Copper Alloy C75200-H02 vs C75200-H04
Copper Alloy · C75200 temper comparison
C75200-H02 and C75200-H04 are two conditions of the same copper alloy grade, C75200: H02 (half hard) versus H04 (full hard). The chemistry is identical, so every difference below comes from the condition. C75200-H04 is the stronger of the two: yield strength 517 MPa (75 ksi) against 427 MPa (61.9 ksi) for C75200-H02, about 21% more; tensile strength follows at 586 MPa (85 ksi) vs 517 MPa (75 ksi). In exchange, C75200-H02 is the more ductile: elongation 6% versus 3% for C75200-H04, and C75200-H04 is harder (177 HB vs 160 HB). C75200-H02 runs hotter in service (200°C vs 180°C continuous).
C75200-H02Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C75200-H04Choose it when strength drives the design.
C75200-H02 vs C75200-H04: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 125 GPa18.1 Msi · Shear Modulus 47 GPa6.8 Msi · Bulk Modulus 122 GPa17.7 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 8.73 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,021°C1,870 °F · Liquidus Temperature 1,110°C2,030 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 33 W/m·K19.1 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.2 µm/m·K9 µin/in·°F · Latent Heat of Fusion 200 J/g86 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 6 % IACS · Electrical Resistivity 2.87×10⁻⁷ Ω·m11.3 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.26 V · Corrosion Resistance 65 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Castability 40 / 100 · Brazeability / Solderability 85 / 100 · Polishability 92 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 82 MJ/kg35,254 BTU/lb · Embodied Carbon (primary production) 5.6 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 40%
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.
C75200-H02 vs C75200-H04 — frequently asked
Is C75200-H04 stronger than C75200-H02?
Yes. C75200-H04 has a typical yield strength of 517 MPa (75 ksi) against 427 MPa (61.9 ksi) for C75200-H02 — about 21% more. Tensile strength is 586 MPa (85 ksi) vs 517 MPa (75 ksi).
Which condition does FabDigit quote by default, H02 or H04?
H02 is the default C75200 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 welds better, C75200-H02 or C75200-H04?
C75200-H02. Its weldability rates fair (45/100) against fair (40/100) for C75200-H04.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C75200-H02 and C75200-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.