Precious Metal PdNi-H04 vs PdNi-M
Precious Metal · PdNi temper comparison
PdNi-H04 and PdNi-M are two conditions of the same precious metal grade, PdNi: H04 (full hard) versus M (thermomechanically controlled processed). The chemistry is identical, so every difference below comes from the condition. PdNi-H04 is the stronger of the two: yield strength 850 MPa (123 ksi) against 250 MPa (36.3 ksi) for PdNi-M, about 3.4 times as much; tensile strength follows at 950 MPa (138 ksi) vs 550 MPa (79.8 ksi). In exchange, PdNi-M is the more ductile: elongation 30% versus 2% for PdNi-H04, and PdNi-H04 is harder (270 HB vs 133 HB). PdNi-M runs hotter in service (600°C vs 300°C continuous). On the shop floor, PdNi-H04 machines more easily (fair vs poor) and PdNi-M welds better (good vs fair).
PdNi-H04Choose it when strength drives the design, or when the part is machined in volume.
PdNi-MChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
PdNi-H04 vs PdNi-M: 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
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 140 GPa20.3 Msi · Shear Modulus 53 GPa7.7 Msi · Bulk Modulus 185 GPa26.8 Msi · Poisson's Ratio 0.35
Physical
Density and transition temperatures.
Same in both: Density 11.3 g/cm³0.41 lb/in³ · Melting Point (Solidus) 1,275°C2,327 °F · Liquidus Temperature 1,305°C2,381 °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 285 J/kg·K0.07 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.3 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 185 J/g79.5 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) 0.2 V · Corrosion Resistance 85 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 55 / 100 · Brazeability / Solderability 80 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 58,000 MJ/kg2.49×10⁷ BTU/lb · Embodied Carbon (primary production) 3,100 kg CO₂/kg · Embodied Water 120,000 L/kg14,379 gal/lb · Typical Recycled Content 40%
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.
PdNi-H04 vs PdNi-M — frequently asked
Is PdNi-H04 stronger than PdNi-M?
Yes. PdNi-H04 has a typical yield strength of 850 MPa (123 ksi) against 250 MPa (36.3 ksi) for PdNi-M — about 3.4 times as much. Tensile strength is 950 MPa (138 ksi) vs 550 MPa (79.8 ksi).
Which condition does FabDigit quote by default, H04 or M?
M is the default PdNi 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, PdNi-H04 or PdNi-M?
PdNi-H04. Its machinability rates fair (40/100) against poor (28/100) for PdNi-M; for welding the order is PdNi-M first (good, 60/100) then PdNi-H04 (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in PdNi-H04 and PdNi-M 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.