Tigerwood
Curupau, Curupay
Anadenanthera colubrina
DISTRIBUTION AREA
Curupay is found in forests ranging from humid subtropical to dry
temperate forests*. Departments of Santa Cruz, Beni, Cochabamba,
Chuquisaca, Tarija and La Paz
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TREE DESCRIPTION
Tree Top
Open and sparsed, medium size, green yellowish foliage, composite
and alternate leaves
Trunk
Straight. It reaches commercial heights up to 30* m
Bark
Grayish color, coarse texture, fissured and cracked.
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GENERAL CHARACTERISTICS
Sapwood Color
Pale pink
Odor
Indistinct
Luster
Medium to bright
Striped
Tenuous
Hearthwood Color
Darkish Brown
Taste
Distinctive and astringent
Grain
interlocked
Texture
Medium to Fine
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PHYSICAL PROPERTIES
Moisture Content (Green Lumber)
40 %
Basic Density
0,85 g/cm3
Density
(12% MOISTURE CONTENT) 1,03 g/cm3
Radisal Shrinkage
4,2 %
Tangential Shrinkage
8,4 %
Volumetric Shrinkage
12,7 %
Rate T/R
2
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MECHANICAL RESISTANCE
Modulus of Elasticity
192 1000 Kg/cm2
Modulus of Rupture
1672 Kg/cm2
Compression Parallel tp Grain
839 kg/cm2
Quartered Sawed
163 Kg/cm2
Lateral Hardness
1990 Kg
Impact Bending
6,43 Kg-m
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TECHNICAL CONDITIONS FOR PROCESSING
Machining
Good planing when cut with and angle of 15° . Regular moulding
and boring*, excellent sanding; good turning and finishing*. High
blunting effect*
Preservation.
Impermeable
Natural Durability
Very durable, even in contact with soil
Drying
Air drying time is rather quickly*, with tendency to twist and
crack*. Kiln schedule T8 – B3 and T5 – B1 (USA)*
End Users
Heavy construction, Doors and windows frames, Garden furniture, Decking, Decorative veneer, Turnery, Sleepers, Flooring, Stairways,
Wood carvings, Truck beds