Precious Metal Pure Pd-H04 vs Pure Pd-O
Precious Metal · Pure Pd temper comparison
Pure Pd-H04 and Pure Pd-O are two conditions of the same precious metal grade, Pure Pd: H04 (full hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. Pure Pd-H04 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 55 MPa (7.98 ksi) for Pure Pd-O, about 5.5 times as much; tensile strength follows at 340 MPa (49.3 ksi) vs 180 MPa (26.1 ksi). In exchange, Pure Pd-O is the more ductile: elongation 32% versus 3% for Pure Pd-H04, and Pure Pd-H04 is harder (106 HB vs 38 HB). Pure Pd-O runs hotter in service (500°C vs 200°C continuous). On the shop floor, Pure Pd-H04 machines more easily (good vs fair).
Pure Pd-H04Choose it when strength drives the design, or when the part is machined in volume.
Pure Pd-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Pure Pd-H04 vs Pure Pd-O: 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 121 GPa17.5 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 181 GPa26.3 Msi · Poisson's Ratio 0.39 · Reduction in Area 80%
Physical
Density and transition temperatures.
Same in both: Density 12.02 g/cm³0.43 lb/in³ · Melting Point (Solidus) 1,554°C2,829 °F · Liquidus Temperature 1,554°C2,829 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 71.8 W/m·K41.5 BTU/hr·ft·°F · Specific Heat Capacity 244 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.8 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 157 J/g67.5 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) 0.25 V · Corrosion Resistance 95 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 35% · Castability 65 / 100 · Brazeability / Solderability 90 / 100 · Polishability 92 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 120,000 MJ/kg5.16×10⁷ BTU/lb · Embodied Carbon (primary production) 12,000 kg CO₂/kg · Typical Recycled Content 28%
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.
Pure Pd-H04 vs Pure Pd-O — frequently asked
Is Pure Pd-H04 stronger than Pure Pd-O?
Yes. Pure Pd-H04 has a typical yield strength of 300 MPa (43.5 ksi) against 55 MPa (7.98 ksi) for Pure Pd-O — about 5.5 times as much. Tensile strength is 340 MPa (49.3 ksi) vs 180 MPa (26.1 ksi).
Which condition does FabDigit quote by default, H04 or O?
O is the default Pure Pd 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, Pure Pd-H04 or Pure Pd-O?
Pure Pd-H04. Its machinability rates good (55/100) against fair (35/100) for Pure Pd-O; for welding the order is Pure Pd-O first (excellent, 85/100) then Pure Pd-H04 (very good, 78/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pure Pd-H04 and Pure Pd-O 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.