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Copper Alloy C96300 vs CC380H

Copper Alloy · grade comparison

Copper Alloy C96300 and CC380H are both copper alloy grades. C96300 is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 140 MPa (20.3 ksi) for CC380H, about 96% more; tensile strength follows at 470 MPa (68.2 ksi) vs 300 MPa (43.5 ksi). In exchange, CC380H is the more ductile: elongation 25% versus 18% for C96300, and C96300 is harder (140 HB vs 80 HB). C96300 is stiffer (145 GPa vs 124 GPa) and CC380H conducts heat better (42 W/m·K vs 33 W/m·K).

C96300Choose it when strength drives the design.

CC380HChoose it when the part is bent, formed or impact-loaded.

C96300 vs CC380H: properties

C96300CC380H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

145 GPa21 Msi
124 GPa18 Msi

Shear Modulus

55 GPa8 Msi
46 GPa6.7 Msi

Bulk Modulus

140 GPa20.3 Msi
128 GPa18.6 Msi

Tensile Strength (Ultimate)

470 MPa68.2 ksi
300 MPa43.5 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
140 MPa20.3 ksi

Elongation at Break

18%
25%

Reduction in Area

20%
25%

Compressive Strength

285 MPa41.3 ksi
—

Shear Strength

300 MPa43.5 ksi
195 MPa28.3 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
105 MPa15.2 ksi

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
50 J36.9 ft·lbf

Hardness, Brinell

140 HB
80 HB

Hardness, Rockwell B

76 HRB
40 HRB

Hardness, Vickers

147 HV
84 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,165°C2,129 °F
1,100°C2,012 °F

Liquidus Temperature

1,205°C2,201 °F
1,145°C2,093 °F

Same in both: Density 8.9 g/cm³0.32 lb/in³

Thermal

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

Thermal Conductivity

33 W/m·K19.1 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

15.5 µm/m·K8.6 µin/in·°F
16.5 µm/m·K9.2 µin/in·°F

Latent Heat of Fusion

210 J/g90.3 BTU/lb
200 J/g86 BTU/lb

Same in both: Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.5 % IACS
10 % IACS

Electrical Resistivity

2.65×10⁻⁷ Ω·m10.4 µΩ·in
1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.28 V

Corrosion Resistance

78 / 100
82 / 100

Manufacturability

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

Weldability

75 / 100
80 / 100

Formability (cold)

18 / 100
15 / 100

Same in both: Machinability 28 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Castability 60 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

78 MJ/kg33,534 BTU/lb
70 MJ/kg30,095 BTU/lb

Embodied Carbon (primary production)

6.5 kg CO₂/kg
5.2 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

53 kN·m/kg
34 kN·m/kg

Specific Stiffness (E / density)

16.3 MN·m/kg
13.9 MN·m/kg

Modulus of Resilience

261 kJ/m³
79 kJ/m³

Thermal Diffusivity

9.8 mm²/s
12.5 mm²/s

Thermal Shock Resistance Index

7
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 scaleCC380HC96300

Manufacturing and finishing

CapabilityC96300CC380H
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.

C96300 vs CC380H — frequently asked

Is C96300 stronger than CC380H?

Yes. C96300 has a typical yield strength of 275 MPa (39.9 ksi) against 140 MPa (20.3 ksi) for CC380H — about 96% more. Tensile strength is 470 MPa (68.2 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, C96300 or CC380H?

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 welds better, C96300 or CC380H?

CC380H. Its weldability rates very good (80/100) against very good (75/100) for C96300.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C96300 and CC380H 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.