English Oak

  • Quercus robur L; Q. petreae (Matts) Liebl
  • English: Pedunculate Oak, English oak
  • Europe, Asia Minor and North Africa.

Description

&;8226; Sapwood: light yelllow.
&;8226; Heartwood: varies from yellowish brown to brown.
&;8226; Fiber: straight.
&;8226; Grain: medium size.
&;8226; Characteristic defects: small knots.

Applications

&;8226; Interior and exterior furniture.
&;8226; Hollow carpentry and paneling, interior and exterior: Doors, windows, frames, platform, parquet flooring, friezes, molding, stairs.
&;8226; Traditional carpentry.
&;8226; Decorative panels.
&;8226; Laminate boards.
&;8226; Cooperage.

Capacity of being impregnated

&;8226; Sapwood: capable of being impregnated.
&;8226; Heartwood: no capable of being impregnated.

Mechanization

&;8226; Sawing process: no difficulties, excepting hardness.
&;8226; Drying process: slow. Risk of collapse and crack formation.
&;8226; Planing process: those ones are characteristics of its hardness.
&;8226; Gluing process: difficulties can arise from the use of alkaline glues and acid adhesives.
&;8226; Nailing and screwing process: easy, excepting its hardness.
&;8226; Finish: risk of reacting against acid products.

Physical properties

&;8226; Apparent density at 12% humidity 710 kg/m3 semi-heavy wood.
&;8226; Dimensional stability
- Volumetric contraction coefficient 0.48 % nervous wood.
- Relation between contractions 1.85% medium tendency to deformity.
&;8226; Hardness (Chaláis-Meudon) 5.8 hardwood .

Mechanical properties

&;8226; Resistance to static flexion 1,070 kg/cm2.
&;8226; Elasticity module 115,000 kg/cm2.
&;8226; Resistance to compression 580 kg/cm2.
&;8226; Resistance to parallel traction 1.070 kg/cm2 .


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