CuZn40Mn1Pb1 (CW720R)

 

Excellente seizing resistance. Used in contact with the cast iron. Used for the manufacturing of architectural sections. Oxidation with an attractive chocolate colour.

 

Chemical compound %

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

57,0

-

-

0,5

-

1,0

-

-

Reste

-

8,3

Maxi:

59,0

0,2

0,3

1,5

0,6

2,0

0,1

0,3

-

0,3

 

Mechanical properties of bars for screw cutting (EN 12164) :

State
Nominal size of the straight section
Tensile strength Rm N/mm˛ min.
Conventional elastic limit at 0,2Rp0,2 N/mm²
Stretching
Hardness

HB ou HV

approx

Diameter mm

Size on flat mm

from
more than
until and included
from
more than
until and included
A100mm % min.
A11,3 % min.
A % min.

M

2

-

80

4

-

60

 

 

 

 

 

 

R390

10

-

80

10

-

60

390

(200)

-

-

20

(110)

R440

6

-

50

5

-

40

440

(250)

-

15

18

(120)

R490

2

-

20

4

-

16

490

(350)

6

8

10

(140)

R560

2

-

4

-

-

-

560

(500)

-

-

-

(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

 

 

  

 

 

H080

6

80

6

60

80

85

(350)

(160)

(15)

 

Mechanical properties of cored bars for screw cutting (EN 12168) :

State
Nominal thickness of the walls mm.
Hardness
Tensile strength
Conventional elastic limit at 0,2%
Stretching
HB
HV
Rm N/mm² approx.
Rp0,2 N/mm² approx.
A % approx.
until and included
more than
min.
max.
min.
max.
M
Toutes
Brut de fabrication
H125
10
-
125
175
135
185
(440)
(250)
(18)
H110
-
10
110
160
120
170
(390)
(200)
(20)

 

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

-

-

-

-

-

-

-

-

R430

1,5

-

8,0

430

530

-

10

12

-

-

-

H115

1,5

-

8,0

-

-

-

-

-

-

115

145

R500

1,5

-

8,0

500

600

-

5

7

-

-

-

H145

1,5

-

8,0

-

-

-

-

-

-

145

175

R570

1,5

-

8,0

570

-

-

-

-

-

-

-

H170

1,5

-

8,0

-

-

-

-

-

-

170

-

 

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

 

 

 

 

 

R470

-

-

6

470

(320)

(8)

-

-

H125

-

-

6

-

-

-

125

130

R420

-

6

60

420

(190)

(12)

-

-

H105

-

6

60

-

-

-

105

110