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Precious metal materials (wires and plates)

Precious metals such as gold, silver, platinum, and palladium, having excellent physical and chemical properties, such as electrical properties, corrosion-resistance, heat-resistance, are used as single pure metals.
Tokuriki Honten provides such precious metals not only as single materials, but also as alloyed materials with other precious metals and/or base metals, having superior mechanical properties with higher hardness and tensile strength than other industrial materials. Our products are utilized in various industrial fields.

Physical properties of gold-based metals (reference)

Melting point (℃) Density (g/cm3) Hardness (HV) Tensile strength (Soft) (MPa) Volume resistivity (soft) (µΩ•cm)
Soft Hard
Au and Au alloys Au 1064 19.32 25 70 130 2.2
PGS 1100 18.8 70 140 290 16
GS 975 11.0 60 100 180 3.6
TY100 1085 11.8 200 370*1 690 30
TY200 960 16.2 200 330*1 540 21
TY300 950 15.4 200 340*1 650 22

Physical properties of silver-based metals (reference)

Melting point (℃) Density (g/cm3) Hardness (HV) Tensile strength (Soft) (MPa) Volume resistivity (soft) (µΩ•cm)
Soft Hard
Ag and Ag alloys Ag 962 10.5 25 80*2 180 1.6
92.5Ag-Cu
(Sterling silver)		 900 10.4 80 160 290 2
90Ag-Cu
(Coin silver)		 800 10.3 80 140 280 2
90Ag-Ni 962 10.3 90 110 250 1.9
85Ag-Ni 962 10.2 85 150 270 2.0

Physical properties of platinum-based metals (reference)

Melting point (℃) Density (g/cm3) Hardness (HV) Tensile strength (Soft) (MPa) Volume resistivity (soft) (µΩ•cm)
Soft Hard
Pt and Pt alloys Pt 1768 21.45 60 110 150 10.8
10Rh-Pt 1850 20 110 200 350 20
20Rh-Pt 1890 18.7 120 250 500 22
10Ir-Pt 1800 21.5 130 200 540 25
20Ir-Pt 1840 21.6 220 300 700 34
90Pt-Ni 1580 18.8 250 450*1 780 27

Physical properties of palladium-based metals (reference)

Melting point (℃) Density (g/cm3) Hardness (HV) Tensile strength (Soft) (MPa) Volume resistivity (soft) (µΩ•cm)
Soft Hard
Pd and Pd alloys Pd 1555 12.02 60 120 220 10.6
Ag-Pd60 1385 11.4 90 180 370 42
Ag-Pd30 1210 10.9 70 160 300 15
40Ag-Pd-Cu 1050 10.7 200 420*1 690 22
30Ag-Pd-Cu 1050 10.5 200 450*1 690 22
TY40 1030 10.5 160 310*1 590 12
TY70 990 10.8 190 400*1 770 24
TY401 870 10.4 150 250 600 10.1
  • *1Precipitation-hardened products
  • *2The hardness may decrease over time.

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