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Copper Alloy C95500 vs CC499K

Copper Alloy · grade comparison

Copper Alloy C95500 and CC499K are both copper alloy grades. C95500 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 110 MPa (16 ksi) for CC499K, about 173% more; tensile strength follows at 700 MPa (102 ksi) vs 230 MPa (33.4 ksi). In exchange, CC499K is the more ductile: elongation 18% versus 8% for C95500, and C95500 is harder (192 HB vs 65 HB). C95500 is lighter (7.53 g/cm³ vs 8.8 g/cm³ for CC499K) and C95500 is stiffer (110 GPa vs 90 GPa). On the shop floor, CC499K machines more easily (very good vs fair), C95500 welds better (good vs poor), and CC499K sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).

C95500Choose it when strength drives the design, or when weight is the constraint.

CC499KChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C95500 vs CC499K: properties

C95500CC499K

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
90 GPa13.1 Msi

Shear Modulus

42 GPa6.1 Msi
36 GPa5.2 Msi

Bulk Modulus

102 GPa14.8 Msi
100 GPa14.5 Msi

Poisson's Ratio

0.32
0.34

Tensile Strength (Ultimate)

700 MPa102 ksi
230 MPa33.4 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
110 MPa16 ksi

Elongation at Break

8%
18%

Shear Strength

425 MPa61.6 ksi
190 MPa27.6 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
75 MPa10.9 ksi

Fracture Toughness (K_IC)

50 MPa·√m45.5 ksi·√in
—

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
14 J10.3 ft·lbf

Hardness, Brinell

192 HB
65 HB

Hardness, Rockwell B

92 HRB
35 HRB

Reduction in Area

—
20%

Compressive Strength

—
300 MPa43.5 ksi

Hardness, Vickers

—
70 HV

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,054°C1,929 °F
854°C1,569 °F

Liquidus Temperature

1,064°C1,947 °F
1,010°C1,850 °F

Thermal

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

Thermal Conductivity

42 W/m·K24.3 BTU/hr·ft·°F
70 W/m·K40.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

16.2 µm/m·K9 µin/in·°F
18 µm/m·K10 µin/in·°F

Latent Heat of Fusion

210 J/g90.3 BTU/lb
175 J/g75.2 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
230°C446 °F

Min Service Temperature

-100°C-148 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8.5 % IACS
15 % IACS

Electrical Resistivity

2.03×10⁻⁷ Ω·m7.99 µΩ·in
1.15×10⁻⁷ Ω·m4.53 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.27 V

Corrosion Resistance

80 / 100
64 / 100

Manufacturability

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

Machinability

40 / 100
78 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
84%

Weldability

60 / 100
30 / 100

Formability (cold)

15 / 100
10 / 100

Castability

75 / 100
88 / 100

Brazeability / Solderability

30 / 100
90 / 100

Polishability

70 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

60 MJ/kg25,795 BTU/lb
58 MJ/kg24,936 BTU/lb

Embodied Carbon (primary production)

4.2 kg CO₂/kg
3.9 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

40%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

93 kN·m/kg
26 kN·m/kg

Specific Stiffness (E / density)

14.6 MN·m/kg
10.2 MN·m/kg

Modulus of Resilience

409 kJ/m³
67 kJ/m³

Thermal Diffusivity

13.3 mm²/s
21.1 mm²/s

Thermal Shock Resistance Index

16
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 scaleC95500CC499K

Manufacturing and finishing

CapabilityC95500CC499K
CNC machiningYes—
Default conditionAs Cast—
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.

C95500 vs CC499K — frequently asked

Is C95500 stronger than CC499K?

Yes. C95500 has a typical yield strength of 300 MPa (43.5 ksi) against 110 MPa (16 ksi) for CC499K — about 173% more. Tensile strength is 700 MPa (102 ksi) vs 230 MPa (33.4 ksi).

Which is cheaper, C95500 or CC499K?

CC499K is the lower-cost material: it sits in the high tier ($$$$) while C95500 is specialty ($$$$$). 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, C95500 or CC499K?

CC499K. Its machinability rates very good (78/100) against fair (40/100) for C95500; for welding the order is C95500 first (good, 60/100) then CC499K (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C95500 and CC499K 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.