Metals: Technical Data

Precious Metals STERLING SILVER: 92.5% silver 7.5% copper Melts at 1640ºF FINE SILVER: 99.9% silver Melting point 1761ºF 10K YELLOW GOLD: 41.666% gold Balance is: copper silver zinc silicon Melt point 1635ºF 14K YELLOW GOLD: 58.33% gold 8.3% silver 29.2% copper 4.17% zinc Melt point 1615ºF 14K WHITE GOLD: 58.33% gold 22.1% Copper 10.8% Nickel 8.77% Zinc Melt point 1800ºF/983ºC 18K YELLOW GOLD: 75% gold 15% silver 10% copper Melt point 1715ºF/527ºC 18K WHITE GOLD: 75.15% gold 17.3% Nickel 5.47% Zinc 2.08% Copper Melt point 1750ºF/955ºC 24K GOLD GRAIN: (9999 fine) MASTER ALLOY #383: Used to reduce karat to 18-22K Melt temp at 18-22K is 1640ºF or 895ºC Recommended casting temperature is 1775ºF or 970ºC Silver Content is 55.20% MASTER ALLOY #606: Used to reduce 24K grain to 14-10k Melt temp at 14K is 1625ºF or 885ºC Melt temp at 10K is 1660ºF or 905ºC Recommended casting temp for 14k is 1775ºF or 970ºC Recommended casting temp for 10k is 1835ºF or 1000ºC Silver Content is 14.80% Melting Points — Precious And Base Metals METAL MELT POINT METAL MELT POINT 24K gold 1945ºF(1064ºC) Copper, pure 1981ºF(1084ºC) 18K gold 1715ºF(936ºC) Nickel, pure 2645ºF(1453ºC) 14K yellow gold 1615ºF(880ºC) Tin, pure 450ºF(232ºC) 14K white gold 1825ºF(997ºC) Zinc 787ºF(420ºC) Fine (999) silver 1761ºF(961ºC) Brass, yellow 1706ºF(931ºC) Sterling(925) silver 1640ºF(894ºC) #230 red brass 1877ºF(1026ºC) Coin silver 1616ºF(881ºC) #752 nickelsilver 1960ºF(1072ºC)

Casting Bronzes HERCULOY: 92% copper 4% silicon 4% zinc Melting point 1780ºF BRONWITE: 59% copper 20% manganese 20% zinc 1% aluminum Melting point 1550ºF DZR BRASS 63.0% copper 32.5% zinc 2.0% lead 0.7% silicon 0.5% manganese 0.5% nickel 0.5% tin 0.3% aluminum 0.05% antimony Melting range: 1610-1630ºF Base Metals NICKEL (CDA #752): Also called German Silver or Nickel Silver 65% copper 18% nickel and 17% zinc Melting point 1960ºF RED BRASS (CDA #230): Also called Rich Low Brass, Jeweler’sBronze, Merlin’s Gold, or Craft Gold 85% copper with 15% zinc Melting point 1877ºF COPPER (CDA #110): 99.9% copper Melting point 1981ºF YELLOW BRASS (CDA #260): 70% copper 30% zinc Melt point 1706ºF Laminates 10% SILVERFILLED: 10% layer of sterling silver (by weight) on nickel CDA #752 25% SILVERFILLED: 25% layer of sterling silver (by weight) on nickel CDA #752 1/20 12K GOLDFILLED: 5% layer of 12K gold (by weight) on red brass CDA #230 1/20 14K GOLDFILLED: 5% layer of 14K gold (by weight) on red brass CDA #230 SOLDER-FLUSHED GOLDFILLED SHEET: Same as single-clad goldfilled, but has a layer of silver solder on the non-gold side Choose Rose – 1/10 10K Yellow – 1/10 10K Green – 1/10 14K

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