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Copper Alloy C11000 vs Cu-HCP

Copper Alloy · grade comparison

Copper Alloy C11000 and Cu-HCP are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. C11000 is harder — 45 HB against 42 HB for Cu-HCP — which matters for wear surfaces and threads. C11000 runs hotter in service (250°C vs 200°C continuous). On the shop floor, Cu-HCP welds better (very good vs fair).

C11000Choose it when surface hardness matters, or when the part sees heat.

Cu-HCPChoose it when it will be welded.

C11000 vs Cu-HCP: properties

C11000Cu-HCP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

221 MPa32.1 ksi
230 MPa33.4 ksi

Yield Strength (0.2% offset)

69 MPa10 ksi
70 MPa10.2 ksi

Reduction in Area

75%
—

Shear Strength

152 MPa22 ksi
150 MPa21.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
75 MPa10.9 ksi

Hardness, Brinell

45 HB
42 HB

Hardness, Vickers

50 HV
45 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 · Elongation at Break 45%

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
385 W/m·K222 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

17 µm/m·K9.4 µin/in·°F
17.6 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
98 % IACS

Electrical Resistivity

1.71×10⁻⁸ Ω·m0.673 µΩ·in
1.76×10⁻⁸ Ω·m0.693 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.32 V
-0.2 V

Corrosion Resistance

60 / 100
65 / 100

Manufacturability

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

Weldability

35 / 100
75 / 100

Formability (cold)

98 / 100
92 / 100

Castability

40 / 100
55 / 100

Brazeability / Solderability

92 / 100
95 / 100

Polishability

85 / 100
80 / 100

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

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

53 MJ/kg22,786 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Water

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

Typical Recycled Content

35%
30%

Same in both: 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
26 kN·m/kg

Modulus of Resilience

20 kJ/m³
21 kJ/m³

Thermal Diffusivity

113.6 mm²/s
111.9 mm²/s

Same in both: Specific Stiffness (E / density) 13.1 MN·m/kg · Thermal Shock Resistance Index 43

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 scaleC11000Cu-HCP

Manufacturing and finishing

CapabilityC11000Cu-HCP
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 Cu-HCP — frequently asked

What is the difference between C11000 and Cu-HCP?

Copper Alloy C11000 and Cu-HCP are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. C11000 is harder — 45 HB against 42 HB for Cu-HCP — which matters for wear surfaces and threads.

Which is cheaper, C11000 or Cu-HCP?

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 Cu-HCP?

Cu-HCP. Its weldability rates very good (75/100) against fair (35/100) for C11000.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C11000 and Cu-HCP 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.