Precious Metal Pt950 vs Silver 925
Precious Metal · grade comparison
Precious Metal Pt950 and Silver 925 are both precious metal grades, both jewelry precious metal. Pt950 is the stronger of the two: yield strength 130 MPa (18.9 ksi) against 75 MPa (10.9 ksi) for Silver 925, about 73% more; tensile strength follows at 310 MPa (45 ksi) vs 280 MPa (40.6 ksi). In exchange, Silver 925 is the more ductile: elongation 40% versus 35% for Pt950, and Pt950 is harder (105 HB vs 58 HB). Silver 925 is lighter (10.36 g/cm³ vs 20.1 g/cm³ for Pt950) and Pt950 is stiffer (172 GPa vs 76 GPa). On the shop floor, Silver 925 machines more easily (good vs poor) and Pt950 welds better (excellent vs good).
Pt950Choose it when strength drives the design, or when the part sees heat.
Silver 925Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
Pt950 vs Silver 925: 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Reduction in Area
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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 35%
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 | Pt950 | Silver 925 |
|---|---|---|
| Default condition | O | O |
| Relative cost | $$$$$ Specialty | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Pt950 vs Silver 925 — frequently asked
Is Pt950 stronger than Silver 925?
Yes. Pt950 has a typical yield strength of 130 MPa (18.9 ksi) against 75 MPa (10.9 ksi) for Silver 925 — about 73% more. Tensile strength is 310 MPa (45 ksi) vs 280 MPa (40.6 ksi).
Which is cheaper, Pt950 or Silver 925?
Both sit in the same relative cost tier ($$$$$, specialty); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Pt950 or Silver 925?
Silver 925. Its machinability rates good (55/100) against poor (30/100) for Pt950; for welding the order is Pt950 first (excellent, 85/100) then Silver 925 (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pt950 and Silver 925 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.