Copper Alloy Cu-ETP1 Cast vs Cu-ETP1-M
Copper Alloy · Cu-ETP1 temper comparison
Cu-ETP1 Cast and Cu-ETP1-M are two conditions of the same copper alloy grade, Cu-ETP1: Cast (as cast) versus M (thermomechanically controlled processed). The chemistry is identical, so every difference below comes from the condition. Cu-ETP1-M is the stronger of the two: yield strength 70 MPa (10.2 ksi) against 55 MPa (7.98 ksi) for Cu-ETP1 Cast, about 27% more; tensile strength follows at 220 MPa (31.9 ksi) vs 175 MPa (25.4 ksi). Cu-ETP1-M is the more ductile: elongation 40% versus 30% for Cu-ETP1 Cast, and Cu-ETP1-M is harder (45 HB vs 40 HB). Cu-ETP1-M is stiffer (117 GPa vs 110 GPa).
Cu-ETP1-MChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Cu-ETP1 Cast vs Cu-ETP1-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)
Charpy V-Notch Impact (RT)
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 8.93 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,065°C1,949 °F · Liquidus Temperature 1,083°C1,981 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17 µm/m·K9.4 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -250°C-418 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
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 45 / 100 · Brazeability / Solderability 85 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 350 L/kg41.9 gal/lb · Typical Recycled Content 10%
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-ETP1 Cast vs Cu-ETP1-M — frequently asked
Is Cu-ETP1-M stronger than Cu-ETP1 Cast?
Yes. Cu-ETP1-M has a typical yield strength of 70 MPa (10.2 ksi) against 55 MPa (7.98 ksi) for Cu-ETP1 Cast — about 27% more. Tensile strength is 220 MPa (31.9 ksi) vs 175 MPa (25.4 ksi).
Which condition does FabDigit quote by default, Cast or M?
M is the default Cu-ETP1 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.
Which welds better, Cu-ETP1 Cast or Cu-ETP1-M?
Cu-ETP1-M. Its weldability rates fair (50/100) against fair (45/100) for Cu-ETP1 Cast.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Cu-ETP1 Cast and Cu-ETP1-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.