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Copper Alloy C84800 vs CC493K

Copper Alloy · grade comparison

Copper Alloy C84800 and CC493K are both copper alloy grades. CC493K is the stronger of the two: yield strength 155 MPa (22.5 ksi) against 124 MPa (18 ksi) for C84800, about 25% more; tensile strength follows at 300 MPa (43.5 ksi) vs 262 MPa (38 ksi). In exchange, C84800 is the more ductile: elongation 35% versus 16% for CC493K, and CC493K is harder (75 HB vs 55 HB). CC493K is stiffer (97 GPa vs 86 GPa) and C84800 conducts heat better (72 W/m·K vs 58 W/m·K). On the shop floor, CC493K sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).

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

CC493KChoose it when strength drives the design, or when cost is the deciding factor.

C84800 vs CC493K: properties

C84800CC493K

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
97 GPa14.1 Msi

Shear Modulus

32 GPa4.6 Msi
37 GPa5.4 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
300 MPa43.5 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
155 MPa22.5 ksi

Elongation at Break

35%
16%

Shear Strength

190 MPa27.6 ksi
195 MPa28.3 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
90 MPa13.1 ksi

Hardness, Brinell

55 HB
75 HB

Compressive Strength

—
480 MPa69.6 ksi

Charpy V-Notch Impact (RT)

—
12 J8.9 ft·lbf

Hardness, Rockwell B

—
40 HRB

Hardness, Vickers

—
79 HV

Same in both: Bulk Modulus 105 GPa15.2 Msi · 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
855°C1,571 °F

Liquidus Temperature

1,010°C1,850 °F
975°C1,787 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
58 W/m·K33.5 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

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 · Latent Heat of Fusion 170 J/g73.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
12 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
1.44×10⁻⁷ Ω·m5.67 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
59 / 100

Manufacturability

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

Machinability

88 / 100
85 / 100

Weldability

20 / 100
15 / 100

Castability

90 / 100
88 / 100

Brazeability / Solderability

60 / 100
62 / 100

Polishability

55 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

—
80%

Formability (cold)

—
8 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
260 L/kg31.2 gal/lb

Typical Recycled Content

85%
75%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
34 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
11 MN·m/kg

Modulus of Resilience

89 kJ/m³
124 kJ/m³

Thermal Diffusivity

22.3 mm²/s
17.5 mm²/s

Thermal Shock Resistance Index

12
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 scaleC84800CC493K

Manufacturing and finishing

CapabilityC84800CC493K
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 CC493K — frequently asked

Is CC493K stronger than C84800?

Yes. CC493K has a typical yield strength of 155 MPa (22.5 ksi) against 124 MPa (18 ksi) for C84800 — about 25% more. Tensile strength is 300 MPa (43.5 ksi) vs 262 MPa (38 ksi).

Which is cheaper, C84800 or CC493K?

CC493K 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 CC493K?

C84800. Its weldability rates poor (20/100) against poor (15/100) for CC493K.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84800 and CC493K 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.