Grade :

    CuZn32Pb2AsFeSi

    Number:

    CW709R

    Classification:

    Complex copper-zinc alloy

Fe

Si

Ni

Al

Cu

As

Pb

Sn

Others

-

0.1 - 0.2

0.45 - 0.8

max   0.3

max   0.05

64 - 66.5

0.03 - 0.08

1.5 - 2.2

max   0.3

total 0.2

Zn - remainder

Rm - Tensile strength (MPa) (R380)

380

Rm - Tensile strength (MPa) (R430)

430

Rp0.2 0.2% proof strength (MPa) (R380)

220

Rp0.2 0.2% proof strength (MPa) (R430)

280

A - Min. elongation at fracture (%) (R380)

20

A - Min. elongation at fracture (%) (R430)

15

  Brinell hardness   (HB):   (H110) (R380)

110 - 140

  Brinell hardness   (HB):   (H120)(R430)

120