CuZn36Sn1Pb (CW712R)

 

The addition of tin improves the corrosion resistance, especially in the sea water. The lead improves the workability.
Chemical compound %
Agent
Cu
Al
Fe
Mn
Ni
Pb
Si
Sn
Zn
Other
Mass-volume g/cm3
Mini:

 61,0

-

-

-

-

0,2

-

1,0

Reste

-

8,3
Maxi:

63,0

-

0,1

-

0,2

0,6

-

1,5

-

0,2

 

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

-

-

-

-

-

-

 -

-

-

 R340

 

5

 -

 80

340

 (170)

-

25

30

 -

 -

 -

 -

H080

 

5

-

80

-

-

-

-

-

80

120

85

125

R400

 

5

-

50

400

(210)

-

16

20

-

-

-

-

H105

 

5

-

50

-

-

-

-

-

105

145

110

150

R460

 

5

-

30

460

(340)

-

10

12

-

-

-

-

H135

 

5

-

30

-

-

-

-

-

135

-

140

-

 

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

 

 

  

 

 

H080

6

80

6

60

80

85

(350)

(160)

(15)

 

Mechanical properties of wires (EN 12166) :
State
Diameter
Tensile strength Rm N/mm˛
Conventional elastic limit at 0,2Rp0,2 N/mm²
Stretching
Hardness HV
from
more than
until
min.
Max.
A100mm % min.
A11,3 % min.
A % min.
min.
max.

M

All sizes

-

-

-

-

-

-

-

-

R350

0,1

-

20,0

350

450

-

15

18

20

-

-

H100

0,1

-

20,0

-

-

-

-

-

-

100

130

R400

1,5

-

8,0

400

-

-

10

13

-

-

-

H120

1,5

-

8,0

-

-

-

-

-

-

120

-

 

Mechanical properties of sections and rectangular bars (EN 12167):
State
Sizes
Tensile strength Rm N/mm² 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

 

 

 

 

 

R460

-

-

6

460

(300)

(8)

-

-

H120

-

-

6

-

-

-

120

125

R410

-

6

60

410

(200)

(10)

-

-

H100

-

6

60

-

-

-

100

105