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Copper Alloy C84800 vs CC484K

Copper Alloy · grade comparison

Copper Alloy C84800 and CC484K are both copper alloy grades. CC484K is the stronger of the two: yield strength 200 MPa (29 ksi) against 124 MPa (18 ksi) for C84800, about 61% more; tensile strength follows at 330 MPa (47.9 ksi) vs 262 MPa (38 ksi). In exchange, C84800 is the more ductile: elongation 35% versus 10% for CC484K, and CC484K is harder (105 HB vs 55 HB). CC484K is stiffer (105 GPa vs 86 GPa) and CC484K runs hotter in service (260°C vs 200°C continuous). On the shop floor, C84800 machines more easily (excellent vs fair) and CC484K sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).

C84800Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

CC484KChoose it when strength drives the design, or when the part sees heat.

C84800 vs CC484K: properties

C84800CC484K

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
105 GPa15.2 Msi

Shear Modulus

32 GPa4.6 Msi
40 GPa5.8 Msi

Bulk Modulus

105 GPa15.2 Msi
110 GPa16 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
330 MPa47.9 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
200 MPa29 ksi

Elongation at Break

35%
10%

Shear Strength

190 MPa27.6 ksi
240 MPa34.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
105 MPa15.2 ksi

Hardness, Brinell

55 HB
105 HB

Reduction in Area

—
11%

Compressive Strength

—
500 MPa72.5 ksi

Charpy V-Notch Impact (RT)

—
9 J6.6 ft·lbf

Hardness, Rockwell B

—
60 HRB

Hardness, Vickers

—
110 HV

Same in both: Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.55 g/cm³0.31 lb/in³
8.8 g/cm³0.32 lb/in³

Melting Point (Solidus)

843°C1,549 °F
835°C1,535 °F

Liquidus Temperature

1,010°C1,850 °F
1,000°C1,832 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
46 W/m·K26.6 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

170 J/g73.1 BTU/lb
175 J/g75.2 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
260°C500 °F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
10 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.27 V

Corrosion Resistance

58 / 100
70 / 100

Manufacturability

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

Machinability

88 / 100
45 / 100

Castability

90 / 100
72 / 100

Polishability

55 / 100
70 / 100

Machinability Rating (AISI 1212 = 100 %)

—
30%

Formability (cold)

—
5 / 100

Same in both: Weldability 20 / 100 · Brazeability / Solderability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
62 MJ/kg26,655 BTU/lb

Embodied Carbon (primary production)

3 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
320 L/kg38.3 gal/lb

Typical Recycled Content

85%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
38 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
11.9 MN·m/kg

Modulus of Resilience

89 kJ/m³
190 kJ/m³

Thermal Diffusivity

22.3 mm²/s
13.9 mm²/s

Thermal Shock Resistance Index

12
8

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 scaleC84800CC484K

Manufacturing and finishing

CapabilityC84800CC484K
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.

C84800 vs CC484K — frequently asked

Is CC484K stronger than C84800?

Yes. CC484K has a typical yield strength of 200 MPa (29 ksi) against 124 MPa (18 ksi) for C84800 — about 61% more. Tensile strength is 330 MPa (47.9 ksi) vs 262 MPa (38 ksi).

Which is cheaper, C84800 or CC484K?

CC484K is the lower-cost material: it sits in the high tier ($$$$) while C84800 is specialty ($$$$$). 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, C84800 or CC484K?

C84800. Its machinability rates excellent (88/100) against fair (45/100) for CC484K.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84800 and CC484K 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.