21 Species Booklet 2004.pdf - Guyana Forestry Commission

LOCUST
Scientific name: Hymenaea courbaril
Family: Caesalpiniaceae
Standard name: Courbaril
Other names: Copalier, Algarrob, Gaupinal, Jatoba
Wood Appearance
The heartwood is light brown to brown often with dark streaks and a subdued golden glow. The
sapwood of whitish grey colour is sharply defined. Texture is medium to coarse with straight grain
straight. There is medium luster and distinct uniform vessel lines. The bole is 18-25m in length, with
diameter 50-120(-150) cm.
Physical and Mechanical Properties
Very hard and strong. Moderate shrinkage, relatively stable once dry. Good mechanical properties,
especially elasticity:
• Air dried density (12%) - 880kg/m 3
• Bending strength (at 12%) - 172N/mm 2
• Modulus of elasticity (at 12%) - 18500 N/mm 2
• Crushing strength (at 12%) - 84 N/mm 2
Natural Durability
Very resistant to decay.
Timber Processing
Drying - Dries readily with slight risk of distortion or checking.
Working - Moderately difficult to work but finishes smoothly. Planes and turns without difficulty.
Good bending to steaming process.
Assembly - Glues well, but difficult to nail. Fastenings are held well.
Finishing - Finishes smoothly and polishes and varnishes without difficulty.
Uses
A wood of decorative appearance suitable for use in the manufacture of high grade furniture, cabinet
work, decorative joinery and veneer. Also used for shipbuilding, general construction, and the
making of tool handles and croquet mallets.
Supplies
Occurs widely but not abundantly in the Guyana forests. Regular supplies in modest quantities are
available.
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