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Blunting Effect Boring Carving Comments Common Names Common Uses Countries of Distribution Cutting Resistance Distribution Overview Drying Defects Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Kiln Schedules Light-Induced Color Change Luster Mortising Moulding Movement in Service Nailing Natural Durability Numerical Data Odor Painting Planing Product Sources References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sanding Sapwood Color Scientific Name Silica Content Strength Properties Texture Trade Name Tree Size Turning Varnishing		Scientific Name Pterogyne nitens Trade Name Amendoim Family Name Caesalpiniaceae Common Names Ajunado, Amendoim, Amendoim bravo, Balsamo, Carne devaca, Cocal, Ebiraro, Guarucaia, Guiaro, Guiraro, Guiáro, Ibera-ro, Ibira-ro-mi, Ibiraro, Ibiraro-mi, Ibiraró, Ibiroro, Ibiráro, 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, Vivaró, Yuyraro Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Argentina, Brazil, Paraguay 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 Environmental Profile Widespread, abundant, and globally secure Some long-term concern for the species Rare in some parts of its range, particularly at the periphery Rare in parts of its natural range Data source is World Conservation Monitoring Center Data source is Nature Conservancy 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. Heartwood Color Brown Reddish brown Pale red to pink Brown Has some similarity to Mahogany Sapwood Color Yellow Brown Grey Yellowish brown White to yellow Well defined Different than heartwood Grain Figure Other (figure) Straight Even Interlocked Roey (figure) Other figure Straight Roey figure Interlocked Texture Medium Coarse Medium Fine Fine to medium Luster High Lustrous Pronounced Natural Durability Resistant to termites Moderately durable Heartwood in contact with ground may decay in 10 - 15 years Odor No specific smell or taste Silica Content Siliceous Light-Induced Color Change Darker Kiln Schedules Dry at a slow speed Drying Defects Distortion Checking Discoloration No twisting or warping No end splitting Ease of Drying Rapidly Moderately Difficult to Difficult Tree Size Tree height is 20-30 m Tree height is 30-40 m Product Sources Trees in large sizes are rather difficult to find because of over-exploitation. Comments General finishing qualities are rated as satisfactory Blunting Effect High to severe Boring Fairly difficult to very difficult Good results Carving Fairly Difficult to Very Difficult Good results Cutting Resistance Fairly Difficult to Very Difficult to saw Gluing Fair to Good Results Fairly Easy to Very Easy Mortising Fairly Difficult to Very Difficult Easy to mortise Moulding Fairly Difficult to Very Difficult Good moulding properties Movement in Service Stable Retain shape after manufacture Nailing Easy to nail Planing Fairly Difficult to Very Difficult Good planing properties Resistance to Impregnation Resistant sapwood Resistant heartwood Heartwood is resistant Response to Hand Tools Fairly Difficult to Difficult to Work Easy to machine Routing & Recessing Fairly Difficult to Very Difficult Fairly good response to preservative treatment Sanding Fairly good sanding characteristics Turning Fairly Difficult to Very Difficult Good results Painting Satisfactory results Varnishing Satisfactory Strength Properties Max. crushing strength = medium 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 Numerical Data 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 % Item Green Dry Metric Bending Strength 700 1038 kg/cm2 Density 801 kg/m3 Hardness 752 kg Maximum Crushing Strength 341 500 kg/cm2 Shearing Strength 155 kg/cm2 Stiffness 111 115 1000 kg/cm2 Toughness 399 cm-kg Specific Gravity 0.65 Weight 785 624 kg/m3 Radial Shrinkage 3 % Tangential Shrinkage 5 % References Andy Poynter. 1993. Personal Communication Celulosa Argentina,1973,Libro del Arbol,Celulosa Argentina Buenos Aires 3 Vols Chudnoff, 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,PP135-416 Mainieri, C.,1978,Fichas de Caracteristicas das Madeiras Brasileiras,Inst. Pesquisas Technologicas Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University Press Rizzini, C.T.,1978,Arvores e Madeiras Uteis do Brasil: Manual de Dendrologia Brasileira,Editora Edgard Blucher LTDA Brazil Sao 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.4 Tortorelli, L.,1956,Maderas y Bosques Argentinos,Editorial Acme S.A.C.I. Buenos Aires