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Copper Alloy C15100-H01 vs C15100-H08

Copper Alloy · C15100 temper comparison

C15100-H01 and C15100-H08 are two conditions of the same copper alloy grade, C15100: H01 (quarter hard) versus H08 (spring hard). The chemistry is identical, so every difference below comes from the condition. C15100-H08 is the stronger of the two: yield strength 405 MPa (58.7 ksi) against 215 MPa (31.2 ksi) for C15100-H01, about 88% more; tensile strength follows at 430 MPa (62.4 ksi) vs 275 MPa (39.9 ksi). In exchange, C15100-H01 is the more ductile: elongation 25% versus 3% for C15100-H08, and C15100-H08 is harder (128 HB vs 70 HB).

C15100-H01Choose it when the part is bent, formed or impact-loaded.

C15100-H08Choose it when strength drives the design.

C15100-H01 vs C15100-H08: properties

C15100-H01C15100-H08

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

275 MPa39.9 ksi
430 MPa62.4 ksi

Yield Strength (0.2% offset)

215 MPa31.2 ksi
405 MPa58.7 ksi

Elongation at Break

25%
3%

Shear Strength

175 MPa25.4 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

115 MPa16.7 ksi
170 MPa24.7 ksi

Hardness, Brinell

70 HB
128 HB

Hardness, Rockwell B

35 HRB
75 HRB

Hardness, Vickers

78 HV
140 HV

Same in both: Elastic (Young's) Modulus 120 GPa17.4 Msi · Shear Modulus 45 GPa6.5 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Same in both: Density 8.89 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,080°C1,976 °F · Liquidus Temperature 1,085°C1,985 °F

Thermal

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

Thermal Conductivity

362 W/m·K209 BTU/hr·ft·°F
344 W/m·K199 BTU/hr·ft·°F

Max Service Temperature (continuous)

420°C788 °F
450°C842 °F

Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.6 µm/m·K9.8 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

94 % IACS
90 % IACS

Electrical Resistivity

1.83×10⁻⁸ Ω·m0.72 µΩ·in
1.92×10⁻⁸ Ω·m0.756 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 60 / 100

Manufacturability

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

Machinability

20 / 100
25 / 100

Formability (cold)

75 / 100
22 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 45 / 100 · Castability 45 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 25%

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 scaleC15100

C15100-H01 vs C15100-H08 — frequently asked

Is C15100-H08 stronger than C15100-H01?

Yes. C15100-H08 has a typical yield strength of 405 MPa (58.7 ksi) against 215 MPa (31.2 ksi) for C15100-H01 — about 88% more. Tensile strength is 430 MPa (62.4 ksi) vs 275 MPa (39.9 ksi).

Which condition does FabDigit quote by default, H01 or H08?

H04 is the default C15100 condition in the FabDigit quote flow (neither H01 nor H08). 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, C15100-H01 or C15100-H08?

C15100-H08, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for C15100-H01.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C15100-H01 and C15100-H08 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.