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WATTLE (Acacia leucophloea)
Nombre comercial
Wattle
Nombre científico (con autor)
Acacia leucophloea Willd.
Familia
LEGUMINOSAE
Nombres Comunes
A kawa (Vietnam); A bu (Vietnam); Phayamai (Thailand); Chalaep daeng (Thailand); Ta noung (Myanmar); Pilang (Indonesia); Forest siris (Australia)
Nombres científicos sinónimos (con autores)
Delapontea microphylla Gagnep; Delapontea ferox Gagnep; Acacia melanochaetes Zoll
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
It is a medium-sized to fairly large deciduous tree up to 35 m tall. The bole is up to 100 cm in diameter.
Hábitat natural
Acacia leucophloea is found in savanna or scrub vegetation, dry forests and teak forests, on well drained soils, between 50 to 750 m of altitude.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Tangential diameter of vessel lumina 200 micras or more (large). Colored deposits in heartwood vessels. Vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and sh Axial parenchyma in marginal or in seemingly marginal bands. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma aliform. Axial parenchyma confluent. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 4 to 10 rays per mm (medium). Larger rays more than 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The heartwood is pale olive brown to pink darkening to reddish-brown or dark red with darker streaks, sharply differentiated from the pale yellowish sapwood.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
4
Grano
The grain varies from straight to slightly interlocked.
Veta
The texture is fine to medium and even.
Brillo
This species is moderate in luster.
Durabilidad Natural
It is durable when exposed to weather, but not in contact with ground. It is resistant to dry wood termites.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
4
Internal growth stresses
Growth stresses are reported in this species.
Dificultad para impregnar
The heartwood is moderately resistant to preservative treatment.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.7660571561
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.87
Contracción Tangencial Total (Saturado hasta anhidro) (%)
8.1
Contracción Radial Total (Saturado hasta anhidro) (%)
3.8
Defectos por secado
Ease of Drying: The wood dries rapidly without much degrade. Boards of 15 mm thick take about 2.5 months to air dry. Drying Defects: It is prone to staining during seasoning. Kiln Schedules: The wood can be dried moderately fast, just like other durian timber, using schedule D (Malaysia), with only slight twisting. It is recommended to air dry sawn timber for at least 2 weeks before kiln drying.
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
2.1
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
876
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
107607
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
535
Cizallamiento radial CH12% (kgf/cm²)
94
TRABAJABILIDAD
Aserrado
Sawing of this wood is reported to be fair to difficult.
Maquinado general
It is easy to machine.
Cepillado
The wood planes easily to a smooth, lustrous surface using cutting angles of 15 to 25 degrees.
Torneado
30
Taladrado
Boring is reported to be easy.
Clavado
It is easy to nail.
Acabado
Wood of this species is easy to finish.
Sacar lustre
It is easy to polish.
Facilidad para herramientas manuales
It is easy to work with hand tools.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, flooring, FURNITURE AND CABINETS, TURNING, TOOLS, tool handles, agricultural tools
VIVIENDA GENERAL
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Torneado
- 30 - Embassy of Honduras in Japan
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Mangos agrícolas
- 44 - Atlas of Peruvian Woods
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