Copper Alloy C60800-H80 vs C60800-O61
Copper Alloy · C60800 temper comparison
C60800-H80 and C60800-O61 are two conditions of the same copper alloy grade, C60800: H80 (hard drawn) versus O61 (annealed). The chemistry is identical, so every difference below comes from the condition. C60800-H80 is the stronger of the two: yield strength 400 MPa (58 ksi) against 186 MPa (27 ksi) for C60800-O61, about 115% more; tensile strength follows at 550 MPa (79.8 ksi) vs 415 MPa (60.2 ksi). In exchange, C60800-O61 is the more ductile: elongation 55% versus 15% for C60800-H80, and C60800-H80 is harder (158 HB vs 100 HB). C60800-O61 runs hotter in service (250°C vs 200°C continuous).
C60800-H80Choose it when strength drives the design.
C60800-O61Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C60800-H80 vs C60800-O61: 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
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
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 115 GPa16.7 Msi · Poisson's Ratio 0.32
Physical
Density and transition temperatures.
Same in both: Density 8.17 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,035°C1,895 °F · Liquidus Temperature 1,055°C1,931 °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 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.31 V
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: Brazeability / Solderability 45 / 100 · Polishability 70 / 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 350 L/kg41.9 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.
C60800-H80 vs C60800-O61 — frequently asked
Is C60800-H80 stronger than C60800-O61?
Yes. C60800-H80 has a typical yield strength of 400 MPa (58 ksi) against 186 MPa (27 ksi) for C60800-O61 — about 115% more. Tensile strength is 550 MPa (79.8 ksi) vs 415 MPa (60.2 ksi).
Which condition does FabDigit quote by default, H80 or O61?
O61 is the default C60800 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, C60800-H80 or C60800-O61?
C60800-H80, by a small margin. Both rate poor for machinability — 34/100 against 28/100 for C60800-O61; for welding the order is C60800-O61 first (very good, 70/100) then C60800-H80 (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C60800-H80 and C60800-O61 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.