Standard

BS 2871 Part 3

ASTM B-111

DIN 1785

NFA 51 102

JIS H3300

IS 1545

Symbol

CN 111

C 44300

CuZn28 Sa 1

CuZn 29

Sa 1

C4430

CuZn 29 SN 1 As

Cu

70.0 – 73.0

70.0 – 73.0

70.0 – 72.5

70.0 – 73.0

70.0 – 73.0

70.0 – 73.0

Sn

1.0 – 1.5

0.9 – 1.2

0.9 – 1.2

0.9 – 1.2

1.0 – 1.5

Pb

0.07

0.07

0.07

0.07

0.07

0.07

Ni

-

-

0.1

-

-

-

Fe

0.06

0.06

0.07

0.06

0.06

0.06

Zn

Remainder

Remainder

Remainder

Remainder

Remainder

Remainder

As

0.02 – 0.06

0.02 – 0.06

0.02 – 0.035

0.02 – 0.06

0.02 – 0.06

0.02 – 0.06

P

-

-

0.1

-

-

-

Total

Impurities

Max.

0.30

-

0.1

0.30

-

0.30

Condition

M

TA

O

O61

F36

F32

-

O

O

TA

D

Yield

Strength

N/ mm2

-

-

-

105

140-220

100-170

-

-

-

-

-

Tensile

N / mm2

-

-

-

310

360 Min

320 Min

-

314 Min.

375 mps Max

340 mps Min.

385 mps Min.

Elongation

%

-

-

-

45 Min

55 Min

-

30 Min

-

Hardness HV 5

150 Min

80-105

75 Max

-

-

80-120

-

80 Max

80-105

130 Min

Grain size

Mm (75X)

0.05 Max

.010 - .045

-

.010 - .045

.010 - .045

.010 - .045

A Copper Zinc Alloy containing tin and small amount of arsenic which is added as an inhibitor against dezincification. The pressure of Tin imparts to the alloy good corrosion resistance in a moderately polluted river water and clean sea water, either stagnant or slow moving (up to about 2 mtrs/sec.) . The most common and wrought form of tube is tube for heat exchange equipment.

Clear, river, Lake or canal Water. 

a) Dissolved salts more than from 2000 ppm . 
b ) Suspended solids more than 25 ppm . 
c) H2S or Ammonia is less than 1 ppm . 
d) Choloride less than 20 ppm 
e) For temperature more than 200*** C and less than 450**** C 
Permissible average velocity of water 2.0 – 2.5 meters/sec.