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Copper Alloy C84800 vs CC496K

Copper Alloy · grade comparison

Copper Alloy C84800 and CC496K are both copper alloy grades. C84800 is the stronger of the two: yield strength 124 MPa (18 ksi) against 110 MPa (16 ksi) for CC496K, about 13% more; tensile strength follows at 262 MPa (38 ksi) vs 220 MPa (31.9 ksi). C84800 is the more ductile: elongation 35% versus 9% for CC496K, and CC496K is harder (68 HB vs 55 HB). C84800 is lighter (8.55 g/cm³ vs 9.25 g/cm³ for CC496K) and C84800 is stiffer (86 GPa vs 78 GPa). On the shop floor, CC496K sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).

C84800Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

CC496KChoose it when cost is the deciding factor.

C84800 vs CC496K: properties

C84800CC496K

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
78 GPa11.3 Msi

Shear Modulus

32 GPa4.6 Msi
28 GPa4.1 Msi

Bulk Modulus

105 GPa15.2 Msi
79 GPa11.5 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
220 MPa31.9 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
110 MPa16 ksi

Elongation at Break

35%
9%

Shear Strength

190 MPa27.6 ksi
152 MPa22 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
65 MPa9.4 ksi

Hardness, Brinell

55 HB
68 HB

Reduction in Area

—
11%

Compressive Strength

—
255 MPa37 ksi

Charpy V-Notch Impact (RT)

—
10 J7.4 ft·lbf

Hardness, Rockwell B

—
28 HRB

Hardness, Vickers

—
71 HV

Same in both: Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.55 g/cm³0.31 lb/in³
9.25 g/cm³0.33 lb/in³

Melting Point (Solidus)

843°C1,549 °F
762°C1,404 °F

Liquidus Temperature

1,010°C1,850 °F
930°C1,706 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
52 W/m·K30 BTU/hr·ft·°F

Specific Heat Capacity

377 J/kg·K0.09 BTU/lb·°F
340 J/kg·K0.08 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

18 µm/m·K10 µin/in·°F
18.5 µm/m·K10.3 µin/in·°F

Latent Heat of Fusion

170 J/g73.1 BTU/lb
165 J/g70.9 BTU/lb

Min Service Temperature

-196°C-321 °F
-100°C-148 °F

Same in both: Max Service Temperature (continuous) 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
11 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
1.57×10⁻⁷ Ω·m6.18 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.26 V

Corrosion Resistance

58 / 100
62 / 100

Manufacturability

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

Machinability

88 / 100
90 / 100

Weldability

20 / 100
12 / 100

Castability

90 / 100
85 / 100

Brazeability / Solderability

60 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

—
72%

Formability (cold)

—
5 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

250 L/kg30 gal/lb
210 L/kg25.2 gal/lb

Typical Recycled Content

85%
70%

Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
24 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
8.4 MN·m/kg

Modulus of Resilience

89 kJ/m³
78 kJ/m³

Thermal Diffusivity

22.3 mm²/s
16.5 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 scaleC84800CC496K

Manufacturing and finishing

CapabilityC84800CC496K
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 CC496K — frequently asked

Is C84800 stronger than CC496K?

Yes. C84800 has a typical yield strength of 124 MPa (18 ksi) against 110 MPa (16 ksi) for CC496K — about 13% more. Tensile strength is 262 MPa (38 ksi) vs 220 MPa (31.9 ksi).

Which is cheaper, C84800 or CC496K?

CC496K 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 welds better, C84800 or CC496K?

C84800. Its weldability rates poor (20/100) against not recommended (12/100) for CC496K.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84800 and CC496K 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.