Precious Metal Pt87Rh13 Annealed vs Pt87Rh13 HardDrawn
Precious Metal · Pt87Rh13 temper comparison
Pt87Rh13 Annealed and Pt87Rh13 HardDrawn are two conditions of the same precious metal grade, Pt87Rh13: Annealed versus HardDrawn. The chemistry is identical, so every difference below comes from the condition. Pt87Rh13 HardDrawn is the stronger of the two: yield strength 700 MPa (102 ksi) against 190 MPa (27.6 ksi) for Pt87Rh13 Annealed, about 3.7 times as much; tensile strength follows at 820 MPa (119 ksi) vs 380 MPa (55.1 ksi). In exchange, Pt87Rh13 Annealed is the more ductile: elongation 32% versus 2% for Pt87Rh13 HardDrawn, and Pt87Rh13 HardDrawn is harder (205 HB vs 85 HB). Pt87Rh13 Annealed runs hotter in service (1,400°C vs 1,000°C continuous). On the shop floor, Pt87Rh13 Annealed welds better (80 vs 70 out of 100).
Pt87Rh13 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Pt87Rh13 HardDrawnChoose it when strength drives the design.
Pt87Rh13 Annealed vs Pt87Rh13 HardDrawn: 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.
Pt87Rh13 AnnealedPt87Rh13 HardDrawn
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 75 GPa10.9 Msi · Bulk Modulus 285 GPa41.3 Msi · Poisson's Ratio 0.39
Physical
Density and transition temperatures.
Same in both: Density 19.6 g/cm³0.71 lb/in³ · Melting Point (Solidus) 1,860°C3,380 °F · Liquidus Temperature 1,885°C3,425 °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 135 J/kg·K0.03 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.9 µm/m·K4.9 µin/in·°F · Latent Heat of Fusion 118 J/g50.7 BTU/lb · Min Service Temperature -250°C-418 °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) 0.3 V · Corrosion Resistance 99 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Castability 45 / 100 · Brazeability / Solderability 70 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 300,000 MJ/kg1.29×10⁸ BTU/lb · Embodied Carbon (primary production) 22,000 kg CO₂/kg · 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.
Pt87Rh13 Annealed vs Pt87Rh13 HardDrawn — frequently asked
Is Pt87Rh13 HardDrawn stronger than Pt87Rh13 Annealed?
Yes. Pt87Rh13 HardDrawn has a typical yield strength of 700 MPa (102 ksi) against 190 MPa (27.6 ksi) for Pt87Rh13 Annealed — about 3.7 times as much. Tensile strength is 820 MPa (119 ksi) vs 380 MPa (55.1 ksi).
Which condition does FabDigit quote by default, Annealed or HardDrawn?
Annealed is the default Pt87Rh13 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, Pt87Rh13 Annealed or Pt87Rh13 HardDrawn?
Pt87Rh13 HardDrawn, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for Pt87Rh13 Annealed; for welding the order is Pt87Rh13 Annealed first (very good, 80/100) then Pt87Rh13 HardDrawn (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pt87Rh13 Annealed and Pt87Rh13 HardDrawn 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.