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Ditta 5
Indirizzo: via dei platani 4 liguria
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Hisirudan
Hisirudan (Platymiscium trinitatis)

Family: Leguminosae

Common names: Hisirudan, Koenatepi, Macacahuba, Macacauba, Macacauba de terra firme, Macacauba vermelha, Macacauba-preta, Roble, Trebol

Distributed in: Brazil, Ecuador, Paraguay, Suriname, Trinidad and Tobago (Central America, Latin America, Oceania and S.E. Asia)

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

Tree size: Tree height is 30-40 m

Colors: the heart isRed, Reddish brownand the sapwoodWhite to yellow .The grain isWavy, the textureMediumand the lusterPronounced

Natural durability: Susceptible to insect attack, Very durable

Kiln Schedules: Dry at a moderate speed

Ease of Drying: Moderately Difficult to Difficult

Tree Identification: Bole/stem form is buttressed

Comments: General finishing qualities are rated as good General finishing qualities are rated as satisfactory

Cutting Resistance: Moderate to saw

Planing: Very Good to Excellent

Resistance to Impregnation: Heartwood is moderately resistant

Response to hand tools: Moderate working qualities


Polishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 993 kg/m3
Bending Strength 1132 1659 kg/cm2
Crushing Strength 650 891 kg/cm2
Hardness 1333 kg
Impact Strength cm
Shearing Strength 192 kg/cm2
Stiffness 181 211 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 977 801 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
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 %

Modulus of Elasticity (stiffness) = very high
Max. crushing strength = very high
Bending strength (MOR) = very high
Bending strength (MOR) = high
Hardness (side grain) = very hard
Density (dry weight) = 61-67 lbs/cu. ft
Shrinkage, Tangential = small
Shrinkage, Radial = fairly large
Shearing strength (parallel to grain) = very high
Shearing strength (parallel to grain) = medium
Shearing strength (parallel to grain) = high
Max. crushing strength = high
Bending strength (MOR) = medium

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,pp56Brazil-Ministerio do Interior,1979,Pesquisas e Informac￿ces sobre especies florestais da Amazonia,Dept. de Recuros Naturais Centro de Tecnologia MadeireiraDucke, A.,1943,The Most Important Woods of the Amazon Valley,Tropical Woods,12(74,pp1-15Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentMarshall, R.C.,1934,Trees of Trinidad and Tobago,Government Printer Port of Spain TrinidadRecord, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRecord, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. PressRizzini, C.T.,1978,Arvores e Madeiras Uteis do Brasil: Manual de Dendrologia Brasileira,Editora Edgard Blucher LTDA BrazilVink, 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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