Materials for jewellery and decorative applications

The alloys listed here are just a small selection from the C.Hafner range. We would be delighted to advise on the best option for your application.

This data has been compiled with great care and checked for correctness. We cannot however accept any liability for incorrect or incomplete information. Given the continuous further development of our alloys, our range of alloys and their design are subject to modification.

Coloured gold

Alloy Colour Density
g/cm3
Melting
range
°C
Vickers
hardness
(soft)
Vickers
hardness
(hard)
Can be
hardened
Casting Semi-
finished
parts
Stock-
programme
333 GG 11 yellow 10,9 810-850 110 265 X X show
333 GG 13 yellow 10,7 790-890 110 230 X X X
333 GG 15 yellow 10,8 830-915 110 235 X show
333 RS 17 rosé 10,8 855-905 85 220 X
333 RT 18 red 11,0 960-990 95 210 X X
375 GG 10 yellow 11,2 815-895 110 220 X X
375 GG 11 yellow 11,1 815-890 110 220 X X
375 GG 12 yellow 11,0 805-885 90 220 X X
375 GG 13 yellow 11,1 815-890 110 220 X X
375 RT 16 red 11,3 925-960 120 225 X X
376 RS 14 yellow 11,2 890-950 120 230 X X
417 GG 10 yellow 11,2 790-870 110 260 X X
585 GG 10 yellow 13,9 820-915 110 195 X X
585 GG 13 Zn-frei pale yellow 14,1 820-880 135 205 X show
585 GG 14 yellow 13,6 840-900 130 220 X X
585 GG 15 pale yellow 14,1 835-880 125 235 X X X show
585 GG 18 yellow 13,3 790-825 140 275 X X show
585 GG 19 deep yellow „Hamilton“ 13,7 810-850 160 280 X X X show
585 GG 21 yellow 13,2 710-865 130 245 X X
585 GG 23 yellow 12,9 800-850 140 240 X
585 GG 24 yellow 13,0 830-880 120 X
585 GG 26 yellow 12,9 830-875 115 275 X
585 GG 40 yellow 14,4 1015-1035 40 115 X X
585 RS 28 rosé 13,2 875-910 120 240 X X show
585 RT 29 red 12,9 920-935 100 225 X X X show
751 GG 14 Zn-frei light yellow 2N 15,4 880-920 130 225 X show
751 GG 16 light yellow 2N 15,4 880-920 130 225 X show
751 GG 21 Zn-frei yellow 3N 15,3 880-900 145 215 X X show
751 GG 23 yellow 3N 15,3 880-900 140 250 X X X show
751 GG 24 yellow 3N 15,3 880-900 140 250 X X X
751 GG 27 yellow 15,2 890-905 145 240 X X X
751 GG 35 yellow 15,9 1010-1020 40 105 X
751 GG 36 yellow 15,5 880-920 130 225 X
751 RS 28 rosé 15,2 880-900 155 240 X X
751 RS 29 rosé 4N 14,9 860-880 170 260 X X X
751 RS 30 rosé 4N 14,9 860-880 170 260 X X X show
751 RT 32 red 5N 15,4 875-900 180 280 X X X show
900 GG 10 deep yellow 17,6 950-990 70 150 X X show
917 GG 10 deep yellow 17,6 950-990 70 130 X X show
1000 FG 10 Fine gold 19,3 1063 25 70 X show

