Brazilian Softwood
The pine wood is generally utilized for construction. It is internationally known as slash pine, southern pine and southern yellow pine and scientifically known as “Elliottii Pine” and "Taeda Pine". It is classified as a softwood, pertaining to the coniferous group.
Originally from North America, the pine wood was introduced to Brazil around 1970 due to its high reforestation. These trees are located in various parts of the country though are primarily located in the southern and southeast regions.
On behalf of its rapid growth rates and its non-necessity of nutritionally rich soil, the pine wood is easily manageable, making it one of the most utilized for construction and other areas.
Even though it is a vulnerable species with several natural predators, it possesses numerous utilities. Its permeability facilitates in its preservation and its workable material permits its use in various forms: broomsticks, toothpicks, brushes, sports articles, toys and several others.
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TECHNICAL INFORMATIONS
Scientific name: Pinus elliottii Engelm, Pinaceae.
Note: reforestation wood.
Other known names: slash pine, southern pine, southern yellow pine.
Characteristics: heartwood and sapwood indistinct in color, yellowish-white, moderately bright color; low density; soft to cut; straight grain; fine texture.
Durability: susceptible to fungal attack.
Treatability: is easy to treat.
Workability: easy to work with. It is easy to deploy, flatten, unfold, sand, turn, drill, fix, paste and has a good finish.
Drying: easy to dry.
PHYSICAL PROPERTIES
Bulk Density ():
• Apparent to 15% humidity (ap, 15): 480 kg / m³
• Basic (básica): 400 kg / m³
Contraction:
• Radial: 3.4%
• Tangential: 6.3%
• Volumetric: 10.5%
MECHANICAL PROPERTIES
Flexion:
• Resistance (fM):
Green Wood: 48.0 MPa
Wood at 15% moisture content: 69.6 MPa
• Proportionality limit - green wood: 19.7 MPa
• Modulus of elasticity - Green wood: 6463 MPa
Compression parallel to the fibers:
• Resistance (FC0):
Green Wood: 18.5 MPa
Wood at 15% moisture content: 31.5 MPa
• Humidity influence coefficient: 6.7%
• Proportionality limit - green wood: 13.7 MPa
• Modulus of elasticity - Green wood: 8846 MPa
Other properties:
• Resistance in impact bending - Wood at 15% (shock): 14.5
• Shearing - Green Wood: 5.8 MPa
• Janka hardness - Green wood: 1932 N
• Normal traction of the fibers - green wood: 3.0 MPa
• Splitting - Green Wood: 0.4 MPa
USES
Construction:
• Internal structure:
lath
secondary parts of structures
• Internal general utility:
cords
molds
baseboards
lining
wainscoting
• Temporary use:
formwork for concrete
props
scaffoldings
Furniture:
• General Utility:
standard furniture
internal parts of furniture including those decorative
Other uses:
broomsticks
toothpicks
offset plates
decorative veneer
sporting goods and toys
packaging
spools and reels
paintbrushes
IPT - Instituto de Pesquisas Tecnológicas do Estado de SP.