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Copper Alloy C75700-H02 vs C75700-H10

Copper Alloy · C75700 temper comparison

C75700-H02 and C75700-H10 are two conditions of the same copper alloy grade, C75700: H02 (half hard) versus H10 (extra spring hard). The chemistry is identical, so every difference below comes from the condition. C75700-H10 is the stronger of the two: yield strength 660 MPa (95.7 ksi) against 420 MPa (60.9 ksi) for C75700-H02, about 57% more; tensile strength follows at 710 MPa (103 ksi) vs 496 MPa (71.9 ksi). In exchange, C75700-H02 is the more ductile: elongation 10% versus 2% for C75700-H10, and C75700-H10 is harder (208 HB vs 135 HB). C75700-H02 runs hotter in service (200°C vs 175°C continuous).

C75700-H02Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C75700-H10Choose it when strength drives the design.

C75700-H02 vs C75700-H10: properties

C75700-H02C75700-H10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

124 GPa18 Msi
127 GPa18.4 Msi

Tensile Strength (Ultimate)

496 MPa71.9 ksi
710 MPa103 ksi

Yield Strength (0.2% offset)

420 MPa60.9 ksi
660 MPa95.7 ksi

Elongation at Break

10%
2%

Shear Strength

320 MPa46.4 ksi
405 MPa58.7 ksi

Fatigue Strength (Endurance Limit)

180 MPa26.1 ksi
215 MPa31.2 ksi

Hardness, Brinell

135 HB
208 HB

Hardness, Rockwell B

74 HRB
91 HRB

Hardness, Vickers

145 HV
220 HV

Same in both: Shear Modulus 46 GPa6.7 Msi · Bulk Modulus 130 GPa18.9 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.72 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,004°C1,839 °F · Liquidus Temperature 1,038°C1,900 °F

Thermal

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

Max Service Temperature (continuous)

200°C392 °F
175°C347 °F

Same in both: Thermal Conductivity 45 W/m·K26 BTU/hr·ft·°F · Specific Heat Capacity 377 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 180 J/g77.4 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

9 % IACS
8.5 % IACS

Electrical Resistivity

1.92×10⁻⁷ Ω·m7.56 µΩ·in
2.03×10⁻⁷ Ω·m7.99 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

65 / 100
62 / 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

30 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

40 / 100
33 / 100

Formability (cold)

55 / 100
15 / 100

Same in both: Brazeability / Solderability 80 / 100 · Polishability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 65 MJ/kg27,945 BTU/lb · Embodied Carbon (primary production) 4.6 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 40%

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 scaleC75700

C75700-H02 vs C75700-H10 — frequently asked

Is C75700-H10 stronger than C75700-H02?

Yes. C75700-H10 has a typical yield strength of 660 MPa (95.7 ksi) against 420 MPa (60.9 ksi) for C75700-H02 — about 57% more. Tensile strength is 710 MPa (103 ksi) vs 496 MPa (71.9 ksi).

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

H02 is the default C75700 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, C75700-H02 or C75700-H10?

C75700-H10. Its machinability rates fair (38/100) against poor (30/100) for C75700-H02; for welding the order is C75700-H02 first (fair, 40/100) then C75700-H10 (poor, 33/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C75700-H02 and C75700-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.