Copper Alloy C68100-ANN vs C68100-AW
Copper Alloy · C68100 temper comparison
C68100-ANN and C68100-AW are two conditions of the same copper alloy grade, C68100: ANN (annealed) versus AW (as-welded deposit). The chemistry is identical, so every difference below comes from the condition. C68100-AW is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 160 MPa (23.2 ksi) for C68100-ANN, about 19% more; tensile strength follows at 415 MPa (60.2 ksi) vs 390 MPa (56.6 ksi). In exchange, C68100-ANN is the more ductile: elongation 30% versus 25% for C68100-AW, and C68100-AW is harder (105 HB vs 90 HB).
C68100-ANNChoose it when the part is bent, formed or impact-loaded.
C68100-AWChoose it when strength drives the design.
C68100-ANN vs C68100-AW: 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.
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, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 100 GPa14.5 Msi · 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 8.4 g/cm³0.3 lb/in³ · Melting Point (Solidus) 866°C1,591 °F · Liquidus Temperature 888°C1,630 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21 µm/m·K11.7 µin/in·°F · Latent Heat of Fusion 170 J/g73.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °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) -0.28 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 80 / 100 · Castability 70 / 100 · Brazeability / Solderability 90 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 40%
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.
C68100-ANN vs C68100-AW — frequently asked
Is C68100-AW stronger than C68100-ANN?
Yes. C68100-AW has a typical yield strength of 190 MPa (27.6 ksi) against 160 MPa (23.2 ksi) for C68100-ANN — about 19% more. Tensile strength is 415 MPa (60.2 ksi) vs 390 MPa (56.6 ksi).
Which condition does FabDigit quote by default, ANN or AW?
AW is the default C68100 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 is easier to machine, C68100-ANN or C68100-AW?
C68100-AW, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for C68100-ANN.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C68100-ANN and C68100-AW 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.