Copper Alloy CC334G-GC vs CC334G-GM
Copper Alloy · CC334G temper comparison
CC334G-GC and CC334G-GM are two conditions of the same copper alloy grade, CC334G: GC (continuously cast bar/tube) versus GM (chill / permanent-mould cast). The chemistry is identical, so every difference below comes from the condition. CC334G-GM is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 470 MPa (68.2 ksi) for CC334G-GC, about 6% more. CC334G-GM is harder — 27 HRC against 25 HRC for CC334G-GC — which matters for wear surfaces and threads.
CC334G-GMChoose it when strength drives the design, or when surface hardness matters.
CC334G-GC vs CC334G-GM: 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)
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 46 GPa6.7 Msi · Bulk Modulus 113 GPa16.4 Msi · Poisson's Ratio 0.32 · Elongation at Break 5% · Reduction in Area 6% · Charpy V-Notch Impact (RT) 9 J6.6 ft·lbf
Physical
Density and transition temperatures.
Same in both: Density 7.45 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,030°C1,886 °F · Liquidus Temperature 1,060°C1,940 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 38 W/m·K22 BTU/hr·ft·°F · Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16 µm/m·K8.9 µin/in·°F · Latent Heat of Fusion 220 J/g94.6 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 7 % IACS · Electrical Resistivity 2.46×10⁻⁷ Ω·m9.69 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.27 V · Corrosion Resistance 78 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 65 / 100 · Brazeability / Solderability 20 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 45%
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.
CC334G-GC vs CC334G-GM — frequently asked
Is CC334G-GM stronger than CC334G-GC?
Yes. CC334G-GM has a typical yield strength of 500 MPa (72.5 ksi) against 470 MPa (68.2 ksi) for CC334G-GC — about 6% more. Tensile strength is 760 MPa (110 ksi) vs 740 MPa (107 ksi).
Which condition does FabDigit quote by default, GC or GM?
GS is the default CC334G condition in the FabDigit quote flow (neither GC nor GM). 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 CC334G-GC over CC334G-GM?
Pick CC334G-GM when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC334G-GC and CC334G-GM 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.