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Copper Alloy C93900-M01 vs C93900-M07

Copper Alloy · C93900 temper comparison

C93900-M01 and C93900-M07 are two conditions of the same copper alloy grade, C93900: M01 (as sand cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. C93900-M07 is the stronger of the two: yield strength 152 MPa (22 ksi) against 138 MPa (20 ksi) for C93900-M01, about 10% more; tensile strength follows at 207 MPa (30 ksi) vs 193 MPa (28 ksi). In exchange, C93900-M01 is the more ductile: elongation 7% versus 5% for C93900-M07, and C93900-M07 is harder (70 HB vs 63 HB).

C93900-M01Choose it when the part is bent, formed or impact-loaded.

C93900-M07Choose it when strength drives the design.

C93900-M01 vs C93900-M07: properties

C93900-M01C93900-M07

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

193 MPa28 ksi
207 MPa30 ksi

Yield Strength (0.2% offset)

138 MPa20 ksi
152 MPa22 ksi

Elongation at Break

7%
5%

Reduction in Area

9%
7%

Compressive Strength

160 MPa23.2 ksi
172 MPa24.9 ksi

Shear Strength

141 MPa20.5 ksi
152 MPa22 ksi

Fatigue Strength (Endurance Limit)

62 MPa9 ksi
69 MPa10 ksi

Charpy V-Notch Impact (RT)

7 J5.2 ft·lbf
6 J4.4 ft·lbf

Hardness, Brinell

63 HB
70 HB

Hardness, Vickers

66 HV
74 HV

Same in both: Elastic (Young's) Modulus 76 GPa11 Msi · Shear Modulus 28 GPa4.1 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.78 g/cm³0.32 lb/in³ · Melting Point (Solidus) 762°C1,404 °F · Liquidus Temperature 943°C1,729 °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 251 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 150 J/g64.5 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 11.5 % IACS · Electrical Resistivity 1.5×10⁻⁷ Ω·m5.91 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.31 V · Corrosion Resistance 45 / 100

Manufacturability

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

Same in both: Machinability 82 / 100 · Machinability Rating (AISI 1212 = 100 %) 80% · Weldability 8 / 100 · Formability (cold) 5 / 100 · Castability 88 / 100 · Brazeability / Solderability 35 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 40 MJ/kg17,197 BTU/lb · Embodied Carbon (primary production) 2.8 kg CO₂/kg · Embodied Water 250 L/kg30 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 scaleC93900

C93900-M01 vs C93900-M07 — frequently asked

Is C93900-M07 stronger than C93900-M01?

Yes. C93900-M07 has a typical yield strength of 152 MPa (22 ksi) against 138 MPa (20 ksi) for C93900-M01 — about 10% more. Tensile strength is 207 MPa (30 ksi) vs 193 MPa (28 ksi).

Which condition does FabDigit quote by default, M01 or M07?

M07 is the default C93900 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 C93900-M01 over C93900-M07?

Pick C93900-M01 when the part is bent, formed or impact-loaded. Pick C93900-M07 when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C93900-M01 and C93900-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.