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Copper Alloy C33500-H02 vs C33500-H06

Copper Alloy · C33500 temper comparison

C33500-H02 and C33500-H06 are two conditions of the same copper alloy grade, C33500: H02 (half hard) versus H06 (extra hard). The chemistry is identical, so every difference below comes from the condition. C33500-H06 is the stronger of the two: yield strength 425 MPa (61.6 ksi) against 345 MPa (50 ksi) for C33500-H02, about 23% more; tensile strength follows at 525 MPa (76.1 ksi) vs 420 MPa (60.9 ksi). In exchange, C33500-H02 is the more ductile: elongation 23% versus 6% for C33500-H06, and C33500-H06 is harder (155 HB vs 120 HB). C33500-H02 runs hotter in service (180°C vs 160°C continuous).

C33500-H02Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C33500-H06Choose it when strength drives the design.

C33500-H02 vs C33500-H06: properties

C33500-H02C33500-H06

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

420 MPa60.9 ksi
525 MPa76.1 ksi

Yield Strength (0.2% offset)

345 MPa50 ksi
425 MPa61.6 ksi

Elongation at Break

23%
6%

Shear Strength

275 MPa39.9 ksi
315 MPa45.7 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
165 MPa23.9 ksi

Hardness, Brinell

120 HB
155 HB

Hardness, Rockwell B

70 HRB
82 HRB

Hardness, Vickers

128 HV
165 HV

Same in both: Elastic (Young's) Modulus 97 GPa14.1 Msi · Shear Modulus 37 GPa5.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.47 g/cm³0.31 lb/in³ · Melting Point (Solidus) 900°C1,652 °F · Liquidus Temperature 930°C1,706 °F

Thermal

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

Max Service Temperature (continuous)

180°C356 °F
160°C320 °F

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 · Thermal Expansion (CTE, 20–100 °C) 20.3 µm/m·K11.3 µin/in·°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).

Same in both: Galvanic Potential (seawater, vs SCE) -0.26 V · Corrosion Resistance 45 / 100

Manufacturability

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

Machinability

58 / 100
63 / 100

Machinability Rating (AISI 1212 = 100 %)

100%
105%

Formability (cold)

70 / 100
35 / 100

Same in both: Weldability 22 / 100 · Brazeability / Solderability 80 / 100 · Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 58 MJ/kg24,936 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 65%

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 scaleC33500

C33500-H02 vs C33500-H06 — frequently asked

Is C33500-H06 stronger than C33500-H02?

Yes. C33500-H06 has a typical yield strength of 425 MPa (61.6 ksi) against 345 MPa (50 ksi) for C33500-H02 — about 23% more. Tensile strength is 525 MPa (76.1 ksi) vs 420 MPa (60.9 ksi).

Which condition does FabDigit quote by default, H02 or H06?

H02 is the default C33500 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, C33500-H02 or C33500-H06?

C33500-H06, by a small margin. Both rate good for machinability — 63/100 against 58/100 for C33500-H02.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C33500-H02 and C33500-H06 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.