Precious Metal 90Ag-10Ni-H04 vs 90Ag-10Ni-H08
Precious Metal · 90Ag-10Ni temper comparison
90Ag-10Ni-H04 and 90Ag-10Ni-H08 are two conditions of the same precious metal grade, 90Ag-10Ni: H04 (full hard) versus H08 (spring hard). The chemistry is identical, so every difference below comes from the condition. 90Ag-10Ni-H08 is the stronger of the two: yield strength 420 MPa (60.9 ksi) against 320 MPa (46.4 ksi) for 90Ag-10Ni-H04, about 31% more; tensile strength follows at 480 MPa (69.6 ksi) vs 355 MPa (51.5 ksi). In exchange, 90Ag-10Ni-H04 is the more ductile: elongation 3% versus 2% for 90Ag-10Ni-H08, and 90Ag-10Ni-H08 is harder (118 HB vs 50 HB). 90Ag-10Ni-H08 is stiffer (95 GPa vs 88 GPa) and 90Ag-10Ni-H04 runs hotter in service (180°C vs 150°C continuous). On the shop floor, 90Ag-10Ni-H04 machines more easily (good vs fair) and 90Ag-10Ni-H08 welds better (good vs fair).
90Ag-10Ni-H04Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
90Ag-10Ni-H08Choose it when strength drives the design, or when it will be welded.
90Ag-10Ni-H04 vs 90Ag-10Ni-H08: 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.
Elastic (Young's) Modulus
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Bulk Modulus 108 GPa15.7 Msi · Reduction in Area 60%
Physical
Density and transition temperatures.
Liquidus Temperature
Same in both: Density 10.3 g/cm³0.37 lb/in³ · Melting Point (Solidus) 960°C1,760 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 85 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 40% · Castability 20 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 130 kg CO₂/kg
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.
90Ag-10Ni-H04 vs 90Ag-10Ni-H08 — frequently asked
Is 90Ag-10Ni-H08 stronger than 90Ag-10Ni-H04?
Yes. 90Ag-10Ni-H08 has a typical yield strength of 420 MPa (60.9 ksi) against 320 MPa (46.4 ksi) for 90Ag-10Ni-H04 — about 31% more. Tensile strength is 480 MPa (69.6 ksi) vs 355 MPa (51.5 ksi).
Which condition does FabDigit quote by default, H04 or H08?
O is the default 90Ag-10Ni condition in the FabDigit quote flow (neither H04 nor H08). 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, 90Ag-10Ni-H04 or 90Ag-10Ni-H08?
90Ag-10Ni-H04. Its machinability rates good (60/100) against fair (45/100) for 90Ag-10Ni-H08; for welding the order is 90Ag-10Ni-H08 first (good, 55/100) then 90Ag-10Ni-H04 (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 90Ag-10Ni-H04 and 90Ag-10Ni-H08 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.