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Copper Alloy C51900 vs C62200

Copper Alloy · grade comparison

Copper Alloy C51900 and C62200 are both copper alloy grades. C51900 is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 330 MPa (47.9 ksi) for C62200, about 36% more. C62200 is harder — 170 HB against 155 HB for C51900 — which matters for wear surfaces and threads. C62200 is lighter (7.53 g/cm³ vs 8.8 g/cm³ for C51900) and C62200 runs hotter in service (300°C vs 200°C continuous). On the shop floor, C62200 welds better (good vs fair), C51900 forms better (good vs fair), and C62200 sits in a lower cost tier (high, $$$$) than C51900 (specialty, $$$$$).

C51900Choose it when strength drives the design.

C62200Choose it when surface hardness matters, or when weight is the constraint.

C51900 vs C62200: properties

C51900C62200

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

115 GPa16.7 Msi
117 GPa17 Msi

Shear Modulus

43 GPa6.2 Msi
44 GPa6.4 Msi

Bulk Modulus

120 GPa17.4 Msi
108 GPa15.7 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

520 MPa75.4 ksi
655 MPa95 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
330 MPa47.9 ksi

Reduction in Area

35%
25%

Compressive Strength

450 MPa65.3 ksi
—

Shear Strength

340 MPa49.3 ksi
415 MPa60.2 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
250 MPa36.3 ksi

Hardness, Brinell

155 HB
170 HB

Hardness, Rockwell B

78 HRB
90 HRB

Hardness, Vickers

165 HV
178 HV

Charpy V-Notch Impact (RT)

—
15 J11.1 ft·lbf

Same in both: Elongation at Break 20%

Physical

Density and transition temperatures.

Density

8.8 g/cm³0.32 lb/in³
7.53 g/cm³0.27 lb/in³

Melting Point (Solidus)

910°C1,670 °F
1,027°C1,881 °F

Liquidus Temperature

1,040°C1,904 °F
1,046°C1,915 °F

Thermal

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

Thermal Conductivity

67 W/m·K38.7 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

18.5 µm/m·K10.3 µin/in·°F
16.2 µm/m·K9 µin/in·°F

Latent Heat of Fusion

175 J/g75.2 BTU/lb
215 J/g92.4 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
300°C572 °F

Min Service Temperature

-200°C-328 °F
-100°C-148 °F

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

15 % IACS
7 % IACS

Electrical Resistivity

1.15×10⁻⁷ Ω·m4.53 µΩ·in
2.46×10⁻⁷ Ω·m9.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.31 V

Corrosion Resistance

70 / 100
72 / 100

Manufacturability

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

Machinability

25 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

45 / 100
65 / 100

Formability (cold)

55 / 100
35 / 100

Brazeability / Solderability

90 / 100
35 / 100

Polishability

80 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

62 MJ/kg26,655 BTU/lb
57 MJ/kg24,506 BTU/lb

Embodied Carbon (primary production)

4.2 kg CO₂/kg
3.9 kg CO₂/kg

Typical Recycled Content

40%
35%

Same in both: Embodied Water 320 L/kg38.3 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

59 kN·m/kg
87 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
15.5 MN·m/kg

Modulus of Resilience

880 kJ/m³
465 kJ/m³

Thermal Diffusivity

20.2 mm²/s
15.9 mm²/s

Same in both: Thermal Shock Resistance Index 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 scaleC51900C62200

Manufacturing and finishing

CapabilityC51900C62200
CNC machiningYes—
Sheet metalYes—
Default condition——
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.

C51900 vs C62200 — frequently asked

Is C51900 stronger than C62200?

Yes. C51900 has a typical yield strength of 450 MPa (65.3 ksi) against 330 MPa (47.9 ksi) for C62200 — about 36% more. Tensile strength is 520 MPa (75.4 ksi) vs 655 MPa (95 ksi).

Which is cheaper, C51900 or C62200?

C62200 is the lower-cost material: it sits in the high tier ($$$$) while C51900 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, C51900 or C62200?

C62200, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for C51900; for welding the order is C62200 first (good, 65/100) then C51900 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C51900 and C62200 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.