|
|
| Common
Names: |
|
Bolivian
Rosewood
Caviuna
Jacaranda pardo
Pau Ferro
|
|
|
|
|
|
- Mechanical Values
| Category |
Green |
Dry |
Units |
| Weight |
|
53 |
lbs/cu.ft. |
| Density (air-dry) |
|
|
lbs/cu.ft. |
| Specific Gravity |
|
0.85 |
|
| Hardness |
|
|
lbs |
| Stiffness |
|
|
1000 psi |
| Bending Strength |
|
|
psi |
| Shearing Strength |
|
|
psi |
| Max. Crushing
Strength |
|
|
psi |
| Work to Maximum Load |
|
|
in-lbs/in3 |
| Radial Shrinkage
(G->OD) |
|
|
% |
| Tangential Shrink.
(G->OD) |
|
|
% |
| Volumetric Shrink
(G->OD) |
|
|
% |
Environmental Profile
The conservation status of this species within its natural growth range has not been officially assessed.
Distribution
Various species in the genus Machaerium are reported to be widely distributed throughout tropical America, but they are mainly found in Brazil. It is reported to reach its best development in the southeastern region of Brazil.
Tree Data
The tree is reported to be of medium size, and is seldom large.
Product Sources
It is currently unknown whether lumber or other timber products from this species are obtainable from environmentally responsible sources.
Heartwood Color
The heartwood is reported to be similar to Brazilian rosewood (Dalbergia nigra ), except that it has a lighter color that is between pink brown and violet brown.
Grain
Grain is straight and has been described as undulating. The timber is reported to be less figured than Brazilian rosewood.
Texture
Texture is reported to be coarse, and the wood tends to be fibrous.
Odor
There is no discernible odor or taste.
Ease of Drying
The timber is reported to air-season at a slow rate.
Drying Degrade
The timber is reported to be prone to check during drying.
Natural Durability
The heartwood is reported to be very resistant to attack by decay fungi.
Resistance to Impregnation
The timber is reported to respond poorly to preservative treatment.
Blunting Effect
Dulling of cutting edges is reported to be rather severe.
Planing
Jacaranda pardo is reported to be rather difficult to work with ordinary tools. It tends to dull cutting edges rapidly and severely, and requires a reduced cutting angle of 20 degrees in planing quartersawn material to prevent grain from tearing.
Molding
Quartersawn material is reported to mold better with sharp tools and a reduced cutting angle of 20 degrees.
Steam Bending
The timebr is reported to have moderate steam bending qualities.
Strength Properties
Strength properties of Jacaranda pardo are rated as high. It is a very heavy wood.
|
