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Copper Alloy C52100 vs C64210

Copper Alloy · grade comparison

Copper Alloy C52100 and C64210 are both copper alloy grades. C52100 is the stronger of the two: yield strength 585 MPa (84.8 ksi) against 393 MPa (57 ksi) for C64210, about 49% more. In exchange, C64210 is the more ductile: elongation 22% versus 10% for C52100, and C64210 is harder (180 HB vs 170 HB). C64210 is lighter (7.69 g/cm³ vs 8.8 g/cm³ for C52100) and C64210 is stiffer (117 GPa vs 110 GPa). On the shop floor, C64210 machines more easily (good vs poor), C64210 welds better (good vs fair), and C64210 sits in a lower cost tier (high, $$$$) than C52100 (specialty, $$$$$).

C52100Choose it when strength drives the design.

C64210Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

C52100 vs C64210: properties

C52100C64210

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
117 GPa17 Msi

Shear Modulus

41 GPa5.9 Msi
44 GPa6.4 Msi

Poisson's Ratio

0.34
0.33

Tensile Strength (Ultimate)

660 MPa95.7 ksi
655 MPa95 ksi

Yield Strength (0.2% offset)

585 MPa84.8 ksi
393 MPa57 ksi

Elongation at Break

10%
22%

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
220 MPa31.9 ksi

Hardness, Brinell

170 HB
180 HB

Hardness, Rockwell B

87 HRB
85 HRB

Hardness, Vickers

190 HV
195 HV

Reduction in Area

—
35%

Compressive Strength

—
420 MPa60.9 ksi

Charpy V-Notch Impact (RT)

—
30 J22.1 ft·lbf

Same in both: Bulk Modulus 115 GPa16.7 Msi · Shear Strength 400 MPa58 ksi

Physical

Density and transition temperatures.

Density

8.8 g/cm³0.32 lb/in³
7.69 g/cm³0.28 lb/in³

Melting Point (Solidus)

854°C1,569 °F
1,027°C1,881 °F

Liquidus Temperature

1,000°C1,832 °F
1,046°C1,915 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

62 W/m·K35.8 BTU/hr·ft·°F
44 W/m·K25.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

18.4 µm/m·K10.2 µin/in·°F
18 µm/m·K10 µin/in·°F

Max Service Temperature (continuous)

200°C392 °F
260°C500 °F

Latent Heat of Fusion

—
205 J/g88.1 BTU/lb

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

13 % IACS
7 % IACS

Electrical Resistivity

1.33×10⁻⁷ Ω·m5.24 µΩ·in
2.46×10⁻⁷ Ω·m9.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.31 V

Corrosion Resistance

68 / 100
76 / 100

Manufacturability

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

Machinability

30 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
60%

Weldability

40 / 100
62 / 100

Formability (cold)

50 / 100
40 / 100

Brazeability / Solderability

88 / 100
35 / 100

Polishability

75 / 100
70 / 100

Castability

—
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

72 MJ/kg30,954 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

40%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
85 kN·m/kg

Specific Stiffness (E / density)

12.5 MN·m/kg
15.2 MN·m/kg

Modulus of Resilience

1,556 kJ/m³
660 kJ/m³

Thermal Diffusivity

18.7 mm²/s
15.2 mm²/s

Thermal Shock Resistance Index

20
14

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 scaleC52100C64210

Manufacturing and finishing

CapabilityC52100C64210
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$$$$$ Specialty$$$$ 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.

C52100 vs C64210 — frequently asked

Is C52100 stronger than C64210?

Yes. C52100 has a typical yield strength of 585 MPa (84.8 ksi) against 393 MPa (57 ksi) for C64210 — about 49% more. Tensile strength is 660 MPa (95.7 ksi) vs 655 MPa (95 ksi).

Which is cheaper, C52100 or C64210?

C64210 is the lower-cost material: it sits in the high tier ($$$$) while C52100 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, C52100 or C64210?

C64210. Its machinability rates good (55/100) against poor (30/100) for C52100; for welding the order is C64210 first (good, 62/100) then C52100 (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C52100 and C64210 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.