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Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 4
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Ditta 2
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Ditta 1
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Ankyeyi
Ankyeyi (Diospyros sanza-minika)

Family: Ebenaceae

Common names: Ankyeyi, Dubima, Enkyinwine, Esono-afe, Esono-akyenie, Esonoakyi, Esunseka, Flintbark, Kusibiri, Liberia ebony, Okusibiri, Sanza minika, Sanzamouki, Sanzamulike

Distributed in: Gabon, Ghana, Ivory Coast, Liberia, Sierra Leone (Africa)

Common uses: Agricultural implements, Boat building (general), Carvings, Flooring, Fuelwood, Handles: general, Heavy construction, Joinery, Ladders, Mine timbers, Poles, Posts, Sporting Goods, Tool handles, Toys, Turnery, Vehicle parts

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isWhite to cream, Yellowand the sapwoodStraight, Tan., the textureMediumand the lusterLow

Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to marine borer attack

Odor: Has an odor

Silica Content: Siliceous

LightInduced Color Change: Darker

Kiln Schedules: Kiln Drying Rate (in days) is slow

Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)

Drying Defects: Distortion, Resin Exudation

Ease of Drying: Thick Stock Requires Care

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good

Blunting Effect: Moderate

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Fairly Difficult to Very Difficult

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Possible if prebored, Very Good to Excellent

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Difficult to machine

Routing recessing: Fairly Easy to Very Easy

Sanding: Fairly Easy to Very Easy

Steam bending: Poor to Very Poor Results

Screwing: Very Good to Excellent Results ; Turning: Fairly Easy to Very Easy

Polishing: Satisfactory; Staining: Fairly Difficult to Very Difficult ; Varnishing: Fairly Difficult to Very Difficult ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 897 kg/m3
Bending Strength 911 1388 kg/cm2
Crushing Strength 425 627 kg/cm2
Hardness 1333 kg
Impact Strength cm
Shearing Strength 155 kg/cm2
Stiffness 117 135 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 881 721 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 12968 19750 psi
Density 56 lbs/ft3
Hardness 2940 lbs
Maximum Crushing Strength 6047 8931 psi
Shearing Strength 2205 psi
Stiffness 1665 1923 1000 psi
Weight 55 45 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 8 %

Modulus of Elasticity (stiffness) = medium
Max. crushing strength = high
Bending strength (MOR) = high
Hardness (side grain) = very hard
Bending strength (MOR) = medium
Shearing strength (parallel to grain) = medium
Max. crushing strength = medium
Density (dry weight) = 61-67 lbs/cu. ft
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Density (dry weight) = 53-60 lbs/cu. ft
Density (dry weight) = 46-52 lbs/cu. ft.
Bending strength (MOR) = very high

Armstrong, F.H.,1960,The Strength Properties of Timber,Forest Products Research Laboratory, London Bulletin,No.45Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchCooper, G.P., Record, S.J.,1931,The Evergreen Forests of Liberia,Yale School Forestry Bulletin,31,pp1-153Dalziel, J.M.,1937,The Useful Plants of West Tropical Africa,Crown Agents for the ColoniesErfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry DepartmentGhana - Timber Marketing Board,1969,Ghana Hardwoods,Timber Marketing BoardIrvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKinloch, D., Miller, W.A.,1949,Gold Coast Timbers,Govt. Printer Gold CoastKryn, J.M., Forbes, E.W.,1959,The Woods of Liberia,U.S.A. Department of Agriculture,Forest Products Laboratory, Madison,,Report No. 2159Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TSavill, P.S., Fox, J.E.D.,1967,Trees of Sierra LeoneTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7
*Come interpretare i dati (manleva su eventuali imprecisioni)