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Copper Alloy C27200 vs C33000

Copper Alloy · grade comparison

Copper Alloy C27200 and C33000 are both copper alloy grades. Both yield at about 110 MPa — strength does not separate them. C27200 is harder — 60 HB against 55 HB for C33000 — which matters for wear surfaces and threads. On the shop floor, C33000 machines more easily (very good vs poor), C27200 welds better (fair vs poor), and C27200 forms better (95 vs 85 out of 100).

C27200Choose it when surface hardness matters, or when it will be welded.

C33000Choose it when the part is machined in volume.

C27200 vs C33000: properties

C27200C33000

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

330 MPa47.9 ksi
340 MPa49.3 ksi

Reduction in Area

65%
62%

Fatigue Strength (Endurance Limit)

97 MPa14.1 ksi
105 MPa15.2 ksi

Hardness, Brinell

60 HB
55 HB

Hardness, Rockwell B

55 HRB
—

Hardness, Vickers

65 HV
58 HV

Charpy V-Notch Impact (RT)

—
55 J40.6 ft·lbf

Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 111 GPa16.1 Msi · Poisson's Ratio 0.34 · Yield Strength (0.2% offset) 110 MPa16 ksi · Elongation at Break 55% · Shear Strength 220 MPa31.9 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

905°C1,661 °F
899°C1,650 °F

Liquidus Temperature

930°C1,706 °F
954°C1,749 °F

Same in both: Density 8.47 g/cm³0.31 lb/in³

Thermal

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

Thermal Conductivity

123 W/m·K71.1 BTU/hr·ft·°F
121 W/m·K69.9 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

20.3 µm/m·K11.3 µin/in·°F
20.2 µm/m·K11.2 µin/in·°F

Latent Heat of Fusion

160 J/g68.8 BTU/lb
170 J/g73.1 BTU/lb

Same in both: Specific Heat Capacity 375 J/kg·K0.09 BTU/lb·°F · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

27 % IACS
26 % IACS

Electrical Resistivity

6.4×10⁻⁸ Ω·m2.52 µΩ·in
6.6×10⁻⁸ Ω·m2.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
55 / 100

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

30 / 100
70 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
180%

Weldability

45 / 100
25 / 100

Formability (cold)

95 / 100
85 / 100

Castability

45 / 100
—

Brazeability / Solderability

92 / 100
85 / 100

Polishability

85 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

65 MJ/kg27,945 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

4.5 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

280 L/kg33.6 gal/lb
180 L/kg21.6 gal/lb

Typical Recycled Content

45%
50%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

39 kN·m/kg
40 kN·m/kg

Thermal Diffusivity

38.7 mm²/s
38.1 mm²/s

Thermal Shock Resistance Index

19
20

Same in both: Specific Stiffness (E / density) 12.2 MN·m/kg · Modulus of Resilience 59 kJ/m³

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 scaleC33000C27200

Manufacturing and finishing

CapabilityC27200C33000
CNC machining—Yes
Sheet metal—Yes
Default condition—O
Relative cost$$$$ High$$$$ High
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
Chrome Plating—Yes
Electropolishing—Yes
Nickel Plating—Yes
Painting—Yes
Tin Plating—Yes

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

C27200 vs C33000 — frequently asked

What is the difference between C27200 and C33000?

Copper Alloy C27200 and C33000 are both copper alloy grades. Both yield at about 110 MPa — strength does not separate them. C27200 is harder — 60 HB against 55 HB for C33000 — which matters for wear surfaces and threads.

Which is cheaper, C27200 or C33000?

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, C27200 or C33000?

C33000. Its machinability rates very good (70/100) against poor (30/100) for C27200; for welding the order is C27200 first (fair, 45/100) then C33000 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C27200 and C33000 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.