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Pau-roxo

Scientific name: Peltogyne paniculata

 

Other common names:

Caatingueira, Catingueira, Coataquiçauá, Coataquiçava, Coatiquiçauá, Coraci, Guarabu, Mulateiro-da-terra-firme, Pau-ferro, Pau-mulato, Pau-mulato-da-terra-firme, Pau-roxo, Pau-roxo-da-caatinga, Pau-violeta, Roxinho.

 

Tree:

Commercial height: 13,40 m; Diameter: (DBH) 47.97 cm; (DAB) 47.95 cm; Trunk: straight; Buttress: from low to 1,80 m.

 

Workability/end-uses:

 

Results Planing Frame Sanding Belt Narrow Turning Boring Sanding Belt Large
Number of samples 51 15 09 51 3
Surface Finishing Fair Excellent Good Good Excellent
Defect Fuzzy No defect Torn Fuzzy -
Setting Equipment Suitable - Suitable Suitable -
Pasting Degree - - - - Minimum

 

Images

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Phisical Properties:

 

Density(g/cm3) Shrinkage (%) Shrinkage Tangential/ Shrinkage Radial
Dry Green Basic 12% Tangential Radial Volumetric
0.93  1.27  0.81  1.03 8.10 5.10  12.70  1.59

 

Mechanical Properties:

 

State Static Bending Compression Janka Hardness
Modulus of rupture (kgf/cm2) Modulus of elasticity (1.000kgf/cm2) Parallel to the grain Perpendicular to the grain Parallel to the grain (kgf) End to the grain (kgf)
Maximum compression (kgf/cm2) Stress at proportional limit (kgf/cm2)
Green 1317  157   694   207   1199  1331 
Dry 1908  181  923  203  1650  1536  

 

State Tension Cleavage strenght Shear Nail extration
Perpendicular to the grain Maximum compression (kgf/cm) Maximum compression (kgf/cm) Parallel to the grain (kgf) End to the grain (kgf)
Maximum compression (kgf/cm2)
Green 44  78  145  186  185 
Dry 29  49  185     

 

Source: Laboratory of Forest Products - IBAMA-Brasília-Brazil

 

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