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Ajo
Ajo (Gallesia integrifolia)

Family: Phytolaccaceae

Common names: Ajo, Ajo ajo, Guararema, Ibirarema, Palo cebolla, Pau d'alho

Distributed in: Bolivia, Brazil, Peru (Latin America)

Common uses: Boxes and crates, Mine timbers, Turnery

Tree size: Bole length is 10-20 m

Colors: the heart isRed, Yellow to golden-yellow to orangeand the sapwoodRed, White to yellow.The grain isStriped figure, the textureFineand the lusterLustrous

Natural durability: Resistant to termites, Susceptible to insect attack

Drying Defects: Moderate spring/bow

Ease of Drying: Difficult

Tree Identification: Bole/stem form is misshapen

Comments: General finishing qualities are rated as poor

Cutting Resistance: Cutting Resistance with green wood is easy

Planing: Planes to a poor finish

Resistance to Impregnation: Heartwood is permeable

Response to hand tools: Easy to machine



  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 576 kg/m3
Bending Strength 429 674 kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 560 448 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 6111 9589 psi
Density 36 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 3916 6397 psi
Weight 35 28 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 9 %

Max. crushing strength = medium
Hardness (side grain) = soft
Bending strength (MOR) = low
Shrinkage, Tangential = fairly large
Shrinkage, Radial = fairly large
Density (dry weight) = 38-45 lbs/cu. ft.
Density (dry weight) = 31-37 lbs/cu. ft.

Altamirano, S.V.,1992,Maderas de Bolivia (Caracteristicas y usos de 55 maderas tropicals,Camara Nacional ForestalPeru - P.A.D.T.,1981,Descripcion general y anatomica de 105 Maderas del Grupo Andino,Junta del Acuerdo de Cartagena, P.A.D.T. Report, Junac, Lima, Peru.Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University Press
*Come interpretare i dati (manleva su eventuali imprecisioni)