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Copper Alloy C1020 vs C14500

Copper Alloy · grade comparison

Copper Alloy C1020 and C14500 are both copper alloy grades. C14500 is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 69 MPa (10 ksi) for C1020, about 4.0 times as much; tensile strength follows at 310 MPa (45 ksi) vs 221 MPa (32.1 ksi). In exchange, C1020 is the more ductile: elongation 45% versus 18% for C14500, and C14500 is harder (85 HB vs 40 HB). C1020 runs hotter in service (250°C vs 200°C continuous) and C1020 conducts heat better (391 W/m·K vs 350 W/m·K). On the shop floor, C14500 machines more easily (excellent vs poor) and C1020 welds better (very good vs poor).

C1020Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C14500Choose it when strength drives the design, or when the part is machined in volume.

C1020 vs C14500: properties

C1020C14500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

115 GPa16.7 Msi
117 GPa17 Msi

Tensile Strength (Ultimate)

221 MPa32.1 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

69 MPa10 ksi
275 MPa39.9 ksi

Elongation at Break

45%
18%

Reduction in Area

75%
—

Shear Strength

152 MPa22 ksi
195 MPa28.3 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
95 MPa13.8 ksi

Hardness, Brinell

40 HB
85 HB

Hardness, Vickers

48 HV
—

Hardness, Rockwell B

—
40 HRB

Same in both: 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)

1,083°C1,981 °F
1,051°C1,924 °F

Liquidus Temperature

1,083°C1,981 °F
1,065°C1,949 °F

Same in both: Density 8.94 g/cm³0.32 lb/in³

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
17.6 µm/m·K9.8 µin/in·°F

Max Service Temperature (continuous)

250°C482 °F
200°C392 °F

Min Service Temperature

-269°C-452 °F
-200°C-328 °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)

-0.3 V
-0.2 V

Corrosion Resistance

60 / 100
65 / 100

Manufacturability

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

Machinability

25 / 100
85 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
—

Weldability

75 / 100
25 / 100

Formability (cold)

98 / 100
40 / 100

Castability

40 / 100
—

Brazeability / Solderability

95 / 100
90 / 100

Polishability

85 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

3.8 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

25%
35%

Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

25 kN·m/kg
35 kN·m/kg

Specific Stiffness (E / density)

12.9 MN·m/kg
13.1 MN·m/kg

Modulus of Resilience

21 kJ/m³
323 kJ/m³

Thermal Diffusivity

113.6 mm²/s
101.7 mm²/s

Thermal Shock Resistance Index

44
53

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 scaleC14500C1020

Manufacturing and finishing

CapabilityC1020C14500
CNC machining—Yes
Sheet metal—Yes
Default condition—H02
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.

C1020 vs C14500 — frequently asked

Is C14500 stronger than C1020?

Yes. C14500 has a typical yield strength of 275 MPa (39.9 ksi) against 69 MPa (10 ksi) for C1020 — about 4.0 times as much. Tensile strength is 310 MPa (45 ksi) vs 221 MPa (32.1 ksi).

Which is cheaper, C1020 or C14500?

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, C1020 or C14500?

C14500. Its machinability rates excellent (85/100) against poor (25/100) for C1020; for welding the order is C1020 first (very good, 75/100) then C14500 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C1020 and C14500 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.