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UNS C66200 Nickel Brass

C66200 brass is a brass formulated for primary forming into wrought products. It has a moderately high melting temperature among wrought brasses. In addition, it has a moderately high thermal conductivity and a moderately high base cost.

The properties of C66200 brass include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare C66200 brass to: wrought brasses (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

110 GPa 16 x 106 psi

Elongation at Break

8.0 to 15 %

Poisson's Ratio


Shear Modulus

42 GPa 6.2 x 106 psi

Shear Strength

270 to 300 MPa 40 to 44 x 103 psi

Tensile Strength: Ultimate (UTS)

450 to 520 MPa 65 to 75 x 103 psi

Tensile Strength: Yield (Proof)

410 to 480 MPa 60 to 70 x 103 psi

Thermal Properties

Latent Heat of Fusion

200 J/g

Maximum Temperature: Mechanical

180 °C 360 °F

Melting Completion (Liquidus)

1070 °C 1950 °F

Melting Onset (Solidus)

1030 °C 1880 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

150 W/m-K 87 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

35 % IACS

Electrical Conductivity: Equal Weight (Specific)

36 % IACS

Otherwise Unclassified Properties

Base Metal Price

29 % relative


8.7 g/cm3 540 lb/ft3

Embodied Carbon

2.7 kg CO2/kg material

Embodied Energy

43 MJ/kg 19 x 103 BTU/lb

Embodied Water

320 L/kg 38 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

40 to 66 MJ/m3

Resilience: Unit (Modulus of Resilience)

760 to 1030 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

14 to 17 points

Strength to Weight: Bending

15 to 16 points

Thermal Diffusivity

45 mm2/s

Thermal Shock Resistance

16 to 18 points

Alloy Composition

Among wrought copper alloys, the composition of C66200 brass is notable for including phosphorus (P) and tin (Sn). Phosphorus is used as an alloy deoxidizer, and to reduce vulnerability to dezincification. Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media.

Copper (Cu)Cu 86.6 to 91
Zinc (Zn)Zn 6.5 to 12.9
Nickel (Ni)Ni 0.3 to 1.0
Tin (Sn)Sn 0.2 to 0.7
Phosphorus (P)P 0.050 to 0.2
Iron (Fe)Fe 0 to 0.050
Lead (Pb)Pb 0 to 0.050
Residualsres. 0 to 0.5

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys