Bubinga

Scientific name: Guibourtia spp

Geographic origin: Africa.

Description

  • Sapwood: reddish white.
  • Heartwood: reddish grey to red.
  • Fiber: straight, slightly intertwined.
  • Grain: thin.

Capacity of being impregnated

  • Sapwood: capable of being impregnated.
  • Heartwood: no capable of being impregnated.

Mechanization

  • Sawing process: high power is required but with no other difficulties.
  • Drying process: slow, high risk of crack formation.
  • Planing process: difficult due to hardness, although risk of repelling only appears on pieces of intertwined fibers.
  • Gluing process: no difficulties.
  • Nailing and screwing process: pre-drilling is required due to its hardness.
  • Finish: no difficulties.

Physical properties

  • Apparent density at 12% humidity 910 kg/m3 very heavy wood.
  • Dimensional stability
  • - Volumetric contraction coefficient 0.47 % nervous wood.
  • - Relation between contractions 1.62% no tendency to deformity.
  • Hardness (Chaláis-Meudon) 8.4 very hard wood.

Bubinga

Mechanical properties

  • Resistance to static flexion 1,560 kg/cm2.
  • Elasticity module 171,000 kg/cm2.
  • Resistance to compression 720 kg/cm2.

Bubinga

Observations

Bubinga