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Comments
Common Names
Common Uses
Countries of Distribution
Family Name
Grain
Heartwood Color
Luster
Numerical Data
Polishing
References
Regions of Distribution
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Texture
Trade Name
Tree Size
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Common Names
Algodon, Algodonero, Mandoyu-ra, Paineira, Palo borracho de flor rosada, Paneira, Samohu, Samohu Colorado, Samuhu
Regions of Distribution
Latin America
Countries of Distribution
[VIEW MAP]
Argentina, Brazil, Paraguay
Common Uses
Boat building (general), Boxes and crates, Canoes, Cooperages, Heavy construction, Light construction, Pulp/Paper products
Heartwood Color
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| Brown |
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| Purple |
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| Greenish to greyish |
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| Brown |
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Sapwood Color
Grain
| Even |
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| Interlocked |
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| Straight |
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| Figure |
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| Weak figure |
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| Straight |
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| Interlocked |
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Texture
| Fine |
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| Coarse |
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| Medium to coarse |
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Luster
| Medium |
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| Pronounced |
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| Lustrous |
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Tree Size
Comments
General finishing qualities are rated as good
Response to Hand Tools
| Easy to Work |
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| Easy to machine |
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Polishing
Strength Properties
| Max. crushing strength (stiffness) = very low |
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| Bending strength (MOR) = very low |
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| Modulus of Elasticity (stiffness) = very low |
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| Shrinkage, Tangential = large |
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| Shrinkage, Tangential = fairly large |
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| Shrinkage, Radial = very small |
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| Shrinkage, Radial = small |
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| Density (dry weight) = 23-30 lbs/cu. ft. |
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| Shrinkage, Tangential = moderate |
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| Shearing strength (parallel to grain) = very low |
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| Hardness (side grain) = very soft |
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| Bending strength (MOR) = low |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 3229 | 4817 | psi |
| Density | | 25 | lbs/ft3 |
| Hardness | | 319 | lbs |
| Maximum Crushing Strength | 724 | 1435 | psi |
| Shearing Strength | | 882 | psi |
| Stiffness | 1017 | 1199 | 1000 psi |
| Weight | 25 | 21 | lbs/ft3 |
| Radial Shrinkage | 3 | | % |
| Tangential Shrinkage | 9 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 227 | 338 | kg/cm2 |
| Density | | 400 | kg/m3 |
| Hardness | | 144 | kg |
| Maximum Crushing Strength | 50 | 100 | kg/cm2 |
| Shearing Strength | | 62 | kg/cm2 |
| Stiffness | 71 | 84 | 1000 kg/cm2 |
| Weight | 400 | 336 | kg/m3 |
| Radial Shrinkage | 3 | | % |
References
Celulosa Argentina,1973,Libro del Arbol,Celulosa Argentina Buenos Aires 3 Vols
Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University Press
Record, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. Press
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
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