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Copper Alloy C77000-H02 vs C77000-H10

Copper Alloy · C77000 temper comparison

C77000-H02 and C77000-H10 are two conditions of the same copper alloy grade, C77000: H02 (half hard) versus H10 (extra spring hard). The chemistry is identical, so every difference below comes from the condition. C77000-H10 is the stronger of the two: yield strength 745 MPa (108 ksi) against 505 MPa (73.2 ksi) for C77000-H02, about 48% more; tensile strength follows at 825 MPa (120 ksi) vs 565 MPa (81.9 ksi). In exchange, C77000-H02 is the more ductile: elongation 12% versus 2% for C77000-H10, and C77000-H10 is harder (230 HB vs 160 HB). C77000-H02 runs hotter in service (175°C vs 150°C continuous).

C77000-H02Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C77000-H10Choose it when strength drives the design.

C77000-H02 vs C77000-H10: properties

C77000-H02C77000-H10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

565 MPa81.9 ksi
825 MPa120 ksi

Yield Strength (0.2% offset)

505 MPa73.2 ksi
745 MPa108 ksi

Elongation at Break

12%
2%

Shear Strength

365 MPa52.9 ksi
470 MPa68.2 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
255 MPa37 ksi

Hardness, Brinell

160 HB
230 HB

Hardness, Rockwell B

84 HRB
96 HRB

Hardness, Vickers

170 HV
245 HV

Same in both: Elastic (Young's) Modulus 124 GPa18 Msi · Shear Modulus 47 GPa6.8 Msi · Bulk Modulus 121 GPa17.5 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Same in both: Density 8.72 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,010°C1,850 °F · Liquidus Temperature 1,054°C1,929 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

29 W/m·K16.8 BTU/hr·ft·°F
28 W/m·K16.2 BTU/hr·ft·°F

Max Service Temperature (continuous)

175°C347 °F
150°C302 °F

Same in both: Specific Heat Capacity 376 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.2 µm/m·K9 µin/in·°F · Latent Heat of Fusion 190 J/g81.7 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

5.5 % IACS
5.3 % IACS

Electrical Resistivity

3.11×10⁻⁷ Ω·m12.2 µΩ·in
3.25×10⁻⁷ Ω·m12.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

62 / 100
58 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

28 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
25%

Weldability

40 / 100
35 / 100

Formability (cold)

50 / 100
12 / 100

Same in both: Brazeability / Solderability 78 / 100 · Polishability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 78 MJ/kg33,534 BTU/lb · Embodied Carbon (primary production) 5.6 kg CO₂/kg · Embodied Water 260 L/kg31.2 gal/lb · Typical Recycled Content 35%

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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC77000

C77000-H02 vs C77000-H10 — frequently asked

Is C77000-H10 stronger than C77000-H02?

Yes. C77000-H10 has a typical yield strength of 745 MPa (108 ksi) against 505 MPa (73.2 ksi) for C77000-H02 — about 48% more. Tensile strength is 825 MPa (120 ksi) vs 565 MPa (81.9 ksi).

Which condition does FabDigit quote by default, H02 or H10?

H02 is the default C77000 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 welds better, C77000-H02 or C77000-H10?

C77000-H02. Its weldability rates fair (40/100) against fair (35/100) for C77000-H10.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C77000-H02 and C77000-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.