Ebène

1.001.10 (-9%)

In stock

Family: EBENACEAE
Scientific names: DIOSPYROS CRASSIFLORA / MESPILIFORMIS
Origin: CENTRAL AFRICA

WOOD DESCRIPTION

Reference color: black

Sapwood: very distinct
Grain: fine Grain
: straight or interlocked
Counter grain : light

Logs can have different types of defects, including fine pitting and heart rots.
The wood is uniform black to black brown.

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PHYSICAL AND MECHANICAL PROPERTIES

These properties can vary significantly depending on the origin and growing conditions of the wood.

  • Density *: 0.90
  • Monnin hardness *: 7.0
  • Coef. Volume shrinkage: 0.51%
  • Stability in service: not very stable
  • Total radial shrinkage: 7.0%
  • Fiber saturation point: 29%
  • Total tangential shrinkage: 11.0%

(*: 12% humidity)

Very variable properties depending on the species and the provenance; thus, the density can vary from 0.75 to 1.1.

NATURAL DURABILITY AND IMPREGNABILITY OF WOOD

  • Mushrooms: cl 1 – very durable
  • Insects of dry wood: durable; distinct sapwood (risk limited to sapwood)
  • Termites: class D
  • Impregnability: 4 – not impregnable
  • Biological risk class: 4 – in contact with soil or fresh water

SAWING AND MACHINING

  • Blunting effect: significant
  • Sawing toothing: stellate toothing
  • Machining tools: tungsten carbide

Powerful machines are required for machining due to the high hardness of the wood. Wood dust can cause dermatitis.

ASSEMBLY

  • Nailing – Screwing: good hold, pre-boring necessary
  • Gluing: correct

USES

A preliminary surface treatment with alcohol is recommended for polyester coatings and primer coats.

  • turned items
  • musical instruments
  • cabinetmaking
  • sculpture

Main known uses to be validated by implementation in compliance with the rules of the art. Important note: some uses are mentioned for information.

Source: CIRAD – ATIBT

REACTION TO FIRE

  • French conventional classification: thickness> 14 mm: M.3 (moderately flammable) thickness <14 mm: M.4 (easily flammable)
  • classification according to euroclasses: D s2 d0 This default classification concerns solid woods meeting the requirements of standard NF EN 14081-1 appendix C (May 2006), used in vertical walls. Namely structural timber, classified, with a minimum average density of 0.35 and a minimum thickness of 22 mm.
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1.001.10 (-9%)

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