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Precious Metal Pure Pd-H02 vs Pure Pd-H04

Precious Metal · Pure Pd temper comparison

Pure Pd-H02 and Pure Pd-H04 are two conditions of the same precious metal grade, Pure Pd: H02 (half hard) versus H04 (full hard). 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 215 MPa (31.2 ksi) for Pure Pd-H02, about 40% more; tensile strength follows at 340 MPa (49.3 ksi) vs 285 MPa (41.3 ksi). In exchange, Pure Pd-H02 is the more ductile: elongation 8% versus 3% for Pure Pd-H04, and Pure Pd-H04 is harder (106 HB vs 84 HB). Pure Pd-H02 runs hotter in service (250°C vs 200°C continuous).

Pure Pd-H02Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Pure Pd-H04Choose it when strength drives the design.

Pure Pd-H02 vs Pure Pd-H04: properties

Pure Pd-H02Pure Pd-H04

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

285 MPa41.3 ksi
340 MPa49.3 ksi

Yield Strength (0.2% offset)

215 MPa31.2 ksi
300 MPa43.5 ksi

Elongation at Break

8%
3%

Shear Strength

175 MPa25.4 ksi
205 MPa29.7 ksi

Hardness, Brinell

84 HB
106 HB

Hardness, Vickers

88 HV
112 HV

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)

250°C482 °F
200°C392 °F

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

15.6 % IACS
15.4 % IACS

Electrical Resistivity

1.1×10⁻⁷ Ω·m4.33 µΩ·in
1.12×10⁻⁷ Ω·m4.41 µΩ·in

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

48 / 100
55 / 100

Weldability

80 / 100
78 / 100

Formability (cold)

65 / 100
40 / 100

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.

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

Pure Pd-H02 vs Pure Pd-H04 — frequently asked

Is Pure Pd-H04 stronger than Pure Pd-H02?

Yes. Pure Pd-H04 has a typical yield strength of 300 MPa (43.5 ksi) against 215 MPa (31.2 ksi) for Pure Pd-H02 — about 40% more. Tensile strength is 340 MPa (49.3 ksi) vs 285 MPa (41.3 ksi).

Which condition does FabDigit quote by default, H02 or H04?

O is the default Pure Pd condition in the FabDigit quote flow (neither H02 nor H04). 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-H02 or Pure Pd-H04?

Pure Pd-H04. Its machinability rates good (55/100) against fair (48/100) for Pure Pd-H02.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Pure Pd-H02 and Pure Pd-H04 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.