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Copper Alloy C33000 vs C46200

Copper Alloy · grade comparison

Copper Alloy C33000 and C46200 are both copper alloy grades. C46200 is the stronger of the two: yield strength 180 MPa (26.1 ksi) against 110 MPa (16 ksi) for C33000, about 64% more; tensile strength follows at 400 MPa (58 ksi) vs 340 MPa (49.3 ksi). In exchange, C33000 is the more ductile: elongation 55% versus 40% for C46200, and C46200 is harder (100 HB vs 55 HB). On the shop floor, C33000 machines more easily (very good vs fair) and C46200 welds better (fair vs poor).

C33000Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C46200Choose it when strength drives the design, or when it will be welded.

C33000 vs C46200: properties

C33000C46200

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
100 GPa14.5 Msi

Shear Modulus

39 GPa5.7 Msi
38 GPa5.5 Msi

Bulk Modulus

111 GPa16.1 Msi
110 GPa16 Msi

Tensile Strength (Ultimate)

340 MPa49.3 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
180 MPa26.1 ksi

Elongation at Break

55%
40%

Reduction in Area

62%
50%

Shear Strength

220 MPa31.9 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

105 MPa15.2 ksi
138 MPa20 ksi

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
—

Hardness, Brinell

55 HB
100 HB

Hardness, Vickers

58 HV
105 HV

Hardness, Rockwell B

—
55 HRB

Same in both: Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.47 g/cm³0.31 lb/in³
8.41 g/cm³0.3 lb/in³

Melting Point (Solidus)

899°C1,650 °F
885°C1,625 °F

Liquidus Temperature

954°C1,749 °F
900°C1,652 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

121 W/m·K69.9 BTU/hr·ft·°F
116 W/m·K67 BTU/hr·ft·°F

Specific Heat Capacity

375 J/kg·K0.09 BTU/lb·°F
380 J/kg·K0.09 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

20.2 µm/m·K11.2 µin/in·°F
21.2 µm/m·K11.8 µin/in·°F

Same in both: Latent Heat of Fusion 170 J/g73.1 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 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)

-0.25 V
-0.3 V

Same in both: Corrosion Resistance 55 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

70 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

180%
90%

Weldability

25 / 100
45 / 100

Formability (cold)

85 / 100
45 / 100

Brazeability / Solderability

85 / 100
90 / 100

Castability

—
55 / 100

Same in both: Polishability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
57 MJ/kg24,506 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
3.9 kg CO₂/kg

Embodied Water

180 L/kg21.6 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

50%
45%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

40 kN·m/kg
48 kN·m/kg

Specific Stiffness (E / density)

12.2 MN·m/kg
11.9 MN·m/kg

Modulus of Resilience

59 kJ/m³
162 kJ/m³

Thermal Diffusivity

38.1 mm²/s
36.3 mm²/s

Thermal Shock Resistance Index

20
22

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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC33000C46200

Manufacturing and finishing

CapabilityC33000C46200
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$ High$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
Chrome PlatingYes—
ElectropolishingYes—
Nickel PlatingYes—
PaintingYes—
Tin PlatingYes—

They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C33000 vs C46200 — frequently asked

Is C46200 stronger than C33000?

Yes. C46200 has a typical yield strength of 180 MPa (26.1 ksi) against 110 MPa (16 ksi) for C33000 — about 64% more. Tensile strength is 400 MPa (58 ksi) vs 340 MPa (49.3 ksi).

Which is cheaper, C33000 or C46200?

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 is easier to machine, C33000 or C46200?

C33000. Its machinability rates very good (70/100) against fair (45/100) for C46200; for welding the order is C46200 first (fair, 45/100) then C33000 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C33000 and C46200 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.