Precious Metal PSr70-AB vs PSr70 Cast
Precious Metal · PSr70 temper comparison
PSr70-AB and PSr70 Cast are two conditions of the same precious metal grade, PSr70: AB (as built (as printed)) versus Cast (as cast). The chemistry is identical, so every difference below comes from the condition. PSr70-AB is the stronger of the two: yield strength 150 MPa (21.8 ksi) against 130 MPa (18.9 ksi) for PSr70 Cast, about 15% more; tensile strength follows at 300 MPa (43.5 ksi) vs 280 MPa (40.6 ksi). PSr70-AB is the more ductile: elongation 18% versus 15% for PSr70 Cast, and PSr70-AB is harder (80 HB vs 75 HB).
PSr70-ABChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
PSr70-AB vs PSr70 Cast: 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 31 GPa4.5 Msi · Bulk Modulus 103 GPa14.9 Msi · Poisson's Ratio 0.36
Physical
Density and transition temperatures.
Same in both: Density 9.85 g/cm³0.36 lb/in³ · Melting Point (Solidus) 730°C1,346 °F · Liquidus Temperature 755°C1,391 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 255 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 130 J/g55.9 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) 0 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Weldability 30 / 100 · Castability 80 / 100 · Brazeability / Solderability 98 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 1,100 MJ/kg472,915 BTU/lb · Embodied Carbon (primary production) 95 kg CO₂/kg · Embodied Water 3,000 L/kg359 gal/lb · Typical Recycled Content 50%
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.
PSr70-AB vs PSr70 Cast — frequently asked
Is PSr70-AB stronger than PSr70 Cast?
Yes. PSr70-AB has a typical yield strength of 150 MPa (21.8 ksi) against 130 MPa (18.9 ksi) for PSr70 Cast — about 15% more. Tensile strength is 300 MPa (43.5 ksi) vs 280 MPa (40.6 ksi).
Which condition does FabDigit quote by default, AB or Cast?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which is easier to machine, PSr70-AB or PSr70 Cast?
PSr70 Cast, by a small margin. Both rate good for machinability — 60/100 against 55/100 for PSr70-AB.
Ready to make it?
Upload a CAD file and FabDigit prices the part in PSr70-AB and PSr70 Cast 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.