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AmendoimAmendoim
Amendoim (Pterogyne nitens)

Family: Caesalpiniaceae

Common names: Ajunado, Amendoim, Amendoim bravo, Balsamo, Carne devaca, Cocal, Ebiraro, Guarucaia, Guiaro, Guiraro, Gui￿, Ibera-ro, Ibira-ro-mi, Ibiraro, Ibiraro-mi, Ibirar￿biroro, Ibir￿, Ibyraro, Ivararo, Jacutinga, Jucutinga, Madeira nova, Oleo branco, Palo amargo, Palo coco, Palo mortero, Palo rosa, Pau amendoim, Pau Fava, Tapia colorado, Tipa, Tipa colorado, Tipilla, Viraro, Vivar￿uyraro

Distributed in: Argentina, Brazil, Paraguay (Latin America)

Distribution overview: Distributed in the north of Argentina, Paraguay, south of Brazil and Bolivia. It also occurs from the Parana River basin to the border with Bolivia. The tree grows typically at higher elevations and in sandy soils in the Paraguay River Basin. It is usually scarce at other sites, and it seldom grows in wet clayey soils.

Common uses: Agricultural implements, Bedroom suites, Bent Parts, Boat building: framing, Building materials, Cabinetmaking, Chairs, Chests, Concealed parts (Furniture), Cooperages, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Fine furniture, Floor lamps, Flooring, Fuelwood, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Interior construction, Interior trim, Kitchen cabinets, Light construction, Living-room suites, Millwork, Moldings, Office furniture, Paneling, Radio - stereo - TV cabinets, Railroad ties, Rustic furniture, Stools, Structural work, Tables , Tool handles, Trimming, Turnery, Utility furniture, Vats, Vehicle parts, Veneer: decorative, Wainscotting, Wardrobes, Wheel spokes, Wheels

Product sources: Trees in large sizes are rather difficult to find because of over-exploitation.

Environment profile: Widespread, abundant, and globally secure

Tree size: Tree height is 30-40 m

Colors: the heart isPale red to pink, Reddish brownand the sapwoodYellow, Yellowish brown.The grain isStraight, the textureMediumand the lusterPronounced

Natural durability: Moderately durable, Resistant to termites

Odor: No specific smell or taste

Silica Content: Siliceous

LightInduced Color Change: Darker

Kiln Schedules: Dry at a slow speed

Drying Defects: No end splitting, No twisting or warping

Ease of Drying: Rapidly

Comments: General finishing qualities are rated as satisfactory

Blunting Effect: High to severe

Boring: Good results

Carving: Good results

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Fairly Easy to Very Easy

Mortising: Fairly Difficult to Very Difficult

Moulding: Good moulding properties

Movement in Service: Good moulding properties

Nailing: Easy to nail

Planing: good

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Fairly Difficult to Difficult to Work

Routing recessing: Fairly good response to preservative treatment

Sanding: Fairly good sanding characteristics

Turning: Good results

Painting: Satisfactory; Varnishing: Satisfactory ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,65
Density 801 kg/m3
Bending Strength 700 1038 kg/cm2
Crushing Strength 341 500 kg/cm2
Hardness 752 kg
Impact Strength cm
Shearing Strength 155 kg/cm2
Stiffness 111 115 1000 kg/cm2
Tangential Shrinkage 5 %
Radial Shrinkage 3 %
Weight 785 624 kg/m3
Maximum Load cm-kg/cm3
Toughness 399 cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9967 14769 psi
Density 50 lbs/ft3
Hardness 1658 lbs
Maximum Crushing Strength 4862 7122 psi
Shearing Strength 2205 psi
Stiffness 1585 1639 1000 psi
Toughness 347 inch-lbs
Specific Gravity 0.65
Weight 49 39 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 5 %
Volumetric Shrinkage 10 %

Max. crushing strength = medium 0
Shrinkage, Tangential = small
Shrinkage, Radial = small
Bending strength (MOR) = medium
Modulus of Elasticity (stiffness) = low
Hardness (side grain) = medium
Density (dry weight) = 46-52 lbs/cu. ft.
Bending strength (MOR) = low
Shearing strength (parallel to grain) = medium
Density (dry weight) = 53-60 lbs/cu. ft.
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = high
Density = high
Compression strength (parallel to grain) = high
Bending strength (MOR) = very high
Bending strength (MOR) = high

Andy Poynter. 1993. Personal CommunicationCelulosa Argentina,1973,Libro del Arbol,Celulosa Argentina Buenos Aires 3 VolsChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Mainieri, C., Pereira, J.A.,1965,Madeiras do Brasil,Anuario Brasileiro de Economia Florestal,17(17,PP135-416Mainieri, C.,1978,Fichas de Caracteristicas das Madeiras Brasileiras,Inst. Pesquisas TechnologicasRecord, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRizzini, C.T.,1978,Arvores e Madeiras Uteis do Brasil: Manual de Dendrologia Brasileira,Editora Edgard Blucher LTDA BrazilSao Paulo - Instituto de Pesquisas Tecnologicas,1956,Tabelas de Resultados obtidos para Madeiras Nacionais,Inst. Pesq. Tec. Sao Paulo, Brazil Bol., No.31(2nd Ed.)Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4Tortorelli, L.,1956,Maderas y Bosques Argentinos,Editorial Acme S.A.C.I. Buenos Aires
*Come interpretare i dati (manleva su eventuali imprecisioni)