CuZn35Ni3Mn2AlPb (CW710R)

 

The added alloy metals improve the mechanical properties compared with the simple brasses or with a similar copper content. The lead improves the workability. Used for the fasteners, the parts of valves, etc.

 

Chemical compound %

Agent
Cu
Al
Fe
Mn
Ni
Pb
Si
Sn
Zn
Other
Mass-volume g/cm3
Mini:

 58,0

0,3

-

1,5

2,0

0,2

-

-

Reste

-

8,3

Maxi:

60,0

1,3

0,5

2,5

3,0

0,8

0,1

0,5

-

0,3

 

Mechanical properties of bars for general usings (EN 12163) :

State
Implementation
Diameter or size/flats mm
Tensile strength Rm N/mm˛ min.
Conventional elastic limit at 0,2Rp0,2 N/mm²
Stretching
Hardness
from
more than
until
A100mm % min.
A11,3 % min.
A % min.
HB min.
HB max.
HV min.
HV max.

M

 

3

-

80

-

-

-

-

-

-

 -

-

-

 R490

 

5

 -

40

490

 (300)

-

15

20

 -

 -

 -

 -

H120

 

5

-

40

-

-

-

-

-

120

150

125

155

R550

 

5

-

14

550

(400)

-

8

10

-

-

-

-

H150

 

5

-

14

-

-

-

-

-

150

-

160

-

 

Mechanical properties of bars for die forging (EN 12165) :

State
Nominal size of the straight section
Hardness
Tensile strength

Rm

N/mm˛ approx.

Conventional elastic limit at 0,2 %

Rp0,2

N/mm˛ approx.

Stretching

 A%

approx.

Diameter mm

Size on flat mm

from
until and included
from
until and included
HB min.
HV min.

M

All sizes

 

 

  

 

 

H100

6

80

6

60

100

105

(440)

(180)

(10)

 

Mechanical properties of sections and rectangular bars (EN 12167):

State
Sizes
Tensile strength Rm N/mm˛ min.
Conventional elastic limit at 0,2Rp0,2 N/mm²
Stretching A %
Hardness
Section
Rectangular bars thickness mm
> at
< or =
HB min.
HV min

M

All

 All

 

 

 

 

 

R490

-

-

6

490

(320)

(8)

-

-

H130

-

-

6

-

-

-

130

135

R440

-

6

60

440

(200)

(12)

-

-

H110

-

6

60

-

-

-

110

115