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ARARACANGA (Aspidosperma megalocarpon)
Nombre comercial
Araracanga
Nombre científico (con autor)
Aspidosperma megalocarpon Mull. Arg.
Familia
APOCYNACEAE
Nombres Comunes
Volador; Sibadanni; Piquia marfim; Pelmax; Ocre; Maparana; Malaria; Malady; Kromanti kopi; Jacamim; Huichichi; Gavetillo; Costillo; Copachi; Chicique; Chichique; Chichica; Chichi; Bois macaque; Bayalte; Ballester; Ararauba da terra firme; Alcarreto; Araracanga (Brazil); My Lady; Hielillo Blanco
Nombres científicos sinónimos (con autores)
Macaglia megalocarpa (Mull. Arg.) Kuntze; Aspidosperma matudae Lundell; Aspidosperma cruentum Woodson; Aspidosperma chiapense fo. tenax Matuda
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The size of the mature tree is reported to be small to medium, attaining heights up to 20 to 30 m, and diameters of about 40 to 60 cm. The boles are often straight and cylindrical, covered with a typically ridged bark. Aspidosperma species exudate a milk
Hábitat natural
Aspidosperma megalocarpon is a common canopy tree of the lowland seasonal rainforest, it prefers moist soils. The timber is exploited on a small scale.
Distribución natural
A. desmanthum is reported to occur from southern Mexico, through Central America, down to Colombia, it is also found in the Guyanas.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Vessels exclusively solitary (over 90%). Tyloses common. Intervessel pits small, 7 micras or less. Paratracheal axial parenchyma scanty and/or vasicentric. Fibers with distinctly bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
Odor and taste are indistinct.
Color
The sapwood is not clearly demarcated from the heartwood. The heartwood is bright orange pale brown to reddish brown, sometimes with rose veins.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
5
Grano
The grain is straight to interlocked.
Veta
The texture is medium and uniform.
Durabilidad Natural
The species is reported to have moderate natural resistance to decay.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
3
Dificultad para impregnar
The response to preservative treatment is reported to vary, but is generally poor.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.88
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
1.02
Contracción Tangencial Total (Saturado hasta anhidro) (%)
12.0
Contracción Radial Total (Saturado hasta anhidro) (%)
8.3
Defectos por secado
Ease of Drying: Drying is fairly easy; some difficulties could occur when drying too fast. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: The kiln schedule has been tested.
Calendario de Secado
US-T7-B3; UK-E
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.4
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
2054
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
274000
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
1020
Cizallamiento radial CH12% (kgf/cm²)
156
Dureza Janka (lados) CH12% (kgf)
1400
Dureza Janka (extremos) CH12% (kgf)
1508
TRABAJABILIDAD
Aserrado
It is reported to respond well but it requires care in cutting.
Corte de chapa rotativa
This timber is interesting for slicing.
Chapa tranchada
This timber is interesting for slicing.
Pérdida de filo_romado
Blunting effect is rated as moderate.
Cepillado
The material is reported to plane easily.
Moldurado
Molding is easy, giving smooth surfaces.
Escopleado, caja y espiga
The wood is normally very easy to mortise.
Clavado
Pre-boring is recommended in nailing.
Encolado
Gluing properties are reported to be satisfactory.
Lijado
Sanding properties are satisfactory.
Acabado
This species is reported to finish smoothly.
Sacar lustre
Polishing characteristics are reported to be excellent.
Facilidad para herramientas manuales
The wood is reported to work well with hand tools despite its hardness.
Usos Reportados
USOS FINALES (RESUMEN)
EXTERIOR GENERAL, crossties, HOUSING GENERAL, flooring, frames, FURNITURE AND CABINETS, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, port pillar
EXTERIOR GENERAL
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Durmientes
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
VIVIENDA GENERAL
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
Marcos
- 16 - Woods of the World
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Carrocería de camión
- 53 - Timbers of the New World
Pisos de vagones_contenedores
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCCIÓN NAVAL
- 55 - Tropical Timber Atlas of Latin America
Puertos_pilares
- 61 - Manual de Diseño para Maderas del Grupo Andino
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