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Indirizzo: via dei platani 4 liguria
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Keur
Keur (Virgilia divaricata)

Family: Leguminosae

Common names: Keur

Distributed in: Australia, India, New Zealand, South Africa (Africa, Oceania and S.E. Asia)

Common uses: Agricultural implements, Flooring, Pulp/Paper products, Railroad ties, Vehicle parts

Tree size: Tree height is 0-10 m

Colors: the heart isOrange, YellowThe grain isStraight, the textureCoarse

Natural durability: Perishable, Straight



  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 576 kg/m3
Bending Strength 654 1024 kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength 109 kg/cm2
Stiffness 95 110 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 3 %
Weight 560 448 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9310 14566 psi
Density 36 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 3916 6397 psi
Shearing Strength 1560 psi
Stiffness 1358 1568 1000 psi
Weight 35 28 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %

Modulus of Elasticity (stiffness) = low
Hardness (side grain) = soft
Shrinkage, Tangential = small
Shrinkage, Radial = small
Shearing strength (parallel to grain) = low
Max. crushing strength = medium
Density (dry weight) = 38-45 lbs/cu. ft.
Density (dry weight) = 31-37 lbs/cu. ft.
Bending strength (MOR) = medium

Banks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48Banks, C.H.,1970,The Durability of South African Wood and Wood Base Building Materials,South African Forestry Journal,No.75Scott, M.H.,1935,Weights of South African Growth Timbers,South African Department of Agriculture and Forestry Bulletin,No.145,Forest Products Institute, Forestry Series No.1Wyk Van, B.E.,1982,Keur (Virgilia orobordes): A feasible indigenous hardwood for the South,African Forestry Industry,South African Forestry Journal 122 pp49-5
*Come interpretare i dati (manleva su eventuali imprecisioni)