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Ditta 5
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Andoung
Andoung (Monopetalanthus heitzii)

Family: Caesalpiniaceae

Common names: Adoung, Adoung de heitz, Andjung, Andoung, Andoung de heitz, Ekop, Ekop-mayo, N'Douma, Zoele

Distributed in: Gabon (Africa)

Distribution overview: The growth range of the species is confined to the northern areas in Gabon. It grows in moist soils along rivers and swampy or occasionally flooded areas.

Common uses: Boat building, Boxes and crates, Building construction, Building materials, Cabinetmaking, Canoes, Construction, Core Stock, Decorative plywood, Decorative veneer, Domestic flooring, Factory flooring, Figured veneer, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Interior trim, Joinery, Ladders , Lifeboats, Light construction, Matchboxes, Matches, Millwork, Moldings, Novelties, Office furniture, Packing cases, Parquet flooring, Plain veneer, Plywood, Pulp/Paper products, Pulpwood, Shipbuilding, Structural plywood, Sub-flooring, Trimming, Veneer, Wainscotting

Environment profile: Status has not been officially assessed

Tree size: Tree height is 30-40 m

Colors: the heart isWhite to cream, Yellowand the sapwoodWhitish to greyish white , Yellow.The grain isRays figure, the textureUniformand the lusterMedium

Natural durability: Susceptible to insect attack, Very durable

Odor: No specific smell or taste

LightInduced Color Change: Darker

Kiln Schedules: T6 - D2 (4/4) US

Drying Defects: Slight cupping, Slight surface checking

Ease of Drying: Fairly Easy

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good Quick removal from forest avoids splitting, and losses to insect or fungal attack

Blunting Effect: Moderate

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Easy to saw

Gluing: May need filler

Mortising: Generally good mortising properties

Moulding: Good finishing

Movement in Service: Good finishing

Nailing: Tends to split during nailing, Very Good to Excellent

Planing: Fairly Easy to Very Easy

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Responds Readily

Routing recessing: Generally good

Sanding: Fair to Good Results

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Poor

Screwing: Satisfactory screwing properties, Very Good to Excellent Results; Turning: Moderate dulling of cutting edges

Painting: Very Good to Excellent; Polishing: Very Good to Excellent; Staining: Finish is generally good; Varnishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,35
Density 544 kg/m3
Bending Strength 669 936 kg/cm2
Crushing Strength 233 442 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength 117 kg/cm2
Stiffness 71 91 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 3 %
Weight 657 528 kg/m3
Maximum Load cm-kg/cm3
Toughness 248 cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9524 13325 psi
Density 34 lbs/ft3
Maximum Crushing Strength 3324 6292 psi
Shearing Strength 1666 psi
Stiffness 1017 1306 1000 psi
Toughness 216 inch-lbs
Specific Gravity 0.35
Weight 41 33 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %
Volumetric Shrinkage 11 %

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

Bolza, 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.Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry DepartmentI.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer CuttingITTO.1986.Tropical Timber Atlas, Volume 1 - Africa.International Tropical Timber Organization (ITTO) and Centre Technique Forestier Tropical (CTFT, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France.ITTO. New Marketable Species Technical Notes. Prepared by Centre Technique Forestier Tropical (CTFT, Division of CIRAD, 45 bis, Avenue de la Belle Gabrielle, 94736 Nogent-sur-marne Cedex, FranceTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7WCMC.1992.Conservation Status Listing - Trees and Timbers of the World.World Conservation Monitoring Center - Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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