Copper Alloy CC380H GS-SR vs CC380H-GZ
Copper Alloy · CC380H temper comparison
CC380H GS-SR and CC380H-GZ are two conditions of the same copper alloy grade, CC380H: GS-SR (sand cast, stress relieved) versus GZ (centrifugally cast). The chemistry is identical, so every difference below comes from the condition. CC380H-GZ is the stronger of the two: yield strength 160 MPa (23.2 ksi) against 130 MPa (18.9 ksi) for CC380H GS-SR, about 23% more; tensile strength follows at 330 MPa (47.9 ksi) vs 290 MPa (42.1 ksi). In exchange, CC380H GS-SR is the more ductile: elongation 28% versus 25% for CC380H-GZ, and CC380H-GZ is harder (90 HB vs 75 HB).
CC380H GS-SRChoose it when the part is bent, formed or impact-loaded.
CC380H-GZChoose it when strength drives the design.
CC380H GS-SR vs CC380H-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
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 46 GPa6.7 Msi · Bulk Modulus 128 GPa18.6 Msi · Poisson's Ratio 0.33 · Reduction in Area 30% · Charpy V-Notch Impact (RT) 55 J40.6 ft·lbf
Physical
Density and transition temperatures.
Same in both: Density 8.9 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,100°C2,012 °F · Liquidus Temperature 1,145°C2,093 °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) 16.5 µm/m·K9.2 µin/in·°F · Latent Heat of Fusion 200 J/g86 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V · Corrosion Resistance 85 / 100
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 80 / 100 · Castability 60 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 70 MJ/kg30,095 BTU/lb · Embodied Carbon (primary production) 5.2 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 40%
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.
CC380H GS-SR vs CC380H-GZ — frequently asked
Is CC380H-GZ stronger than CC380H GS-SR?
Yes. CC380H-GZ has a typical yield strength of 160 MPa (23.2 ksi) against 130 MPa (18.9 ksi) for CC380H GS-SR — about 23% more. Tensile strength is 330 MPa (47.9 ksi) vs 290 MPa (42.1 ksi).
Which condition does FabDigit quote by default, GS-SR or GZ?
GS is the default CC380H condition in the FabDigit quote flow (neither GS-SR 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 CC380H GS-SR over CC380H-GZ?
Pick CC380H GS-SR when the part is bent, formed or impact-loaded. Pick CC380H-GZ when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC380H GS-SR and CC380H-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.