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Copper Alloy C65500-H06 vs C65500-M10

Copper Alloy · C65500 temper comparison

C65500-H06 and C65500-M10 are two conditions of the same copper alloy grade, C65500: H06 (extra hard) versus M10 (as hot forged and air cooled). The chemistry is identical, so every difference below comes from the condition. C65500-H06 is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 175 MPa (25.4 ksi) for C65500-M10, about 3.1 times as much; tensile strength follows at 740 MPa (107 ksi) vs 415 MPa (60.2 ksi). In exchange, C65500-M10 is the more ductile: elongation 35% versus 8% for C65500-H06, and C65500-H06 is harder (210 HB vs 95 HB). C65500-M10 runs hotter in service (200°C vs 150°C continuous). On the shop floor, C65500-M10 welds better (excellent vs very good).

C65500-H06Choose it when strength drives the design.

C65500-M10Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C65500-H06 vs C65500-M10: properties

C65500-H06C65500-M10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

38.6 GPa5.6 Msi
39 GPa5.7 Msi

Bulk Modulus

115 GPa16.7 Msi
110 GPa16 Msi

Tensile Strength (Ultimate)

740 MPa107 ksi
415 MPa60.2 ksi

Yield Strength (0.2% offset)

550 MPa79.8 ksi
175 MPa25.4 ksi

Elongation at Break

8%
35%

Reduction in Area

20%
55%

Shear Strength

435 MPa63.1 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
165 MPa23.9 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

210 HB
95 HB

Hardness, Rockwell B

95 HRB
55 HRB

Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Liquidus Temperature

1,019°C1,866 °F
1,026°C1,879 °F

Same in both: Density 8.53 g/cm³0.31 lb/in³ · Melting Point (Solidus) 971°C1,780 °F

Thermal

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

Thermal Conductivity

34 W/m·K19.6 BTU/hr·ft·°F
36 W/m·K20.8 BTU/hr·ft·°F

Specific Heat Capacity

377 J/kg·K0.09 BTU/lb·°F
380 J/kg·K0.09 BTU/lb·°F

Latent Heat of Fusion

210 J/g90.3 BTU/lb
205 J/g88.1 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
200°C392 °F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.8 % IACS
7 % IACS

Electrical Resistivity

2.54×10⁻⁷ Ω·m10 µΩ·in
2.46×10⁻⁷ Ω·m9.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.27 V
-0.26 V

Same in both: Corrosion Resistance 70 / 100

Manufacturability

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

Machinability

38 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

38%
30%

Weldability

80 / 100
90 / 100

Formability (cold)

30 / 100
70 / 100

Brazeability / Solderability

85 / 100
75 / 100

Same in both: Castability 55 / 100 · Polishability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

60 MJ/kg25,795 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

4 kg CO₂/kg
3.5 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 40%

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 scaleC65500

C65500-H06 vs C65500-M10 — frequently asked

Is C65500-H06 stronger than C65500-M10?

Yes. C65500-H06 has a typical yield strength of 550 MPa (79.8 ksi) against 175 MPa (25.4 ksi) for C65500-M10 — about 3.1 times as much. Tensile strength is 740 MPa (107 ksi) vs 415 MPa (60.2 ksi).

Which condition does FabDigit quote by default, H06 or M10?

O is the default C65500 condition in the FabDigit quote flow (neither H06 nor M10). 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, C65500-H06 or C65500-M10?

C65500-H06. Its machinability rates fair (38/100) against poor (32/100) for C65500-M10; for welding the order is C65500-M10 first (excellent, 90/100) then C65500-H06 (very good, 80/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C65500-H06 and C65500-M10 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.