{"id":31878,"date":"2023-11-11T20:24:12","date_gmt":"2023-11-11T19:24:12","guid":{"rendered":"https:\/\/zinn-giesserei-goehler.com\/produkt\/rg7-ingots-cusn7zn4pb7\/"},"modified":"2026-04-16T21:42:45","modified_gmt":"2026-04-16T19:42:45","slug":"rg7-ingots-cusn7zn4pb7","status":"publish","type":"product","link":"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/rg7-ingots-cusn7zn4pb7\/","title":{"rendered":"Rg7 Ingots CuSn7Zn4Pb7"},"content":{"rendered":"<p><strong>Rg7 Ingots made of CuSn7Zn4Pb7-C (CC493K) weighing 250g per piece<\/strong><\/p>\n<p><strong>Material: CuSn7Zn4Pb7-C (CC493K)<br \/>\nWeight per ingot: 250 g<\/strong><br \/>\n<strong>Dimensions: approx. 73x32x12mm<\/strong><br \/>\n<strong>Melting temperature: approx. 1020\u00b0C (liquidus temperature)<\/strong><br \/>\n<strong>Casting temperature: 1100-1150\u00b0C<\/strong><br \/>\n<strong>Density: 8.83 g\/cm\u00b3<\/strong><\/p>\n<p>CuSn7Zn4Pb7-C is a common gunmetal alloy. Rg7 is frequently used as a plain bearing material in mechanical engineering. It is characterized by good emergency running properties, high corrosion resistance (including in seawater), and good wear resistance.<br \/>\nThe pieces are very easy to melt down and cast. For ideal casting behavior, we recommend pouring the alloy at 1100\u20131150\u00b0C and adding slag binder for copper-based alloys to the melt beforehand.<br \/>\nFor technical reasons, the alloy contains up to 7% lead. This does not hinder the casting process and ensures better machinability. If you prefer a lead-free cast bronze, you can also purchase CuSn8 ingots in our shops. If you add a further 4\u20137% tin and, if necessary, zinc to this, you will obtain a similar but lead-free alloy with very good casting properties.<br \/>\nThe surface of the ingots is not polished and is therefore somewhat matte. The material is nevertheless clean and free of impurities.<br \/>\nThe molding sand available in our shops is very well suited as a molding compound for bronze castings.       <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gunmetal Brass Bronze <strong>CC493K Ingots<\/strong><\/p>\n","protected":false},"featured_media":31879,"template":"","meta":[],"product_brand":[],"product_cat":[298,342],"product_tag":[281],"class_list":{"0":"post-31878","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-alloys","7":"product_cat-bronze","8":"product_tag-ingots","9":"product_shipping_class-free","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-variable"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rg7 Ingots CuSn7Zn4Pb7 - Zinn Gie\u00dferei G\u00f6hler<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/rg7-ingots-cusn7zn4pb7\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rg7 Ingots CuSn7Zn4Pb7 - 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