Copper Alloy C35300 vs C36000
Copper Alloy · grade comparison
Copper Alloy C35300 and C36000 are both copper alloy grades, both machining-friendly cu alloy. C35300 is the stronger of the two: yield strength 345 MPa (50 ksi) against 310 MPa (45 ksi) for C36000, about 11% more; tensile strength follows at 420 MPa (60.9 ksi) vs 385 MPa (55.8 ksi). C36000 is harder — 78 HRB against 70 HRB for C35300 — which matters for wear surfaces and threads. C36000 runs hotter in service (200°C vs 150°C continuous). On the shop floor, C36000 machines more easily (excellent vs very good), C35300 forms better (good vs poor), and C36000 sits in a lower cost tier (premium, $$$) than C35300 (high, $$$$).
C35300Choose it when strength drives the design.
C36000Choose it when surface hardness matters, or when the part sees heat.
C35300 vs C36000: 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.
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Hardness, Rockwell B
Hardness, Vickers
Reduction in Area
Charpy V-Notch Impact (RT)
Same in both: Elastic (Young's) Modulus 97 GPa14.1 Msi · Shear Modulus 37 GPa5.4 Msi · Fatigue Strength (Endurance Limit) 140 MPa20.3 ksi · Hardness, Brinell 115 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 Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 115 W/m·K66.4 BTU/hr·ft·°F · Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F · Latent Heat of Fusion 160 J/g68.8 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 26 % IACS · Electrical Resistivity 6.6×10⁻⁸ Ω·m2.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Castability
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Energy (primary production) 58 MJ/kg24,936 BTU/lb · Embodied Water 220 L/kg26.4 gal/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 | C35300 | C36000 |
|---|---|---|
| Default condition | H02 | H02 |
| Relative cost | $$$$ High | $$$ Premium |
| Min. machined wall | 0.8 mm | 0.5 mm |
| Best machined surface | Ra 1.6 µm | Ra 0.8 µm |
Both are offered for CNC machining. Both take the same 9 finishes: Chrome Plating, Copper Plating, Electroless Nickel (EN), Electropolishing, Gold Plating, Nickel Plating, Painting, Silver Plating, Tin Plating.
C35300 vs C36000 — frequently asked
Is C35300 stronger than C36000?
Yes. C35300 has a typical yield strength of 345 MPa (50 ksi) against 310 MPa (45 ksi) for C36000 — about 11% more. Tensile strength is 420 MPa (60.9 ksi) vs 385 MPa (55.8 ksi).
Which is cheaper, C35300 or C36000?
C36000 is the lower-cost material: it sits in the premium tier ($$$) while C35300 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, C35300 or C36000?
C36000. Its machinability rates excellent (100/100) against very good (70/100) for C35300; for welding the order is C36000 first (poor, 20/100) then C35300 (poor, 15/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C35300 and C36000 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.