Copper Alloy CC490K vs CC753S
Copper Alloy · grade comparison
Copper Alloy CC490K and CC753S are both copper alloy grades. CC753S is the stronger of the two: yield strength 150 MPa (21.8 ksi) against 100 MPa (14.5 ksi) for CC490K, about 50% more; tensile strength follows at 320 MPa (46.4 ksi) vs 215 MPa (31.2 ksi). In exchange, CC490K is the more ductile: elongation 20% versus 18% for CC753S, and CC753S is harder (80 HB vs 65 HB). CC753S is lighter (8.4 g/cm³ vs 8.7 g/cm³ for CC490K) and CC753S is stiffer (95 GPa vs 90 GPa). On the shop floor, CC753S sits in a lower cost tier (premium, $$$) than CC490K (high, $$$$).
CC490KChoose it when the part is bent, formed or impact-loaded.
CC753SChoose it when strength drives the design, or when weight is the constraint.
CC490K vs CC753S: 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.
Elastic (Young's) Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Compressive Strength
Same in both: Shear Modulus 36 GPa5.2 Msi · Poisson's Ratio 0.34 · Reduction in Area 20%
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °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 Rating (AISI 1212 = 100 %)
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability 80 / 100 · Weldability 25 / 100
Sustainability
Primary-production footprint per kilogram.
Typical Recycled Content
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 260 L/kg31.2 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | CC490K | CC753S |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
CC490K vs CC753S — frequently asked
Is CC753S stronger than CC490K?
Yes. CC753S has a typical yield strength of 150 MPa (21.8 ksi) against 100 MPa (14.5 ksi) for CC490K — about 50% more. Tensile strength is 320 MPa (46.4 ksi) vs 215 MPa (31.2 ksi).
Which is cheaper, CC490K or CC753S?
CC753S is the lower-cost material: it sits in the premium tier ($$$) while CC490K is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose CC490K over CC753S?
Pick CC490K when the part is bent, formed or impact-loaded. Pick CC753S when strength drives the design, or when weight is the constraint.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC490K and CC753S 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.