Precious Metal 80Ag-20CdO vs Silver 999
Precious Metal · grade comparison
Precious Metal 80Ag-20CdO and Silver 999 are both precious metal grades. 80Ag-20CdO is the stronger of the two: yield strength 135 MPa (19.6 ksi) against 55 MPa (7.98 ksi) for Silver 999, about 145% more; tensile strength follows at 265 MPa (38.4 ksi) vs 140 MPa (20.3 ksi). In exchange, Silver 999 is the more ductile: elongation 48% versus 15% for 80Ag-20CdO, and 80Ag-20CdO is harder (66 HB vs 25 HB). 80Ag-20CdO is lighter (9.9 g/cm³ vs 10.49 g/cm³ for Silver 999) and 80Ag-20CdO is stiffer (85 GPa vs 76 GPa). On the shop floor, Silver 999 welds better (good vs fair) and 80Ag-20CdO sits in a lower cost tier (high, $$$$) than Silver 999 (specialty, $$$$$).
80Ag-20CdOChoose it when strength drives the design, or when weight is the constraint.
Silver 999Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
80Ag-20CdO vs Silver 999: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all precious metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all precious metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Reduction in Area
Same in both: Poisson's Ratio 0.37
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Min Service Temperature
Same in both: Specific Heat Capacity 235 J/kg·K0.06 BTU/lb·°F · Max Service Temperature (continuous) 250°C482 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 55%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | 80Ag-20CdO | Silver 999 |
|---|---|---|
| Default condition | — | O |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
80Ag-20CdO vs Silver 999 — frequently asked
Is 80Ag-20CdO stronger than Silver 999?
Yes. 80Ag-20CdO has a typical yield strength of 135 MPa (19.6 ksi) against 55 MPa (7.98 ksi) for Silver 999 — about 145% more. Tensile strength is 265 MPa (38.4 ksi) vs 140 MPa (20.3 ksi).
Which is cheaper, 80Ag-20CdO or Silver 999?
80Ag-20CdO is the lower-cost material: it sits in the high tier ($$$$) while Silver 999 is specialty ($$$$$). 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, 80Ag-20CdO or Silver 999?
80Ag-20CdO, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for Silver 999; for welding the order is Silver 999 first (good, 60/100) then 80Ag-20CdO (fair, 35/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 80Ag-20CdO 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.