Merbau
Scientific name:
Intsia spp
Geographic origin:
Southeast Asia and Oceania
- Sapwood: light yellow with greenish light shades
- Heartwood: orange brown when it is fresh wood that varies from light to dark bronze colour with the lights effects.
- Fiber: Straight. Slightly intertwined fibers are very frequent..
- Grain: medium size to rough
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Capacity of being impregnated
- Sapwood: Capable of being impregnated
- Heartwood: No capable of being impregnated
Mechanical properties
- Resistance to static flexion 1,350 kg/cm2
- Elasticity module 154,000 kg/cm2
- Resistance to compression 670 kg/cm2
Mechanization
- Sawing process: the hardness and high silica contents wear away tools and so makes sawing process difficult. In addition to that, oils can also produce irritation.
- Drying process: From low to very low speed. Little risk of deformation and crack formation.
- Planing process: Appart from hadness and silica difficulties, risk of repelling is very frequent due to the intertwined fibers.
- Gluing process: No difficulties arise excepting on very oily surfaces. In these cases, previous cleaning can be required.
- Nailing and screwing process: Pre-drilling is required
- Finish: No difficulties
Physical properties
- Apparent density at 12% humidity
- 810 kg/m3 heavy wood
- Dimensional stability
- - Volumetric contraction coefficient 0.38 % stable wood.
- - Relation between contractions 1,639 no tendency to deformity
- Hardness (Chaláis-Meudon) 6.4 hardwood
Observations
- En l'actualitat la seva importació està limitada a fusta amb algun tipus d'elaboració, no simplement raspallada
