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Copper Alloy C96900 vs CC382H

Copper Alloy · grade comparison

Copper Alloy C96900 and CC382H are both copper alloy grades. C96900 is the stronger of the two: yield strength 655 MPa (95 ksi) against 275 MPa (39.9 ksi) for CC382H, about 138% more; tensile strength follows at 795 MPa (115 ksi) vs 470 MPa (68.2 ksi). In exchange, CC382H is the more ductile: elongation 20% versus 8% for C96900, and C96900 is harder (275 HB vs 130 HB). CC382H is stiffer (150 GPa vs 138 GPa) and CC382H runs hotter in service (300°C vs 260°C continuous). On the shop floor, C96900 machines more easily (good vs poor) and CC382H welds better (good vs poor).

C96900Choose it when strength drives the design, or when the part is machined in volume.

CC382HChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C96900 vs CC382H: properties

C96900CC382H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

138 GPa20 Msi
150 GPa21.8 Msi

Shear Modulus

52 GPa7.5 Msi
57 GPa8.3 Msi

Bulk Modulus

128 GPa18.6 Msi
132 GPa19.1 Msi

Poisson's Ratio

0.32
0.31

Tensile Strength (Ultimate)

795 MPa115 ksi
470 MPa68.2 ksi

Yield Strength (0.2% offset)

655 MPa95 ksi
275 MPa39.9 ksi

Elongation at Break

8%
20%

Reduction in Area

12%
20%

Compressive Strength

700 MPa102 ksi
—

Shear Strength

480 MPa69.6 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
175 MPa25.4 ksi

Charpy V-Notch Impact (RT)

14 J10.3 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

275 HB
130 HB

Hardness, Rockwell C

28 HRC
—

Hardness, Vickers

290 HV
137 HV

Hardness, Rockwell B

—
72 HRB

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,010°C1,850 °F
1,180°C2,156 °F

Liquidus Temperature

1,120°C2,048 °F
1,240°C2,264 °F

Thermal

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

Thermal Conductivity

40 W/m·K23.1 BTU/hr·ft·°F
26 W/m·K15 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

16.4 µm/m·K9.1 µin/in·°F
15.5 µm/m·K8.6 µin/in·°F

Max Service Temperature (continuous)

260°C500 °F
300°C572 °F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

Latent Heat of Fusion

—
230 J/g98.9 BTU/lb

Same in both: Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

11 % IACS
4.2 % IACS

Electrical Resistivity

1.57×10⁻⁷ Ω·m6.18 µΩ·in
4.1×10⁻⁷ Ω·m16.1 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.26 V
-0.25 V

Corrosion Resistance

78 / 100
82 / 100

Manufacturability

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

Machinability

58 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
20%

Weldability

25 / 100
65 / 100

Formability (cold)

15 / 100
10 / 100

Castability

62 / 100
55 / 100

Brazeability / Solderability

45 / 100
60 / 100

Polishability

80 / 100
75 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

95 MJ/kg40,843 BTU/lb
85 MJ/kg36,543 BTU/lb

Embodied Water

400 L/kg47.9 gal/lb
220 L/kg26.4 gal/lb

Typical Recycled Content

30%
40%

Same in both: Embodied Carbon (primary production) 6.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

89 kN·m/kg
53 kN·m/kg

Specific Stiffness (E / density)

15.4 MN·m/kg
17 MN·m/kg

Modulus of Resilience

1,554 kJ/m³
252 kJ/m³

Thermal Diffusivity

11.8 mm²/s
7.8 mm²/s

Thermal Shock Resistance Index

14
5

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 scaleCC382HC96900

Manufacturing and finishing

CapabilityC96900CC382H
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.

C96900 vs CC382H — frequently asked

Is C96900 stronger than CC382H?

Yes. C96900 has a typical yield strength of 655 MPa (95 ksi) against 275 MPa (39.9 ksi) for CC382H — about 138% more. Tensile strength is 795 MPa (115 ksi) vs 470 MPa (68.2 ksi).

Which is cheaper, C96900 or CC382H?

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, C96900 or CC382H?

C96900. Its machinability rates good (58/100) against poor (22/100) for CC382H; for welding the order is CC382H first (good, 65/100) then C96900 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C96900 and CC382H 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.