White gold

Alloy Colour Density
g/cm3
Melting
range
°C
Vickers
hardness
(soft)
Vickers
hardness
(hard)
Can be
hardened
Casting Semi-
finished
parts
Stock-
programme
333 WG 10 (Ag) 12,3 850-920 110 190 X X X
375 WG 10 (Ag) 13,0 920-950 65 160 X X
376 WG 12 (Pd 5%) 12,6 880-965 100 210 X X X
585 WG 11 (Pd 10%) 14,9 1050-1130 80 175 X X show
585 WG 12 (Pd 6,5%) 14,6 1030-1090 75 200 X X
585 WG 15 (Ni 8,7%) 12,9 860-950 205 305 X X X
585 WG 30 (Pd 16%) 14,6 890-1090 135 230 X X show
590 WG 10 (Pd 15%) 14,5 1000-1075 170 290 X X X show
751 WG 10 (Pd 15%) 15,8 980-1140 135 X X
751 WG 11 (Pd 14%) 16,1 1020-1090 180 280 X X X show
751 WG 12 (Pd 13%) 15,6 995-1065 170 X X
751 WG 14 (Pd 13%) 15,7 1040-1080 125 245 X X show
751 WG 16 (Pd 12,5%) 15,6 1050-1135 150 235 X
751 WG 17 (Pd 12,5%) 15,9 1040-1130 145 235 X X
751 WG 19 (Pd 10%) 16,0 1050-1180 100 X show
751 WG 21 (Pd 10%) 16,3 1100-1180 80 70 X X
751 WG 22 (Pd 9%) 15,8 970-1060 150 235 X X
751 WG 23 champagne (Pd 7%) 15,9 945-1050 125 200 X X X show
751 WG 24 (Pd 6,5%) 15,8 955-1010 110 210 X X
751 WG 28 (Ni 4%) 14,8 890-930 165 265 X X
751 WG 29 (Ni 3,3%) 14,9 880-915 185 280 X X X
751 WG 38 (Pd 16%) 15,8 1060-1140 135 230 X X X show
751 WG 40 (Pd 12,5%) 15,5 1000-1035 170 260 X X
760 WG 31 (Ni 6%) 15,0 915-950 200 300 X X X

Platinum

Alloy Colour Density
g/cm3
Melting
range
°C
Vickers
hardness
(soft)
Vickers
hardness
(hard)
Can be
hardened
Casting Semi-
finished
parts
Stock-
programme
800 PT 10 (Ptlr) grey 21,6 1800-1830 190 275 X X
950 PT 10 (PtCo) grey 20,2 1730-1740 150 230 X show
950 PT 11 (PtW) grey 21,3 1830-1845 155 295 X show
950 PT 12 (PtCu) grey 20,8 1725-1745 120 200 X X
950 PT 13 (PtInGa) white 19,7 1510-1600 220 340 X X X
950 PT 14 (PtCuGa) white 19,9 1600-1660 165 280 X X X
950 PT 15 (PtRu) white 20,8 1780-1795 130 215 X X
950 PT 18 (PtAu) white 20,6 1630-1660 155 280 X X
960 PT 10 (PtCu) white 20,3 1730-1745 110 220 X X show

Palladium

Alloy Colour Density
g/cm3
Melting
range
°C
Vickers
hardness
(soft)
Vickers
hardness
(hard)
Can be
hardened
Casting Semi-
finished
parts
Stock-
programme
500 PD 10 grey 11,1 1200-1280 90 200 X show
950 PD 10 grey 11,7 1340-1400 85 180 X X show
950 PD 11 grey 11,8 1380-1450 135 225 X X
950 PD 12 silver grey 12 1565-1660 100 190 X X X show

Silver

Alloy Colour Density
g/cm3
Melting
range
°C
Vickers
hardness
(soft)
Vickers
hardness
(hard)
Can be
hardened
Casting Semi-
finished
parts
Stock-
programme
333 AG 10 9,4 780-930 120 X X
500 AG 10 9,6 780-865 120 155 X X
835 AG 10 10,2 780-840 80 140 X X
850 AG 10 11,2 970-990 35 100 X
925 AG 10 white 10,3 800-900 80 150 X X
925 AG 12 white 10,3 845-900 55 140 X
935 AG 10 white 10,3 845-900 55 130 X
935 AG 11 white 10,3 800-900 75 150 X X show
935 AG 12 white 10,3 840-890 65 140 X X show
1000 AG 10 Fine silver 10,5 962 25 90 X show
 
 
 

C.HAFNER GmbH + Co. KG  .  Gold- und Silberscheideanstalt  .  Germany  .  Phone: +49 7044 90 333-0  .  Fax: +49 7044 90 334-0  .  info@c-hafner.de