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Fornitori

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

Sito web: www.pippo.it
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Ditta 4
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
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Ditta 3
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
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Ditta 2
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 1
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 0
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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African ebony
African ebony (Diospyros kamerunensis)

Family: Ebenaceae

Common names: African ebony, Cameroon ebony, Dib-bah, Dre-bah, Kake, Kema-osibin, Omenewa, Omenowa, Omera, Sefflay

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

Common uses: Agricultural implements, Boat building (general), Carvings, Flooring, Handles: general, Heavy construction, Joinery, Millwork, Mine timbers, Musical instruments, Musical instruments: percussion, Plywood, Poles, Posts, Sporting Goods, Tool handles, Turnery, Vehicle parts, Veneer: decorative

Tree size: Bole length is 20-30 m

Colors: the heart isWhite, Yellowand the sapwoodWhite, Yellow.The grain isStraight, the textureFine

Natural durability: Susceptible to marine borer attack, Very durable

LightInduced Color Change: None

Kiln Drying Rate: Naturally dries slowly

Drying Defects: Slight twist/warp, Splitting

Ease of Drying: Slowly

Comments: General finishing qualities are rated as good

Blunting Effect: Moderate

Gluing: Fairly Easy to Very Easy

Nailing: Fairly Difficult to Very Difficult, Pre-Boring Recommended

Planing: Poor to Very Poor

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Fairly Difficult to Difficult to Work

Steam bending: Fair to Good Results

Turning: Very Good to Excellent Results

Polishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 977 kg/m3
Bending Strength 954 1473 kg/cm2
Crushing Strength kg/cm2
Hardness 1192 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 134 155 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 6 %
Weight 961 769 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 13576 20956 psi
Density 61 lbs/ft3
Hardness 2628 lbs
Stiffness 1916 2208 1000 psi
Weight 60 48 lbs/ft3
Radial Shrinkage 6 %
Tangential Shrinkage 9 %

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

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,pp1-153Ghana - 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. 2159Takahashi, 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)