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Precious Metal Pt90Rh10 Annealed vs Pt90Rh10 H-Drawn

Precious Metal · Pt90Rh10 temper comparison

Pt90Rh10 Annealed and Pt90Rh10 H-Drawn are two conditions of the same precious metal grade, Pt90Rh10: Annealed versus H-Drawn (hard drawn). The chemistry is identical, so every difference below comes from the condition. Pt90Rh10 H-Drawn is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 170 MPa (24.7 ksi) for Pt90Rh10 Annealed, about 3.6 times as much; tensile strength follows at 720 MPa (104 ksi) vs 320 MPa (46.4 ksi). In exchange, Pt90Rh10 Annealed is the more ductile: elongation 35% versus 3% for Pt90Rh10 H-Drawn, and Pt90Rh10 H-Drawn is harder (205 HB vs 88 HB). Pt90Rh10 Annealed runs hotter in service (1,450°C vs 600°C continuous). On the shop floor, Pt90Rh10 H-Drawn machines more easily (32 vs 22 out of 100) and Pt90Rh10 Annealed welds better (very good vs good).

Pt90Rh10 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Pt90Rh10 H-DrawnChoose it when strength drives the design, or when the part is machined in volume.

Pt90Rh10 Annealed vs Pt90Rh10 H-Drawn: properties

Pt90Rh10 AnnealedPt90Rh10 H-Drawn

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

320 MPa46.4 ksi
720 MPa104 ksi

Yield Strength (0.2% offset)

170 MPa24.7 ksi
620 MPa89.9 ksi

Elongation at Break

35%
3%

Shear Strength

200 MPa29 ksi
430 MPa62.4 ksi

Hardness, Brinell

88 HB
205 HB

Hardness, Vickers

90 HV
220 HV

Same in both: Elastic (Young's) Modulus 193 GPa28 Msi · Shear Modulus 71 GPa10.3 Msi · Bulk Modulus 285 GPa41.3 Msi · Poisson's Ratio 0.39

Physical

Density and transition temperatures.

Same in both: Density 19.97 g/cm³0.72 lb/in³ · Melting Point (Solidus) 1,850°C3,362 °F · Liquidus Temperature 1,860°C3,380 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

30 W/m·K17.3 BTU/hr·ft·°F
29 W/m·K16.8 BTU/hr·ft·°F

Max Service Temperature (continuous)

1,450°C2,642 °F
600°C1,112 °F

Same in both: Specific Heat Capacity 150 J/kg·K0.04 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9 µm/m·K5 µin/in·°F · Latent Heat of Fusion 118 J/g50.7 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

9.1 % IACS
8.8 % IACS

Electrical Resistivity

1.9×10⁻⁷ Ω·m7.48 µΩ·in
1.95×10⁻⁷ Ω·m7.68 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) 0.28 V · Corrosion Resistance 99 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

22 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
28%

Weldability

75 / 100
65 / 100

Formability (cold)

92 / 100
30 / 100

Same in both: Castability 45 / 100 · Brazeability / Solderability 60 / 100 · Polishability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 200,000 MJ/kg8.6×10⁷ BTU/lb · Embodied Carbon (primary production) 14,000 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.

50100200500101520Density (g/cm³)Yield strength (MPa) — log scalePt90Rh10

Pt90Rh10 Annealed vs Pt90Rh10 H-Drawn — frequently asked

Is Pt90Rh10 H-Drawn stronger than Pt90Rh10 Annealed?

Yes. Pt90Rh10 H-Drawn has a typical yield strength of 620 MPa (89.9 ksi) against 170 MPa (24.7 ksi) for Pt90Rh10 Annealed — about 3.6 times as much. Tensile strength is 720 MPa (104 ksi) vs 320 MPa (46.4 ksi).

Which condition does FabDigit quote by default, Annealed or H-Drawn?

Annealed is the default Pt90Rh10 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, Pt90Rh10 Annealed or Pt90Rh10 H-Drawn?

Pt90Rh10 H-Drawn, by a small margin. Both rate poor for machinability — 32/100 against 22/100 for Pt90Rh10 Annealed; for welding the order is Pt90Rh10 Annealed first (very good, 75/100) then Pt90Rh10 H-Drawn (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Pt90Rh10 Annealed and Pt90Rh10 H-Drawn 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.