Southern yellow pine

  • Pinus taeda L. ; P. elliotis Engelm; P. echinata Mill; P. palustris Mill.
  • English: Southern yellow pine; Melis pine; P. movila; Tea pine
  • Southeastern United States.

Description

Sapwood: yellowish white colour.
Heartwood: reddish brown.
Fiber: straight.
Grain: medium size.
Characteristic defects: knots, resin bags, resin impregnations and young style wood.

Applications

Country and young style interior furniture.
Hollow carpentry and paneling, interior and semi-exterior: doors, windows, friezes.
Carpentry.
Panels and plywood boards .

Capacity of being impregnated

Sapwood: medium to low capacity of being impregnated.
Heartwood: no capable of being impregnated.

Mechanization

Sawing process: easy, except in those cases of resin's excess.
Drying process: easy and fast. Low risk of deformations and crack formation. Resin exudations.
Planing process: easy. Risk of weakening due to the presence of resin.
Gluing process: difficulties can arise due to the presence of resin.
Nailing and screwing process: Pre-drilling is required.
Finish: difficulties can arise due to the presence of resin. A blending agent should be applied in order to homogenize wood.

Physical properties

Apparent density at 12% humidity 450 kg/m3 semi-light wood.
Dimensional stability
- Volumetric contraction coefficient 0.41 % stable wood.
- Relation between contractions 1.6% no tendency to deformity.
Hardness (Chaláis-Meudon) 2.4 semi-softwood.

Mechanical properties

Resistance to static flexion 975 kg/cm2.
Elasticity module 130,000 kg/cm2.
Resistance to compression 492 kg/cm2.

Observations

It can present large areas of resin, resin impregnations.


Aviso

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