Birch
Scientific name:
Betula pendula Roth. <br />B. pubescens Ehrh
Geographic origin:
Europe
- Sapwood and Heartwood: from yellowish white to slightly orangey white
- Fiber: Straight, occasionally wavy
- Grain: Thin
- Defects: small knots, small rots
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Capacity of being impregnated
- Capable of being impregnated to medium capacity of being impregnated
Mechanical properties
- Resistance to static flexion 1,548 kg/cm2
- Elasticity module 170,000 kg/cm2
- Resistance to compression 526 kg/cm2
Mechanization
- Sawing process: Easy and with no difficulties
- Drying process: Easy and Fast, with nearly no defects.
- Planing process: Easy.
- Gluing process: Easy
- Nailing and screwing process: pre-drilling is recommended
- Finish: Irregular dyeing. No difficulties on varnish taking.
Physical properties
- Apparent density at 12% humidity 650 kg/m3 semi-heavy wood
- Dimensional stability
- Volumetric contraction coefficient 0.38 % stable wood
- Relation between contractions 1.4% no tendency to deformity
- Hardness (Chaláis-Meudon) 3.1 semi-hardwood
Observations
- Es tracta d'una fusta molt apreciada pel seu color clar
