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SA (Parinari insularum)
Trade Name
Sa
Scientific Name
Parinari insularum A.Gray
Family
Chrysobalanaceae
Common Names
Sa (Fiji)
Description Of The Tree
Botanical Description
A common large tree. Bole length averages 12m,maximum 20m.
Natural Habitat
On river flats, coastal ridges.
Natural Distribution
A NATIVE OF Fiji and some Pacific islands. Fiji, Pacific islands.
Non Timber Uses
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.
Wood Identification
Anatomic Description Of Wood
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).
Availability
Cites Status
Unrestricted
General Wood Description
Color
Heartwood is pink to red-brown and is difficult to distinguish from the sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
3
Grain
Grain is usually straight.
Texture
Texture is coarse but uniform, with rather prominent vessel lines.
Natural Durability
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.
Natural durability index (1= Very high durability, 7=Vey low durability)
3
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.65
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.80
Total shrinkage Tangential (Saturated to 0%MC) (%)
6.1
Total shrinkage Radial (Saturated to 0%MC) (%)
3.0
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.0
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1100
Stiffness (MOE) 12%MC (kgf/cm²)
160000
Compression parallel to fiber 12%MC (kgf/cm²)
610
Workability
Sawing
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.
Rotary Veneer Cutting
Not assessed
Sliced Veneer
Not assessed
Blunting Effect
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.
Nailing
Pre-boring necessary in nailing.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, flooring, NAVAL CONSTRUCTION, boat hulls, boat deck, port storage
Flooring
- 14 - Handbook of Hardwoods
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boat Hulls
- 57 - Estadísticas de Aprovechamiento, Exportación y comercialización Nacional de Productos Forestales
Boat Decking
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port Storage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
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