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Copper Alloy CC495K-GC vs CC495K-GS

Copper Alloy · CC495K temper comparison

CC495K-GC and CC495K-GS are two conditions of the same copper alloy grade, CC495K: GC (continuously cast bar / tube) versus GS (sand cast). The chemistry is identical, so every difference below comes from the condition. CC495K-GC is the stronger of the two: yield strength 140 MPa (20.3 ksi) against 100 MPa (14.5 ksi) for CC495K-GS, about 40% more; tensile strength follows at 270 MPa (39.2 ksi) vs 220 MPa (31.9 ksi). In exchange, CC495K-GS is the more ductile: elongation 12% versus 10% for CC495K-GC, and CC495K-GC is harder (75 HB vs 65 HB). CC495K-GC is stiffer (76 GPa vs 72 GPa).

CC495K-GCChoose it when strength drives the design.

CC495K-GSChoose it when the part is bent, formed or impact-loaded.

CC495K-GC vs CC495K-GS: properties

CC495K-GCCC495K-GS

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

76 GPa11 Msi
72 GPa10.4 Msi

Tensile Strength (Ultimate)

270 MPa39.2 ksi
220 MPa31.9 ksi

Yield Strength (0.2% offset)

140 MPa20.3 ksi
100 MPa14.5 ksi

Elongation at Break

10%
12%

Compressive Strength

250 MPa36.3 ksi
210 MPa30.5 ksi

Shear Strength

190 MPa27.6 ksi
160 MPa23.2 ksi

Fatigue Strength (Endurance Limit)

75 MPa10.9 ksi
65 MPa9.4 ksi

Charpy V-Notch Impact (RT)

8 J5.9 ft·lbf
9 J6.6 ft·lbf

Hardness, Brinell

75 HB
65 HB

Hardness, Rockwell B

32 HRB
22 HRB

Hardness, Vickers

80 HV
68 HV

Same in both: Shear Modulus 28 GPa4.1 Msi · Bulk Modulus 78 GPa11.3 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.9 g/cm³0.32 lb/in³ · Melting Point (Solidus) 762°C1,404 °F · Liquidus Temperature 930°C1,706 °F

Thermal

How each material carries heat and how hot it can run.

Same in both: Thermal Conductivity 47 W/m·K27.2 BTU/hr·ft·°F · Specific Heat Capacity 251 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18.5 µm/m·K10.3 µin/in·°F · Latent Heat of Fusion 170 J/g73.1 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.72×10⁻⁷ Ω·m6.77 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

56 / 100
53 / 100

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.

Same in both: Machinability 85 / 100 · Machinability Rating (AISI 1212 = 100 %) 80% · Weldability 10 / 100 · Formability (cold) 10 / 100 · Castability 88 / 100 · Brazeability / Solderability 60 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.6 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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleCC495K

CC495K-GC vs CC495K-GS — frequently asked

Is CC495K-GC stronger than CC495K-GS?

Yes. CC495K-GC has a typical yield strength of 140 MPa (20.3 ksi) against 100 MPa (14.5 ksi) for CC495K-GS — about 40% more. Tensile strength is 270 MPa (39.2 ksi) vs 220 MPa (31.9 ksi).

Which condition does FabDigit quote by default, GC or GS?

GC is the default CC495K 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 CC495K-GC over CC495K-GS?

Pick CC495K-GC when strength drives the design. Pick CC495K-GS when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in CC495K-GC and CC495K-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.