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Copper Alloy C52100 vs C63600

Copper Alloy · grade comparison

Copper Alloy C52100 and C63600 are both copper alloy grades. C52100 is the stronger of the two: yield strength 585 MPa (84.8 ksi) against 170 MPa (24.7 ksi) for C63600, about 3.4 times as much; tensile strength follows at 660 MPa (95.7 ksi) vs 415 MPa (60.2 ksi). In exchange, C63600 is the more ductile: elongation 45% versus 10% for C52100, and C52100 is harder (170 HB vs 105 HB). C63600 is lighter (8.3 g/cm³ vs 8.8 g/cm³ for C52100) and C63600 is stiffer (117 GPa vs 110 GPa). On the shop floor, C63600 welds better (very good vs fair) and C63600 sits in a lower cost tier (high, $$$$) than C52100 (specialty, $$$$$).

C52100Choose it when strength drives the design.

C63600Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

C52100 vs C63600: properties

C52100C63600

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
125 GPa18.1 Msi

Poisson's Ratio

0.34
0.33

Tensile Strength (Ultimate)

660 MPa95.7 ksi
415 MPa60.2 ksi

Yield Strength (0.2% offset)

585 MPa84.8 ksi
170 MPa24.7 ksi

Elongation at Break

10%
45%

Shear Strength

400 MPa58 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
165 MPa23.9 ksi

Hardness, Brinell

170 HB
105 HB

Hardness, Rockwell B

87 HRB
60 HRB

Hardness, Vickers

190 HV
—

Reduction in Area

—
55%

Charpy V-Notch Impact (RT)

—
60 J44.3 ft·lbf

Physical

Density and transition temperatures.

Density

8.8 g/cm³0.32 lb/in³
8.3 g/cm³0.3 lb/in³

Melting Point (Solidus)

854°C1,569 °F
1,027°C1,881 °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
45 W/m·K26 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

18.4 µm/m·K10.2 µin/in·°F
16.7 µm/m·K9.3 µin/in·°F

Max Service Temperature (continuous)

200°C392 °F
300°C572 °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
9.5 % IACS

Electrical Resistivity

1.33×10⁻⁷ Ω·m5.24 µΩ·in
1.92×10⁻⁷ Ω·m7.56 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.25 V

Corrosion Resistance

68 / 100
72 / 100

Manufacturability

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

Machinability

30 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

40 / 100
70 / 100

Formability (cold)

50 / 100
90 / 100

Brazeability / Solderability

88 / 100
45 / 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
62 MJ/kg26,655 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
3.8 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
50 kN·m/kg

Specific Stiffness (E / density)

12.5 MN·m/kg
14.1 MN·m/kg

Modulus of Resilience

1,556 kJ/m³
124 kJ/m³

Thermal Diffusivity

18.7 mm²/s
14.4 mm²/s

Thermal Shock Resistance Index

20
10

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 scaleC52100C63600

Manufacturing and finishing

CapabilityC52100C63600
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 C63600 — frequently asked

Is C52100 stronger than C63600?

Yes. C52100 has a typical yield strength of 585 MPa (84.8 ksi) against 170 MPa (24.7 ksi) for C63600 — about 3.4 times as much. Tensile strength is 660 MPa (95.7 ksi) vs 415 MPa (60.2 ksi).

Which is cheaper, C52100 or C63600?

C63600 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 C63600?

C63600. Its machinability rates fair (35/100) against poor (30/100) for C52100; for welding the order is C63600 first (very good, 70/100) then C52100 (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C52100 and C63600 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.