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Copper Alloy C12200 vs C16500

Copper Alloy · grade comparison

Copper Alloy C12200 and C16500 are both copper alloy grades. C16500 is the stronger of the two: yield strength 430 MPa (62.4 ksi) against 76 MPa (11 ksi) for C12200, about 5.7 times as much; tensile strength follows at 462 MPa (67 ksi) vs 235 MPa (34.1 ksi). In exchange, C12200 is the more ductile: elongation 45% versus 4% for C16500, and C16500 is harder (120 HB vs 45 HB). C12200 conducts heat better (339 W/m·K vs 235 W/m·K). On the shop floor, C12200 welds better (excellent vs fair).

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

C16500Choose it when strength drives the design.

C12200 vs C16500: properties

C12200C16500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

140 GPa20.3 Msi
138 GPa20 Msi

Tensile Strength (Ultimate)

235 MPa34.1 ksi
462 MPa67 ksi

Yield Strength (0.2% offset)

76 MPa11 ksi
430 MPa62.4 ksi

Elongation at Break

45%
4%

Reduction in Area

75%
—

Shear Strength

150 MPa21.8 ksi
270 MPa39.2 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
165 MPa23.9 ksi

Hardness, Brinell

45 HB
120 HB

Hardness, Rockwell B

—
68 HRB

Hardness, Vickers

—
130 HV

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · 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
1,030°C1,886 °F

Liquidus Temperature

1,083°C1,981 °F
1,076°C1,969 °F

Thermal

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

Thermal Conductivity

339 W/m·K196 BTU/hr·ft·°F
235 W/m·K136 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Min Service Temperature

-200°C-328 °F
-250°C-418 °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

85 % IACS
62 % IACS

Electrical Resistivity

2.03×10⁻⁸ Ω·m0.799 µΩ·in
2.78×10⁻⁸ Ω·m1.09 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.3 V
-0.2 V

Corrosion Resistance

70 / 100
68 / 100

Manufacturability

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

Machinability

20 / 100
22 / 100

Weldability

85 / 100
45 / 100

Formability (cold)

98 / 100
45 / 100

Brazeability / Solderability

100 / 100
80 / 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

Embodied Carbon (primary production)

3.8 kg CO₂/kg
3.6 kg CO₂/kg

Typical Recycled Content

35%
25%

Same in both: Embodied Water 250 L/kg30 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

26 kN·m/kg
52 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
13.2 MN·m/kg

Modulus of Resilience

25 kJ/m³
790 kJ/m³

Thermal Diffusivity

98.5 mm²/s
68.7 mm²/s

Thermal Shock Resistance Index

40
53

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 scaleC12200C16500

Manufacturing and finishing

CapabilityC12200C16500
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 C16500 — frequently asked

Is C16500 stronger than C12200?

Yes. C16500 has a typical yield strength of 430 MPa (62.4 ksi) against 76 MPa (11 ksi) for C12200 — about 5.7 times as much. Tensile strength is 462 MPa (67 ksi) vs 235 MPa (34.1 ksi).

Which is cheaper, C12200 or C16500?

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 welds better, C12200 or C16500?

C12200. Its weldability rates excellent (85/100) against fair (45/100) for C16500.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C12200 and C16500 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.