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|
| Common
Names: |
|
Acajou
de Cuba
Acajou de St. Domingue
Aguano
Caoba
Caoba de Santo Domingo
Caoba dominicana
Caobilla
Chiculte
Cobano |
Cuban
mahogany
Dominican mahogany
Gateado
Jamaica mahogany
Madiera
Mahog
Mahogany
Mongo |
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|
- Mechanical Values
| Category |
Green |
Dry |
Units |
| Weight |
|
40 |
lbs/cu.ft. |
| Density
(air-dry) |
|
40 |
lbs/cu.ft. |
| Specific
Gravity |
0.52 |
0.68 |
|
| Hardness |
|
|
|
| Stiffness |
1224 |
|
1000
psi |
| Bending
Strength |
10260 |
13680 |
psi |
| Shearing
Strength |
|
|
|
| Max.
Crushing Strength |
4830 |
6432 |
psi |
| Work to
Maximum Load |
|
|
|
| Radial
Shrinkage (G->OD) |
|
3 |
% |
| Tangential
Shrink. (G->OD) |
|
8 |
% |
| Volumetric
Shrink (G->OD) |
|
11 |
% |
Environmental Profile
The environmental profile of this species within its
natural geographical range has not been officially
assessed.
Distribution
The species is reported to be grown mainly in
continental tropical America, from southern Mexico to
southern Brazil and Paraguay.
Product Sources
Some material from this species is reported to be
available from environmentally responsible or
sustainably managed sources.
Tree Data
Mature Sickingia trees are reported to grow to heights
of about 60 feet (18 m), with a trunk diameter of about
20 inches (50 cm).
Sapwood Color
The sapwood may be uniformly red, pink, or violet rose,
but it is frequently variegated. Other sources describe
the sapwood as rather pale, with only a hint of pink.
The color usually fades to yellowish brown with age.
Heartwood Color
The heartwood, which is reported to be often poorly
developed, is rather dark brown in color, and is usually
streaked with pink and orange. The combination of colors
is reported to produce a striking swirl pattern when the
wood is examined on the endgrain. There are reports of
wide color variation between boards which makes matching
rather difficult and time consuming.
Grain
The grain is typically straight and irregular.
Texture
The texture is rather fine and uniform.
Luster
The wood has medium to low luster.
Odor
Seasoned wood has no characteristic odor, but it has a
slightly bitter taste.
Movement in Service
Movement in service is rated as small.
T/R Ratio
2.67
This indicator is more meaningful if it is used together
with other drying information and actual shrinkage data
in the tangential and radial directions. (Refer to the
Numerical Values window).
Natural Durability
The material is reported to be moderately resistant to
attack by decay fungi.
Resistance to Impregnation
Sickingia timbers are reported to be highly permeable to
preservatives.
Cutting Resistance
Cutting resistance is reported to be rather low.
Planing
Sickingia timbers are reported to plane readily to yield
clean surfaces.
Turning
Turning operations are reported to be easy, and turned
surfaces are generally clean.
Moulding
The material responds readily to machine tools to yield
generally clean surfaces in moulding operations.
Boring
Boring properties are reported to be good, and bored
surfaces are typically smooth.
Routing & Recessing
The timber routs rather easily, with good results.
Mortising
Mortising qualities are rated as good, and mortising
operations are generally easy.
Carving
The wood carves rather easily with ordinary tools.
Sanding
Sanding properties are reported to be good.
Polishing
The wood polishes well.
Response to Hand Tools
Response to hand tools is reported to be good.
Strength Properties
The species has high bending strength in the air-dry
condition (about 12 percent moisture content). It
compares favorably with Teak, which also has high
bending strength. Its strength in compression parallel
to grain is medium, but ower than that of Teak. It is a
heavy wood. The wood is high in density.
Comments
Waste factor is reported to be potentially high because
of the difficulty in matching boards that usually vary
widely in color. Fine checks and worm holes are also
reported to be present. The wood and bark of Sickingia
trees yield a red dye that is reported to have
commercial applications.
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