PAU SANGUE (Pterocarpus vernalis)
Nombre comercial
Pau sangue
Nombre científico (con autor)
Pterocarpus vernalis Pittier
Familia
LEGUMINOSAE
Nombres Comunes
Bollo Blanco (Colombia); Grau (Colombia); Grau Blanco (Colombia); Sangre De Grado (Colombia); Sangregado (Colombia); Sabroso (Colombia); Lagunero Mejoro (Venezuela); Macunana (Venezuela); Sangregado (Venezuela); Tasajo (Venezuela); Sangre Drago (Venezuela); Moutochi (Guyana); Ibará (Argentina); Sangre De Drago (Colombia); Yaya Sangre; Sangrillo; Sangre De Drago (Venezuela); Pau Sangue (Brazil); Palo Sangre Negro; Palo De Pollo; Nogal Falso (Bolivia); Mututi; Mucunana; Lagunero; Huevos De Gato; Drago (Venezuela); Bebe; Angu; Sangre
Nombres científicos sinónimos (con autores)
Pterocarpus rupestris Pittier; Pterocarpus podocarpus S.F. Blake; Pterocarpus minimus R.S. Cowan; Pterocarpus heterophyllus Pittier; Pterocarpus acapulcensis Rose
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The tree attains a height of about 30 to 35 m, with diameters of 90 cm. The boles are straight, with commercial lengths of 10 to 20 m. It presents small or no buttresses.
Hábitat natural
Pterocarpus vernalis grows in a wide variety of habitats in the tropical American forests. It is found in primary and secondary forests.
Distribución natural
P. vernalis is reported from Southern Mexico to northern Argentina.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. I Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma in discontinuous tangential lines. Axial parenchyma storied. Prismatic crystals in chambered axial parenchyma cells and/or in fi Rays more than 10 per mm (abundant). Rays storied. Rays exclusively uniseriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
It has no discernible odor or taste.
Color
The heartwood and sapwood are reported to be indistinct. The wood is yellowish brown in color. Dark brown are reported in the heartwood.
Grano
The grain is straight to interlocked.
Veta
The texture is medium.
Brillo
The wood is commonly of medium luster.
Durabilidad Natural
It is generally very susceptible to attack by decay fungi.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
5
Dificultad para impregnar
Pterocarpus is very easy to treat using either open-tank or pressure vacuum systems.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.56
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.62
Contracción Tangencial Total (Saturado hasta anhidro) (%)
7.0
Contracción Radial Total (Saturado hasta anhidro) (%)
4.0
Defectos por secado
Ease of Drying: Drying is reported to be rapid. Drying Defects: Slight tendency to warping.
Calendario de Secado
JUNAC-C
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.8
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
942
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
128000
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
526
Cizallamiento radial CH12% (kgf/cm²)
119
Dureza Janka (lados) CH12% (kgf)
617
Dureza Janka (extremos) CH12% (kgf)
740
TRABAJABILIDAD
Aserrado
Cutting resistance is reported to be generally low.
Corte de chapa rotativa
This species is reported to convert readily into veneer for plywood.
Chapa tranchada
This species is reported to convert readily into veneer for plywood.
Maquinado general
Pterocarpus wood is reported to have a good behavior in all machining operations.
Cepillado
It is easy to plane to yield clean, smooth surfaces.
Lijado
The material is reported to respond very well to sanding.
Doblar al vapor
Steam-bending properties are reported to be good.
Facilidad para herramientas manuales
The wood responds well to hand tools.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, beams, joists, boards, frames, panelling, fittings, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, TOOLS, tool handles, PACKING, OTHER AND MUSICAL INSTRUMENTS, particleboard
VIVIENDA GENERAL
- 10 - Silica in Timbers
vigas
- 11 - Prospect: The wood database
Viguetas
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Tablas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Marcos
- 16 - Woods of the World
Paneles
- 18 - W3TROPICOS Missouri Botanical Garden
Accesorios de madera
- 19 - Silica in Timbers
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Gabinetes
- 24 - Empire Timbers
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
PALLETS_EMBALAJES
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Tablero de partículas
- 80 - Estudio Integral de la Madera para Construcción
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