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Copper Alloy C95500 vs CC498K

Copper Alloy · grade comparison

Copper Alloy C95500 and CC498K are both copper alloy grades. C95500 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 150 MPa (21.8 ksi) for CC498K, about 100% more; tensile strength follows at 700 MPa (102 ksi) vs 270 MPa (39.2 ksi). In exchange, CC498K is the more ductile: elongation 12% versus 8% for C95500, and C95500 is harder (192 HB vs 78 HB). C95500 is lighter (7.53 g/cm³ vs 8.8 g/cm³ for CC498K) and C95500 is stiffer (110 GPa vs 96 GPa). On the shop floor, CC498K machines more easily (very good vs fair), C95500 welds better (good vs poor), and CC498K sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).

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

CC498KChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C95500 vs CC498K: properties

C95500CC498K

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
96 GPa13.9 Msi

Shear Modulus

42 GPa6.1 Msi
36 GPa5.2 Msi

Bulk Modulus

102 GPa14.8 Msi
105 GPa15.2 Msi

Poisson's Ratio

0.32
0.34

Tensile Strength (Ultimate)

700 MPa102 ksi
270 MPa39.2 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
150 MPa21.8 ksi

Elongation at Break

8%
12%

Shear Strength

425 MPa61.6 ksi
205 MPa29.7 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
95 MPa13.8 ksi

Fracture Toughness (K_IC)

50 MPa·√m45.5 ksi·√in
—

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
18 J13.3 ft·lbf

Hardness, Brinell

192 HB
78 HB

Hardness, Rockwell B

92 HRB
41 HRB

Reduction in Area

—
12%

Hardness, Vickers

—
82 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
855°C1,571 °F

Liquidus Temperature

1,064°C1,947 °F
1,000°C1,832 °F

Thermal

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

Thermal Conductivity

42 W/m·K24.3 BTU/hr·ft·°F
62 W/m·K35.8 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

16.2 µm/m·K9 µin/in·°F
18.5 µm/m·K10.3 µin/in·°F

Latent Heat of Fusion

210 J/g90.3 BTU/lb
170 J/g73.1 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
250°C482 °F

Min Service Temperature

-100°C-148 °F
-200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8.5 % IACS
12.5 % IACS

Electrical Resistivity

2.03×10⁻⁷ Ω·m7.99 µΩ·in
1.38×10⁻⁷ Ω·m5.43 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.25 V

Corrosion Resistance

80 / 100
66 / 100

Manufacturability

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

Machinability

40 / 100
82 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
82%

Weldability

60 / 100
30 / 100

Formability (cold)

15 / 100
12 / 100

Castability

75 / 100
85 / 100

Brazeability / Solderability

30 / 100
70 / 100

Same in both: Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

60 MJ/kg25,795 BTU/lb
50 MJ/kg21,496 BTU/lb

Embodied Carbon (primary production)

4.2 kg CO₂/kg
3.5 kg CO₂/kg

Typical Recycled Content

40%
60%

Same in both: Embodied Water 250 L/kg30 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

93 kN·m/kg
31 kN·m/kg

Specific Stiffness (E / density)

14.6 MN·m/kg
10.9 MN·m/kg

Modulus of Resilience

409 kJ/m³
117 kJ/m³

Thermal Diffusivity

13.3 mm²/s
18.5 mm²/s

Thermal Shock Resistance Index

16
9

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 scaleC95500CC498K

Manufacturing and finishing

CapabilityC95500CC498K
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 CC498K — frequently asked

Is C95500 stronger than CC498K?

Yes. C95500 has a typical yield strength of 300 MPa (43.5 ksi) against 150 MPa (21.8 ksi) for CC498K — about 100% more. Tensile strength is 700 MPa (102 ksi) vs 270 MPa (39.2 ksi).

Which is cheaper, C95500 or CC498K?

CC498K 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 CC498K?

CC498K. Its machinability rates very good (82/100) against fair (40/100) for C95500; for welding the order is C95500 first (good, 60/100) then CC498K (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C95500 and CC498K 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.