Copper Alloy CC760S-GM vs CC760S-GS
Copper Alloy · CC760S temper comparison
CC760S-GM and CC760S-GS are two conditions of the same copper alloy grade, CC760S: GM (gravity die (permanent mould) cast) versus GS (sand cast). The chemistry is identical, so every difference below comes from the condition. CC760S-GM is the stronger of the two: yield strength 100 MPa (14.5 ksi) against 90 MPa (13.1 ksi) for CC760S-GS, about 11% more; tensile strength follows at 250 MPa (36.3 ksi) vs 220 MPa (31.9 ksi). CC760S-GM is the more ductile: elongation 35% versus 30% for CC760S-GS, and CC760S-GM is harder (60 HB vs 55 HB).
CC760S-GMChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
CC760S-GM vs CC760S-GS: 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
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 40 GPa5.8 Msi · Bulk Modulus 112 GPa16.2 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.75 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,000°C1,832 °F · Liquidus Temperature 1,025°C1,877 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18.7 µm/m·K10.4 µin/in·°F · Latent Heat of Fusion 200 J/g86 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.26 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Same in both: Machinability 35 / 100 · Machinability Rating (AISI 1212 = 100 %) 30% · Weldability 45 / 100 · Castability 70 / 100 · Brazeability / Solderability 92 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 58 MJ/kg24,936 BTU/lb · Embodied Carbon (primary production) 4 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 50%
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.
CC760S-GM vs CC760S-GS — frequently asked
Is CC760S-GM stronger than CC760S-GS?
Yes. CC760S-GM has a typical yield strength of 100 MPa (14.5 ksi) against 90 MPa (13.1 ksi) for CC760S-GS — about 11% more. Tensile strength is 250 MPa (36.3 ksi) vs 220 MPa (31.9 ksi).
Which condition does FabDigit quote by default, GM or GS?
GS is the default CC760S condition in the FabDigit quote flow. 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 CC760S-GM over CC760S-GS?
Pick CC760S-GM when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC760S-GM and CC760S-GS 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.