Copper Alloy CC751S vs CC753S
Copper Alloy · grade comparison
Copper Alloy CC751S and CC753S are both copper alloy grades. CC753S is the stronger of the two: yield strength 150 MPa (21.8 ksi) against 90 MPa (13.1 ksi) for CC751S, about 67% more; tensile strength follows at 320 MPa (46.4 ksi) vs 220 MPa (31.9 ksi). CC753S is the more ductile: elongation 18% versus 15% for CC751S, and CC753S is harder (80 HB vs 55 HB). CC753S is stiffer (95 GPa vs 90 GPa).
CC753SChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
CC751S 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
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Charpy V-Notch Impact (RT) 20 J14.8 ft·lbf
Physical
Density and transition temperatures.
Density
Liquidus Temperature
Same in both: Melting Point (Solidus) 880°C1,616 °F
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
Same in both: Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 20 % IACS · Electrical Resistivity 8.6×10⁻⁸ Ω·m3.39 µΩ·in
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
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 | CC751S | CC753S |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
CC751S vs CC753S — frequently asked
Is CC753S stronger than CC751S?
Yes. CC753S has a typical yield strength of 150 MPa (21.8 ksi) against 90 MPa (13.1 ksi) for CC751S — about 67% more. Tensile strength is 320 MPa (46.4 ksi) vs 220 MPa (31.9 ksi).
Which is cheaper, CC751S or CC753S?
Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, CC751S or CC753S?
CC753S. Its weldability rates poor (25/100) against poor (20/100) for CC751S.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC751S 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.