FabDigitFabDigit

Copper Alloy C96400 vs CC383H

Copper Alloy · grade comparison

Copper Alloy C96400 and CC383H are both copper alloy grades. CC383H is the stronger of the two: yield strength 290 MPa (42.1 ksi) against 265 MPa (38.4 ksi) for C96400, about 9% more. In exchange, C96400 is the more ductile: elongation 25% versus 22% for CC383H.

C96400Choose it when the part is bent, formed or impact-loaded.

CC383HChoose it when strength drives the design.

C96400 vs CC383H: properties

C96400CC383H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

152 GPa22 Msi
150 GPa21.8 Msi

Bulk Modulus

149 GPa21.6 Msi
132 GPa19.1 Msi

Poisson's Ratio

0.33
0.31

Yield Strength (0.2% offset)

265 MPa38.4 ksi
290 MPa42.1 ksi

Elongation at Break

25%
22%

Same in both: Shear Modulus 57 GPa8.3 Msi · Tensile Strength (Ultimate) 480 MPa69.6 ksi · Reduction in Area 25% · Shear Strength 300 MPa43.5 ksi · Fatigue Strength (Endurance Limit) 150 MPa21.8 ksi · Charpy V-Notch Impact (RT) 45 J33.2 ft·lbf · Hardness, Brinell 140 HB · Hardness, Rockwell B 77 HRB · Hardness, Vickers 145 HV

Physical

Density and transition temperatures.

Density

8.94 g/cm³0.32 lb/in³
8.9 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,171°C2,140 °F
1,170°C2,138 °F

Liquidus Temperature

1,238°C2,260 °F
1,240°C2,264 °F

Thermal

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

Thermal Conductivity

28 W/m·K16.2 BTU/hr·ft·°F
29 W/m·K16.8 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

16 µm/m·K8.9 µin/in·°F
15.8 µm/m·K8.8 µin/in·°F

Latent Heat of Fusion

210 J/g90.3 BTU/lb
—

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

4.5 % IACS
4.6 % IACS

Electrical Resistivity

3.8×10⁻⁷ Ω·m15 µΩ·in
3.75×10⁻⁷ Ω·m14.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.27 V

Corrosion Resistance

85 / 100
78 / 100

Manufacturability

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

Machinability

25 / 100
32 / 100

Formability (cold)

20 / 100
25 / 100

Castability

65 / 100
62 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 80 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

78 MJ/kg33,534 BTU/lb
90 MJ/kg38,693 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
5.6 kg CO₂/kg

Embodied Water

220 L/kg26.4 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

17 MN·m/kg
16.9 MN·m/kg

Modulus of Resilience

231 kJ/m³
280 kJ/m³

Thermal Diffusivity

8.3 mm²/s
8.6 mm²/s

Same in both: Specific Strength (UTS / density) 54 kN·m/kg · Thermal Shock Resistance Index 6

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 scaleCC383HC96400

Manufacturing and finishing

CapabilityC96400CC383H
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C96400 vs CC383H — frequently asked

Is CC383H stronger than C96400?

Yes. CC383H has a typical yield strength of 290 MPa (42.1 ksi) against 265 MPa (38.4 ksi) for C96400 — about 9% more. Tensile strength is 480 MPa (69.6 ksi) vs 480 MPa (69.6 ksi).

Which is cheaper, C96400 or CC383H?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, C96400 or CC383H?

CC383H, by a small margin. Both rate poor for machinability — 32/100 against 25/100 for C96400.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C96400 and CC383H 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.