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Copper Alloy C64210-M11 vs C64210-O60

Copper Alloy · C64210 temper comparison

C64210-M11 and C64210-O60 are two conditions of the same copper alloy grade, C64210: M11 (as forged and quenched) versus O60 (soft annealed). The chemistry is identical, so every difference below comes from the condition. C64210-M11 is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 205 MPa (29.7 ksi) for C64210-O60, about 34% more; tensile strength follows at 586 MPa (85 ksi) vs 483 MPa (70.1 ksi). In exchange, C64210-O60 is the more ductile: elongation 35% versus 25% for C64210-M11, and C64210-M11 is harder (165 HB vs 130 HB). On the shop floor, C64210-M11 machines more easily (good vs fair).

C64210-M11Choose it when strength drives the design, or when the part is machined in volume.

C64210-O60Choose it when the part is bent, formed or impact-loaded.

C64210-M11 vs C64210-O60: properties

C64210-M11C64210-O60

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

586 MPa85 ksi
483 MPa70.1 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
205 MPa29.7 ksi

Elongation at Break

25%
35%

Reduction in Area

35%
45%

Compressive Strength

420 MPa60.9 ksi
230 MPa33.4 ksi

Shear Strength

370 MPa53.7 ksi
320 MPa46.4 ksi

Fatigue Strength (Endurance Limit)

210 MPa30.5 ksi
170 MPa24.7 ksi

Charpy V-Notch Impact (RT)

28 J20.7 ft·lbf
48 J35.4 ft·lbf

Hardness, Brinell

165 HB
130 HB

Hardness, Rockwell B

83 HRB
65 HRB

Hardness, Vickers

195 HV
138 HV

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 115 GPa16.7 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Same in both: Density 7.69 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,027°C1,881 °F · Liquidus Temperature 1,046°C1,915 °F

Thermal

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

Thermal Conductivity

44 W/m·K25.4 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7 % IACS
7.5 % IACS

Electrical Resistivity

2.46×10⁻⁷ Ω·m9.69 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

76 / 100
78 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.31 V

Manufacturability

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

Machinability

55 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
50%

Weldability

62 / 100
68 / 100

Formability (cold)

40 / 100
70 / 100

Same in both: Castability 45 / 100 · Brazeability / Solderability 35 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 35%

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 scaleC64210

C64210-M11 vs C64210-O60 — frequently asked

Is C64210-M11 stronger than C64210-O60?

Yes. C64210-M11 has a typical yield strength of 275 MPa (39.9 ksi) against 205 MPa (29.7 ksi) for C64210-O60 — about 34% more. Tensile strength is 586 MPa (85 ksi) vs 483 MPa (70.1 ksi).

Which condition does FabDigit quote by default, M11 or O60?

H04 is the default C64210 condition in the FabDigit quote flow (neither M11 nor O60). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, C64210-M11 or C64210-O60?

C64210-M11. Its machinability rates good (55/100) against fair (45/100) for C64210-O60; for welding the order is C64210-O60 first (good, 68/100) then C64210-M11 (good, 62/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C64210-M11 and C64210-O60 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.