Copper Alloy C46500-H80 vs C46500-M30
Copper Alloy · C46500 temper comparison
C46500-H80 and C46500-M30 are two conditions of the same copper alloy grade, C46500: H80 (hard drawn) versus M30 (as hot extruded). The chemistry is identical, so every difference below comes from the condition. C46500-H80 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 170 MPa (24.7 ksi) for C46500-M30, about 124% more; tensile strength follows at 540 MPa (78.3 ksi) vs 380 MPa (55.1 ksi). In exchange, C46500-M30 is the more ductile: elongation 40% versus 15% for C46500-H80, and C46500-H80 is harder (145 HB vs 92 HB). C46500-M30 runs hotter in service (200°C vs 160°C continuous).
C46500-H80Choose it when strength drives the design.
C46500-M30Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C46500-H80 vs C46500-M30: 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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Shear Modulus 38 GPa5.5 Msi · Bulk Modulus 112 GPa16.2 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.41 g/cm³0.3 lb/in³ · Melting Point (Solidus) 885°C1,625 °F · Liquidus Temperature 900°C1,652 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 116 W/m·K67 BTU/hr·ft·°F · Specific Heat Capacity 376 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21.2 µm/m·K11.8 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 Resistivity
Same in both: Electrical Conductivity 26 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.27 V
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: Castability 55 / 100 · Brazeability / Solderability 88 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 58 MJ/kg24,936 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 45%
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.
C46500-H80 vs C46500-M30 — frequently asked
Is C46500-H80 stronger than C46500-M30?
Yes. C46500-H80 has a typical yield strength of 380 MPa (55.1 ksi) against 170 MPa (24.7 ksi) for C46500-M30 — about 124% more. Tensile strength is 540 MPa (78.3 ksi) vs 380 MPa (55.1 ksi).
Which condition does FabDigit quote by default, H80 or M30?
M20 is the default C46500 condition in the FabDigit quote flow (neither H80 nor M30). 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, C46500-H80 or C46500-M30?
C46500-M30. Its weldability rates fair (45/100) against fair (40/100) for C46500-H80.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C46500-H80 and C46500-M30 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.