Copper Alloy C54400-H10 vs C54400-M20
Copper Alloy · C54400 temper comparison
C54400-H10 and C54400-M20 are two conditions of the same copper alloy grade, C54400: H10 (extra spring hard) versus M20 (as hot rolled). The chemistry is identical, so every difference below comes from the condition. C54400-H10 is the stronger of the two: yield strength 565 MPa (81.9 ksi) against 150 MPa (21.8 ksi) for C54400-M20, about 3.8 times as much; tensile strength follows at 605 MPa (87.7 ksi) vs 330 MPa (47.9 ksi). In exchange, C54400-M20 is the more ductile: elongation 40% versus 3% for C54400-H10, and C54400-H10 is harder (190 HB vs 70 HB). C54400-H10 is stiffer (110 GPa vs 103 GPa) and C54400-M20 runs hotter in service (200°C vs 150°C continuous).
C54400-H10Choose it when strength drives the design.
C54400-M20Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C54400-H10 vs C54400-M20: 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
Shear Modulus
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: Bulk Modulus 105 GPa15.2 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) 854°C1,569 °F · Liquidus Temperature 1,000°C1,832 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 87 W/m·K50.3 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.3 µm/m·K9.6 µin/in·°F · Latent Heat of Fusion 170 J/g73.1 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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Same in both: Machinability 80 / 100 · Machinability Rating (AISI 1212 = 100 %) 80%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 300 L/kg35.9 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.
C54400-H10 vs C54400-M20 — frequently asked
Is C54400-H10 stronger than C54400-M20?
Yes. C54400-H10 has a typical yield strength of 565 MPa (81.9 ksi) against 150 MPa (21.8 ksi) for C54400-M20 — about 3.8 times as much. Tensile strength is 605 MPa (87.7 ksi) vs 330 MPa (47.9 ksi).
Which condition does FabDigit quote by default, H10 or M20?
H04 is the default C54400 condition in the FabDigit quote flow (neither H10 nor M20). 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, C54400-H10 or C54400-M20?
C54400-M20. Its weldability rates poor (25/100) against poor (20/100) for C54400-H10.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C54400-H10 and C54400-M20 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.