Copper Alloy C16500-H08 vs C16500-H10
Copper Alloy · C16500 temper comparison
C16500-H08 and C16500-H10 are two conditions of the same copper alloy grade, C16500: H08 (spring hard) versus H10 (extra spring hard). The chemistry is identical, so every difference below comes from the condition. Both yield at about 496 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (spring hard versus extra spring hard). C16500-H08 is the more ductile: elongation 2% versus 1.5% for C16500-H10, and C16500-H10 is harder (158 HV vs 150 HV).
C16500-H08Choose it when the part is bent, formed or impact-loaded.
C16500-H08 vs C16500-H10: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy 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 copper alloy 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 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 138 GPa20 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.89 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,030°C1,886 °F · Liquidus Temperature 1,076°C1,969 °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 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.6 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Min Service Temperature -250°C-418 °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 68 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 40 / 100 · Castability 40 / 100 · Brazeability / Solderability 80 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 25%
Strength versus weight
Yield strength against density for every copper alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
C16500-H08 vs C16500-H10 — frequently asked
What is the difference between C16500-H08 and C16500-H10?
C16500-H08 and C16500-H10 are two conditions of the same copper alloy grade, C16500: H08 (spring hard) versus H10 (extra spring hard). The chemistry is identical, so every difference below comes from the condition. Both yield at about 496 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (spring hard versus extra spring hard).
Which condition does FabDigit quote by default, H08 or H10?
H04 is the default C16500 condition in the FabDigit quote flow (neither H08 nor H10). 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.
When should I choose C16500-H08 over C16500-H10?
Pick C16500-H08 when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C16500-H08 and C16500-H10 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.