{"id":1457,"date":"2026-08-26T09:27:57","date_gmt":"2026-08-26T09:27:57","guid":{"rendered":"https:\/\/www.wudejiansteel.com\/?p=1457"},"modified":"2026-08-26T09:27:58","modified_gmt":"2026-08-26T09:27:58","slug":"tungsten-steel-is-too-expensive-for-hot-forging-dies-for-nuts-so-yuhui-8566-die-steel-is-used-as-a-substitute-blog-290","status":"publish","type":"post","link":"https:\/\/www.wudejiansteel.com\/?p=1457","title":{"rendered":"Tungsten steel is too expensive for hot-forging dies for nuts, so Yuhui\u00a08566 die steel\u00a0is used as a substitute..blog\u00a0290"},"content":{"rendered":"\n

Tungsten steel hot-forging dies are too expensive\u2014what die steel<\/a><\/strong>\u00a0should be used as a substitute? I can tell you now that 8566 die steel<\/a><\/strong>, with its high heat resistance, high hardness, and high toughness, is the most suitable replacement.<\/p>\n\n\n\n

 I saw 17 pieces of 8566 round bar ordered by a nut hot-forging die manufacturer in the workshop, which prompted me to share this with you. This customer manufactures nut hot-forging dies for 35CrMo material. They used to use tungsten carbide dies, which worked fine, but after the price of tungsten carbide tripled, the die costs became unsustainable. The customer couldn\u2019t accept the price hike, which resulted in them losing orders.<\/p>\n\n\n\n

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 Tungsten carbide is a tungsten-cobalt alloy with excellent heat resistance and a hardness of 86\u201389 HRA. When used as die steel<\/strong> for hot-forged nut dies, this high-heat-resistant, high-hardness tungsten carbide offers exceptional wear resistance; as long as the die doesn\u2019t crack, its service life can reach hundreds of thousands of cycles. However, with the price of tungsten carbide having tripled, some dies have become unaffordable, affecting the die manufacturer\u2019s ability to secure orders\u2014hence the need to find an alternative material.<\/p>\n\n\n\n

 However, for our hot-forging die sets for nuts, we still prefer a die steel<\/strong> that offers high heat resistance, high hardness, and excellent resistance to thermal wear to ensure a long die life, as well as good toughness to prevent cracking.<\/p>\n\n\n\n

 Thermal wear resistance is a comprehensive metric. First, the die steel must possess high heat resistance so that its hardness is not annealed away during high-temperature operation\u2014only then can red hardness be guaranteed, which is the foundation for preventing die collapse. On this basis, the die steel<\/strong> must also possess high hardness to ensure good thermal wear resistance.<\/p>\n\n\n\n

 Resistance to thermal wear is fundamental to ensuring the longevity of your hot-forging dies. High toughness and high thermal conductivity ensure that the die will not develop cracks during rapid cooling and heating with water, resulting in products with a good surface finish rather than cracks that would render them scrap. The only die steel<\/strong> that meets the requirements of high heat resistance, a hardness of HRC 60, and excellent toughness is 8566 die steel<\/strong>.<\/p>\n\n\n\n

 The heat resistance of 8566 is comparable to that of high-speed steel SKH-51, with a hardness of 58\u201360 HRC and four times the toughness of SKH-51. 8566 strikes the perfect balance between high heat resistance, high hardness, and high toughness\u2014a feat that other die steels cannot achieve. Thanks to its high heat resistance and hardness, 8566 also exhibits excellent resistance to thermal wear. Combined with its high toughness, the die remains crack-free, resulting in products with a superior surface finish.<\/p>\n\n\n\n

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As our boss Zhang said, when hot-forging 304 stainless steel, 8566 earns a five-star rating\u2014the finished products have excellent surface finish, looking just like they were made from tubing. Our hot-forging dies for nuts require high heat resistance, high hardness, and high toughness. Since 8566 possesses all three of these properties, the hot-forging dies for nuts made from it have a long service life.<\/p>\n\n\n\n

 After the price of tungsten steel tripled last year, this client began searching for an alternative. He scoured the country for every available hot-work die steel<\/strong> to compare, and after testing them all, he found that 8566 still offered the longest service life. He has now started purchasing in bulk and has ordered another 17 pieces this time.<\/p>\n\n\n\n

 If you want your hot-forging dies for nuts to have a long service life, but tungsten steel is too expensive and other die steels are prone to die collapse and have short lifespans\u2014and you\u2019re unsure which material to use\u2014then 8566 die steel<\/strong>, with its high heat resistance, high hardness, and high toughness, is definitely worth a try.<\/p>\n\n\n\n

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

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

Tungsten steel hot-forging dies are too expensive\u2014what die steel\u00a0should be used as a substitute? I can tell you now that 8566 die steel, with its high heat resistance, high hardness, and high toughness, is the most suitable replacement.  I saw 17 pieces of 8566 round bar ordered by a nut hot-forging die manufacturer in the […]<\/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-1457","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