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Copper Alloy C84400 vs CC332G

Copper Alloy · grade comparison

Copper Alloy C84400 and CC332G are both copper alloy grades. CC332G is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 110 MPa (16 ksi) for C84400, about 127% more; tensile strength follows at 570 MPa (82.7 ksi) vs 234 MPa (33.9 ksi). In exchange, C84400 is the more ductile: elongation 26% versus 20% for CC332G, and CC332G is harder (120 HB vs 55 HB). CC332G is lighter (7.5 g/cm³ vs 8.8 g/cm³ for C84400) and CC332G is stiffer (110 GPa vs 95 GPa). On the shop floor, C84400 machines more easily (excellent vs good), CC332G welds better (good vs poor), and CC332G sits in a lower cost tier (high, $$$$) than C84400 (specialty, $$$$$).

C84400Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

CC332GChoose it when strength drives the design, or when weight is the constraint.

C84400 vs CC332G: properties

C84400CC332G

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

95 GPa13.8 Msi
110 GPa16 Msi

Shear Modulus

36 GPa5.2 Msi
42 GPa6.1 Msi

Bulk Modulus

115 GPa16.7 Msi
102 GPa14.8 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

234 MPa33.9 ksi
570 MPa82.7 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
250 MPa36.3 ksi

Elongation at Break

26%
20%

Compressive Strength

260 MPa37.7 ksi
600 MPa87 ksi

Shear Strength

165 MPa23.9 ksi
330 MPa47.9 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
175 MPa25.4 ksi

Hardness, Brinell

55 HB
120 HB

Hardness, Rockwell B

25 HRB
78 HRB

Reduction in Area

—
20%

Fracture Toughness (K_IC)

—
40 MPa·√m36.4 ksi·√in

Hardness, Vickers

—
125 HV

Same in both: Charpy V-Notch Impact (RT) 20 J14.8 ft·lbf

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

843°C1,549 °F
1,040°C1,904 °F

Liquidus Temperature

954°C1,749 °F
1,060°C1,940 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
59 W/m·K34.1 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

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

Max Service Temperature (continuous)

200°C392 °F
300°C572 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16.4 % IACS
13 % IACS

Electrical Resistivity

1.05×10⁻⁷ Ω·m4.13 µΩ·in
1.33×10⁻⁷ Ω·m5.24 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
78 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V

Manufacturability

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

Machinability

90 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

90%
55%

Weldability

20 / 100
65 / 100

Formability (cold)

10 / 100
15 / 100

Castability

90 / 100
75 / 100

Brazeability / Solderability

80 / 100
30 / 100

Polishability

60 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

42 MJ/kg18,057 BTU/lb
60 MJ/kg25,795 BTU/lb

Embodied Carbon (primary production)

3.2 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

85%
50%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

27 kN·m/kg
76 kN·m/kg

Specific Stiffness (E / density)

10.8 MN·m/kg
14.7 MN·m/kg

Modulus of Resilience

64 kJ/m³
284 kJ/m³

Thermal Diffusivity

21.7 mm²/s
18.7 mm²/s

Thermal Shock Resistance Index

10
19

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 scaleC84400CC332G

Manufacturing and finishing

CapabilityC84400CC332G
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.

C84400 vs CC332G — frequently asked

Is CC332G stronger than C84400?

Yes. CC332G has a typical yield strength of 250 MPa (36.3 ksi) against 110 MPa (16 ksi) for C84400 — about 127% more. Tensile strength is 570 MPa (82.7 ksi) vs 234 MPa (33.9 ksi).

Which is cheaper, C84400 or CC332G?

CC332G is the lower-cost material: it sits in the high tier ($$$$) while C84400 is specialty ($$$$$). 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, C84400 or CC332G?

C84400. Its machinability rates excellent (90/100) against good (55/100) for CC332G; for welding the order is CC332G first (good, 65/100) then C84400 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84400 and CC332G 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.