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Copper Alloy C10100 vs C1201

Copper Alloy · grade comparison

Copper Alloy C10100 and C1201 are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. On the shop floor, C1201 machines more easily (30 vs 18 out of 100) and C1201 sits in a lower cost tier (high, $$$$) than C10100 (specialty, $$$$$).

C1201Choose it when the part is machined in volume, or when cost is the deciding factor.

C10100 vs C1201: properties

C10100C1201

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

235 MPa34.1 ksi
230 MPa33.4 ksi

Shear Strength

152 MPa22 ksi
150 MPa21.8 ksi

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34 · Yield Strength (0.2% offset) 69 MPa10 ksi · Elongation at Break 45% · Reduction in Area 75% · Fatigue Strength (Endurance Limit) 76 MPa11 ksi · Hardness, Brinell 45 HB · Hardness, Vickers 50 HV

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,083°C1,981 °F
1,065°C1,949 °F

Same in both: Density 8.94 g/cm³0.32 lb/in³ · Liquidus Temperature 1,083°C1,981 °F

Thermal

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

Thermal Conductivity

391 W/m·K226 BTU/hr·ft·°F
360 W/m·K208 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Min Service Temperature

-253°C-423 °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

101 % IACS
93 % IACS

Electrical Resistivity

1.71×10⁻⁸ Ω·m0.672 µΩ·in
1.85×10⁻⁸ Ω·m0.728 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.24 V
-0.3 V

Corrosion Resistance

58 / 100
68 / 100

Manufacturability

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

Machinability

18 / 100
30 / 100

Weldability

70 / 100
75 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Formability (cold) 95 / 100 · Brazeability / Solderability 95 / 100 · Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

60 MJ/kg25,795 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

5%
40%

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

Common Calculations

Ratios derived from the values above.

Thermal Diffusivity

113.6 mm²/s
104.6 mm²/s

Thermal Shock Resistance Index

44
40

Same in both: Specific Strength (UTS / density) 26 kN·m/kg · Specific Stiffness (E / density) 13.1 MN·m/kg · Modulus of Resilience 20 kJ/m³

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 scaleC10100C1201

Manufacturing and finishing

CapabilityC10100C1201
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$$ Specialty$$$$ 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.

C10100 vs C1201 — frequently asked

What is the difference between C10100 and C1201?

Copper Alloy C10100 and C1201 are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. On the shop floor, C1201 machines more easily (30 vs 18 out of 100) and C1201 sits in a lower cost tier (high, $$$$) than C10100 (specialty, $$$$$).

Which is cheaper, C10100 or C1201?

C1201 is the lower-cost material: it sits in the high tier ($$$$) while C10100 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, C10100 or C1201?

C1201, by a small margin. Both rate poor for machinability — 30/100 against 18/100 for C10100; for welding the order is C1201 first (very good, 75/100) then C10100 (very good, 70/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C10100 and C1201 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.