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Copper Alloy C12200 vs C19000

Copper Alloy · grade comparison

Copper Alloy C12200 and C19000 are both copper alloy grades. C19000 is the stronger of the two: yield strength 448 MPa (65 ksi) against 76 MPa (11 ksi) for C12200, about 5.9 times as much; tensile strength follows at 483 MPa (70.1 ksi) vs 235 MPa (34.1 ksi). In exchange, C12200 is the more ductile: elongation 45% versus 8% for C19000. C19000 is stiffer (125 GPa vs 117 GPa) and C12200 conducts heat better (339 W/m·K vs 180 W/m·K). On the shop floor, C12200 welds better (excellent vs good).

C12200Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

C19000Choose it when strength drives the design.

C12200 vs C19000: properties

C12200C19000

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)

235 MPa34.1 ksi
483 MPa70.1 ksi

Yield Strength (0.2% offset)

76 MPa11 ksi
448 MPa65 ksi

Elongation at Break

45%
8%

Reduction in Area

75%
—

Shear Strength

150 MPa21.8 ksi
290 MPa42.1 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
190 MPa27.6 ksi

Hardness, Brinell

45 HB
—

Hardness, Rockwell B

—
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)

1,083°C1,981 °F
1,075°C1,967 °F

Liquidus Temperature

1,083°C1,981 °F
1,099°C2,010 °F

Thermal

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

Thermal Conductivity

339 W/m·K196 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

Thermal Expansion (CTE, 20–100 °C)

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

Same in both: 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

85 % IACS
43 % IACS

Electrical Resistivity

2.03×10⁻⁸ Ω·m0.799 µΩ·in
4.01×10⁻⁸ Ω·m1.58 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

70 / 100
58 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V

Manufacturability

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

Machinability

20 / 100
25 / 100

Weldability

85 / 100
55 / 100

Formability (cold)

98 / 100
55 / 100

Brazeability / Solderability

100 / 100
85 / 100

Polishability

80 / 100
75 / 100

Castability

—
40 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
57 MJ/kg24,506 BTU/lb

Same in both: Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

26 kN·m/kg
54 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
14.1 MN·m/kg

Modulus of Resilience

25 kJ/m³
803 kJ/m³

Thermal Diffusivity

98.5 mm²/s
53.7 mm²/s

Same in both: Thermal Shock Resistance Index 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 scaleC12200C19000

Manufacturing and finishing

CapabilityC12200C19000
CNC machiningYes—
Sheet metalYes—
Default conditionO—
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.

C12200 vs C19000 — frequently asked

Is C19000 stronger than C12200?

Yes. C19000 has a typical yield strength of 448 MPa (65 ksi) against 76 MPa (11 ksi) for C12200 — about 5.9 times as much. Tensile strength is 483 MPa (70.1 ksi) vs 235 MPa (34.1 ksi).

Which is cheaper, C12200 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, C12200 or C19000?

C19000, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for C12200; for welding the order is C12200 first (excellent, 85/100) then C19000 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C12200 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.