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Copper Alloy C14500 vs C19000

Copper Alloy · grade comparison

Copper Alloy C14500 and C19000 are both copper alloy grades. C19000 is the stronger of the two: yield strength 448 MPa (65 ksi) against 275 MPa (39.9 ksi) for C14500, about 63% more; tensile strength follows at 483 MPa (70.1 ksi) vs 310 MPa (45 ksi). In exchange, C14500 is the more ductile: elongation 18% versus 8% for C19000, and C19000 is harder (78 HRB vs 40 HRB). C19000 is stiffer (125 GPa vs 117 GPa) and C14500 conducts heat better (350 W/m·K vs 180 W/m·K). On the shop floor, C14500 machines more easily (excellent vs poor) and C19000 welds better (good vs poor).

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

C19000Choose it when strength drives the design, or when it will be welded.

C14500 vs C19000: properties

C14500C19000

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

117 GPa17 Msi
125 GPa18.1 Msi

Shear Modulus

44 GPa6.4 Msi
46 GPa6.7 Msi

Bulk Modulus

140 GPa20.3 Msi
138 GPa20 Msi

Tensile Strength (Ultimate)

310 MPa45 ksi
483 MPa70.1 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
448 MPa65 ksi

Elongation at Break

18%
8%

Shear Strength

195 MPa28.3 ksi
290 MPa42.1 ksi

Fatigue Strength (Endurance Limit)

95 MPa13.8 ksi
190 MPa27.6 ksi

Hardness, Brinell

85 HB
—

Hardness, Rockwell B

40 HRB
78 HRB

Hardness, Vickers

—
150 HV

Same in both: Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,051°C1,924 °F
1,075°C1,967 °F

Liquidus Temperature

1,065°C1,949 °F
1,099°C2,010 °F

Thermal

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

Thermal Conductivity

350 W/m·K202 BTU/hr·ft·°F
180 W/m·K104 BTU/hr·ft·°F

Specific Heat Capacity

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

Same in both: Thermal Expansion (CTE, 20–100 °C) 17.6 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

92 % IACS
43 % IACS

Electrical Resistivity

1.87×10⁻⁸ Ω·m0.736 µΩ·in
4.01×10⁻⁸ Ω·m1.58 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.3 V

Corrosion Resistance

65 / 100
58 / 100

Manufacturability

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

Machinability

85 / 100
25 / 100

Weldability

25 / 100
55 / 100

Formability (cold)

40 / 100
55 / 100

Brazeability / Solderability

90 / 100
85 / 100

Polishability

70 / 100
75 / 100

Machinability Rating (AISI 1212 = 100 %)

—
20%

Castability

—
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

3.6 kg CO₂/kg
3.8 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
250 L/kg30 gal/lb

Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb · Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

35 kN·m/kg
54 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
14.1 MN·m/kg

Modulus of Resilience

323 kJ/m³
803 kJ/m³

Thermal Diffusivity

101.7 mm²/s
53.7 mm²/s

Thermal Shock Resistance Index

53
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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC14500C19000

Manufacturing and finishing

CapabilityC14500C19000
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 C19000 — frequently asked

Is C19000 stronger than C14500?

Yes. C19000 has a typical yield strength of 448 MPa (65 ksi) against 275 MPa (39.9 ksi) for C14500 — about 63% more. Tensile strength is 483 MPa (70.1 ksi) vs 310 MPa (45 ksi).

Which is cheaper, C14500 or C19000?

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 C19000?

C14500. Its machinability rates excellent (85/100) against poor (25/100) for C19000; for welding the order is C19000 first (good, 55/100) then C14500 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C14500 and C19000 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.