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Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Ease of Drying
Family Name
Grain
Heartwood Color
Kiln Schedules
Luster
Movement in Service
Natural Durability
Numerical Data
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Synonyms
Texture
Trade Name
Tree Identification
Tree Size
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Synonyms
Platymiscium duckei, Platymiscium nigrum
Common Names
Hisirudan, Koenatepi, Macacahuba, Macacauba, Macacauba de terra firme, Macacauba vermelha, Macacauba-preta, Roble, Trebol
Regions of Distribution
Central America, Latin America, Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Brazil, Ecuador, Paraguay, Suriname, Trinidad and Tobago
Common Uses
Billiard-cue butts, Brush backs & handles, Cabinetmaking, Carvings, Flooring, Furniture, Handles: general, Heavy construction, Joinery, Musical instruments, Musical instruments: strings, Posts, Railroad ties, Tool handles, Turnery, Veneer: decorative
Heartwood Color
| Brown |
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| Red |
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| Pink |
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| Reddish brown |
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Sapwood Color
Grain
| Even |
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| Closed |
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| Interlocked |
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| Figure |
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| Straight |
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| Wavy |
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| Distinct (figure) |
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| Interlocked |
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| Wavy |
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| Straight |
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| Distinct figure |
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Texture
| Medium |
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| Fine |
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| Coarse |
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| Medium |
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| Fine |
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| Fine to medium |
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Luster
| High |
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| Medium |
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| Lustrous |
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| Pronounced |
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Natural Durability
| Perishable |
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| Resistant to marine borers |
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| Non-durable |
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| Non-resistant to termites |
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| Susceptible to insect attack |
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| Very durable |
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| Durable |
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| Susceptible to attack from termites (Isoptera) |
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| Resistant to attack from powder post (Lyctid & Bostrychid) beetles |
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| Resistant to attack from marine borers |
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Kiln Schedules
Ease of Drying
| Moderately Difficult to Difficult |
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| Fairly Easy |
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| Easy |
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Tree Identification
| Bole/stem form is buttressed |
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Tree Size
| Bole length is 20-30 m |
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| Tree height is 30-40 m |
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| Tree height is 20-30 m |
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Comments
General finishing qualities are rated as good
General finishing qualities are rated as satisfactory
Cutting Resistance
| Easy to saw |
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| Fairly Difficult to Very Difficult to saw |
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| Moderate to saw |
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Movement in Service
Planing
| Very Good to Excellent Results |
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| Fairly Difficult to Very Difficult |
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| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Easy to plane |
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Resistance to Impregnation
| Heartwood is moderately resistant |
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Response to Hand Tools
| Easy to Work |
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| Easy to machine |
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| Moderate working qualities |
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| Difficult to machine |
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Polishing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Satisfactory results |
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| Good results |
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Strength Properties
| Modulus of Elasticity (stiffness) = very high |
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| Max. crushing strength = very high |
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| Bending strength (MOR) = very high |
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| Bending strength (MOR) = high |
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| Hardness (side grain) = very hard |
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| Density (dry weight) = 61-67 lbs/cu. ft |
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| Shrinkage, Tangential = small |
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| Shrinkage, Radial = fairly large |
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| Shearing strength (parallel to grain) = very high |
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| Shearing strength (parallel to grain) = medium |
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| Shearing strength (parallel to grain) = high |
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| Max. crushing strength = high |
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| Bending strength (MOR) = medium |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 16108 | 23606 | psi |
| Density | | 62 | lbs/ft3 |
| Hardness | | 2940 | lbs |
| Maximum Crushing Strength | 9251 | 12678 | psi |
| Shearing Strength | | 2745 | psi |
| Stiffness | 2578 | 3011 | 1000 psi |
| Weight | 61 | 50 | lbs/ft3 |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 6 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 1132 | 1659 | kg/cm2 |
| Density | | 993 | kg/m3 |
| Hardness | | 1333 | kg |
| Maximum Crushing Strength | 650 | 891 | kg/cm2 |
| Shearing Strength | | 192 | kg/cm2 |
| Stiffness | 181 | 211 | 1000 kg/cm2 |
| Weight | 977 | 801 | kg/m3 |
| Radial Shrinkage | 5 | | % |
References
Almeida, D.G. de, Costa, J.R. da,1956,Madeiras do Brasil. (Timbers of Brazil.,Min. Ag. Servico de Economia Rural, Rio de Janeiro, Brazil,pp56
Brazil-Ministerio do Interior,1979,Pesquisas e Informac†ces sobre especies florestais da Amazonia,Dept. de Recuros Naturais Centro de Tecnologia Madeireira
Ducke, A.,1943,The Most Important Woods of the Amazon Valley,Tropical Woods,12(74,pp1-15
Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry Department
Marshall, R.C.,1934,Trees of Trinidad and Tobago,Government Printer Port of Spain Trinidad
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
Rizzini, C.T.,1978,Arvores e Madeiras Uteis do Brasil: Manual de Dendrologia Brasileira,Editora Edgard Blucher LTDA Brazil
Vink, A.T.,1965,Surinam Timbers,Surinam Forest Service Paramaribo,3rd rev. ed.
Wangaard, F.F., W.L. Stern, and S.L. Goodrich. 1955. Tropical Woods - Properties and Uses of Tropical Woods, Volume V, No. 103. School of Forestry, Yale University, New Haven, Connecticut.
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