{"id":8862,"date":"2016-03-11T15:29:38","date_gmt":"2016-03-11T15:29:38","guid":{"rendered":"https:\/\/staging.asminternational.org\/hts-new\/results\/-\/journal_content\/56\/10192\/26207014\/NEWS\/"},"modified":"2023-02-07T04:49:23","modified_gmt":"2023-02-07T04:49:23","slug":"one-minute-mentor-tempering-characteristics-of-p20-mold-steel","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/hts\/one-minute-mentor-tempering-characteristics-of-p20-mold-steel\/","title":{"rendered":"One Minute Mentor: Tempering Characteristics of P20 Mold Steel"},"content":{"rendered":"<p>\n\tTempering characteristics for P20 mold steels carburized at two different temperatures are shown in the graphs. In (a), the upper curve represents steel carburized in hardwood charcoal at 1675 to 1700\u00b0F for eight hours, air cooled in pack, reheated at 1725 to 1750\u00b0F, cooled in air, and tempered. The middle curve represents steel carburized in cast iron chips at 1725 to 1750\u00b0F, removed from pack, cooled in air, and tempered. Graph (b) shows surface hardness after heating at temperature for two hours in a carburizing compound, followed by oil quenching and tempering.<\/p>\n<p>\n\t<span style=\"line-height: 1.4;\">Volume 4D,<em> Heat Treating of Irons and Steels<\/em>&nbsp;<\/span><span style=\"line-height: 1.4;\">?<\/span><span style=\"line-height: 1.4;\">&nbsp;Tool Steels&nbsp;<\/span><span style=\"line-height: 1.4;\">?<\/span><span style=\"line-height: 1.4;\">&nbsp;&nbsp;<\/span><span style=\"line-height: 1.4;\">Heat Treating of Mold Steels and Corrosion-Resistant Tool Steels&nbsp;<\/span><span style=\"line-height: 1.4;\">?<\/span><span style=\"line-height: 1.4;\">&nbsp;Recommended Heat Treating Practices<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tempering characteristics for P20 mold steels carburized at two different temperatures are shown in the graphs.<\/p>\n","protected":false},"author":63082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[472,439,440,441,486,1],"tags":[],"class_list":["post-8862","post","type-post","status-publish","format-standard","hentry","category-carburizing-and-carbonitriding","category-general","category-news","category-news-articles","category-tempering","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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