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Copper Alloy CC490K vs HBsC1

Copper Alloy · grade comparison

Copper Alloy CC490K and HBsC1 are both copper alloy grades. HBsC1 is the stronger of the two: yield strength 180 MPa (26.1 ksi) against 100 MPa (14.5 ksi) for CC490K, about 80% more; tensile strength follows at 490 MPa (71.1 ksi) vs 215 MPa (31.2 ksi). HBsC1 is the more ductile: elongation 28% versus 20% for CC490K, and HBsC1 is harder (100 HB vs 65 HB). HBsC1 is lighter (8.3 g/cm³ vs 8.7 g/cm³ for CC490K) and HBsC1 is stiffer (103 GPa vs 90 GPa). On the shop floor, CC490K machines more easily (very good vs poor) and HBsC1 welds better (fair vs poor).

CC490KChoose it when the part is machined in volume.

HBsC1Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

CC490K vs HBsC1: properties

CC490KHBsC1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

90 GPa13.1 Msi
103 GPa14.9 Msi

Shear Modulus

36 GPa5.2 Msi
39 GPa5.7 Msi

Tensile Strength (Ultimate)

215 MPa31.2 ksi
490 MPa71.1 ksi

Yield Strength (0.2% offset)

100 MPa14.5 ksi
180 MPa26.1 ksi

Elongation at Break

20%
28%

Reduction in Area

20%
25%

Shear Strength

160 MPa23.2 ksi
290 MPa42.1 ksi

Fatigue Strength (Endurance Limit)

75 MPa10.9 ksi
160 MPa23.2 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
28 J20.7 ft·lbf

Hardness, Brinell

65 HB
100 HB

Hardness, Rockwell B

25 HRB
58 HRB

Hardness, Vickers

68 HV
105 HV

Compressive Strength

—
340 MPa49.3 ksi

Same in both: Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.7 g/cm³0.31 lb/in³
8.3 g/cm³0.3 lb/in³

Melting Point (Solidus)

900°C1,652 °F
862°C1,584 °F

Liquidus Temperature

1,000°C1,832 °F
899°C1,650 °F

Thermal

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

Thermal Conductivity

78 W/m·K45.1 BTU/hr·ft·°F
86 W/m·K49.7 BTU/hr·ft·°F

Specific Heat Capacity

377 J/kg·K0.09 BTU/lb·°F
376 J/kg·K0.09 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

18.5 µm/m·K10.3 µin/in·°F
21.6 µm/m·K12 µin/in·°F

Latent Heat of Fusion

205 J/g88.1 BTU/lb
195 J/g83.8 BTU/lb

Same in both: Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

15 % IACS
22 % IACS

Electrical Resistivity

1.15×10⁻⁷ Ω·m4.53 µΩ·in
7.8×10⁻⁸ Ω·m3.07 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.29 V

Corrosion Resistance

70 / 100
55 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

80 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

80%
30%

Weldability

25 / 100
35 / 100

Formability (cold)

10 / 100
20 / 100

Castability

85 / 100
82 / 100

Brazeability / Solderability

75 / 100
55 / 100

Polishability

60 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
45 MJ/kg19,347 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
2.8 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
350 L/kg41.9 gal/lb

Typical Recycled Content

85%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

25 kN·m/kg
59 kN·m/kg

Specific Stiffness (E / density)

10.3 MN·m/kg
12.4 MN·m/kg

Modulus of Resilience

56 kJ/m³
157 kJ/m³

Thermal Diffusivity

23.8 mm²/s
27.6 mm²/s

Thermal Shock Resistance Index

10
19

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 scaleCC490KHBsC1

Manufacturing and finishing

CapabilityCC490KHBsC1
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

CC490K vs HBsC1 — frequently asked

Is HBsC1 stronger than CC490K?

Yes. HBsC1 has a typical yield strength of 180 MPa (26.1 ksi) against 100 MPa (14.5 ksi) for CC490K — about 80% more. Tensile strength is 490 MPa (71.1 ksi) vs 215 MPa (31.2 ksi).

Which is cheaper, CC490K or HBsC1?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, CC490K or HBsC1?

CC490K. Its machinability rates very good (80/100) against poor (32/100) for HBsC1; for welding the order is HBsC1 first (fair, 35/100) then CC490K (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CC490K and HBsC1 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.