Copper Alloy C19700-H01 vs C19700-TM04
Copper Alloy · C19700 temper comparison
C19700-H01 and C19700-TM04 are two conditions of the same copper alloy grade, C19700: H01 (quarter hard) versus TM04 (mill hardened, full hard). The chemistry is identical, so every difference below comes from the condition. C19700-TM04 is the stronger of the two: yield strength 440 MPa (63.8 ksi) against 250 MPa (36.3 ksi) for C19700-H01, about 76% more; tensile strength follows at 460 MPa (66.7 ksi) vs 315 MPa (45.7 ksi). In exchange, C19700-H01 is the more ductile: elongation 18% versus 5% for C19700-TM04, and C19700-TM04 is harder (148 HV vs 100 HV). C19700-TM04 runs hotter in service (210°C vs 175°C continuous).
C19700-H01Choose it when the part is bent, formed or impact-loaded.
C19700-TM04Choose it when strength drives the design, or when the part sees heat.
C19700-H01 vs C19700-TM04: 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
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 45 GPa6.5 Msi · Bulk Modulus 138 GPa20 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) 1,075°C1,967 °F · Liquidus Temperature 1,085°C1,985 °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 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 -196°C-321 °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
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Brazeability / Solderability 95 / 100 · Polishability 80 / 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 260 L/kg31.2 gal/lb · Typical Recycled Content 30%
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.
C19700-H01 vs C19700-TM04 — frequently asked
Is C19700-TM04 stronger than C19700-H01?
Yes. C19700-TM04 has a typical yield strength of 440 MPa (63.8 ksi) against 250 MPa (36.3 ksi) for C19700-H01 — about 76% more. Tensile strength is 460 MPa (66.7 ksi) vs 315 MPa (45.7 ksi).
Which condition does FabDigit quote by default, H01 or TM04?
H04 is the default C19700 condition in the FabDigit quote flow (neither H01 nor TM04). 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, C19700-H01 or C19700-TM04?
C19700-H01. Its weldability rates fair (45/100) against fair (40/100) for C19700-TM04.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C19700-H01 and C19700-TM04 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.