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Copper Alloy C11000 vs C80700

Copper Alloy · grade comparison

Copper Alloy C11000 and C80700 are both copper alloy grades. C11000 is the stronger of the two: yield strength 69 MPa (10 ksi) against 62 MPa (8.99 ksi) for C80700, about 11% more; tensile strength follows at 221 MPa (32.1 ksi) vs 172 MPa (24.9 ksi). C11000 is the more ductile: elongation 45% versus 40% for C80700, and C11000 is harder (50 HV vs 46 HV). C11000 runs hotter in service (250°C vs 200°C continuous) and C11000 conducts heat better (391 W/m·K vs 350 W/m·K). On the shop floor, C80700 welds better (very good vs fair).

C11000Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

C80700Choose it when it will be welded.

C11000 vs C80700: properties

C11000C80700

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

221 MPa32.1 ksi
172 MPa24.9 ksi

Yield Strength (0.2% offset)

69 MPa10 ksi
62 MPa9 ksi

Elongation at Break

45%
40%

Reduction in Area

75%
40%

Shear Strength

152 MPa22 ksi
130 MPa18.9 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
62 MPa9 ksi

Hardness, Brinell

45 HB
44 HB

Hardness, Vickers

50 HV
46 HV

Charpy V-Notch Impact (RT)

—
45 J33.2 ft·lbf

Hardness, Rockwell B

—
20 HRB

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) 1,065°C1,949 °F · Liquidus Temperature 1,083°C1,981 °F

Thermal

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

Thermal Conductivity

391 W/m·K226 BTU/hr·ft·°F
350 W/m·K202 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

17 µm/m·K9.4 µin/in·°F
17.7 µm/m·K9.8 µin/in·°F

Max Service Temperature (continuous)

250°C482 °F
200°C392 °F

Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

101 % IACS
92 % IACS

Electrical Resistivity

1.71×10⁻⁸ Ω·m0.673 µΩ·in
1.87×10⁻⁸ Ω·m0.736 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.32 V
-0.36 V

Same in both: Corrosion Resistance 60 / 100

Manufacturability

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

Weldability

35 / 100
80 / 100

Formability (cold)

98 / 100
90 / 100

Brazeability / Solderability

92 / 100
90 / 100

Polishability

85 / 100
70 / 100

Same in both: Machinability 25 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Castability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

260 L/kg31.2 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

35%
45%

Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

25 kN·m/kg
19 kN·m/kg

Modulus of Resilience

20 kJ/m³
16 kJ/m³

Thermal Diffusivity

113.6 mm²/s
101.7 mm²/s

Thermal Shock Resistance Index

43
29

Same in both: Specific Stiffness (E / density) 13.1 MN·m/kg

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 scaleC11000C80700

Manufacturing and finishing

CapabilityC11000C80700
CNC machiningYes—
Sheet metalYes—
3D printingYes—
Default conditionO—
Relative cost$$$$ High$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
Chrome PlatingYes—
ElectropolishingYes—
Nickel PlatingYes—
PaintingYes—
Tin PlatingYes—

They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C11000 vs C80700 — frequently asked

Is C11000 stronger than C80700?

Yes. C11000 has a typical yield strength of 69 MPa (10 ksi) against 62 MPa (8.99 ksi) for C80700 — about 11% more. Tensile strength is 221 MPa (32.1 ksi) vs 172 MPa (24.9 ksi).

Which is cheaper, C11000 or C80700?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, C11000 or C80700?

C80700. Its weldability rates very good (80/100) against fair (35/100) for C11000.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C11000 and C80700 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.