Aoun (Polyscias kikuyuensis)
Family: Araliaceae
Common names: Aoun, Aounet, Aul, Ewondet, Kwaluk, Mauchet, Muadswa, Mukanya, Mukurukuru, Mungorusa, Mutati, Ol-yalilingi, Saiyet, Samiet
Distributed in: Kenya, Tanzania, Zaire (Africa)
Common uses: Boxes and crates, Cabinetmaking, Food containers, Furniture, Light construction, Plywood corestock, Plywood, Pulp/Paper products, Sporting Goods, Toys
Environment profile: Abundant/Secure
Tree size: Tree height is 30-40 m
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite, Yellow.The grain isStraight, the textureUniformand the lusterHigh
Natural durability: Susceptible to attack from termites (Isoptera), Susceptible to insect attack
Odor: Has an odor
Drying Defects: Slight end splitting, Uneven Moisture Content
Ease of Drying: Thick Stock Requires Care
Tree Identification: Bole/stem form is straight
Blunting Effect: Little
Boring: Fairly easy to very easy
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Fairly Easy to Very Easy
Mortising: Fairly Easy to Very Easy
Moulding: Poor to Very Poor
Movement in Service: Poor to Very Poor
Nailing: Poor to Very Poor , Very Good to Excellent
Planing: Planes well, to a good finish
Resistance to Abrasion: Moderate
Resistance to Impregnation: Sapwood is permeable
Resistance to Splitting: Poor
Response to hand tools: Fairly Difficult to Difficult to Work
Sanding: Very Good to Excellent Results
Veneering qualities: Veneers easily, Veneers moderately easy
Screwing: Screwing yields satisfactory results, Very Good to Excellent Results; Turning: Very Good to Excellent Results
Painting: Very Good to Excellent; Polishing: Fairly Easy to Very Easy; Staining: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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|
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Density |
|
368 |
kg/m3 |
Bending Strength |
176 |
254 |
kg/cm2 |
Crushing Strength |
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kg/cm2 |
Hardness |
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kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
|
kg/cm2 |
Stiffness |
|
|
1000 kg/cm2 |
Tangential Shrinkage |
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|
% |
Radial Shrinkage |
2 |
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% |
Weight |
368 |
304 |
kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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|
kg/cm2 |
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 |  |  |  | Item | Green | Dry | English | Bending Strength | 2509 | 3623 | psi | Density | | 23 | lbs/ft3 | Weight | 23 | 19 | lbs/ft3 | Radial Shrinkage | 2 | | % | Tangential Shrinkage | 5 | | % | |
Density (dry weight) = 15-22 lbs/cu. ft. Density (dry weight) = 23-30 lbs/cu. ft. Shrinkage, Tangential = very small Shrinkage, Radial = very small Bending strength (MOR) = very low Shrinkage, Tangential = small Shrinkage, Radial = small
Battiscombe, E.,1926,A Descriptive Catalogue of some of the Common Trees and Woody Plants of,Kenya Colony,Crown Agents for the Colonies LondonBolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBrenan, J.P.M., Greenway, P.J.,1949,Check-lists of the Forest Trees and Shrubs of the British Empire,Imperial Forestry Institute, Oxford No.5 Tanganyika Territories Part 2France - 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. FrancePatterson, D.N.,1963,The strength of Kenya timbers, their derivation and application,Kenya Forestry Department Research Bulletin,No.23Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
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