014requirements that his competitors haven\u2019t been able to meet. They\u2019ve all been stuck choosing between H13<\/strong> and 8418. He believed that if LG could solve the problem, there would be orders, so he wasn\u2019t concerned about the cost\u2014he just wanted it to work well. To support the client\u2019s market development efforts, the product is currently under confidentiality, so I won\u2019t be sharing any details with you.<\/p>\n\n\n\n

 The fact that the customer returned to place another order indicates that the mold issues have been resolved. This time, the purchase volume doubled, showing that LG not only solved the tooth chipping problem but also performed exceptionally well\u2014otherwise, the customer wouldn\u2019t have increased the order quantity.<\/p>\n\n\n\n

 Using LG <\/strong>die<\/strong> steel<\/strong> to address mold cracking is like stepping into a \u201cliberated zone.\u201d If your thin-sheet, narrow-flange aluminum extrusion molds are experiencing fracture issues, you should definitely give LG\u2019s high-toughness mold steel a try.<\/p>\n\n\n\n

*************************<\/p>\n\n\n\n

Wu Dejian\u2019s tool\u2002steel<\/strong><\/a>, the chief of staff of the user, bought everything he had used.<\/p>\n","protected":false},"excerpt":{"rendered":"

Today\u2019s most valuable order came from an aluminum extrusion plant that placed a repeat order for high-toughness LG die steel, indicating that they have resolved the fracture issues with their fine-tooth cutters. \u00a0Mr. Li\u2019s aluminum profile molds operate at a constant temperature of 500\u2013530\u00b0C. Currently, he uses H13\u00a0steel, but the fine teeth are prone to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1600","post","type-post","status-publish","format-standard","hentry","category-blog"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t