Copper Alloy C96300 vs C96400
Copper Alloy · grade comparison
Copper Alloy C96300 and C96400 are both copper alloy grades. Both yield at about 275 MPa — strength does not separate them. C96400 is the more ductile: elongation 25% versus 18% for C96300. C96300 conducts heat better (33 W/m·K vs 28 W/m·K).
C96400Choose it when the part is bent, formed or impact-loaded.
C96300 vs C96400: 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
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Charpy V-Notch Impact (RT)
Hardness, Rockwell B
Hardness, Vickers
Same in both: Poisson's Ratio 0.33 · Shear Strength 300 MPa43.5 ksi · Fatigue Strength (Endurance Limit) 150 MPa21.8 ksi · Hardness, Brinell 140 HB
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Same in both: Latent Heat of Fusion 210 J/g90.3 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -196°C-321 °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)
Castability
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Brazeability / Solderability 70 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 78 MJ/kg33,534 BTU/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | C96300 | C96400 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C96300 vs C96400 — frequently asked
What is the difference between C96300 and C96400?
Copper Alloy C96300 and C96400 are both copper alloy grades. Both yield at about 275 MPa — strength does not separate them. C96400 is the more ductile: elongation 25% versus 18% for C96300.
Which is cheaper, C96300 or C96400?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, C96300 or C96400?
C96400. Its weldability rates very good (80/100) against very good (75/100) for C96300.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C96300 and C96400 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.