Lenga
Scientific name:
Nocthofagus pumilio Kras
Geographic origin:
South America
Sapwood: pink white.
- Heartwood: pink yellow.
- Fiber: straight.
- Grain: thin.
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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 820 kg/cm2.
- Elasticity module 98,000 kg/cm2.
- Resistance to compression 480 kg/cm2.
Mechanization
- Sawing process: easy and with no difficulties.
- Drying process: slow. Risk of crack formation.
- Planing process and other processes: no difficulties.
- Gluing process: easy.
- Nailing and screwing process: from low to regular difficulty.
- Finish: easy.
Physical properties
- Apparent density at 12% humidity 540 kg/m3 semi-light wood.
- Dimensional stability
- - Volumetric contraction coefficient 0.42 % stable wood.
- - Relation between contractions 2.1% tendency to deformity.
- Hardness (Chaláis-Meudon) 3.2 semi-hardwood.
Observations
- Igual que el cirerer, al que substituïx en nombroses aplicacions, té una marcada diferència de color entre la albura i el duramen
