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Copper Alloy C1100 vs C11000

Copper Alloy · grade comparison

Copper Alloy C1100 and C11000 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). On the shop floor, C1100 welds better (45 vs 35 out of 100).

C1100Choose it when it will be welded.

C11000Choose it when the part sees heat.

C1100 vs C11000: properties

C1100C11000

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

225 MPa32.6 ksi
221 MPa32.1 ksi

Reduction in Area

70%
75%

Shear Strength

150 MPa21.8 ksi
152 MPa22 ksi

Fatigue Strength (Endurance Limit)

70 MPa10.2 ksi
76 MPa11 ksi

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
—

Hardness, Vickers

48 HV
50 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 · Yield Strength (0.2% offset) 69 MPa10 ksi · Elongation at Break 45% · Hardness, Brinell 45 HB

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 Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Same in both: Thermal Conductivity 391 W/m·K226 BTU/hr·ft·°F · 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.

Same in both: Electrical Conductivity 101 % IACS · Electrical Resistivity 1.71×10⁻⁸ Ω·m0.673 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.3 V
-0.32 V

Corrosion Resistance

62 / 100
60 / 100

Manufacturability

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

Machinability

18 / 100
25 / 100

Weldability

45 / 100
35 / 100

Polishability

80 / 100
85 / 100

Castability

—
40 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Formability (cold) 98 / 100 · Brazeability / Solderability 92 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

3.8 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

320 L/kg38.3 gal/lb
260 L/kg31.2 gal/lb

Same in both: Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Thermal Shock Resistance Index

42
43

Same in both: Specific Strength (UTS / density) 25 kN·m/kg · Specific Stiffness (E / density) 13.1 MN·m/kg · Modulus of Resilience 20 kJ/m³ · Thermal Diffusivity 113.6 mm²/s

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 scaleC11000C1100

Manufacturing and finishing

CapabilityC1100C11000
CNC machining—Yes
Sheet metal—Yes
3D printing—Yes
Default condition—O
Relative cost$$$$ High$$$$ High
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
Chrome Plating—Yes
Electropolishing—Yes
Nickel Plating—Yes
Painting—Yes
Tin Plating—Yes

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

C1100 vs C11000 — frequently asked

What is the difference between C1100 and C11000?

Copper Alloy C1100 and C11000 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).

Which is cheaper, C1100 or C11000?

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, C1100 or C11000?

C11000, by a small margin. Both rate poor for machinability — 25/100 against 18/100 for C1100; for welding the order is C1100 first (fair, 45/100) then C11000 (fair, 35/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C1100 and C11000 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.