Precious Metal Silver 925-O vs Silver 925-PH
Precious Metal · Silver 925 temper comparison
Silver 925-O and Silver 925-PH are two conditions of the same precious metal grade, Silver 925: O (annealed) versus PH (pre-hardened). The chemistry is identical, so every difference below comes from the condition. Silver 925-PH is the stronger of the two: yield strength 400 MPa (58 ksi) against 75 MPa (10.9 ksi) for Silver 925-O, about 5.3 times as much; tensile strength follows at 470 MPa (68.2 ksi) vs 280 MPa (40.6 ksi). In exchange, Silver 925-O is the more ductile: elongation 40% versus 6% for Silver 925-PH, and Silver 925-PH is harder (132 HB vs 58 HB). On the shop floor, Silver 925-PH machines more easily (very good vs good) and Silver 925-O welds better (good vs fair).
Silver 925-OChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Silver 925-PHChoose it when strength drives the design, or when the part is machined in volume.
Silver 925-O vs Silver 925-PH: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Shear Modulus 29 GPa4.2 Msi · Bulk Modulus 101 GPa14.6 Msi · Poisson's Ratio 0.37
Physical
Density and transition temperatures.
Same in both: Density 10.36 g/cm³0.37 lb/in³ · Melting Point (Solidus) 779°C1,434 °F · Liquidus Temperature 893°C1,639 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 237 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18.9 µm/m·K10.5 µin/in·°F · Latent Heat of Fusion 105 J/g45.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · 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) 0.1 V · Corrosion Resistance 75 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 80 / 100 · Brazeability / Solderability 90 / 100 · Polishability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 1,500 MJ/kg644,885 BTU/lb · Embodied Carbon (primary production) 110 kg CO₂/kg · Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 35%
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.
Silver 925-O vs Silver 925-PH — frequently asked
Is Silver 925-PH stronger than Silver 925-O?
Yes. Silver 925-PH has a typical yield strength of 400 MPa (58 ksi) against 75 MPa (10.9 ksi) for Silver 925-O — about 5.3 times as much. Tensile strength is 470 MPa (68.2 ksi) vs 280 MPa (40.6 ksi).
Which condition does FabDigit quote by default, O or PH?
O is the default Silver 925 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, Silver 925-O or Silver 925-PH?
Silver 925-PH. Its machinability rates very good (75/100) against good (55/100) for Silver 925-O; for welding the order is Silver 925-O first (good, 60/100) then Silver 925-PH (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Silver 925-O and Silver 925-PH 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.