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Copper Alloy C12200 vs C17000

Copper Alloy · grade comparison

Copper Alloy C12200 and C17000 are both copper alloy grades. C17000 is the stronger of the two: yield strength 1,000 MPa (145 ksi) against 76 MPa (11 ksi) for C12200, about 13 times as much; tensile strength follows at 1,140 MPa (165 ksi) vs 235 MPa (34.1 ksi). In exchange, C12200 is the more ductile: elongation 45% versus 6% for C17000, and C17000 is harder (340 HB vs 45 HB). C17000 is lighter (8.41 g/cm³ vs 8.94 g/cm³ for C12200) and C17000 is stiffer (131 GPa vs 117 GPa). On the shop floor, C17000 machines more easily (fair vs poor) and C12200 welds better (excellent vs fair).

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

C17000Choose it when strength drives the design, or when weight is the constraint.

C12200 vs C17000: properties

C12200C17000

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
50 GPa7.3 Msi

Bulk Modulus

140 GPa20.3 Msi
115 GPa16.7 Msi

Poisson's Ratio

0.34
0.3

Tensile Strength (Ultimate)

235 MPa34.1 ksi
1,140 MPa165 ksi

Yield Strength (0.2% offset)

76 MPa11 ksi
1,000 MPa145 ksi

Elongation at Break

45%
6%

Reduction in Area

75%
20%

Shear Strength

150 MPa21.8 ksi
690 MPa100 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
290 MPa42.1 ksi

Hardness, Brinell

45 HB
340 HB

Compressive Strength

—
1,100 MPa160 ksi

Fracture Toughness (K_IC)

—
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

—
12 J8.9 ft·lbf

Hardness, Rockwell C

—
36 HRC

Hardness, Vickers

—
355 HV

Physical

Density and transition temperatures.

Density

8.94 g/cm³0.32 lb/in³
8.41 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,083°C1,981 °F
866°C1,591 °F

Liquidus Temperature

1,083°C1,981 °F
980°C1,796 °F

Thermal

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

Thermal Conductivity

339 W/m·K196 BTU/hr·ft·°F
107 W/m·K61.8 BTU/hr·ft·°F

Specific Heat Capacity

385 J/kg·K0.09 BTU/lb·°F
420 J/kg·K0.1 BTU/lb·°F

Latent Heat of Fusion

205 J/g88.1 BTU/lb
200 J/g86 BTU/lb

Same in both: Thermal Expansion (CTE, 20–100 °C) 17 µm/m·K9.4 µin/in·°F · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

85 % IACS
23 % IACS

Electrical Resistivity

2.03×10⁻⁸ Ω·m0.799 µΩ·in
7.5×10⁻⁸ Ω·m2.95 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.3 V
-0.2 V

Same in both: Corrosion Resistance 70 / 100

Manufacturability

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

Machinability

20 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

85 / 100
50 / 100

Formability (cold)

98 / 100
20 / 100

Brazeability / Solderability

100 / 100
70 / 100

Polishability

80 / 100
85 / 100

Castability

—
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
95 MJ/kg40,843 BTU/lb

Embodied Carbon (primary production)

3.8 kg CO₂/kg
6.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

35%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

26 kN·m/kg
136 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
15.6 MN·m/kg

Modulus of Resilience

25 kJ/m³
3,817 kJ/m³

Thermal Diffusivity

98.5 mm²/s
30.3 mm²/s

Thermal Shock Resistance Index

40
55

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 scaleC12200C17000

Manufacturing and finishing

CapabilityC12200C17000
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 C17000 — frequently asked

Is C17000 stronger than C12200?

Yes. C17000 has a typical yield strength of 1,000 MPa (145 ksi) against 76 MPa (11 ksi) for C12200 — about 13 times as much. Tensile strength is 1,140 MPa (165 ksi) vs 235 MPa (34.1 ksi).

Which is cheaper, C12200 or C17000?

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 C17000?

C17000. Its machinability rates fair (40/100) against poor (20/100) for C12200; for welding the order is C12200 first (excellent, 85/100) then C17000 (fair, 50/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C12200 and C17000 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.