Iroko
Scientific name:
Clorophora excelsa Benth.&Hooff.; C. regia A. Chev
Geographic origin:
Africa.
- Sapwood: yellowish white colour.
- Heartwood: yellowish brown that changes into reddish grey with the lights effects.
- Fiber: straight, usually slightly intertwined.
- Grain: medium size to rough.
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Capacity of being impregnated
- Sapwood: capable of being impregnated.
- Heartwood: no capable of being impregnated.
Mechanical properties
- Resistance to static flexion 955 kg/cm2.
- Elasticity module 105,000 kg/cm2.
- Resistance to compression 540 kg/cm2.
- Resistance to parallel traction 800 kg/cm2.
Mechanization
- Sawing process: no difficulties except certain abrasivity due to the chalky deposits.
- Drying process: medium to high speed. Little risk of deformation and crack formation.
- Planing process: generally easy in exception of its abrasivity and the risk of repelling when it has intertwined fibers.
- Gluing process: difficulties with the casein glues.
- Nailing and screwing process: no difficulties.
- Finish: It has tannins that can inhibit oxidant varnishes (such as poliurethan and others) ,drying process.
Physical properties
- Apparent density at 12% humidity 650 kg/m3 semi-heavy wood.
- Dimensional stability
- - Volumetric contraction coefficientm 0.36 % stable wood.
- - Relation between contractions 1.57% no tendency to deformity.
- Hardness (Chaláis-Meudon) 3.9 semi-hardwood.
Observations
- L'albura NO es pot utilitzar
- En algunes zones, i de forma errònia, en diuen Teka.
- En serrar-lo, presenta coloracions diverses que s'igualen posteriorment
- Té característiques similars a la de la fusta de Teca, per això se'l coneix com la Teca Africana. No obstant, és una mica més lleugera i menys greixosa.
- Actualment, és la nostra fusta més venuda i de la que tenim més estoc.
