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Brazilian Walnut

Tabebuia impetiginosa (Mart.) Standl. 
BIGNONIACEAE 

Comercial Name : Ipe - Rondonia 
Other Names : Ipe - Amarelo, Ipe-Roxo, Ipe-Una, Pau-D’Arco, Piuva, 
Piuva-Amarela 
Foreign Name : 
Lapacho (Central America, South America) 
Ocurrence : 
Brasil - CE, GO, MG/SP, PR 
General Charcteristics : 
Color : dark yellow chestnut 
Direction : right Texture : fine 
Taste : indistinct Smell : indistinct 
 Density at 15% m.c = 960 Kg/m3 

Natural Durability : 
Durabel - resistent to atack of cupim and fungus. 
Treatability : difficult. 
Processing Characteristics : 
Surfacing : regular Sawing : regular 
Drilling: easy Finishing : good 
Drying : easy with little defects 

Uses: 
Civil Construction - Heavy Marine, External, Internal; Light Frames, Int. & Ext. 
Floors - Domestic 
Furniture - General Usage 
Transport 
Veneers and Plywoods - Decorative Veneers 
Diverse Uses - Sport Articles and Toys, Decoration and Ornaments, Textile 
Tools 
Pallets and Cases 

  
Green
Dry
English
Green 
Dry
Metric
Bending Strength
22458
25963
psi
1579
1825
kg/cm2
Crushing Strength
psi
kg/cm2
Max. Crushing Strength
25963
10312
psi
1825
725
kg/cm2
Static Bending (FSPL)
psi
kg/cm2
Impact Strength
inches
cm
Stiffness
2901
3129
1000 psi
204
220
1000 kg/cm2
Work to Maximum Load
28
22
inch-lbs/in3
wml3
2
cm-kg/cm3
Hardness
3684
lbs
1671
kg
Shearing Strength
2048
psi
144
kg/cm2
Toughness
inch-lbs
cm-kg
Specific Gravity
0.92
1.08
0.92
1.08
Weight
62
lbs/ft3
994
kg/cm3
Density (Air-Dry)
62
lbs/ft3
994
kg/cm3
Radial Shrinkage
6.6
%
6.6
%
Tangential Shrinkage
8
%
8
%
Volumetric Shrinkage
13.2
%
13.2
%