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Afrika

Afzelia / Doussie

Tree Data
The tree is smaller than other Afzelias, and is sometimes of poorer stem form. It attains a height of up to 100 feet (30 m), but is usually 40 feet (12 m) in the drier regions within its range.

Boles are reported to seldom be longer than 30 feet (15 m).

 

Sapwood Color
The sapwood is pale straw or pale yellow to whitish in color, and is sharply demarcated from the heartwood. Sapwood averages about 1 to 2 inches (2.5 to 5 cm) in width.

Heartwood Color
The heartwood is light brown in color, turning reddish-brown upon exposure, and is sharply demarcated from the sapwood.

Grain
The grain is straight to moderately interlocked, or irregular.

Texture
The wood has a moderately coarse, even texture.

Luster
The wood is of medium luster.

Odor
Odor and taste are usually indistinct.

Movement in Service
The timber has good dimensional stability, and is reported to show only small movement after manufacture.

Natural Durability
The heartwood is very durable. it is moderately resistant to attack by termites, but is susceptible to attack by powder post beetles.

Resistance to Impregnation
The heartwood is extremely resistant to impregnation or preservative treatment. The sapwood is moderately treatable.

Effect on Textiles
The wood contains a yellow dye-stuff (afzelin) which can stain textile materials under moist conditions.

Toxic Constituents
Sawdust produced from machining operations has been reported to cause irritation in some individuals.

Veneering Qualities
The wood is reported to be unsuitable for plywood manufacture because it is very dense and difficult to glue.

Strength Properties
The species has very high bending strength, and is much stronger than Teak in the air-dry condition (about 12 percent moisture content). It has exceptionally high maximum crushing strength (compression parallel to grain) in the air-dry condition. It is hard - harder than Hard maple or Teak. It is quite resistant to denting. It is a very heavy wood. The species has very high density.

 

Category Green Dry Unit
Bending Strength 17195 psi
Impact Strength 31 inches
Stiffness 1915 1000 psi
Work to Maximum Load 11 in-lbs/in3
Hardness 1810 lbs
Shearing Strength 2120 psi
Specific Gravity 0.67 0.82
Weight 68 51 lbs/cu.ft.
Density (Air-dry) 51 lbs/cu.ft.

Crown-Wood

Crown-Wood is a division of Crown-Holdings bvba, a registered company in Belgium active in the import/export & trading of all kinds of Tropical & Exotic Hardwoods (from South-East Asia, West Africa and South-America). 

Crown-Holdings bvba

Crown-Holdings bvba has the following divisions:

Contact details

Crown-Wood
a division of Crown-Holdings bvba

Baillet Latourlei 98
2930 Brasschaat
Belgium

E-mail: info@crown-wood.be
Telephone: +32 3 480 10 14
Fax: +32 3 605 48 53