Ayous or Samba
Scientific name:
Triplochiton scleroxylon K. Schum
Geographic origin:
West and central Africa.
- Sapwood and heartwood: from white to light yellowish white.
- Fiber: straight, occasionally slightly intertwined.
- Grain: medium size to rough .
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Capacity of being impregnated
- Low capacity of being impregnated.
Mechanical properties
- Resistance to static flexion 620 kg/cm2.
- Elasticity module 59,500 kg/cm2.
- Resistance to compression 285 kg/cm2.
- Resistance to parallel traction 480 kg/cm2 .
Mechanization
- Sawing process: no difficulties.
- Drying process: fast and easy. Very low risk of deformation and crack formation.
- Planing process: no difficulties.
- Gluing process: no difficulties
- Nailing and screwing process: no difficulties.
- Finish: no difficulties.
Physical properties
- Apparent density at 12% humidity 380 kg/m3 light wood.
- Dimensional stability
- - Volumetric contraction coefficient 0.33 % highly stable wood.
- - Relation between contractions 1.73% no tendency to deformity.
- &;8226; Hardness (Chaláis-Meudon) 1.2 softwood.
Observations
Tot i que és la mateixa espècie botànica, es comercialitza amb dos noms:
- SAMBA (Costa d'Ivori): pot tenir taca mineral i fusta blavosa – Al sector de la motllura la solen utilitzar quan aquesta va recoberta de paper o xapa i/o si no va lacada o envernissada en el color natural ja que en envernissar s'apreciarien aquestes taques, per això cal tenyir-la.
- AYOUS (Camerun): Fusta més seleccionada per color, sol ser més blanca.
