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Brass

Yellow brass is one of many brass alloy metals consisting mainly of copper and a lower percentage of zinc. Many parts can be stamped from brass as it performs well for cold forming. It is also easily hot worked and hot forged for parts such as propane tank valves. In the automobile industry, connectors, antennas, radiators and many other items are all made of yellow brass, and most of our keys are made of it. Its unique acoustic properties make it excellent for musical instruments.

SUMMARY

  • Name: Brass
  • Standard State: Solid
  • Density: 8.47 g/cm3
  • Color: Bright gold appearance
  • Ferromagnetism: Not Ferromagnetic
  • Malleability: Higher than bronze and zinc
  • Acoustics: Appropriate for musical instruments
  • Melting Point: Relatively low 900-940 (ºC) (904)
  • Casting: Easy

PHYSICAL PROPERTIES

CHEMICAL COMPOSITION

  • Iron: .05%
  • Lead: .15%
  • Zinc: 31-36%
  • Copper: 65%

MECHANICAL PROPERTIES

  • Hardness, Rockwell F: 58
  • Hardness, HR30T: 15
  • Tensile Strength: 315 MPa
  • Yield Strength: 97 MPa
  • Elongation at Break: 65%
  • Shear Strength: 220 MPa

THERMAL PROPERTIES

  • Thermal Expansion Co-Efficient (@20-300 ºC): 20.3 µm/m ºC
  • Thermal Conductivity Efficient (@20 ºC): 116.0 W/mK

Machinability

  • Machinability: Yellow Brass has a machinability rate of 30

HOT WORKING

  • Hot Working: Yellow Brass can be easily forged and hot worked

COLD WORKING

  • Cold Working: Yellow Brass performs very well for cold working
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“Design engineers George LaFleur (left) and Richard Felberg (center) working with owner, Al Menzies (right) on a proprietary design in 1974”

About Standard Die

Standard Die is a precision metal stamper specializing in small parts made from thin grade specialty metals. Mastering refractory metals like tantalum and titanium and common materials like copper and steel, we pride ourselves in delivering the highest quality product with the best customer service in the industry.
Our metal stampings are of the highest quality, and our deep drawn and forming capabilities are among the best in the industry. We specialize in drawing small cups, cans, cones, crucibles and more, yet we are fully capable of forming brackets, rivets, clips, terminals and more.

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