Copper Alloy C19000-HR04 vs C19000-TF00
Copper Alloy · C19000 temper comparison
C19000-HR04 and C19000-TF00 are two conditions of the same copper alloy grade, C19000: HR04 (full hard, cold rolled and stress relieved) versus TF00 (solution heat treated and precipitation hardened). The chemistry is identical, so every difference below comes from the condition. C19000-HR04 is the stronger of the two: yield strength 517 MPa (75 ksi) against 310 MPa (45 ksi) for C19000-TF00, about 67% more; tensile strength follows at 552 MPa (80.1 ksi) vs 400 MPa (58 ksi). In exchange, C19000-TF00 is the more ductile: elongation 18% versus 5% for C19000-HR04, and C19000-HR04 is harder (170 HV vs 125 HV). C19000-TF00 runs hotter in service (250°C vs 180°C continuous) and C19000-TF00 conducts electricity better (48 % IACS vs 42 % IACS).
C19000-HR04Choose it when strength drives the design.
C19000-TF00Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C19000-HR04 vs C19000-TF00: 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, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 125 GPa18.1 Msi · Shear Modulus 46 GPa6.7 Msi · Bulk Modulus 138 GPa20 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.89 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,075°C1,967 °F · Liquidus Temperature 1,099°C2,010 °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 377 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
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V · Corrosion Resistance 58 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 55 / 100 · Castability 40 / 100 · Brazeability / Solderability 85 / 100 · Polishability 75 / 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 250 L/kg30 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.
C19000-HR04 vs C19000-TF00 — frequently asked
Is C19000-HR04 stronger than C19000-TF00?
Yes. C19000-HR04 has a typical yield strength of 517 MPa (75 ksi) against 310 MPa (45 ksi) for C19000-TF00 — about 67% more. Tensile strength is 552 MPa (80.1 ksi) vs 400 MPa (58 ksi).
Which condition does FabDigit quote by default, HR04 or TF00?
HR02 is the default C19000 condition in the FabDigit quote flow (neither HR04 nor TF00). 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, C19000-HR04 or C19000-TF00?
C19000-HR04, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for C19000-TF00.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C19000-HR04 and C19000-TF00 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.