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Copper Alloy C97400 vs CC382H

Copper Alloy · grade comparison

Copper Alloy C97400 and CC382H are both copper alloy grades. CC382H is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 117 MPa (17 ksi) for C97400, about 135% more; tensile strength follows at 470 MPa (68.2 ksi) vs 241 MPa (35 ksi). CC382H is harder — 130 HB against 70 HB for C97400 — which matters for wear surfaces and threads. CC382H is stiffer (150 GPa vs 124 GPa) and CC382H runs hotter in service (300°C vs 230°C continuous). On the shop floor, C97400 machines more easily (very good vs poor), CC382H welds better (good vs poor), and C97400 forms better (poor vs not recommended).

C97400Choose it when the part is machined in volume.

CC382HChoose it when strength drives the design, or when surface hardness matters.

C97400 vs CC382H: properties

C97400CC382H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

124 GPa18 Msi
150 GPa21.8 Msi

Shear Modulus

46 GPa6.7 Msi
57 GPa8.3 Msi

Bulk Modulus

110 GPa16 Msi
132 GPa19.1 Msi

Poisson's Ratio

0.33
0.31

Tensile Strength (Ultimate)

241 MPa35 ksi
470 MPa68.2 ksi

Yield Strength (0.2% offset)

117 MPa17 ksi
275 MPa39.9 ksi

Compressive Strength

300 MPa43.5 ksi
—

Shear Strength

180 MPa26.1 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
175 MPa25.4 ksi

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

70 HB
130 HB

Reduction in Area

—
20%

Hardness, Rockwell B

—
72 HRB

Hardness, Vickers

—
137 HV

Same in both: Elongation at Break 20%

Physical

Density and transition temperatures.

Density

8.9 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

1,074°C1,965 °F
1,240°C2,264 °F

Thermal

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

Thermal Conductivity

30 W/m·K17.3 BTU/hr·ft·°F
26 W/m·K15 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

190 J/g81.7 BTU/lb
230 J/g98.9 BTU/lb

Max Service Temperature (continuous)

230°C446 °F
300°C572 °F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

6 % IACS
4.2 % IACS

Electrical Resistivity

2.9×10⁻⁷ Ω·m11.4 µΩ·in
4.1×10⁻⁷ Ω·m16.1 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

68 / 100
82 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V

Manufacturability

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

Machinability

72 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
20%

Weldability

25 / 100
65 / 100

Formability (cold)

20 / 100
10 / 100

Castability

65 / 100
55 / 100

Brazeability / Solderability

70 / 100
60 / 100

Polishability

80 / 100
75 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

70 MJ/kg30,095 BTU/lb
85 MJ/kg36,543 BTU/lb

Embodied Carbon (primary production)

5 kg CO₂/kg
6.5 kg CO₂/kg

Embodied Water

320 L/kg38.3 gal/lb
220 L/kg26.4 gal/lb

Typical Recycled Content

60%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

27 kN·m/kg
53 kN·m/kg

Specific Stiffness (E / density)

13.9 MN·m/kg
17 MN·m/kg

Modulus of Resilience

55 kJ/m³
252 kJ/m³

Thermal Diffusivity

8.9 mm²/s
7.8 mm²/s

Thermal Shock Resistance Index

4
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 scaleCC382HC97400

Manufacturing and finishing

CapabilityC97400CC382H
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.

C97400 vs CC382H — frequently asked

Is CC382H stronger than C97400?

Yes. CC382H has a typical yield strength of 275 MPa (39.9 ksi) against 117 MPa (17 ksi) for C97400 — about 135% more. Tensile strength is 470 MPa (68.2 ksi) vs 241 MPa (35 ksi).

Which is cheaper, C97400 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, C97400 or CC382H?

C97400. Its machinability rates very good (72/100) against poor (22/100) for CC382H; for welding the order is CC382H first (good, 65/100) then C97400 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C97400 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.