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Copper Alloy C11000 vs Cu-DXP

Copper Alloy · grade comparison

Copper Alloy C11000 and Cu-DXP are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. C11000 runs hotter in service (250°C vs 200°C continuous) and C11000 conducts heat better (391 W/m·K vs 290 W/m·K). On the shop floor, Cu-DXP welds better (excellent vs fair).

C11000Choose it when the part sees heat.

Cu-DXPChoose it when it will be welded.

C11000 vs Cu-DXP: properties

C11000Cu-DXP

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

Shear Strength

152 MPa22 ksi
150 MPa21.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
70 MPa10.2 ksi

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% · Reduction in Area 75% · Hardness, Brinell 45 HB · Hardness, Vickers 50 HV

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,065°C1,949 °F
1,083°C1,981 °F

Same in both: Density 8.94 g/cm³0.32 lb/in³ · 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
290 W/m·K168 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
70 % IACS

Electrical Resistivity

1.71×10⁻⁸ Ω·m0.673 µΩ·in
2.46×10⁻⁸ Ω·m0.969 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.32 V
-0.25 V

Corrosion Resistance

60 / 100
62 / 100

Manufacturability

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

Weldability

35 / 100
88 / 100

Formability (cold)

98 / 100
95 / 100

Castability

40 / 100
70 / 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
57 MJ/kg24,506 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
3.8 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
250 L/kg30 gal/lb

Same in both: Typical Recycled Content 35%

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
84.3 mm²/s

Thermal Shock Resistance Index

43
32

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 scaleC11000Cu-DXP

Manufacturing and finishing

CapabilityC11000Cu-DXP
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-DXP — frequently asked

What is the difference between C11000 and Cu-DXP?

Copper Alloy C11000 and Cu-DXP are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. C11000 runs hotter in service (250°C vs 200°C continuous) and C11000 conducts heat better (391 W/m·K vs 290 W/m·K).

Which is cheaper, C11000 or Cu-DXP?

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-DXP?

Cu-DXP. Its weldability rates excellent (88/100) against fair (35/100) for C11000.

Ready to make it?

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