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Copper Alloy C52100 vs C64710

Copper Alloy · grade comparison

Copper Alloy C52100 and C64710 are both copper alloy grades. C52100 is the stronger of the two: yield strength 585 MPa (84.8 ksi) against 480 MPa (69.6 ksi) for C64710, about 22% more; tensile strength follows at 660 MPa (95.7 ksi) vs 620 MPa (89.9 ksi). In exchange, C64710 is the more ductile: elongation 15% versus 10% for C52100, and C64710 is harder (180 HB vs 170 HB). C64710 is stiffer (131 GPa vs 110 GPa) and C64710 runs hotter in service (230°C vs 200°C continuous). On the shop floor, C64710 welds better (very good vs fair) and C64710 sits in a lower cost tier (high, $$$$) than C52100 (specialty, $$$$$).

C52100Choose it when strength drives the design.

C64710Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C52100 vs C64710: properties

C52100C64710

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
131 GPa19 Msi

Shear Modulus

41 GPa5.9 Msi
48 GPa7 Msi

Bulk Modulus

115 GPa16.7 Msi
125 GPa18.1 Msi

Tensile Strength (Ultimate)

660 MPa95.7 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

585 MPa84.8 ksi
480 MPa69.6 ksi

Elongation at Break

10%
15%

Shear Strength

400 MPa58 ksi
385 MPa55.8 ksi

Hardness, Brinell

170 HB
180 HB

Hardness, Rockwell B

87 HRB
88 HRB

Reduction in Area

—
35%

Charpy V-Notch Impact (RT)

—
40 J29.5 ft·lbf

Same in both: Poisson's Ratio 0.34 · Fatigue Strength (Endurance Limit) 230 MPa33.4 ksi · Hardness, Vickers 190 HV

Physical

Density and transition temperatures.

Melting Point (Solidus)

854°C1,569 °F
1,055°C1,931 °F

Liquidus Temperature

1,000°C1,832 °F
1,090°C1,994 °F

Same in both: Density 8.8 g/cm³0.32 lb/in³

Thermal

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

Thermal Conductivity

62 W/m·K35.8 BTU/hr·ft·°F
50 W/m·K28.9 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

18.4 µm/m·K10.2 µin/in·°F
17.6 µm/m·K9.8 µin/in·°F

Max Service Temperature (continuous)

200°C392 °F
230°C446 °F

Min Service Temperature

-200°C-328 °F
-196°C-321 °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

Electrical

Conductivity and insulation.

Electrical Conductivity

13 % IACS
25 % IACS

Electrical Resistivity

1.33×10⁻⁷ Ω·m5.24 µΩ·in
6.9×10⁻⁸ Ω·m2.72 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.27 V

Corrosion Resistance

68 / 100
72 / 100

Manufacturability

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

Machinability

30 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

40 / 100
70 / 100

Formability (cold)

50 / 100
40 / 100

Brazeability / Solderability

88 / 100
70 / 100

Castability

—
35 / 100

Same in both: Polishability 75 / 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
400 L/kg47.9 gal/lb

Typical Recycled Content

40%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
70 kN·m/kg

Specific Stiffness (E / density)

12.5 MN·m/kg
14.9 MN·m/kg

Modulus of Resilience

1,556 kJ/m³
879 kJ/m³

Thermal Diffusivity

18.7 mm²/s
15.1 mm²/s

Thermal Shock Resistance Index

20
13

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 scaleC52100C64710

Manufacturing and finishing

CapabilityC52100C64710
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 C64710 — frequently asked

Is C52100 stronger than C64710?

Yes. C52100 has a typical yield strength of 585 MPa (84.8 ksi) against 480 MPa (69.6 ksi) for C64710 — about 22% more. Tensile strength is 660 MPa (95.7 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, C52100 or C64710?

C64710 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 welds better, C52100 or C64710?

C64710. Its weldability rates very good (70/100) against fair (40/100) for C52100.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C52100 and C64710 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.