{"id":1162,"date":"2026-07-15T10:04:41","date_gmt":"2026-07-15T10:04:41","guid":{"rendered":"https:\/\/www.wudejiansteel.com\/?p=1162"},"modified":"2026-07-15T10:04:42","modified_gmt":"2026-07-15T10:04:42","slug":"i-really-didnt-expect-that-lg-die-steel-could-replace-low-alloy-steel-for-impact-pistons-and-with-such-good-results-blog-231","status":"publish","type":"post","link":"https:\/\/www.wudejiansteel.com\/?p=1162","title":{"rendered":"I really didn’t expect that LG die\u00a0steel\u00a0could replace low-alloy steel for impact pistons\u2014and with such good results.blog\u00a0231"},"content":{"rendered":"\n

I really didn\u2019t expect that\u00a0LG die\u00a0steel<\/a> <\/strong>could replace low-alloy steel for high-strength shafts\u2014and with such good results.<\/p>\n\n\n\n

 This is a part subject to impact, requiring high toughness as well as wear resistance. Previously, low-alloy structural steels such as 42CrMo, 38CrMoAl, and even 20CrMnTi were ineffective\u2014even with surface coatings\u2014as the shafts would bulge and deform upon impact. Switching to DC53 or LD, however, resulted in fractures. After more than two years of experimentation, LG die steel has proven to be the most effective. Now in the third year, the customer has started placing bulk orders; this time, they ordered 11 pieces of high-toughness LG die steel<\/strong>.<\/p>\n\n\n\n

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Alloy structural steels are low-carbon, low-alloy materials that lack sufficient strength; when subjected to external impact, the shaft swells and deforms. High-carbon cold-work die steels like LD and DC53<\/a><\/strong>\u00a0are too brittle and prone to breaking. Over the past two years\u2014and now into the third year\u2014he has been testing various types of steel, but in the end, the high-toughness LG die steel has proven to be the most reliable. This time, he purchased 11 pieces to manufacture his high-strength impact shafts.<\/p>\n\n\n\n

 <\/strong>LG die steel<\/strong> has 8\u20139 times the toughness of DC53, with a hardness of 54\u201358 HRC. It\u2019s so tough that you can bend it by hammering it without it breaking. LG offers a high hardness of 54\u201358 HRC\u2014a level of strength that low-alloy structural steels with good toughness cannot achieve, and a level of toughness that cold-work die steels lack.<\/p>\n\n\n\n

If you also manufacture high-strength shafts that require exceptionally high torque, or very long gear shafts subjected to significant transmission forces\u2014and you\u2019ve previously used alloy structural steels like 42CrMo or 40Cr, which are prone to twisting and deformation, or high-hardness DC53, which is prone to fracture\u2014and you haven\u2019t been able to find a solution, then you should try the highly tough LG <\/strong>die<\/strong> steel<\/strong>.<\/p>\n\n\n\n

I\u2019m Wu Dejian, the \u201cMold Steel King,\u201d from Dongguan Yuhui Mold Steel. Yuhui Mold Steel is used by three Fortune 500 companies, and Kyocera has been sourcing from us for seven consecutive years. If you\u2019re unsure about which mold steel to choose, or if the mold steel you\u2019re currently using results in short mold lifespans and you don\u2019t know which grade to switch to, please reach out to me. I\u2019ve helped over 4,000 companies solve complex problems related to mold material selection, manufacturing, and usage. I\u2019m confident that when it comes to selecting and applying mold steel, I can serve as your chief advisor and help you avoid costly trial-and-error.<\/p>\n\n\n\n

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Wu Dejian’s\u00a0tool\u00a0steel<\/a><\/strong>, the chief of staff of the user, bought everything he had used.<\/p>\n","protected":false},"excerpt":{"rendered":"

I really didn\u2019t expect that\u00a0LG die\u00a0steel could replace low-alloy steel for high-strength shafts\u2014and with such good results.  This is a part subject to impact, requiring high toughness as well as wear resistance. Previously, low-alloy structural steels such as 42CrMo, 38CrMoAl, and even 20CrMnTi were ineffective\u2014even with surface coatings\u2014as the shafts would bulge and deform upon […]<\/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-1162","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