10000200 Datasheet, PDF (137/164 Pages) List of Unclassifed Manufacturers – Let Rose+Bopla be your partner for standard or customized enclosures.

Specifications
Aluminum
ALUMINUM
CASTING METHODS
LIMITATIONS
ROSE₊BOPLA COPPER
FREE ALUMINUM
ALUMINUM
Rose₊Bopla uses three methods to produce their die cast aluminum watertight enclosures:
Die Casting, Chill Casting, and Sand Casting.
Like all products, Rose₊Bopla’s cast aluminum enclosures do have limitations. Rose₊Bopla cannot change the size of any of
these boxes dimensionally. Rose₊Bopla’s die cast boxes have depth limitations. Most designs are somewhat shallow.
Rose₊Bopla cannot increase depth. If depth is a problem, use Rose₊Bopla’s Build-A-Box^® enclosures which are made from
aluminum extrusion that can be cut to any depth required. If you cannot find the size you need, please call the factory. We can
do a custom size for your application. Tooling costs and minimum order may apply.
Rose₊Bopla uses AL Si 12 alloy in its cast aluminum housings. The term “Copper Free” is used to describe aluminum alloys
which contain less then 0.4% copper. Rose₊Bopla’s copper content is .10% for Die Castings and .05% for Chill Castings and
Sand Castings. It is the reduction in the copper content which increases the natural corrosion resistant properties of aluminum.
Copper Free aluminum is particularly resistant to salt atmospheres, sulphur gases and ammonium nitrate. Above a level of
0.4% copper, the range of corrosion due to galvanic action within the structure of the metal increases rapidly.
Rose₊Bopla’s aluminum alloys are highly superior to most ferrous materials. For military applications we irridite these
enclosures to Mil Spec C-5541, Class 1A or Class 3. Rose₊Bopla’s “Copper Free” aluminum products provide optimum
protection against galvanic corrosion.
Mechanical, Electrical, and
Thermal Properties
Yield
Tensile Strength
Ductile Yield
Brinnel Hardness
Density
Castability
Polishability
Machinability
Weldability
Resistance
Thermal Conductivity
Heat Resistance
Cold Resistance
Pressure
Die-Cast
130
240
1
60
2.65
Very Good
Good
Good
Limited
18-27
130-160
200
-100
Chill
Cast
80
170
6
55
2.65
Excellent
Adequate
Good
Excellent
18-27
140-170
200
-100
Sand
Cast
70
150
5
45
2.65
Excellent
Adequate
Good
Excellent
18-27
140-170
200
-100
Extrusion
160
215
12
70
2.7
-
Excellent
Excellent
Excellent
28-34
190-210
200
-100
Unit Of
Measurement
N/mm²
N/mm²
%
HB
g/cm³
m/⍀mm²
W/mK
°C
°C
For Secondary Services, Product Support, or To Order, Call 1-301-696-9800
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