Copper Alloy C15900-H04 vs C15900-HIP
Copper Alloy · C15900 temper comparison
C15900-H04 and C15900-HIP are two conditions of the same copper alloy grade, C15900: H04 (full hard) versus HIP (hot isostatic pressed). The chemistry is identical, so every difference below comes from the condition. C15900-H04 is the stronger of the two: yield strength 505 MPa (73.2 ksi) against 310 MPa (45 ksi) for C15900-HIP, about 63% more; tensile strength follows at 550 MPa (79.8 ksi) vs 400 MPa (58 ksi). In exchange, C15900-HIP is the more ductile: elongation 22% versus 12% for C15900-H04, and C15900-H04 is harder (145 HB vs 105 HB). C15900-HIP runs hotter in service (550°C vs 500°C continuous).
C15900-H04Choose it when strength drives the design.
C15900-HIPChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C15900-H04 vs C15900-HIP: 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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 48 GPa7 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 8.86 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,083°C1,981 °F · Liquidus Temperature 1,083°C1,981 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.6 µm/m·K9.2 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Min Service Temperature -269°C-452 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.22 V · Corrosion Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 85 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 65 MJ/kg27,945 BTU/lb · Embodied Carbon (primary production) 4.2 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 5%
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.
C15900-H04 vs C15900-HIP — frequently asked
Is C15900-H04 stronger than C15900-HIP?
Yes. C15900-H04 has a typical yield strength of 505 MPa (73.2 ksi) against 310 MPa (45 ksi) for C15900-HIP — about 63% more. Tensile strength is 550 MPa (79.8 ksi) vs 400 MPa (58 ksi).
Which condition does FabDigit quote by default, H04 or HIP?
H04 is the default C15900 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 is easier to machine, C15900-H04 or C15900-HIP?
C15900-HIP, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for C15900-H04.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C15900-H04 and C15900-HIP 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.