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Master Bond adhesives
Mueller Ecostream™ GreenDrop™ C27451 DZR Lead Free Plumbing Brass
Categories: Metal; Nonferrous Metal; Copper Alloy; Brass

Material Notes: Mueller Brass Company has developed a dezincification resistant version of its GreenDrop™ C27450 Lead Free Brass Alloy. This new alloy, C27451, is specifically designed for machined or forged parts and components requiring compliance to both lead free and dezincification resistance criteria adopted by potable water and PEX standards and applications.
Compliant • Competitive • Compatable
Although specifically developed for parts requiring compliance to dezincification resistance standards; Mueller Brass Company’s C27451 alloy still retains the same inherent advantages over other lead free alloys offered by other manufacturers. With the customer as its core focus, Mueller Brass Company developed C27451 to not only aide manufacturers with their compliance needs, but also develop an alloy that would help manufacturers control their material costs and retain their competitive advantage. Since no expensive additives or potential contaminants like silicon or bismuth are added, C27451 DZR Lead Free Brass is completely recyclable and compatible with all EcoStream™ and conventional leaded alloys widely used today. Since the need for segregation, the cleaning out of machines or the rejection of contaminated scrap is virtually eliminated; C27451 offers the manufacturer the additional benefits of manufacturing efficiency and productivity.


  • Good machinability
  • Excellent forgeability
  • Excellent brazing and plating
  • Excellent ability to Thread Roll
  • Dezincification Resistant


  • Potable water components, fixtures and applications
  • PEX plumbing applications and systems
  • Forged products requiring lead free and/or dezincification compliance

Information Provided by Mueller Industries Inc.

Key Words: UNS C27451
Available Properties
  • Hardness, Rockwell B
  • Tensile Strength at Break
  • Tensile Strength, Yield
  • Elongation at Break
  • Machinability
  • Forgeability
  • Copper, Cu
  • Iron, Fe
  • Lead, Pb
  • Other
  • Phosphorus, P
  • Zinc, Zn, Remainder
Property Data

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Manufacturer Notes:
Mueller Industries Inc.

Category Notes

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