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Copper Alloy C10700-H02 vs C10700-H04

Copper Alloy · C10700 temper comparison

C10700-H02 and C10700-H04 are two conditions of the same copper alloy grade, C10700: H02 (half hard) versus H04 (full hard). The chemistry is identical, so every difference below comes from the condition. C10700-H04 is the stronger of the two: yield strength 310 MPa (45 ksi) against 250 MPa (36.3 ksi) for C10700-H02, about 24% more; tensile strength follows at 345 MPa (50 ksi) vs 290 MPa (42.1 ksi). In exchange, C10700-H02 is the more ductile: elongation 14% versus 6% for C10700-H04, and C10700-H04 is harder (95 HB vs 75 HB).

C10700-H02Choose it when the part is bent, formed or impact-loaded.

C10700-H04Choose it when strength drives the design.

C10700-H02 vs C10700-H04: properties

C10700-H02C10700-H04

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

290 MPa42.1 ksi
345 MPa50 ksi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
310 MPa45 ksi

Elongation at Break

14%
6%

Reduction in Area

60%
55%

Shear Strength

185 MPa26.8 ksi
200 MPa29 ksi

Fatigue Strength (Endurance Limit)

105 MPa15.2 ksi
115 MPa16.7 ksi

Hardness, Brinell

75 HB
95 HB

Hardness, Rockwell B

40 HRB
52 HRB

Hardness, Vickers

85 HV
105 HV

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.94 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,083°C1,981 °F · Liquidus Temperature 1,083°C1,981 °F

Thermal

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

Thermal Conductivity

388 W/m·K224 BTU/hr·ft·°F
386 W/m·K223 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.7 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

100 % IACS
99 % IACS

Electrical Resistivity

1.72×10⁻⁸ Ω·m0.677 µΩ·in
1.74×10⁻⁸ Ω·m0.685 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 58 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

20%
25%

Formability (cold)

80 / 100
60 / 100

Same in both: Machinability 30 / 100 · Weldability 60 / 100 · Brazeability / Solderability 95 / 100 · Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 380 L/kg45.5 gal/lb · Typical Recycled Content 30%

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 scaleC10700

C10700-H02 vs C10700-H04 — frequently asked

Is C10700-H04 stronger than C10700-H02?

Yes. C10700-H04 has a typical yield strength of 310 MPa (45 ksi) against 250 MPa (36.3 ksi) for C10700-H02 — about 24% more. Tensile strength is 345 MPa (50 ksi) vs 290 MPa (42.1 ksi).

Which condition does FabDigit quote by default, H02 or H04?

H02 is the default C10700 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 C10700-H02 over C10700-H04?

Pick C10700-H02 when the part is bent, formed or impact-loaded. Pick C10700-H04 when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C10700-H02 and C10700-H04 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.