{"product_id":"ultra-white-10-18k-nickel-based-fabrication-casting-master-alloy-per-troy-ounce","title":"Ultra White For Making 10-18 White Multi-Purpose Alloy-Per Troy Ounce (20 DWT)","description":"\u003cp\u003eThis ultra white fabrication alloy is nickel-based and contains no gold and no silver. Designed as a multi-purpose master alloy for both casting and fabrication applications, it is suitable for making white gold alloys from 10K through 18K. Sold by the troy ounce (20 DWT).\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: There are proprietary metals in the formulation that are not included in the composition listing below.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNickel-based multi-purpose alloy for casting and fabrication\u003c\/li\u003e\n\u003cli\u003eCompatible with white gold alloys from 10K to 18K\u003c\/li\u003e\n\u003cli\u003eContains no gold and no silver\u003c\/li\u003e\n\u003cli\u003ePre-alloying with aggressive stirring and fluxing recommended for a uniform mixture\u003c\/li\u003e\n\u003cli\u003eBoric acid is the recommended flux — do not use carbon fluxes or refining fluxes such as soda ash or saltpeter\u003c\/li\u003e\n\u003cli\u003eAvoid flux in bottom-pour automatic casting units\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition – Copper (Cu)\u003c\/th\u003e\n\u003ctd\u003e63%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition – Zinc (Zn)\u003c\/th\u003e\n\u003ctd\u003e17%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition – Nickel (Ni)\u003c\/th\u003e\n\u003ctd\u003e19.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition – Silver (Ag)\u003c\/th\u003e\n\u003ctd\u003e0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContains Gold\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBase Metal\u003c\/th\u003e\n\u003ctd\u003eNickel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKarat Range\u003c\/th\u003e\n\u003ctd\u003e10K – 18K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eCasting and fabrication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold By\u003c\/th\u003e\n\u003ctd\u003eTroy ounce (20 DWT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eUsage Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Alloying (Fine gold + alloy):\u003c\/strong\u003e Heat to 1090°C – 1100°C \/ 1994°F – 2030°F with aggressive stirring and fluxing to ensure a uniform mixture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting Temperature for 10K Alloyed Grain:\u003c\/strong\u003e 1085°C – 1105°C \/ 1985°F – 2021°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting Temperature for 14K Alloyed Grain:\u003c\/strong\u003e 1025°C – 1045°C \/ 1877°F – 1913°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting Temperature for 18K Alloyed Grain:\u003c\/strong\u003e 995°C – 1015°C \/ 1832°F – 1859°F\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelt temperature may vary\u003c\/strong\u003e depending on the type of casting unit used.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlask Temperature:\u003c\/strong\u003e Recommended range is 540°C – 675°C \/ 1004°F – 1247°F, depending on flask size, karat, and jewelry type.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuench Time:\u003c\/strong\u003e 25 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInvestment Removal:\u003c\/strong\u003e Most standard investment removers will successfully remove investment powder. Aggressive acids are not recommended, as they cause stress corrosion and surface damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrap Reuse:\u003c\/strong\u003e A 70% fresh – 30% scrap mix is recommended. White gold alloy has approximately one-third the reusability of yellow gold alloys.\u003c\/li\u003e\n\u003cli\u003eThis product contains nickel. See applicable Proposition 65 warnings.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43581634052310,"sku":"846-103","price":8.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ultra-white-for-making-10-18-white-multi-purpose-alloy-per-troy-ounce-20-dwt-otto-frei.jpg?v=1719957479","url":"https:\/\/www.ottofrei.com\/products\/ultra-white-10-18k-nickel-based-fabrication-casting-master-alloy-per-troy-ounce","provider":"Otto Frei","version":"1.0","type":"link"}