Precious Metal 950 Silver (Minerve) vs Britannia Silver (958)
Precious Metal · grade comparison
Precious Metal 950 Silver (Minerve) and Britannia Silver (958) are both precious metal grades. 950 Silver (Minerve) is the stronger of the two: yield strength 65 MPa (9.43 ksi) against 60 MPa (8.7 ksi) for Britannia Silver (958), about 8% more. 950 Silver (Minerve) is harder — 52 HB against 47 HB for Britannia Silver (958) — which matters for wear surfaces and threads. On the shop floor, 950 Silver (Minerve) machines more easily (good vs fair).
950 Silver (Minerve)Choose it when strength drives the design, or when surface hardness matters.
950 Silver (Minerve) 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.
950 Silver (Minerve)Britannia Silver (958)
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 76 GPa11 Msi · Shear Modulus 28 GPa4.1 Msi · Bulk Modulus 101 GPa14.6 Msi · 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
Latent Heat of Fusion
Same in both: Specific Heat Capacity 236 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19 µm/m·K10.6 µin/in·°F · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 92 % IACS · Electrical Resistivity 1.87×10⁻⁸ Ω·m0.736 µΩ·in
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
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 70 / 100 · Castability 78 / 100 · Brazeability / Solderability 95 / 100 · Polishability 97 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 1,500 MJ/kg644,885 BTU/lb · Embodied Carbon (primary production) 105 kg CO₂/kg
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 7.3 MN·m/kg
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 | 950 Silver (Minerve) | Britannia Silver (958) |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
950 Silver (Minerve) vs Britannia Silver (958) — frequently asked
Is 950 Silver (Minerve) stronger than Britannia Silver (958)?
Yes. 950 Silver (Minerve) has a typical yield strength of 65 MPa (9.43 ksi) against 60 MPa (8.7 ksi) for Britannia Silver (958) — about 8% more. Tensile strength is 250 MPa (36.3 ksi) vs 240 MPa (34.8 ksi).
Which is cheaper, 950 Silver (Minerve) or Britannia Silver (958)?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, 950 Silver (Minerve) or Britannia Silver (958)?
950 Silver (Minerve). Its machinability rates good (60/100) against fair (45/100) for Britannia Silver (958).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 950 Silver (Minerve) 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.