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Copper Alloy C11000 vs CuAg0.04P

Copper Alloy · grade comparison

Copper Alloy C11000 and CuAg0.04P are both copper alloy grades. CuAg0.04P is the stronger of the two: yield strength 200 MPa (29 ksi) against 69 MPa (10 ksi) for C11000, about 190% more; tensile strength follows at 265 MPa (38.4 ksi) vs 221 MPa (32.1 ksi). In exchange, C11000 is the more ductile: elongation 45% versus 18% for CuAg0.04P, and CuAg0.04P is harder (85 HB vs 45 HB). On the shop floor, CuAg0.04P welds better (excellent vs fair).

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

CuAg0.04PChoose it when strength drives the design, or when it will be welded.

C11000 vs CuAg0.04P: properties

C11000CuAg0.04P

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

117 GPa17 Msi
122 GPa17.7 Msi

Shear Modulus

44 GPa6.4 Msi
45 GPa6.5 Msi

Tensile Strength (Ultimate)

221 MPa32.1 ksi
265 MPa38.4 ksi

Yield Strength (0.2% offset)

69 MPa10 ksi
200 MPa29 ksi

Elongation at Break

45%
18%

Reduction in Area

75%
65%

Shear Strength

152 MPa22 ksi
180 MPa26.1 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
100 MPa14.5 ksi

Hardness, Brinell

45 HB
85 HB

Hardness, Vickers

50 HV
90 HV

Hardness, Rockwell B

—
48 HRB

Same in both: Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.94 g/cm³0.32 lb/in³
8.93 g/cm³0.32 lb/in³

Same in both: 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
360 W/m·K208 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

17 µm/m·K9.4 µin/in·°F
17.5 µm/m·K9.7 µin/in·°F

Min Service Temperature

-200°C-328 °F
-253°C-423 °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 · Max Service Temperature (continuous) 250°C482 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

101 % IACS
94 % IACS

Electrical Resistivity

1.71×10⁻⁸ Ω·m0.673 µΩ·in
1.83×10⁻⁸ Ω·m0.72 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
68 / 100

Manufacturability

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

Machinability

25 / 100
28 / 100

Weldability

35 / 100
85 / 100

Formability (cold)

98 / 100
70 / 100

Castability

40 / 100
65 / 100

Brazeability / Solderability

92 / 100
95 / 100

Polishability

85 / 100
80 / 100

Same in both: 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
320 L/kg38.3 gal/lb

Typical Recycled Content

35%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

25 kN·m/kg
30 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
13.7 MN·m/kg

Modulus of Resilience

20 kJ/m³
164 kJ/m³

Thermal Diffusivity

113.6 mm²/s
104.7 mm²/s

Thermal Shock Resistance Index

43
45

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 scaleC11000CuAg0.04P

Manufacturing and finishing

CapabilityC11000CuAg0.04P
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 CuAg0.04P — frequently asked

Is CuAg0.04P stronger than C11000?

Yes. CuAg0.04P has a typical yield strength of 200 MPa (29 ksi) against 69 MPa (10 ksi) for C11000 — about 190% more. Tensile strength is 265 MPa (38.4 ksi) vs 221 MPa (32.1 ksi).

Which is cheaper, C11000 or CuAg0.04P?

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 CuAg0.04P?

CuAg0.04P. Its weldability rates excellent (85/100) against fair (35/100) for C11000.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C11000 and CuAg0.04P 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.