Precious Metal AgCu10 vs Britannia Silver (958)
Precious Metal · grade comparison
Precious Metal AgCu10 and Britannia Silver (958) are both precious metal grades. AgCu10 is the stronger of the two: yield strength 115 MPa (16.7 ksi) against 60 MPa (8.7 ksi) for Britannia Silver (958), about 92% more; tensile strength follows at 285 MPa (41.3 ksi) vs 240 MPa (34.8 ksi). In exchange, Britannia Silver (958) is the more ductile: elongation 48% versus 35% for AgCu10, and AgCu10 is harder (60 HB vs 47 HB). AgCu10 runs hotter in service (250°C vs 200°C continuous). On the shop floor, AgCu10 machines more easily (good vs fair) and Britannia Silver (958) welds better (very good vs good).
AgCu10Choose it when strength drives the design, or when the part sees heat.
Britannia Silver (958)Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
AgCu10 vs Britannia Silver (958): 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
Same in both: Poisson's Ratio 0.37
Physical
Density and transition temperatures.
Density
Liquidus Temperature
Same in both: Melting Point (Solidus) 779°C1,434 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Max Service Temperature (continuous)
Same in both: Thermal Expansion (CTE, 20–100 °C) 19 µm/m·K10.6 µin/in·°F · Latent Heat of Fusion 105 J/g45.1 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) 0.12 V · Corrosion Resistance 78 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Polishability
Machinability Rating (AISI 1212 = 100 %)
Same in both: Brazeability / Solderability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 | AgCu10 | Britannia Silver (958) |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
AgCu10 vs Britannia Silver (958) — frequently asked
Is AgCu10 stronger than Britannia Silver (958)?
Yes. AgCu10 has a typical yield strength of 115 MPa (16.7 ksi) against 60 MPa (8.7 ksi) for Britannia Silver (958) — about 92% more. Tensile strength is 285 MPa (41.3 ksi) vs 240 MPa (34.8 ksi).
Which is cheaper, AgCu10 or Britannia Silver (958)?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, AgCu10 or Britannia Silver (958)?
AgCu10. Its machinability rates good (55/100) against fair (45/100) for Britannia Silver (958); for welding the order is Britannia Silver (958) first (very good, 70/100) then AgCu10 (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in AgCu10 and Britannia Silver (958) 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.