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Copper Alloy C90200-M02 vs C90200-M07

Copper Alloy · C90200 temper comparison

C90200-M02 and C90200-M07 are two conditions of the same copper alloy grade, C90200: M02 (as centrifugally cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 138 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as centrifugally cast versus as continuous cast). C90200-M02 is the more ductile: elongation 25% versus 22% for C90200-M07, and C90200-M07 is harder (70 HB vs 65 HB).

C90200-M02Choose it when the part is bent, formed or impact-loaded.

C90200-M02 vs C90200-M07: properties

C90200-M02C90200-M07

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
105 GPa15.2 Msi

Tensile Strength (Ultimate)

300 MPa43.5 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

138 MPa20 ksi
145 MPa21 ksi

Elongation at Break

25%
22%

Reduction in Area

24%
22%

Compressive Strength

260 MPa37.7 ksi
275 MPa39.9 ksi

Shear Strength

215 MPa31.2 ksi
220 MPa31.9 ksi

Fatigue Strength (Endurance Limit)

100 MPa14.5 ksi
105 MPa15.2 ksi

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
16 J11.8 ft·lbf

Hardness, Brinell

65 HB
70 HB

Hardness, Rockwell B

32 HRB
36 HRB

Hardness, Vickers

68 HV
73 HV

Same in both: Shear Modulus 38 GPa5.5 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.72 g/cm³0.32 lb/in³ · Melting Point (Solidus) 855°C1,571 °F · Liquidus Temperature 1,000°C1,832 °F

Thermal

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

Same in both: Thermal Conductivity 71 W/m·K41 BTU/hr·ft·°F · 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 190 J/g81.7 BTU/lb · Max Service Temperature (continuous) 230°C446 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 14 % IACS · Electrical Resistivity 1.23×10⁻⁷ Ω·m4.84 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

73 / 100
74 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V

Manufacturability

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

Machinability

32 / 100
33 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 30% · Weldability 45 / 100 · Formability (cold) 10 / 100 · Castability 70 / 100 · Brazeability / Solderability 85 / 100 · Polishability 65 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 70%

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 scaleC90200

C90200-M02 vs C90200-M07 — frequently asked

What is the difference between C90200-M02 and C90200-M07?

C90200-M02 and C90200-M07 are two conditions of the same copper alloy grade, C90200: M02 (as centrifugally cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 138 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as centrifugally cast versus as continuous cast).

Which condition does FabDigit quote by default, M02 or M07?

M01 is the default C90200 condition in the FabDigit quote flow (neither M02 nor M07). 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.

When should I choose C90200-M02 over C90200-M07?

Pick C90200-M02 when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C90200-M02 and C90200-M07 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.