SA (Parinari insularum)
Nom commercial
Sa
Nom scientifique (avec auteur)
Parinari insularum A.Gray
Famille
Chrysobalanaceae
Noms communs (pays)
Sa (Fiji)
DESCRIPTION DE L'ARBRE
Description botanique
A common large tree. Bole length averages 12m,maximum 20m.
Habitat naturel
On river flats, coastal ridges.
Répartition naturelle
A NATIVE OF Fiji and some Pacific islands. Fiji, Pacific islands.
Usages non ligneux
It is a species which has yet to find its place in local timber utilization. Used for marine structure in the round, and for heavy flooring.
IDENTIFICATION DU BOIS
Description anatomique du bois
Vessels per mm2 less than 6 (rare). Tangential diameter of vessel lumina 200 micras or more (large). Vessels exclusively solitary (over 90%). Occasionally vessels in diagonal and/or radial pattern. Axial parenchyma in continuous tangential lines (included in reticulate and scalariform). Intercellular canals of traumatic origin (gum, resin).
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
Heartwood is pink to red-brown and is difficult to distinguish from the sapwood.
Index de Teinte (1 = Noir, 7 = Jaune clair)
3
Grain
Grain is usually straight.
Texture
Texture is coarse but uniform, with rather prominent vessel lines.
Durabilité naturelle
Sapwood is immune or rarely susceptible to Lyctus attack. Heartwood is perishable, being rated adequately durable only for hazard 1 end uses. Timber out of ground contact, continuous protected from the weather.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
3
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.65
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.80
Retrait tangentiel total (saturé à 0%TH) (%)
6.1
Retrait radial total (saturé à 0%TH) (%)
3.0
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
2.0
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
1100
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
160000
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
610
OUVRABILITÉ
Sciage
In green condition, with sharp tools the timber works easily, with some stringiness only sawn faces. When dry conventional blades can be blunt after only one pass, feed effect is excessive and some charring of timber faces may occur.
Coupe de placage de déroulage
Not assessed
Placage tranche
Not assessed
Effet d'émoussement
Sa has an extremely severe blunting action on saw teeth and cutters, and the use of tungsten carbide or hard alloy tips on tools is recommended.
Clouage
Pre-boring necessary in nailing.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, flooring, NAVAL CONSTRUCTION, boat hulls, boat deck, port storage
Planchers
- 14 - Handbook of Hardwoods
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Navires_coques
- 57 - Estadísticas de Aprovechamiento, Exportación y comercialización Nacional de Productos Forestales
Navires_ponts
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port entreposage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
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