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Copper Alloy C14500 vs C19500

Copper Alloy · grade comparison

Copper Alloy C14500 and C19500 are both copper alloy grades. C19500 is the stronger of the two: yield strength 517 MPa (75 ksi) against 275 MPa (39.9 ksi) for C14500, about 88% more; tensile strength follows at 552 MPa (80.1 ksi) vs 310 MPa (45 ksi). In exchange, C14500 is the more ductile: elongation 18% versus 5% for C19500, and C19500 is harder (80 HRB vs 40 HRB). C19500 is stiffer (131 GPa vs 117 GPa) and C14500 conducts heat better (350 W/m·K vs 200 W/m·K). On the shop floor, C14500 machines more easily (excellent vs poor) and C19500 welds better (fair vs poor).

C14500Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C19500Choose it when strength drives the design, or when it will be welded.

C14500 vs C19500: properties

C14500C19500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

117 GPa17 Msi
131 GPa19 Msi

Shear Modulus

44 GPa6.4 Msi
48 GPa7 Msi

Bulk Modulus

140 GPa20.3 Msi
135 GPa19.6 Msi

Poisson's Ratio

0.34
0.33

Tensile Strength (Ultimate)

310 MPa45 ksi
552 MPa80.1 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
517 MPa75 ksi

Elongation at Break

18%
5%

Shear Strength

195 MPa28.3 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

95 MPa13.8 ksi
230 MPa33.4 ksi

Hardness, Brinell

85 HB
—

Hardness, Rockwell B

40 HRB
80 HRB

Hardness, Vickers

—
165 HV

Physical

Density and transition temperatures.

Density

8.94 g/cm³0.32 lb/in³
8.78 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,051°C1,924 °F
1,030°C1,886 °F

Liquidus Temperature

1,065°C1,949 °F
1,075°C1,967 °F

Thermal

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

Thermal Conductivity

350 W/m·K202 BTU/hr·ft·°F
200 W/m·K116 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

17.6 µm/m·K9.8 µin/in·°F
17 µm/m·K9.4 µin/in·°F

Min Service Temperature

-200°C-328 °F
-196°C-321 °F

Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

92 % IACS
50 % IACS

Electrical Resistivity

1.87×10⁻⁸ Ω·m0.736 µΩ·in
3.45×10⁻⁸ Ω·m1.36 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.27 V

Corrosion Resistance

65 / 100
62 / 100

Manufacturability

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

Machinability

85 / 100
30 / 100

Weldability

25 / 100
40 / 100

Formability (cold)

40 / 100
55 / 100

Polishability

70 / 100
75 / 100

Machinability Rating (AISI 1212 = 100 %)

—
45%

Same in both: Brazeability / Solderability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

57 MJ/kg24,506 BTU/lb
53 MJ/kg22,786 BTU/lb

Embodied Water

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

Typical Recycled Content

35%
40%

Same in both: Embodied Carbon (primary production) 3.6 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

35 kN·m/kg
63 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
14.9 MN·m/kg

Modulus of Resilience

323 kJ/m³
1,020 kJ/m³

Thermal Diffusivity

101.7 mm²/s
59.2 mm²/s

Thermal Shock Resistance Index

53
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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC14500C19500

Manufacturing and finishing

CapabilityC14500C19500
CNC machiningYes—
Sheet metalYes—
Default conditionH02—
Relative cost$$$$ High$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
Chrome PlatingYes—
ElectropolishingYes—
Nickel PlatingYes—
PaintingYes—
Tin PlatingYes—

They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C14500 vs C19500 — frequently asked

Is C19500 stronger than C14500?

Yes. C19500 has a typical yield strength of 517 MPa (75 ksi) against 275 MPa (39.9 ksi) for C14500 — about 88% more. Tensile strength is 552 MPa (80.1 ksi) vs 310 MPa (45 ksi).

Which is cheaper, C14500 or C19500?

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, C14500 or C19500?

C14500. Its machinability rates excellent (85/100) against poor (30/100) for C19500; for welding the order is C19500 first (fair, 40/100) then C14500 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C14500 and C19500 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.