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Copper Alloy C11000-H01 vs C11000-H04

Copper Alloy · C11000 temper comparison

C11000-H01 and C11000-H04 are two conditions of the same copper alloy grade, C11000: H01 (quarter hard) versus H04 (full hard). The chemistry is identical, so every difference below comes from the condition. C11000-H04 is the stronger of the two: yield strength 310 MPa (45 ksi) against 205 MPa (29.7 ksi) for C11000-H01, about 51% more; tensile strength follows at 345 MPa (50 ksi) vs 262 MPa (38 ksi). In exchange, C11000-H01 is the more ductile: elongation 25% versus 6% for C11000-H04, and C11000-H04 is harder (100 HB vs 75 HB). C11000-H04 is stiffer (128 GPa vs 115 GPa) and C11000-H01 runs hotter in service (150°C vs 120°C continuous).

C11000-H01Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C11000-H04Choose it when strength drives the design.

C11000-H01 vs C11000-H04: properties

C11000-H01C11000-H04

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

115 GPa16.7 Msi
128 GPa18.6 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
345 MPa50 ksi

Yield Strength (0.2% offset)

205 MPa29.7 ksi
310 MPa45 ksi

Elongation at Break

25%
6%

Reduction in Area

60%
45%

Shear Strength

180 MPa26.1 ksi
200 MPa29 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
117 MPa17 ksi

Hardness, Brinell

75 HB
100 HB

Hardness, Vickers

79 HV
110 HV

Same in both: Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.94 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,065°C1,949 °F · Liquidus Temperature 1,083°C1,981 °F

Thermal

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

Thermal Conductivity

386 W/m·K223 BTU/hr·ft·°F
380 W/m·K220 BTU/hr·ft·°F

Max Service Temperature (continuous)

150°C302 °F
120°C248 °F

Same in both: Specific Heat Capacity 385 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 205 J/g88.1 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

98 % IACS
97 % IACS

Electrical Resistivity

1.76×10⁻⁸ Ω·m0.693 µΩ·in
1.71×10⁻⁸ Ω·m0.673 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
60 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.32 V

Manufacturability

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

Machinability

30 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
30%

Weldability

32 / 100
35 / 100

Formability (cold)

80 / 100
45 / 100

Same in both: Castability 40 / 100 · Brazeability / Solderability 92 / 100 · Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 260 L/kg31.2 gal/lb · Typical Recycled Content 35%

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 scaleC11000

C11000-H01 vs C11000-H04 — frequently asked

Is C11000-H04 stronger than C11000-H01?

Yes. C11000-H04 has a typical yield strength of 310 MPa (45 ksi) against 205 MPa (29.7 ksi) for C11000-H01 — about 51% more. Tensile strength is 345 MPa (50 ksi) vs 262 MPa (38 ksi).

Which condition does FabDigit quote by default, H01 or H04?

O is the default C11000 condition in the FabDigit quote flow (neither H01 nor H04). 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, C11000-H01 or C11000-H04?

C11000-H01, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for C11000-H04.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C11000-H01 and C11000-H04 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.