FabDigitFabDigit

Precious Metal 85Ag-15Ni vs Silver 999

Precious Metal · grade comparison

Precious Metal 85Ag-15Ni and Silver 999 are both precious metal grades. 85Ag-15Ni is the stronger of the two: yield strength 95 MPa (13.8 ksi) against 55 MPa (7.98 ksi) for Silver 999, about 73% more; tensile strength follows at 230 MPa (33.4 ksi) vs 140 MPa (20.3 ksi). In exchange, Silver 999 is the more ductile: elongation 48% versus 25% for 85Ag-15Ni, and 85Ag-15Ni is harder (57 HB vs 25 HB). 85Ag-15Ni is lighter (10.1 g/cm³ vs 10.49 g/cm³ for Silver 999) and 85Ag-15Ni is stiffer (100 GPa vs 76 GPa). On the shop floor, 85Ag-15Ni sits in a lower cost tier (high, $$$$) than Silver 999 (specialty, $$$$$).

85Ag-15NiChoose it when strength drives the design, or when weight is the constraint.

Silver 999Choose it when the part is bent, formed or impact-loaded.

85Ag-15Ni vs Silver 999: properties

85Ag-15NiSilver 999

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

100 GPa14.5 Msi
76 GPa11 Msi

Shear Modulus

37 GPa5.4 Msi
29.5 GPa4.3 Msi

Bulk Modulus

118 GPa17.1 Msi
100 GPa14.5 Msi

Poisson's Ratio

0.36
0.37

Tensile Strength (Ultimate)

230 MPa33.4 ksi
140 MPa20.3 ksi

Yield Strength (0.2% offset)

95 MPa13.8 ksi
55 MPa8 ksi

Elongation at Break

25%
48%

Shear Strength

160 MPa23.2 ksi
95 MPa13.8 ksi

Fatigue Strength (Endurance Limit)

105 MPa15.2 ksi
60 MPa8.7 ksi

Hardness, Brinell

57 HB
25 HB

Hardness, Vickers

60 HV
27 HV

Reduction in Area

—
85%

Physical

Density and transition temperatures.

Density

10.1 g/cm³0.36 lb/in³
10.49 g/cm³0.38 lb/in³

Melting Point (Solidus)

961°C1,762 °F
962°C1,763 °F

Liquidus Temperature

1,455°C2,651 °F
962°C1,763 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

330 W/m·K191 BTU/hr·ft·°F
429 W/m·K248 BTU/hr·ft·°F

Specific Heat Capacity

265 J/kg·K0.06 BTU/lb·°F
235 J/kg·K0.06 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

18.5 µm/m·K10.3 µin/in·°F
19.6 µm/m·K10.9 µin/in·°F

Latent Heat of Fusion

118 J/g50.7 BTU/lb
105 J/g45.1 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
250°C482 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

78 % IACS
106 % IACS

Electrical Resistivity

2.21×10⁻⁸ Ω·m0.87 µΩ·in
1.59×10⁻⁸ Ω·m0.626 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

0 V
-0.11 V

Corrosion Resistance

82 / 100
80 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

35 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
55%

Weldability

55 / 100
60 / 100

Formability (cold)

85 / 100
98 / 100

Castability

10 / 100
85 / 100

Brazeability / Solderability

90 / 100
96 / 100

Polishability

82 / 100
98 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

1,300 MJ/kg558,900 BTU/lb
1,550 MJ/kg666,381 BTU/lb

Embodied Carbon (primary production)

110 kg CO₂/kg
96 kg CO₂/kg

Embodied Water

2,500 L/kg300 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

50%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

23 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

9.9 MN·m/kg
7.2 MN·m/kg

Modulus of Resilience

45 kJ/m³
20 kJ/m³

Thermal Diffusivity

123.3 mm²/s
174 mm²/s

Thermal Shock Resistance Index

41
40

Strength versus weight

Yield strength against density for every precious metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

50100200500101520Density (g/cm³)Yield strength (MPa) — log scaleSilver 99985Ag-15Ni

Manufacturing and finishing

Capability85Ag-15NiSilver 999
Default condition—O
Relative cost$$$$ High$$$$$ Specialty
Min. machined wall——
Best machined surface——

85Ag-15Ni vs Silver 999 — frequently asked

Is 85Ag-15Ni stronger than Silver 999?

Yes. 85Ag-15Ni has a typical yield strength of 95 MPa (13.8 ksi) against 55 MPa (7.98 ksi) for Silver 999 — about 73% more. Tensile strength is 230 MPa (33.4 ksi) vs 140 MPa (20.3 ksi).

Which is cheaper, 85Ag-15Ni or Silver 999?

85Ag-15Ni is the lower-cost material: it sits in the high tier ($$$$) while Silver 999 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 85Ag-15Ni or Silver 999?

Silver 999, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for 85Ag-15Ni; for welding the order is Silver 999 first (good, 60/100) then 85Ag-15Ni (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 85Ag-15Ni and Silver 999 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.