CW721R

CW721R

  • CW721R
  • CuZn40Mn1Pb1AlFeSn
  • C46400
  • CZ114
Chemical composition (%) DIN EN 12167

 

Cu

Zn

Al

Pb

Fe

Ni

Sn

Mn

Others

min.

57

Rem.

 0,3

 0,8

0,2

-

-

-

-

max.

59

-

1.3

1,6

1,2

0,3

0,3

-

0,3

CuZn40Mn1Pb1AlFeSn is an excellent choice where strength and corrosion resisantace are requiered. The aluminium and tin content gives the CW721R a bright finish and is the main reason for the increase in corrosion resistance. CW721R is sometimes referred to as Manganese Bronze or High Tensile Brass.
Top Applications and best use would be for Arquitectural applications, Decorative Profiles, Fiitings, Trims & Flooring Profiles, Valves and Standard Sections.
Generally supplied as extruded / as manufactured.

Physical properties

At room temperature

Density

8,36 g/cm3

 

21 % I.A.C.S

Heat conductivity

88 W//(m*K)

Heat capacity

380 J/(kg*K)

Coefficient of thermal expansion

20 10-6/K

Young’s modulus

96,5 GPA

Melting range

875-1075 ºC

 

Shapping

Machinability 

Very Good

Cold working

Poor

Hot working

Very good

Hot working temperature

700-750ºC

 

Heat Treatment

Soft annealing 

425-600ºC

Stress relieving

225-350ºC

 

Surface treatment

Mechanical polishing

Very Good

Electrolytic polishing 

Poor

 

PRODUCTS

Alloys