Scientific Name:

Sterculia tragacantha or Eribroma oblonga

Other Name:

Family:

Countries of origin and local name

Ivory Coast: Bi, Azodo, Assasodou

Nigeria: Okoko, Orodo, Ebenebe

Cameroon: Bongele, Dototo, Lom

D.R. of the Congo: Bongo, Moan

Habitat

Afrormosia is a rare tree species found in West and Central Africa, including the countries of Ivory Coast, Nigeria, Ghana, Cameroon, and the Congo states. The tree grows primarily in groups.

Tree description

Afrormosia is a large tree reaching heights of 30-50 m (98-164 ft). The straight and cylindrical trunk is 60-160 cm (2-5 ft) in diameter, and is clear of branches for up to 30 m (98 ft). The scale-like bark is fibrous with strong red marks.

Wood description

The sapwood, about 3 cm (1.2 in) thick, is a lightly-colored mixture of white, green, and yellow. The core wood is greenish-brown with a silky luster and often displays greenish-red stripes. Pores may be filled with tannin, which can form calcium marks.

DURABILITY CLASS III
RAW DENSITY 0.70 - 0.80 g/cm3
BENDING STRENGTH 110 N/mm2
COMPRESSION strength 50 N/mm2
E-Module 13,600 N/mm2
Volume dwindle 16.6 %
Radial shrinkage 4.8 %
Tangential shrinkage 12.0 %

Property and application

Because of Eyong’s propensity to shrink, drying must be carefully carried out. Appropriate steam and hot water treatments can effectively combat the timber’s tendency to crack. From a mechanical perspective, Eyong is solid, flexible and pliable. It is a popular choice for solid wood furniture manufacturing and for plywood. Tests in Spain have shown that Eyong is especially suitable for fire protection doors.

How to use it

Very Good

Plywood, Blind veneer

Good

Furniture, Doors, Modeling

Usable

Not Good

Flooring, Walls, decking, Paneling, Intarsia works, Cabinetmaking, Rotary cut veneer, Flat sawn veneer, Musical instrument, Construction wood, Staircases, Ship, rail & truck building, Weapons industry, Window frames, Laboratory furniture & fittings

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