The chemical composition for the copper-tin alloys cast as ingots

Alloy type

Chemical composition. %

new

old

Sn

Zn

Pb

Ni

Cu

Impurities. max

Zn

Pb

Sb

Fe

Al

S

Bi

Mg

As

Mn

Ni*)

P

Total

CuSn14T

Bz14T

13-15

-

-

-

Bal.

0.8

1

0.2

0.2

0.02

0.1

0.01

0.01

0.15

0.2

1

0.1

1.30 (excl. Ni. Pb)

CuSn12T

Bz12T

11-13

-

-

-

Bal.

0.8

1

0.1

0.2

0.02

0.1

0.01

0.01

0.15

0.2

-

0.1

1.30 (excl. Sb. Pb)

CuSn12Ni2T

-

11-13

-

-

1.5-2.0

Bal.

0.8

1

0.2

0.2

0.02

0.1

0.01

0.01

0.15

0.2

1

0.1

1.30 (excl. Ni. Pb)

CuSn10T

Bz10T

9-11

-

-

-

Bal.

0.8

1

0.1

0.2

0.02

0.1

0.01

0.01

0.15

0.2

1

0.1

1.30 (excl. Ni. Pb)

CuSn10Zn2T

Bz10ZnT

9-11

1-3

-

-

Bal.

-

1

0.3

0.3

0.02

-

-

-

-

-

-

-

1.30 (excl. Pb)

CuSn9Zn5T

Bz9ZnT

8-10

3-7

-

-

Bal.

-

2

0.3

0.3

0.02

0.1

0.01

0.01

0.15

0.2

2

0.1

1.0 (excl. Ni. Pb)

CuSn6Zn4Pb4T

Bz6ZnT

5-7

2.5-5.5

3-5

-

Bal.

-

-

0.3

0.4

0.05

0.1

0.01

0.01

0.15

0.2

2

0.1

1.30 (excl. Ni)

CuSn5Zn5Pb5T

Bz5ZnT

4-6

4.0-6.5

4-6

-

Bal.

-

-

0.3

0.4

0.05

0.1

0.01

0.01

0.15

0.2

2

0.1

1.30 (excl. Ni)

CuSn4Zn4Pb17T

Bz4ZnT

3.5-5.5

2.5-6.0

14-20

-

Bal.

-

-

0.3

0.4

0.05

0.1

0.01

0.01

0.15

0.2

2

0.1

1.30 (excl. Ni)

CuSn3Zn12Pb4T

Bz3ZnT

2-4

11-13

3-6

-

Bal.

-

-

0.3

0.4

0.05

0.1

0.01

0.01

0.15

0.2

2

0.1

1.30 (excl. Ni)