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Fornitori

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

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

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Ditta 3
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Ditta 2
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Ditta 1
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Tel.: +39 456 5664 54

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Ditta 0
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Abem
Abem (Berlinia bracteosa)

Family: Leguminosae

Common names: Abem, Berlinia, Ebiara, Ekpogi, Ekpogoi, Esabem, Essabem, M'possa, Melegba, Obolo, Pocouli, Red oak, Sarkpei

Distributed in: Cameroon, Congo, Equatorial Guinea, Gabon, Ivory Coast, Liberia, Nigeria, Sierra Leone, Zaire (Africa)

Common uses: Boat building (general), Cabinetmaking, Flooring, Furniture, Heavy construction, Joinery, Millwork, Mine timbers, Paneling, Plywood, Poles, Posts, Railroad ties, Tool handles, Turnery, Vats, Vehicle parts, Veneer: decorative

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isReddish brown, Whiteand the sapwoodWhite, White to yellow.The grain isWavy, the textureMedium coarse to coarseand the lusterMedium

Natural durability: Susceptible to insect attack, Very durable

Kiln Schedules: Dry at a slow speed

Kiln Drying Rate: Naturally dries quickly

Drying Defects: Expect resin/gum exudation, No collapse/honeycomb

Ease of Drying: Slowly

Tree Identification: Bole/stem form is misshapen

Blunting Effect: Moderate

Cutting Resistance: Moderate to saw

Gluing: Fairly Easy to Very Easy

Mortising: Very Good to Excellent

Moulding: Very Good to Excellent

Movement in Service: Very Good to Excellent

Nailing: Holds nails well, Pre-Boring Recommended

Planing: Very Good to Excellent

Resistance to Impregnation: Permeable sapwood

Response to hand tools: Fairly Difficult to Difficult to Work

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Good

Screwing: Screwing yields good results ; Turning: Very Good to Excellent Results

Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 689 kg/m3
Bending Strength 665 1038 kg/cm2
Crushing Strength 425 627 kg/cm2
Hardness 449 kg
Impact Strength cm
Shearing Strength 99 kg/cm2
Stiffness 99 115 1000 kg/cm2
Tangential Shrinkage 8 %
Radial Shrinkage 4 %
Weight 673 544 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9463 14768 psi
Density 43 lbs/ft3
Hardness 991 lbs
Maximum Crushing Strength 6047 8931 psi
Shearing Strength 1418 psi
Stiffness 1413 1636 1000 psi
Weight 42 34 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 8 %
Volumetric Shrinkage 12 %

Max. crushing strength = high
Bending strength (MOR) = medium
Shrinkage, Tangential = fairly large
Shrinkage, Radial = moderate
Density (dry weight) = 46-52 lbs/cu. ft.
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Volumetic = fairly large
Shearing strength (parallel to grain) = very low
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = medium
Modulus of Elasticity (stiffness) = low
Max. crushing strength = medium
Hardness (side grain) = soft
Shrinkage, Volumetric = moderate
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Radial = very small
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Shearing strength (parallel to grain) = medium
Modulus of Elasticity (stiffness) = very low
Hardness (side grain) = very soft
Hardness (side grain) = medium
Bending strength (MOR) = low
Bending strength (MOR) = high

Banks, C.H. and J.P. Schoeman. 1963. Railway Sleeper and Crossing Timbers. Bulletin No. 41, Republic of South Africa. The Government Printer, Pretoria, South Africa.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.48Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Cooper, G.P., Record, S.J.,1931,The Evergreen Forests of Liberia,Yale School Forestry Bulletin,31,pp1-153France - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. FranceFrance - C.T.F.T.,1961,Resultats des Observations et des Essais au CTFT sur Ebiara - Berlinia,Sp.,C.T.F.T Information Tec.,No.122France - C.T.F.T.,1977,Promotion of African Timbers - New Species,CTFT,35 LeafletsKryn, J.M., Forbes, E.W.,1959,The Woods of Liberia,U.S.A. Department of Agriculture,Forest Products Laboratory, Madison,,Report No. 2159Meniaud, J., Bretonnet, F.,1926,Les Bois Coloniaux d'Afrique dans l'Industrie,Publ. de l'Agence Gen. des ColoniesOrganisation for European Economic Co-operation,1951,African Tropical Timber (Nomenclature, Description,OEECSallenave, P.,1964,Proprietes Physiques et Mecaniques des Bois Tropicaux (Premier Supplement,C.T.F.T. Publ.,no.23Takahashi, 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
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