Copper Alloy C26000-H02 vs C26000-O
Copper Alloy · C26000 temper comparison
C26000-H02 and C26000-O are two conditions of the same copper alloy grade, C26000: H02 (half hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. C26000-H02 is the stronger of the two: yield strength 359 MPa (52.1 ksi) against 105 MPa (15.2 ksi) for C26000-O, about 3.4 times as much; tensile strength follows at 427 MPa (61.9 ksi) vs 325 MPa (47.1 ksi). In exchange, C26000-O is the more ductile: elongation 62% versus 23% for C26000-H02, and C26000-H02 is harder (125 HB vs 55 HB). C26000-O runs hotter in service (200°C vs 150°C continuous).
C26000-H02Choose it when strength drives the design.
C26000-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C26000-H02 vs C26000-O: 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
Same in both: Elastic (Young's) Modulus 110 GPa16 Msi · Shear Modulus 41 GPa5.9 Msi · Bulk Modulus 115 GPa16.7 Msi · Poisson's Ratio 0.35 · Hardness, Vickers 60 HV
Physical
Density and transition temperatures.
Same in both: Density 8.53 g/cm³0.31 lb/in³ · Melting Point (Solidus) 915°C1,679 °F · Liquidus Temperature 955°C1,751 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 121 W/m·K69.9 BTU/hr·ft·°F · Specific Heat Capacity 375 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19.9 µm/m·K11.1 µin/in·°F · Latent Heat of Fusion 165 J/g70.9 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 28 % IACS · Electrical Resistivity 6.2×10⁻⁸ Ω·m2.44 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V · Corrosion Resistance 50 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Same in both: Machinability 30 / 100 · Machinability Rating (AISI 1212 = 100 %) 30% · Weldability 40 / 100 · Castability 25 / 100 · Brazeability / Solderability 90 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.5 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 45%
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.
C26000-H02 vs C26000-O — frequently asked
Is C26000-H02 stronger than C26000-O?
Yes. C26000-H02 has a typical yield strength of 359 MPa (52.1 ksi) against 105 MPa (15.2 ksi) for C26000-O — about 3.4 times as much. Tensile strength is 427 MPa (61.9 ksi) vs 325 MPa (47.1 ksi).
Which condition does FabDigit quote by default, H02 or O?
O is the default C26000 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.
When should I choose C26000-H02 over C26000-O?
Pick C26000-H02 when strength drives the design. Pick C26000-O when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C26000-H02 and C26000-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.