GUATAMBú (Balfourodendron riedelianum)
Nome comercial
Guatambú
Nome científico (autor)
Balfourodendron riedelianum (Engl.) Engl.
Família
RUTACEAE
Nomes comuns
Quatamba; Pequia marfim; Pao marfim; Pao liso; Moroti; Marfim; Ivorywood; Ibiranoti; Ibira-nete; Guatambu moroti; Guatambu blanco; Guatambu; Guataia; Gramixinga; Farinha-seca; Piquiá Marfim (Brazil); Pau Liso (Brazil); Guatambu Branco (Brazil); Pau Marfim (Brazil); Ivory Wood
Nome científico sinônimo (autor
Helietta multiflora Engl.; Esenbeckia riedeliana Engl.
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The trees are reported to reach heights of 20 to 30 m, with trunk diameters ranging from 40 to 90 cm. They develop well-formed and cylindrical boles, up to one half of the height of the tree.
Habitat natural
Balfourodendron riedelianum is a pioneer species, found in clear areas of primary forests or in secondary forests. It is known or inferred that the harvesting of specimens from the wild for international trade has, or may have, a detrimental impact on the
Distribuição natural
This species is reported to occur in Brazil, in the forests of Minas Gerais, Mato Grosso do Sul, Rio Grande do Sul and also along the Parana basin.
Usos não madeiravéis
Dermatitis, respiratory effects
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Occasionally vessels in diagonal and/or radial pattern. Occasionally wood semi-ring porous and/or ring porous. Vessels in radial multiples of 4 or more common. Tangential diameter of vessel lumina 100 micras or less (very small). Vessels p Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Prismatic crystals in the ray cells. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Fibers with simple to minutely bordered pits.
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Foto de madeira macroscópica (tangencial)
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Foto da secção transversal microscopica
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
It does not have a peculiar smell, but has a bitter taste.
Cor
The sapwood is non differentiated, the timber is nearly white to yellow in color, occasionally with dark streaks.
Indice de cor
6
Grã
The grain is straight, sometimes interlocked.
Veios ou desenhos na superfície
The wood is typically fine to medium in texture.
Brilho
This wood is frequently moderate in luster.
DURABILIDADE NATURAL
It is rated as moderately durable to non durable, it is susceptible to blue staining fungi.
Indice de durabilidade natural
6
Tratamento preservativo
The heartwood is reported to be moderately permeable, but the sapwood is treatable.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.74
Densidade seca ao ar 12% (g/cm³)
0.84
Contração Tangencial Total (Saturado até peso seco) (%)
9.6
Contração Radial Total (Saturado até peso seco) (%)
4.9
Defeitos causados pela secagem
Ease of Drying: This species is reported to be easy to dry, sometimes end checking can occur. Drying Defects: Slight risk of warping and checking. Casehardening is reported when drying thick pieces over 50 mm.
Programa de secagem recomendável
US-T6-C3; UK-E
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
2.0
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
1399
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
601
TRABALHABILIDADE
Serrar ou Cortar
Sawing of this species is easy.
Desgaste de ferramentas
The wood has a slight blunting effect.
Aspectos do processamento em máquinas
This species is easy to machine.
Aplainamento
This species is easy to plane.
Aplicação para molduras
Tearing can occur if interlocked grain is present
Comportamento na aplicação de pregos
It is difficult to nail, pre-boring is recommended.
Colagem
Gluing behavior is reportedly good.
Acabamento
This species is reported to be easy to finish.
Aplicação de verniz
The behavior in staining is fair.
Revestimentos
It paints and varnishes well.
Operação de lustre da superfície (brilho)
This species is reported to be easy to polish.
Steam Bending
Steam bending of this wood is possible.
Espécies alternativas
It is suggested as a substitute for Rock Maple, Sycamore or Boxwood.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
FURNITURE AND CABINETS, TOOLS, tool handles, agricultural tools, NAVAL CONSTRUCTION
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
FERRAMENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Cabos de instrumentos agrícolas
- 44 - Atlas of Peruvian Woods
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
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