BRASS TUBES
Seamless brass tubes are produced in a variety of
shapes and sizes. Being an alloy of copper and zinc this
material has excellent cold forming, corrosion resistance
properties. In some alloys, 63/37 brass CZ108
material is preferred in addition to its cold forming and
machining properties, it is extremely suitable for polishing
and decorative applications. All tubes produced can be
supplied hard, annealed, or drawn to temper, polished,
lacquered, plated, cut to length and made as per customer's
requirement.
SHAPES
Standard shapes typically round, square, hexagonal,
flat-oval and rectangular can be produced on existing tooling.
Special sections, typically elliptical, octagonal,
semicircular and triangular require special tooling.
PHYSICAL
PROPERTIES
| ·
Density |
gr/cm3 |
= 8.44 |
| ·
Electrical conductivity |
m/Q mm2 |
= 15,5(IACS%=25) |
| ·
Thermal conductivity |
W/mk |
= 121 |
| ·
Thermal expansion coefficient |
10-6/k |
= 20.2 |
| ·
Modulus of elasticity |
kN/mm2 |
= 110 |
| ·
Resistivity |
µQ.m |
= 0.065 |
MECHANICAL PROPERTIES
|
Elongation
A5%
|
Tensile
strength N/mm2
|
Temper H.B.
|
Grain size
mm
|
| Annealed
|
>50
|
|
60 (50-60)
|
0.035-0.045
|
| Light annealed
|
>50
|
290.370
|
70 (70-90)
|
0.015-0.035
|
| Half hard
|
12.35
|
370-540
|
115 (115-135)
|
|
| Hard
|
>6*
|
>540
|
135 (135-145)
|
|
*Thickness up to 2 mm.
SPECIFICATIONS
|
ASTM B135 |
alloy |
C 27200
|
|
BS 2871 |
alloy |
CZ 108 |
-
Brass tubes are available in straight lengths at random
about 4m or according to customer's needs.
-
Packing: In bundles of 50 Kgs up to 100 Kgs in wooden
cases.
-
capability to produce brass tubes in square and oval
shape.
-
Brass tubes are delivered normalized on customers request
only.
Sizes
Produced:
Diam.
mm
|
T h i c k n e s s
mm
|
|
0.4-0.75
|
0.75-1.0
|
1.0-1.5
|
1.5-2.0
|
2.0-3.0
|
3.0-4.0
|
4.0-5.0
|
|
5-7
|
|
|
|
|
|
|
|
|
7-15
|
|
|
|
|
|
|
|
|
15-30
|
|
|
|
|
|
|
|
|
30-50
|
|
|
|
|
|
|
|
|
50-60
|
|
|
|
|
|
|
|
|
60-90
|
|
|
|
|
|
|
|
ALLOYS
AND APPLICATIONS:
| Material |
Alloy |
Nominal Chemical Composition% |
Density |
Properties & Characteristics |
Typical applications |
| Brass |
CuZn37 |
Cu: 63
Zn: 37
|
8.43 |
Alloy for cold and hot working |
Radio aerials, musical instruments,
rivets, pointers, shaft mechanisms, lighter bodies,
fountain pen bodies, Bourdon springs |
PHYSICAL AND MECHANICAL PROPERTIES
Mate-
rial
|
Tensile
strength (N/mm2)
|
Elongation
%
|
Vickers
hardness
|
Modulus
of
elasticity under tension N/mm2
|
|
Ann-
ealed
|
Cold
worked
|
Ann-
ealed
|
Cold
worked
|
Ann-
ealed
|
Cold
worked
|
Measured
in annealed condition and at a temperature of 20° C
|
|
Half-
hard
|
Hard
|
Half-
hard
|
Hard
|
Half-
hard
|
Hard
|
|
Brass
|
320-
380
|
380-
450
|
540-
600
|
30-50
|
15-30
|
5-15
|
55-
75
|
75-
129
|
130-
200
|
110000
|
|
