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Copper Alloy C12200 vs M1

Copper Alloy · grade comparison

Copper Alloy C12200 and M1 are both copper alloy grades. Both yield at about 76 MPa — strength does not separate them. M1 conducts heat better (391 W/m·K vs 339 W/m·K). On the shop floor, C12200 welds better (excellent vs fair).

C12200Choose it when it will be welded.

C12200 vs M1: properties

C12200M1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

117 GPa17 Msi
115 GPa16.7 Msi

Yield Strength (0.2% offset)

76 MPa11 ksi
75 MPa10.9 ksi

Reduction in Area

75%
72%

Shear Strength

150 MPa21.8 ksi
152 MPa22 ksi

Hardness, Vickers

—
50 HV

Same in both: Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34 · Tensile Strength (Ultimate) 235 MPa34.1 ksi · Elongation at Break 45% · Fatigue Strength (Endurance Limit) 76 MPa11 ksi · Hardness, Brinell 45 HB

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

339 W/m·K196 BTU/hr·ft·°F
391 W/m·K226 BTU/hr·ft·°F

Min Service Temperature

-200°C-328 °F
-253°C-423 °F

Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17 µm/m·K9.4 µin/in·°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
101 % IACS

Electrical Resistivity

2.03×10⁻⁸ Ω·m0.799 µΩ·in
1.71×10⁻⁸ Ω·m0.673 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.3 V
-0.25 V

Corrosion Resistance

70 / 100
65 / 100

Manufacturability

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

Weldability

85 / 100
40 / 100

Formability (cold)

98 / 100
95 / 100

Brazeability / Solderability

100 / 100
92 / 100

Castability

—
35 / 100

Same in both: Machinability 20 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Polishability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

3.8 kg CO₂/kg
3.6 kg CO₂/kg

Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

13.1 MN·m/kg
12.9 MN·m/kg

Modulus of Resilience

25 kJ/m³
24 kJ/m³

Thermal Diffusivity

98.5 mm²/s
113.6 mm²/s

Thermal Shock Resistance Index

40
47

Same in both: Specific Strength (UTS / density) 26 kN·m/kg

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 scaleC12200M1

Manufacturing and finishing

CapabilityC12200M1
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 M1 — frequently asked

What is the difference between C12200 and M1?

Copper Alloy C12200 and M1 are both copper alloy grades. Both yield at about 76 MPa — strength does not separate them. M1 conducts heat better (391 W/m·K vs 339 W/m·K).

Which is cheaper, C12200 or M1?

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 M1?

C12200. Its weldability rates excellent (85/100) against fair (40/100) for M1.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C12200 and M1 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.