WHITE MERANTI (Shorea bracteolata)
Nom commercial
White meranti
Nom scientifique (avec auteur)
Shorea bracteolata Dyer
Famille
Dipterocarpaceae
Noms communs (pays)
Meranti pa`ang (Malaysia); Melapi pa`ang (Sabah); Badau betul (Sarawak); Damar kedontang (Indonesia); Bunyau (Indonesia); Meranti lapis (Malaysia); Melapi (Sabah); Lun puteh (Sarawak); Damar putih (Indonesia); White meranti (Sarawak); White meranti (United States of America); Meranti temak (Malaysia); Pendan (Thailand); Pa nong (Thailand); Meranti paang (Malaysia); White meranti (United Kingdom); Meranti putih (Indonesia); Pa-nong (Thailand); Kabak kau (Thailand); Sual (Thailand); Meranti jerit (Malaysia); Vit meranti (Sweden); Lumbor (Cambodia); Weisses meranti (Germany); Witte meranti (Netherlands); Meranti bianco (Italy); Meranri blanco (Spain); Meranri blanco (France); Manggasinoro (Philippines); Makai (India); Bobo (Vietnam)
DESCRIPTION DE L'ARBRE
Description botanique
It is a medium-sized to very large tree up to 60 m tall with bole branchless for 23 to 30 m and up to 165 cm in diameter. The buttresses are up to 3 m high.
Habitat naturel
Shorea bracteolata is found mostly on well-drained lowland coastal hills, up to 600 m of altitude. This tree is heavily exploited for white meranti timber, especially in Peninsular Malaysia.
Usages non ligneux
Occasional brittle heart is reported for this species.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Vestured pits. Vessels per mm2 5 to 20. Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Intervessel pits small Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma storied. Axial parenchyma bands more than 3 cells wide. 4 to 10 rays per mm (medium). Silica bodies in the ray cells. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Fibers with simple to minutely bordered pits.
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Vue macroscopique du bois (plan radiale)
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Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Odeur
Green timber has a characteristic sappy smell, dry material has no taste or odor.
Teinte
The sapwood is white-yellowish. The heartwood is yellowish white when fresh, darkening to yellow-brown on drying.
Index de Teinte (1 = Noir, 7 = Jaune clair)
5
Grain
It is frequently interlocked.
Texture
This species is reported to have a medium to coarse texture.
Durabilité naturelle
It is moderately durable to non durable. The sapwood is rapidly affected by blue stain and it is also prone to insect attack.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
6
Teneur en silice
Silica Content: Stock contains deposits of silica which have a severe blunting effect.
Résistance à l'imprégnation
The sapwood is moderately permeable to preservatives, but the heartwood is untreatable.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.59
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.65
Retrait tangentiel total (saturé à 0%TH) (%)
4.7
Retrait radial total (saturé à 0%TH) (%)
3.2
Calendrier de séchage en séchoir recommandé
UK-F; JP-1; US-T6-D4
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.5
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
917
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
197686
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
560
OUVRABILITÉ
Sciage
The response of this wood in sawing is easy to fair. Stellite tips are recommended.
Coupe de placage de déroulage
This species is reported to have good characteristics for lamination.
Placage tranche
This species is reported to have good characteristics for lamination.
Effet d'émoussement
Silica deposits may cause severe blunting of the cutting elements.
Rabotage
Planing is reported to be easy.
Perçage
Boring is reported to be easy.
Clouage
Risk of splitting, pre-boring recommended.
Collage
It glues well but some difficulties are reported with alkaline glues.
Finissage
Resin causes problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, flooring, frames, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING, CONTAINERS, cooperage, truck bodies, truck flooring, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, paper
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Planchers
- 14 - Handbook of Hardwoods
Cadres
- 16 - Woods of the World
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
CONTENANTS
- 50 - Properties of imported tropical woods
Tonnellerie
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
Carros_camion
- 53 - Timbers of the New World
Wagons
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Papier
- 82 - Compilation of Data on the Mechanical Properties of Foreign woods (Part 2) Central and South America.
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