Precious Metal IC-Ag99.95-H08 vs IC-Ag99.95-O
Precious Metal · IC-Ag99.95 temper comparison
IC-Ag99.95-H08 and IC-Ag99.95-O are two conditions of the same precious metal grade, IC-Ag99.95: H08 (spring hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. IC-Ag99.95-H08 is the stronger of the two: yield strength 320 MPa (46.4 ksi) against 55 MPa (7.98 ksi) for IC-Ag99.95-O, about 5.8 times as much; tensile strength follows at 360 MPa (52.2 ksi) vs 150 MPa (21.8 ksi). In exchange, IC-Ag99.95-O is the more ductile: elongation 48% versus 2% for IC-Ag99.95-H08, and IC-Ag99.95-H08 is harder (102 HB vs 26 HB). IC-Ag99.95-H08 is stiffer (78 GPa vs 74 GPa) and IC-Ag99.95-O runs hotter in service (300°C vs 130°C continuous). On the shop floor, IC-Ag99.95-H08 machines more easily (good vs fair) and IC-Ag99.95-O welds better (very good vs good).
IC-Ag99.95-H08Choose it when strength drives the design, or when the part is machined in volume.
IC-Ag99.95-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
IC-Ag99.95-H08 vs IC-Ag99.95-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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Shear Modulus 29 GPa4.2 Msi · Bulk Modulus 100 GPa14.5 Msi · Poisson's Ratio 0.37
Physical
Density and transition temperatures.
Same in both: Density 10.49 g/cm³0.38 lb/in³ · Melting Point (Solidus) 962°C1,763 °F · Liquidus Temperature 962°C1,763 °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 235 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19.5 µm/m·K10.8 µin/in·°F · Latent Heat of Fusion 105 J/g45.1 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) 0.05 V · Corrosion Resistance 82 / 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 85 / 100 · Brazeability / Solderability 97 / 100 · Polishability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 1,600 MJ/kg687,877 BTU/lb · Embodied Carbon (primary production) 110 kg CO₂/kg · Embodied Water 2,500 L/kg300 gal/lb · Typical Recycled Content 30%
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.
IC-Ag99.95-H08 vs IC-Ag99.95-O — frequently asked
Is IC-Ag99.95-H08 stronger than IC-Ag99.95-O?
Yes. IC-Ag99.95-H08 has a typical yield strength of 320 MPa (46.4 ksi) against 55 MPa (7.98 ksi) for IC-Ag99.95-O — about 5.8 times as much. Tensile strength is 360 MPa (52.2 ksi) vs 150 MPa (21.8 ksi).
Which condition does FabDigit quote by default, H08 or O?
Cast is the default IC-Ag99.95 condition in the FabDigit quote flow (neither H08 nor O). 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, IC-Ag99.95-H08 or IC-Ag99.95-O?
IC-Ag99.95-H08. Its machinability rates good (55/100) against fair (40/100) for IC-Ag99.95-O; for welding the order is IC-Ag99.95-O first (very good, 75/100) then IC-Ag99.95-H08 (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in IC-Ag99.95-H08 and IC-Ag99.95-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.