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Copper Alloy C51000 vs C60800

Copper Alloy · grade comparison

Copper Alloy C51000 and C60800 are both copper alloy grades. C60800 is the stronger of the two: yield strength 186 MPa (27 ksi) against 140 MPa (20.3 ksi) for C51000, about 33% more; tensile strength follows at 415 MPa (60.2 ksi) vs 340 MPa (49.3 ksi). C60800 is harder — 100 HB against 80 HB for C51000 — which matters for wear surfaces and threads. C60800 is lighter (8.17 g/cm³ vs 8.86 g/cm³ for C51000) and C60800 is stiffer (117 GPa vs 110 GPa). On the shop floor, C60800 welds better (very good vs fair) and C60800 sits in a lower cost tier (high, $$$$) than C51000 (specialty, $$$$$).

C60800Choose it when strength drives the design, or when surface hardness matters.

C51000 vs C60800: properties

C51000C60800

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
117 GPa17 Msi

Shear Modulus

41 GPa5.9 Msi
44 GPa6.4 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

340 MPa49.3 ksi
415 MPa60.2 ksi

Yield Strength (0.2% offset)

140 MPa20.3 ksi
186 MPa27 ksi

Elongation at Break

60%
55%

Shear Strength

235 MPa34.1 ksi
255 MPa37 ksi

Hardness, Brinell

80 HB
100 HB

Hardness, Vickers

85 HV
105 HV

Reduction in Area

—
65%

Charpy V-Notch Impact (RT)

—
55 J40.6 ft·lbf

Hardness, Rockwell B

—
55 HRB

Same in both: Bulk Modulus 115 GPa16.7 Msi · Fatigue Strength (Endurance Limit) 150 MPa21.8 ksi

Physical

Density and transition temperatures.

Density

8.86 g/cm³0.32 lb/in³
8.17 g/cm³0.3 lb/in³

Melting Point (Solidus)

954°C1,749 °F
1,035°C1,895 °F

Liquidus Temperature

1,049°C1,920 °F
1,055°C1,931 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

69 W/m·K39.9 BTU/hr·ft·°F
82 W/m·K47.4 BTU/hr·ft·°F

Specific Heat Capacity

380 J/kg·K0.09 BTU/lb·°F
377 J/kg·K0.09 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

17.8 µm/m·K9.9 µin/in·°F
18 µm/m·K10 µin/in·°F

Latent Heat of Fusion

200 J/g86 BTU/lb
205 J/g88.1 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

15 % IACS
17 % IACS

Electrical Resistivity

1.15×10⁻⁷ Ω·m4.53 µΩ·in
1.01×10⁻⁷ Ω·m3.98 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.3 V
-0.31 V

Corrosion Resistance

68 / 100
76 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

25 / 100
28 / 100

Weldability

45 / 100
70 / 100

Formability (cold)

90 / 100
82 / 100

Castability

30 / 100
—

Brazeability / Solderability

90 / 100
45 / 100

Polishability

75 / 100
70 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

68 MJ/kg29,235 BTU/lb
57 MJ/kg24,506 BTU/lb

Embodied Carbon (primary production)

4.3 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
350 L/kg41.9 gal/lb

Typical Recycled Content

40%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

38 kN·m/kg
51 kN·m/kg

Specific Stiffness (E / density)

12.4 MN·m/kg
14.3 MN·m/kg

Modulus of Resilience

89 kJ/m³
148 kJ/m³

Thermal Diffusivity

20.5 mm²/s
26.6 mm²/s

Thermal Shock Resistance Index

12
16

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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC51000C60800

Manufacturing and finishing

CapabilityC51000C60800
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$$ Specialty$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
Chrome PlatingYes—
ElectropolishingYes—
Nickel PlatingYes—
PaintingYes—
Tin PlatingYes—

They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C51000 vs C60800 — frequently asked

Is C60800 stronger than C51000?

Yes. C60800 has a typical yield strength of 186 MPa (27 ksi) against 140 MPa (20.3 ksi) for C51000 — about 33% more. Tensile strength is 415 MPa (60.2 ksi) vs 340 MPa (49.3 ksi).

Which is cheaper, C51000 or C60800?

C60800 is the lower-cost material: it sits in the high tier ($$$$) while C51000 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, C51000 or C60800?

C60800. Its weldability rates very good (70/100) against fair (45/100) for C51000.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C51000 and C60800 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.