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
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.
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
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
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
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