PORCELAIN ALLOYS TYPE ALLOY CLASSIFICATION COMPOSITION % DENSITY g/cm3 COLOR VICKERS HARDNESS ULTIMATE TENSILE STRENGTH psi PROOF STRESS psi ELONGATION % MELTING RANGE CASTING TEMPERATURE PRESOLDER(S) POSTSOLDER(S) THERMAL COEFFICEINT OF EXPANSION (X10-6/°C) Au Pt Pd Ag Cu HARDENED HARDENED HARDENED HARDENED °F °C °F °C (25-500° C) (25-600° C) GOLD BASED PG-88 HIGH NOBLE 88 10 - 1 - 19 YELLOW 175 68,000 56,000 11 1925-2100 1040-1140 2210 1196 820 650 14.2 14.4 PG-Riviera HIGH NOBLE 88 9 - - - 18.6 RICH YELLOW 190 77,500 69,500 9 1920-2080 1049-1138 2300 1260 820 650 14.5 14.7 PG-Plus HIGH NOBLE 87.5 5 6 1 - 18.5 YELLOW 185 71,000 65,000 5 2100-2150 1149-1177 2300 1260 PORC YELLOW 650 14.5 14.7 PG-Supreme HIGH NOBLE 86 4.5 5 3 - 18.7 YELLOW 160 77,500 69,000 8 1958-2138 1070-1170 2250 1230 820 650, 615, 585, 450 14.6 14.8 Bio-84Y HIGH NOBLE 84 11 - 2 - 18.1 RICH YELLOW 185 79,500 74,000 5 1832-2012 1000-1100 2280 1250 820 650, 615 14.5 14.7 PG-C HIGH NOBLE 76 9 10 1 - 18.5 YELLOW 245 108,800 91,400 11 2100-2245 1134-1215 2515 1365 PORC YELLOW 650 14.1 14.4 PG-Y HIGH NOBLE 75 - 12 10 - 16.2 YELLOW 240 90,000 73,000 8 2145-2200 1174-1204 2350 1290 PORC YELLOW 650, 615 14.4 14.7 PG-747 HIGH NOBLE 74 4 7.5 11 - 16.2 YELLOW 225 85,000 75,000 8 2075-2150 1135-1177 2300 1260 PORC YELLOW 650, 615 15 15.4 PG-73 HIGH NOBLE 73 1.5 6 16 - 15.7 YELLOW 260 108,700 81,200 3 1795-1960 980-1070 2280 1250 760 720 16.3 16.8 GOLD-PALLADIUM BASED PG-76 HIGH NOBLE 76 - 18 - - 16 WHITE 245 100,000 80,000 12 2000-2230 1088-1216 2380 1300 PORC SILVER-FREE 450 14.3 14.5 PG-65 HIGH NOBLE 65 - 26 - - 15.2 WHITE 250 100,000 80,000 15 2084-2291 1140-1255 2500 1370 PORC SILVER-FREE 450 14.1 14.4 PG-A HIGH NOBLE 62 - 25 9 - 14.9 WHITE 250 70,000 50,000 7 2250-2300 1232-1260 2450 1343 PORC WHITE 585 14.3 14.5 PG-52X HIGH NOBLE 51.5 - 38.5 - - 14.4 WHITE 275 129,000 93,000 20 2012-2381 1100-1305 2550 1400 PORC SILVER-FREE 650, 615, 585, 450 14.0 14.2 PG-W HIGH NOBLE 51 - 29 15 - 14.2 WHITE 230 106,000 76,000 16 2138-2363 1170-1295 2500 1371 PORC WHITE 650, 615, 585, 450 14.5 14.7 PG-H HIGH NOBLE 45 - 40 5 - 14.3 WHITE 220 115,000 83,000 20 2175-2350 1191-1288 2500 1370 PORC SILVER-FREE 650, 615, 585, 450 14.1 14.3 PALLADIUM BASED PG-80 NOBLE - - 80 - 5 11.2 WHITE 260 125,000 98,000 19 2175-2210 1191-1210 2350 1290 PORC SILVER-FREE 450 14.1 14.3 PG-785 NOBLE - - 78.5 5 - 11.3 WHITE 295 123,000 109,000 26 2048-2408 1120-1320 2570 1410 PORC SILVER-FREE 650, 615, 585, 450 14.2 14.5 PG-177 NOBLE 1 - 77 9 1 11.2 WHITE 245 124,000 98,000 28 2010-2300 1100-1260 2500 1370 PORC SILVER-FREE 450 14.3 14.5 PG-200+ NOBLE 1 1 77 - 10 10.6 WHITE 285 132,500 91,500 26 2165-2335 1185-1280 2500 1370 PORC SILVER-FREE 650, 615, 585, 450 14.1 14.3 PG-200 NOBLE 2 - 76 - 10 11.2 WHITE 360 167,000 148,500 23 2185-2205 1196-1207 2370 1300 PORC SILVER-FREE 650, 615, 585, 450 14.1 14.3 PG-600 NOBLE 6 - 75 6.5 - 11.4 WHITE 265 113,000 87,000 30 2090-2260 1143-1237 2450 1340 PORC SILVER-FREE 650, 585 14.3 14.5 PG-M NOBLE - - 60.5 28 - 11.2 WHITE 310 144,500 107,500 13 2066-2327 1130-1275 2500 1370 PORC WHITE 650, 615, 585, 450 14.5 14.7 PG-58+ NOBLE 2 - 58 28 - 11.3 WHITE 300 131,000 106,000 8 2111-2348 1155-1287 2500 1370 PORC WHITE 650, 615, 585, 450 14.5 14.7 Palasil-P NOBLE - - 53.5 37.5 - 11.0 WHITE 275 105,000 80,000 18 2150-2300 1177-1260 2450 1340 PORC WHITE 650, 615, 585, 450 14.9 15.1 Palasil-E NOBLE - - 49.5 40 - 10.9 WHITE 295 115,000 95,000 6 2100-2275 1150-1246 2450 1340 PORC WHITE 650, 615, 585, 450 15.3 15.5