Khaya

  • Scientific name: Khaya spp
  • English: Acajú, Caju,Khaya, African mahogany
  • Center, west and east of Africa.

Description

&;8226; Sapwood: pink white.
&;8226; Heartwood: varies from pink brown to light red that darkens with the light effects.
&;8226; Fiber: straight, usually intertwined and of small to medium size.
&;8226; Grain: medium size.
&;8226; Characteristic defects: growth tensions, soft core.

Applications

&;8226; Interior and exterior furniture and cabinet work.
&;8226; Interior carpentry, doors, paneling, molding, baseboad, friezes.
&;8226; Exterior carpentry: windows, doors.
&;8226; Decorative panels and plywood board.

Capacity of being impregnated

&;8226; Sapwood: medium capacity of being impregnated.
&;8226; Heartwood: no capable of being impregnated.

Mechanization

&;8226; Sawing process: easy, although there is a risk of deformation due to growth tensions.
&;8226; Drying process: easy and fast. Low risk of deformation, with mainly intertwined wood.
&;8226; Planing process: risk of repelling with intertwined fiber pieces.
&;8226; Gluing process: no difficulties.
&;8226; Nailing and screwing process: easy.
&;8226; Finish: no difficulties.

Physical properties

&;8226; Apparent density at 12% humidity 510 kg/m3 semi-light.
&;8226; Dimensional stability
&;8226; Volumetric contraction coefficient 0.41 % stable wood.
&;8226; Relation between contractions 1.52% no tendency to deformity.
&;8226; Hardness (Chaláis-Meudon) 1.9 softwood.

Mechanical properties

&;8226; Resistance to static flexion 760 kg/cm2.
&;8226; Elasticity module 94,000 kg/cm2.
&;8226; Resistance to compression 460 kg/cm2.
&;8226; Resistance to parallel traction of fibers 600 kg/cm2.

Observations

Strong difference of colour between its very light sapwood and the dark heartwood.

Aviso

Aviso