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Rulon Bearings

Nickel silver 55-18, UNS C77000, H04 Temper flat products
Categories: Metal; Nonferrous Metal; Copper Alloy
Material Notes: Excellent corrosion resistance. Fabricated by blanking, forming and bending, and shearing.

Applications: optical goods, springs and resistance wire.

Test specimen: flat products - 1mm thickness.
Key Words: NS107, ISO CuNi18Zn27, CEN CW410J
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Physical PropertiesMetricEnglishComments
Density 8.70 g/cc0.314 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 91
@Thickness 1.00 mm		91
@Thickness 0.0394 in		Flat products
Hardness, Rockwell 30T 77
@Thickness 1.00 mm		77
@Thickness 0.0394 in		Flat products
Tensile Strength, Ultimate 690 MPa
@Thickness 1.00 mm		100000 psi
@Thickness 0.0394 in		Flat products
Tensile Strength, Yield 585 MPa
@Strain 0.5 %		84800 psi
@Strain 0.5 %		Flat products, 1 mm thick
Elongation at Break 3.0 %
@Thickness 1.00 mm		3.0 %
@Thickness 0.0394 in		in 50 mm, Flat products
Modulus of Elasticity 125 GPa18100 ksi
Poissons Ratio 0.330.33calculated
Machinability 30 %30 %UNS C36000 (free-cutting brass) = 100%
Shear Modulus 47.0 GPa6820 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000314 ohm-cm0.0000314 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 16.7 µm/m-°C
@Temperature 20.0 - 300 °C		9.28 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.380 J/g-°C0.0908 BTU/lb-°F
Thermal Conductivity 29.0 W/m-K
@Temperature 20.0 °C		201 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Melting Point <= 1055 °C<= 1931 °F
Liquidus 1055 °C1931 °F
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 600 - 825 °C1110 - 1520 °F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 53.5 - 56.5 %53.5 - 56.5 %
Iron, Fe <= 0.25 %<= 0.25 %
Lead, Pb <= 0.10 %<= 0.10 %
Manganese, Mn <= 0.50 %<= 0.50 %
Nickel, Ni 16.5 - 19.5 %16.5 - 19.5 %
Other, total <= 0.50 %<= 0.50 %
Zinc, Zn 27 %27 %

References for this datasheet.

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