Precious Metal 92Ag-8SnO2-O vs 92Ag-8SnO2 PM-EXT
Precious Metal · 92Ag-8SnO2 temper comparison
92Ag-8SnO2-O and 92Ag-8SnO2 PM-EXT are two conditions of the same precious metal grade, 92Ag-8SnO2: O (annealed) versus PM-EXT (as-sintered / extruded). The chemistry is identical, so every difference below comes from the condition. 92Ag-8SnO2 PM-EXT is the stronger of the two: yield strength 140 MPa (20.3 ksi) against 110 MPa (16 ksi) for 92Ag-8SnO2-O, about 27% more; tensile strength follows at 245 MPa (35.5 ksi) vs 225 MPa (32.6 ksi). In exchange, 92Ag-8SnO2-O is the more ductile: elongation 22% versus 15% for 92Ag-8SnO2 PM-EXT, and 92Ag-8SnO2 PM-EXT is harder (65 HB vs 57 HB). 92Ag-8SnO2-O runs hotter in service (250°C vs 200°C continuous).
92Ag-8SnO2-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
92Ag-8SnO2 PM-EXTChoose it when strength drives the design.
92Ag-8SnO2-O vs 92Ag-8SnO2 PM-EXT: 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
Shear Strength
Hardness, Brinell
Hardness, Vickers
Same in both: Shear Modulus 32 GPa4.6 Msi · Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.37
Physical
Density and transition temperatures.
Same in both: Density 10.1 g/cm³0.36 lb/in³ · Melting Point (Solidus) 961°C1,762 °F · Liquidus Temperature 961°C1,762 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 240 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19 µm/m·K10.6 µin/in·°F · Latent Heat of Fusion 100 J/g43 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) 0.05 V · Corrosion Resistance 88 / 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: Brazeability / Solderability 85 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 1,450 MJ/kg623,388 BTU/lb · Embodied Carbon (primary production) 110 kg CO₂/kg · Embodied Water 2,000 L/kg240 gal/lb · Typical Recycled Content 40%
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.
92Ag-8SnO2-O vs 92Ag-8SnO2 PM-EXT — frequently asked
Is 92Ag-8SnO2 PM-EXT stronger than 92Ag-8SnO2-O?
Yes. 92Ag-8SnO2 PM-EXT has a typical yield strength of 140 MPa (20.3 ksi) against 110 MPa (16 ksi) for 92Ag-8SnO2-O — about 27% more. Tensile strength is 245 MPa (35.5 ksi) vs 225 MPa (32.6 ksi).
Which condition does FabDigit quote by default, O or PM-EXT?
O is the default 92Ag-8SnO2 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 welds better, 92Ag-8SnO2-O or 92Ag-8SnO2 PM-EXT?
92Ag-8SnO2-O. Its weldability rates poor (25/100) against poor (20/100) for 92Ag-8SnO2 PM-EXT.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 92Ag-8SnO2-O and 92Ag-8SnO2 PM-EXT 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.