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Copper Alloy C52100 vs C63000

Copper Alloy · grade comparison

Copper Alloy C52100 and C63000 are both copper alloy grades. C52100 is the stronger of the two: yield strength 585 MPa (84.8 ksi) against 415 MPa (60.2 ksi) for C63000, about 41% more. In exchange, C63000 is the more ductile: elongation 15% versus 10% for C52100, and C63000 is harder (197 HB vs 170 HB). C63000 is lighter (7.58 g/cm³ vs 8.8 g/cm³ for C52100) and C63000 is stiffer (117 GPa vs 110 GPa). On the shop floor, C63000 welds better (good vs fair).

C52100Choose it when strength drives the design.

C63000Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

C52100 vs C63000: properties

C52100C63000

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

Bulk Modulus

115 GPa16.7 Msi
108 GPa15.7 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

660 MPa95.7 ksi
760 MPa110 ksi

Yield Strength (0.2% offset)

585 MPa84.8 ksi
415 MPa60.2 ksi

Elongation at Break

10%
15%

Shear Strength

400 MPa58 ksi
450 MPa65.3 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
250 MPa36.3 ksi

Hardness, Brinell

170 HB
197 HB

Hardness, Rockwell B

87 HRB
92 HRB

Hardness, Vickers

190 HV
—

Reduction in Area

—
25%

Fracture Toughness (K_IC)

—
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

—
25 J18.4 ft·lbf

Physical

Density and transition temperatures.

Density

8.8 g/cm³0.32 lb/in³
7.58 g/cm³0.27 lb/in³

Melting Point (Solidus)

854°C1,569 °F
1,043°C1,909 °F

Liquidus Temperature

1,000°C1,832 °F
1,054°C1,929 °F

Thermal

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

Thermal Conductivity

62 W/m·K35.8 BTU/hr·ft·°F
38.9 W/m·K22.5 BTU/hr·ft·°F

Specific Heat Capacity

377 J/kg·K0.09 BTU/lb·°F
419 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

200°C392 °F
300°C572 °F

Latent Heat of Fusion

—
210 J/g90.3 BTU/lb

Same in both: 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).

Corrosion Resistance

68 / 100
78 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

40 / 100
65 / 100

Formability (cold)

50 / 100
25 / 100

Brazeability / Solderability

88 / 100
35 / 100

Polishability

75 / 100
70 / 100

Same in both: Machinability 30 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

72 MJ/kg30,954 BTU/lb
62 MJ/kg26,655 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
3.9 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

40%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
100 kN·m/kg

Specific Stiffness (E / density)

12.5 MN·m/kg
15.4 MN·m/kg

Modulus of Resilience

1,556 kJ/m³
736 kJ/m³

Thermal Diffusivity

18.7 mm²/s
12.2 mm²/s

Thermal Shock Resistance Index

20
16

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 scaleC52100C63000

Manufacturing and finishing

CapabilityC52100C63000
Default condition—HR50
Relative cost$$$$$ Specialty$$$$$ Specialty
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 9 finishes: Chrome Plating, Copper Plating, Electroless Nickel (EN), Electropolishing, Gold Plating, Nickel Plating, Painting, Silver Plating, Tin Plating.

C52100 vs C63000 — frequently asked

Is C52100 stronger than C63000?

Yes. C52100 has a typical yield strength of 585 MPa (84.8 ksi) against 415 MPa (60.2 ksi) for C63000 — about 41% more. Tensile strength is 660 MPa (95.7 ksi) vs 760 MPa (110 ksi).

Which is cheaper, C52100 or C63000?

Both sit in the same relative cost tier ($$$$$, specialty); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, C52100 or C63000?

C63000. Its weldability rates good (65/100) against fair (40/100) for C52100.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C52100 and C63000 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.