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Brush 1915 UNS Number C19150

Additional Alloys

Brush 1915 UNS Number C19150

Brush 1915 by Materion Brush Performance Alloys is a heat-treatable leaded copper alloy engineered specifically for cold heading operations and automatic screw machine applications.

Advantages/benefits of Brush 1915

With a machnability index close to 70% that of free-cutting brass, Brush 1915 provides high strength, excellent cold headability, good machinabilty, close diameter control, microstructural consistency and an excellent surface finish.

Brush 1915 common uses and applications

The properties of Brush 1915 make it an ideal material for machined, formed or cold headed electrical contacts, connector pins and sockets, particularly for slotted cylindrical contacts for coaxial and circular connectors.

Chemical composition of Brush 1915

  • Nickel - 0.80 to 1.2 %
  • Lead - 0.5 to 1.0%
  • Phosphorous - 0.15 to 0.35%
  • Copper – balance

Physical properties of Brush 1915

  • Elastic Modulus - 18.0x106 psi (124 GPa)
  • Density - 0.320 lbs/in3 (8.86 g/cm3)
  • Poisson's Ratio - 0.3
  • Electrical Conductivity - 50% IACS (29 MS/m) minimum in HT temper
  • Thermal Conductivity - 120 BTU/ft hr °F (210 W/m °C)
  • Coefficient of Thermal Expansion = 9.8 ppm/°F (17.7 ppm/°C)
  • Specific Heat (Heat Capacity) - 0.09 BTU/lb °F at 70°F (375 J/kg/K at 20°C)
  • Metling Range - 1900 to 1930°F (1040 to 1050°C)

mechanical properites of Brush 1915

Mechanical properties vary by product form, size and temper.  Please see data sheet for values.

Brush 1915 available forms, sizes and tolerances 

Brush 1915 is available in wire and rod forms only, in diameters ranging from 0.030 to 0.625 inches (0.76 to 15.9 mm).  Diameter tolerances are closely held, typically within 1/2 of the allowable limits defined in ASTM B249 and ASTM B250.

Rod Tolerance

Wire Tolerance

Brush 1915 Applicable Specifications and standards 

Meets UNS C19150

 

Contact Materion Brush Performance Alloys

Download the Brush 1915 data sheet, or for more information, contact Materion Brush Performance Alloys today.

 

Rod Tolerance

 Diameter (inches)  Diameter
Tolerance
(inches)		 Out of Round
Tolerance (inches) 		    Diameter (mm) Diameter
Tolerance
(mm) 		  Out of Round
Tolerance (mm)
 Over Including     Over  Including
 0.0300  0.0800  ±0.0003  0.0003    0.76  2.0  ±0.008  0.008
 0.0800  0.1250  ±0.0004  0.0004    2.0  3.2  ±0.010  0.010
 0.1250  0.2500  ±0.0006  0.0004    3.2  6.4  ±0.015  0.010
 0.2500  0.3125  ±0.0007  0.0007    6.4  7.9  ±0.018  0.018
 0.3125  0.3750  ±0.001  0.001    7.9  9.5  ±0.025  0.025
 0.3750  0.500  ±0.002      9.5  12.0  ±0.05  
 0.500  1.00  ±0.003      12.0  25.0  ±0.08  
 1,00  2.00  ±0.004      25.0  50.0  ±0.10  
 2.00  3.00  ±0.2% of Diameter      50.0  75.0  ±0.2% of Diameter  

Additional tolerances are per ASTM B249.

Wire Tolerance

 Wire
Diameter (inches)		  Diameter
Tolerance (inches)		   Wire
Diameter (mm) 		 Diameter
Tolerance (mm) 
 Over  Including Cold Drawn  Annealed     Over Including   Cold Drawn Annealed 
 0.0300  0.0800  ±0.0003  ±0.001    0.8  1.5  ±0.01  ±0.03
 0.0800  0.1250  ±0.0004  ±0.002    1.5  2.0  ±0.01  ±0.03
 0.1250  0.2500  ±0.0006  ±0.002    2.0  3.8  ±0.02  ±0.05
 0.2500  0.3125  ±0.0007  ±0.002    3.8 12.0   ±0.03  ±0.05
 0.3125  0.4060  ±0.0010  ±0.002        
 0.4060  0.5000  ±0.0010  ±0.002        

Additional tolerances are per ASTM B250