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SIZE
RANGE : OD 4MMTO 100MM 0.2MM MIN. |
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TRADE
NAME : SVMC Albrass |
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| APPLICATION
: |
Power
Plants, Desalination Plants, Heat Exchanged
adaptors, Refineries, Offshore Oil Rigs,
Condensers, Ferrules, Evaporator, and
Distillers |
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CHARACTERISTIC
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| A
Copper Zinc Alloy containing tin and small amount
of Arsenic which is, added as an inhibitor against
dezincification. Inhibited Aluminum Brass resists
the action of high velocity salt and brackish water
and is commonly used for condenser tube. The outstanding
characteristics of Aluminum Brass are the high resistance
to impingement Attack Tubes of this alloy are recommended
For use in marine and land power stations where
cooling water velocities are high and where inhibited
admiralty brass has failed Impingement |
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Guide
to the selection of tube material: |
| ww |
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Sea
Water: -
a. Dissolved salts more than 2000 ppm
b. Suspended solids more than 30 ppm
c. H2C or Ammonia is less than 1 ppm
d. Permissible average velocity of water 2.0-2.5
miters/sec. |
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TEST:
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| ww |
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Drift
test, Flattening test, Mercurous nitrate test,
M.N test, Eddy current test as per specification. |
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| CHEMICAL
COMPOSITION OF BRASS |
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ALLOY
|
STD
APPLIED
|
ALLOY
DENOTATION
|
SYMBOL
|
CU
|
PB
|
FE
|
ZN
|
P
|
AL
|
SN
|
AS
|
TOTAL
IMPURITIES |
Svmc
Aluminium
Brass |
BS |
2871
PART3 |
CZ
- 110
|
76.0-78.0
|
0.07
|
0.06 |
REMAIN |
- |
1.8-2.3
|
- |
0.02-0.06
|
0.3 |
| ASTM |
B
- 111 |
C
68700
|
76.0-79.0
|
0.07
|
0.06 |
REMAIN |
- |
1.8-2.5
|
- |
0.02-0.06
|
- |
| DIN |
1785 |
CuZn20
AL2
|
76.0-79.0
|
0.07
|
0.07 |
REMAIN |
0.01 |
1.8-2.3
|
- |
0.02-0.035
|
0.1 |
| NFA |
51-102 |
CuZn
22 AL2
|
76.0-79.0
|
0.07
|
0.06 |
REMAIN |
- |
1.8-2.5
|
- |
0.02-0.06
|
0.3 |
| JIS |
H-
3300 |
C
6870
|
76.0-79.0
|
0.07
|
0.06 |
REMAIN |
- |
1.8-2.5
|
- |
0.02-0.06
|
- |
| JB |
1545 |
CuZn
21 AL2 AS
|
76.0-78.0
|
0.07
|
0.06 |
REMAIN |
- |
1.8-2.3
|
- |
0.02-0.06
|
0.3 |
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| PHYSICAL
COMPOSITION OF BRASS |
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| ALLOY |
STD
APPLIED
|
SYMBOL |
CONDITION |
YIELD,
STRENGTH N/mm2
|
TENSILE
N/mm2
|
ELONGATION
%
|
HARDNESS
HV 5
|
GRAIN
SIZE
Mm (75X) |
| Svmc
Aluminium Brass |
BS
|
CZ
- 110
|
M,
TA, O
|
- |
- |
- |
150MIN,
80-110, , 75 MAX
|
0.05
MAX. |
ASTM
|
C
68700
|
0 61
|
125-105
|
345
|
- |
- |
.010-.045 |
DIN
|
CuZn20
AL2
|
F
39, F 34
|
150-230,
120-180 |
390
MIN, 340MIN.
|
45MIN,
55MIN.
|
- |
- |
NFA
|
CuZn
22 AL2
|
- |
- |
- |
- |
80-130
|
.010-.045 |
JIS
|
C
6870
|
O
|
- |
373
|
40
|
- |
.010-.045 |
| IS |
CuZn
21 AL2AS
|
O,
TA, oD
|
400mpaMax,335mpa
Max,415mpaMax
|
- |
85
Max, 80- 110,130Min
|
- |
.010-.045 |
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| ADMIRALTY
BRASS TUBES
| ALUMINIUM
BRASS | 63/37
& 70/30 BRASS TUBES | WEIGHT
OF BRASS IN VARIOUS SIZES & GAUGES - EXTERNAL
DIAMETER | WEIGHT
OF BRASS RODS/BARS IN KILOGRAMS PER METER |
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