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Copper Alloy C90800-M01 vs C90800-M02

Copper Alloy · C90800 temper comparison

C90800-M01 and C90800-M02 are two conditions of the same copper alloy grade, C90800: M01 (as sand cast) versus M02 (as centrifugally cast). The chemistry is identical, so every difference below comes from the condition. C90800-M02 is the stronger of the two: yield strength 170 MPa (24.7 ksi) against 152 MPa (22 ksi) for C90800-M01, about 12% more; tensile strength follows at 330 MPa (47.9 ksi) vs 303 MPa (43.9 ksi). C90800-M02 is the more ductile: elongation 6% versus 5% for C90800-M01, and C90800-M02 is harder (85 HB vs 80 HB).

C90800-M02Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

C90800-M01 vs C90800-M02: properties

C90800-M01C90800-M02

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

303 MPa43.9 ksi
330 MPa47.9 ksi

Yield Strength (0.2% offset)

152 MPa22 ksi
170 MPa24.7 ksi

Elongation at Break

5%
6%

Reduction in Area

6%
7%

Compressive Strength

420 MPa60.9 ksi
450 MPa65.3 ksi

Shear Strength

215 MPa31.2 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

100 MPa14.5 ksi
110 MPa16 ksi

Charpy V-Notch Impact (RT)

7 J5.2 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

80 HB
85 HB

Hardness, Rockwell B

42 HRB
48 HRB

Hardness, Vickers

84 HV
89 HV

Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Shear Modulus 38 GPa5.5 Msi · Bulk Modulus 108 GPa15.7 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.8 g/cm³0.32 lb/in³ · Melting Point (Solidus) 854°C1,569 °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 47 W/m·K27.2 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 180 J/g77.4 BTU/lb · Max Service Temperature (continuous) 260°C500 °F · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10.5 % IACS · Electrical Resistivity 1.64×10⁻⁷ Ω·m6.46 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

68 / 100
70 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V

Manufacturability

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

Same in both: Machinability 30 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 20 / 100 · Formability (cold) 8 / 100 · Castability 68 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 62 MJ/kg26,655 BTU/lb · Embodied Carbon (primary production) 4.6 kg CO₂/kg · Embodied Water 260 L/kg31.2 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 scaleC90800

C90800-M01 vs C90800-M02 — frequently asked

Is C90800-M02 stronger than C90800-M01?

Yes. C90800-M02 has a typical yield strength of 170 MPa (24.7 ksi) against 152 MPa (22 ksi) for C90800-M01 — about 12% more. Tensile strength is 330 MPa (47.9 ksi) vs 303 MPa (43.9 ksi).

Which condition does FabDigit quote by default, M01 or M02?

M01 is the default C90800 condition in the FabDigit quote flow. 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 C90800-M01 over C90800-M02?

Pick C90800-M02 when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C90800-M01 and C90800-M02 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.