Standard

BS 2871 Part

ASTM B-135

NFA 51 102

IS 407

JIS H3300

AS 1572

Symbol

CZ 126

C 26000

CuZn 30

CuZn 30As

C2600

259

Cu

69.0 – 71.0

68.5 – 71.5

68.5 – 71.5

68.5 – 71.5

68.5 – 71.5

69.0 – 71.0

Sn

-

-

-

-

-

-

Al

-

-

-

-

-

-

Pb

0.07

0.07

0.07

0.07

0.07

0.05

Ni

-

-

-

-

-

-

Fe

0.06

0.05

0.06

0.06

0.05

0.05

Zn

Remainder

Remainder

Remainder

Remainder

Remainder

Remainder

As

0.02 – 0.06

-

0.02 – 0.06

-

-

0.02 – 0.06

Total impurities Max.

  0.30

  -

0.30

0.30

-

-

0.1

Condition

M

TA

O

H58

H80

-

O

TA

HD

O

OH

1/2H

H

O

1/4H

1/2H

H

F28

F35

F42

O

TA

HD

Yield

Strength

N/ mm2

-

-

-

-

-

-

180 Max

200 Max

Tensile

N / mm2

370 Min

-

285Mps/Min

300Mps/Min

275 Min.

275 Min.

373 Min.

280-350 Mps

-

320 Mps Min

280-350

350-420

420 Min

375 Max

340 Min.

385 Min.

Elongation

%

-

-

-

-

-

-

45 Min

45 Min

20 Min

40 Min

35 Min

-

Hardness HV 5

150 Min

85-110

75 Min

-

80-105

75 Max

80-110

135 Min

80 Max

80-105

95-130

150 Min.

80 Max

80-105

130 Min

Grain size

Mm (75X)

0.05 Max

-

.010 - .045

-

025-060

035 Min.

065 Max

035 Min.

A Copper Zinc Alloy containing tin and small amount of Arsenic.This is added as an inhibitor against dezincification. The alloy exhibits a good combinations of strength and ductility and is commonly selected whenever excellent cold working properties and relatively low cost are desirable. Severe environment must be considered to predict corrosion behavior. The alloy is often used for variety of deep drawn components.