Copper Alloy CC763S-GM vs CC763S-GZ
Copper Alloy · CC763S temper comparison
CC763S-GM and CC763S-GZ are two conditions of the same copper alloy grade, CC763S: GM (gravity die (permanent mould) cast) versus GZ (centrifugally cast). The chemistry is identical, so every difference below comes from the condition. CC763S-GZ is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for CC763S-GM, about 15% more; tensile strength follows at 730 MPa (106 ksi) vs 670 MPa (97.2 ksi). In exchange, CC763S-GM is the more ductile: elongation 14% versus 12% for CC763S-GZ, and CC763S-GZ is harder (170 HB vs 160 HB).
CC763S-GMChoose it when the part is bent, formed or impact-loaded.
CC763S-GZChoose it when strength drives the design.
CC763S-GM vs CC763S-GZ: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 7.9 g/cm³0.29 lb/in³ · Melting Point (Solidus) 880°C1,616 °F · Liquidus Temperature 910°C1,670 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 60 W/m·K34.7 BTU/hr·ft·°F · Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 20.5 µm/m·K11.4 µin/in·°F · Latent Heat of Fusion 175 J/g75.2 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 12 % IACS · Electrical Resistivity 1.45×10⁻⁷ Ω·m5.71 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 30 / 100 · Castability 80 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 48 MJ/kg20,636 BTU/lb · Embodied Carbon (primary production) 3.2 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 70%
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.
CC763S-GM vs CC763S-GZ — frequently asked
Is CC763S-GZ stronger than CC763S-GM?
Yes. CC763S-GZ has a typical yield strength of 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for CC763S-GM — about 15% more. Tensile strength is 730 MPa (106 ksi) vs 670 MPa (97.2 ksi).
Which condition does FabDigit quote by default, GM or GZ?
GS is the default CC763S condition in the FabDigit quote flow (neither GM nor GZ). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
When should I choose CC763S-GM over CC763S-GZ?
Pick CC763S-GM when the part is bent, formed or impact-loaded. Pick CC763S-GZ when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC763S-GM and CC763S-GZ 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.