Copper Alloy Cu-DXP Cast vs Cu-DXP-M
Copper Alloy · Cu-DXP temper comparison
Cu-DXP Cast and Cu-DXP-M are two conditions of the same copper alloy grade, Cu-DXP: Cast (as cast) versus M (thermomechanically controlled processed). The chemistry is identical, so every difference below comes from the condition. Cu-DXP-M is the stronger of the two: yield strength 80 MPa (11.6 ksi) against 60 MPa (8.7 ksi) for Cu-DXP Cast, about 33% more; tensile strength follows at 210 MPa (30.5 ksi) vs 180 MPa (26.1 ksi). Cu-DXP-M is the more ductile: elongation 40% versus 30% for Cu-DXP Cast, and Cu-DXP-M is harder (48 HB vs 42 HB). Cu-DXP-M is stiffer (117 GPa vs 110 GPa).
Cu-DXP-MChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Cu-DXP Cast vs Cu-DXP-M: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.94 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,083°C1,981 °F · Liquidus Temperature 1,083°C1,981 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 290 W/m·K168 BTU/hr·ft·°F · Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.7 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 70 % IACS · Electrical Resistivity 2.46×10⁻⁸ Ω·m0.969 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
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
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Castability 70 / 100 · Brazeability / Solderability 95 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb · Embodied Carbon (primary production) 3.8 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.
Cu-DXP Cast vs Cu-DXP-M — frequently asked
Is Cu-DXP-M stronger than Cu-DXP Cast?
Yes. Cu-DXP-M has a typical yield strength of 80 MPa (11.6 ksi) against 60 MPa (8.7 ksi) for Cu-DXP Cast — about 33% more. Tensile strength is 210 MPa (30.5 ksi) vs 180 MPa (26.1 ksi).
Which condition does FabDigit quote by default, Cast or M?
R220 is the default Cu-DXP condition in the FabDigit quote flow (neither Cast nor M). 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 welds better, Cu-DXP Cast or Cu-DXP-M?
Cu-DXP-M. Its weldability rates excellent (88/100) against very good (82/100) for Cu-DXP Cast.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Cu-DXP Cast and Cu-DXP-M 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.