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Copper Alloy CuAg0.07-H01 vs CuAg0.07-H04

Copper Alloy · CuAg0.07 temper comparison

CuAg0.07-H01 and CuAg0.07-H04 are two conditions of the same copper alloy grade, CuAg0.07: H01 (quarter hard) versus H04 (full hard). The chemistry is identical, so every difference below comes from the condition. CuAg0.07-H04 is the stronger of the two: yield strength 310 MPa (45 ksi) against 215 MPa (31.2 ksi) for CuAg0.07-H01, about 44% more; tensile strength follows at 350 MPa (50.8 ksi) vs 275 MPa (39.9 ksi). In exchange, CuAg0.07-H01 is the more ductile: elongation 25% versus 9% for CuAg0.07-H04, and CuAg0.07-H04 is harder (100 HB vs 70 HB).

CuAg0.07-H01Choose it when the part is bent, formed or impact-loaded.

CuAg0.07-H04Choose it when strength drives the design.

CuAg0.07-H01 vs CuAg0.07-H04: properties

CuAg0.07-H01CuAg0.07-H04

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

275 MPa39.9 ksi
350 MPa50.8 ksi

Yield Strength (0.2% offset)

215 MPa31.2 ksi
310 MPa45 ksi

Elongation at Break

25%
9%

Reduction in Area

70%
55%

Shear Strength

170 MPa24.7 ksi
200 MPa29 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
110 MPa16 ksi

Charpy V-Notch Impact (RT)

75 J55.3 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

70 HB
100 HB

Hardness, Rockwell B

32 HRB
45 HRB

Hardness, Vickers

75 HV
108 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 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.91 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

392 W/m·K226 BTU/hr·ft·°F
388 W/m·K224 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.7 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -250°C-418 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

99 % IACS
97 % IACS

Electrical Resistivity

1.74×10⁻⁸ Ω·m0.685 µΩ·in
1.78×10⁻⁸ Ω·m0.701 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 62 / 100

Manufacturability

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

Machinability

28 / 100
25 / 100

Formability (cold)

70 / 100
45 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 45 / 100 · Castability 55 / 100 · Brazeability / Solderability 90 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 220 L/kg26.4 gal/lb · Typical Recycled Content 20%

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 scaleCuAg0.07

CuAg0.07-H01 vs CuAg0.07-H04 — frequently asked

Is CuAg0.07-H04 stronger than CuAg0.07-H01?

Yes. CuAg0.07-H04 has a typical yield strength of 310 MPa (45 ksi) against 215 MPa (31.2 ksi) for CuAg0.07-H01 — about 44% more. Tensile strength is 350 MPa (50.8 ksi) vs 275 MPa (39.9 ksi).

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

H04 is the default CuAg0.07 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.

When should I choose CuAg0.07-H01 over CuAg0.07-H04?

Pick CuAg0.07-H01 when the part is bent, formed or impact-loaded. Pick CuAg0.07-H04 when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in CuAg0.07-H01 and CuAg0.07-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.