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Copper Alloy C11000 vs Cu-DLP

Copper Alloy · grade comparison

Copper Alloy C11000 and Cu-DLP are both copper alloy grades. Cu-DLP is the stronger of the two: yield strength 100 MPa (14.5 ksi) against 69 MPa (10 ksi) for C11000, about 45% more; tensile strength follows at 235 MPa (34.1 ksi) vs 221 MPa (32.1 ksi). Cu-DLP is harder — 52 HB against 45 HB for C11000 — which matters for wear surfaces and threads. 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, Cu-DLP welds better (very good vs fair).

C11000Choose it when the part sees heat.

Cu-DLPChoose it when strength drives the design, or when surface hardness matters.

C11000 vs Cu-DLP: properties

C11000Cu-DLP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

221 MPa32.1 ksi
235 MPa34.1 ksi

Yield Strength (0.2% offset)

69 MPa10 ksi
100 MPa14.5 ksi

Elongation at Break

45%
42%

Reduction in Area

75%
—

Shear Strength

152 MPa22 ksi
150 MPa21.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
80 MPa11.6 ksi

Hardness, Brinell

45 HB
52 HB

Hardness, Vickers

50 HV
60 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.

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
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

Min Service Temperature

-200°C-328 °F
-250°C-418 °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

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
-0.22 V

Corrosion Resistance

60 / 100
62 / 100

Manufacturability

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

Machinability

25 / 100
30 / 100

Weldability

35 / 100
70 / 100

Formability (cold)

98 / 100
95 / 100

Castability

40 / 100
45 / 100

Brazeability / Solderability

92 / 100
98 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Polishability 85 / 100

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
250 L/kg30 gal/lb

Same in both: Embodied Carbon (primary production) 3.6 kg CO₂/kg · 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
43 kJ/m³

Thermal Diffusivity

113.6 mm²/s
101.7 mm²/s

Thermal Shock Resistance Index

43
40

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-DLP

Manufacturing and finishing

CapabilityC11000Cu-DLP
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-DLP — frequently asked

Is Cu-DLP stronger than C11000?

Yes. Cu-DLP has a typical yield strength of 100 MPa (14.5 ksi) against 69 MPa (10 ksi) for C11000 — about 45% more. Tensile strength is 235 MPa (34.1 ksi) vs 221 MPa (32.1 ksi).

Which is cheaper, C11000 or Cu-DLP?

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 is easier to machine, C11000 or Cu-DLP?

Cu-DLP, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for C11000; for welding the order is Cu-DLP first (very good, 70/100) then C11000 (fair, 35/100).

Ready to make it?

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