Copper Alloy C51900-H01 vs C51900-H06
Copper Alloy · C51900 temper comparison
C51900-H01 and C51900-H06 are two conditions of the same copper alloy grade, C51900: H01 (quarter hard) versus H06 (extra hard). The chemistry is identical, so every difference below comes from the condition. C51900-H06 is the stronger of the two: yield strength 590 MPa (85.6 ksi) against 340 MPa (49.3 ksi) for C51900-H01, about 74% more; tensile strength follows at 655 MPa (95 ksi) vs 450 MPa (65.3 ksi). In exchange, C51900-H01 is the more ductile: elongation 35% versus 7% for C51900-H06, and C51900-H06 is harder (193 HB vs 128 HB). C51900-H01 runs hotter in service (200°C vs 150°C continuous).
C51900-H01Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C51900-H06Choose it when strength drives the design.
C51900-H01 vs C51900-H06: 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
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 115 GPa16.7 Msi · Shear Modulus 43 GPa6.2 Msi · Bulk Modulus 120 GPa17.4 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.8 g/cm³0.32 lb/in³ · Melting Point (Solidus) 910°C1,670 °F · Liquidus Temperature 1,040°C1,904 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 67 W/m·K38.7 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18.5 µm/m·K10.3 µin/in·°F · Latent Heat of Fusion 175 J/g75.2 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) -0.28 V · Corrosion Resistance 70 / 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 90 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 62 MJ/kg26,655 BTU/lb · Embodied Carbon (primary production) 4.2 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.
C51900-H01 vs C51900-H06 — frequently asked
Is C51900-H06 stronger than C51900-H01?
Yes. C51900-H06 has a typical yield strength of 590 MPa (85.6 ksi) against 340 MPa (49.3 ksi) for C51900-H01 — about 74% more. Tensile strength is 655 MPa (95 ksi) vs 450 MPa (65.3 ksi).
Which condition does FabDigit quote by default, H01 or H06?
H02 is the default C51900 condition in the FabDigit quote flow (neither H01 nor H06). 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, C51900-H01 or C51900-H06?
C51900-H06, by a small margin. Both rate poor for machinability — 30/100 against 22/100 for C51900-H01; for welding the order is C51900-H01 first (fair, 45/100) then C51900-H06 (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C51900-H01 and C51900-H06 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.