Copper Alloy C97400 vs CC380H
Copper Alloy · grade comparison
Copper Alloy C97400 and CC380H are both copper alloy grades. CC380H is the stronger of the two: yield strength 140 MPa (20.3 ksi) against 117 MPa (17 ksi) for C97400, about 20% more; tensile strength follows at 300 MPa (43.5 ksi) vs 241 MPa (35 ksi). CC380H is the more ductile: elongation 25% versus 20% for C97400, and CC380H is harder (80 HB vs 70 HB). CC380H runs hotter in service (300°C vs 230°C continuous) and CC380H conducts heat better (42 W/m·K vs 30 W/m·K). On the shop floor, C97400 machines more easily (very good vs poor) and CC380H welds better (very good vs poor).
C97400Choose it when the part is machined in volume.
CC380HChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
C97400 vs CC380H: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Reduction in Area
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 124 GPa18 Msi · Shear Modulus 46 GPa6.7 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 70 MJ/kg30,095 BTU/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 13.9 MN·m/kg
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.
Manufacturing and finishing
| Capability | C97400 | CC380H |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C97400 vs CC380H — frequently asked
Is CC380H stronger than C97400?
Yes. CC380H has a typical yield strength of 140 MPa (20.3 ksi) against 117 MPa (17 ksi) for C97400 — about 20% more. Tensile strength is 300 MPa (43.5 ksi) vs 241 MPa (35 ksi).
Which is cheaper, C97400 or CC380H?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, C97400 or CC380H?
C97400. Its machinability rates very good (72/100) against poor (28/100) for CC380H; for welding the order is CC380H first (very good, 80/100) then C97400 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C97400 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.