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Copper Alloy C61600-H01 vs C61600-H02

Copper Alloy · C61600 temper comparison

C61600-H01 and C61600-H02 are two conditions of the same copper alloy grade, C61600: H01 (quarter hard) versus H02 (half hard). The chemistry is identical, so every difference below comes from the condition. C61600-H02 is the stronger of the two: yield strength 400 MPa (58 ksi) against 240 MPa (34.8 ksi) for C61600-H01, about 67% more; tensile strength follows at 515 MPa (74.7 ksi) vs 430 MPa (62.4 ksi). In exchange, C61600-H01 is the more ductile: elongation 40% versus 20% for C61600-H02, and C61600-H02 is harder (150 HB vs 112 HB). C61600-H01 runs hotter in service (230°C vs 210°C continuous).

C61600-H01Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C61600-H02Choose it when strength drives the design.

C61600-H01 vs C61600-H02: properties

C61600-H01C61600-H02

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

430 MPa62.4 ksi
515 MPa74.7 ksi

Yield Strength (0.2% offset)

240 MPa34.8 ksi
400 MPa58 ksi

Elongation at Break

40%
20%

Shear Strength

275 MPa39.9 ksi
305 MPa44.2 ksi

Fatigue Strength (Endurance Limit)

155 MPa22.5 ksi
170 MPa24.7 ksi

Hardness, Brinell

112 HB
150 HB

Hardness, Rockwell B

63 HRB
80 HRB

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 115 GPa16.7 Msi · Poisson's Ratio 0.32

Physical

Density and transition temperatures.

Same in both: Density 8.2 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,040°C1,904 °F · Liquidus Temperature 1,060°C1,940 °F

Thermal

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

Max Service Temperature (continuous)

230°C446 °F
210°C410 °F

Same in both: Thermal Conductivity 88 W/m·K50.8 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17 µm/m·K9.4 µin/in·°F · Latent Heat of Fusion 210 J/g90.3 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

18 % IACS
17.5 % IACS

Electrical Resistivity

9.6×10⁻⁸ Ω·m3.78 µΩ·in
9.9×10⁻⁸ Ω·m3.9 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

72 / 100
71 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V

Manufacturability

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

Machinability

35 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
35%

Weldability

75 / 100
70 / 100

Formability (cold)

75 / 100
55 / 100

Same in both: Castability 40 / 100 · Brazeability / Solderability 30 / 100 · Polishability 65 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 52 MJ/kg22,356 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 30%

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 scaleC61600

C61600-H01 vs C61600-H02 — frequently asked

Is C61600-H02 stronger than C61600-H01?

Yes. C61600-H02 has a typical yield strength of 400 MPa (58 ksi) against 240 MPa (34.8 ksi) for C61600-H01 — about 67% more. Tensile strength is 515 MPa (74.7 ksi) vs 430 MPa (62.4 ksi).

Which condition does FabDigit quote by default, H01 or H02?

O61 is the default C61600 condition in the FabDigit quote flow (neither H01 nor H02). 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, C61600-H01 or C61600-H02?

C61600-H02, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for C61600-H01; for welding the order is C61600-H01 first (very good, 75/100) then C61600-H02 (very good, 70/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C61600-H01 and C61600-H02 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.