Agawa (Schrebera alata)
Family: Oleaceae
Common names: Agawa, Gakawa, Kabigiriet, Kakaruet, Kakawa, Msegembe, Mutoma, Wildejasmyn, Wing-leaved wooden pear
Distributed in: Kenya, Uganda (Africa)
Common uses: Agricultural implements, Cabinetmaking, Flooring: industrial heavy traffic, Fuelwood, Furniture, Heavy construction, Joinery, Mathematical instruments, Mine timbers, Sporting Goods, Tool handles, Toys, Turnery, Vehicle parts, Veneer: decorative
Tree size: Tree height is 10-20 m
Colors: the heart isWhite to cream, Yellowand the sapwoodWhite, Yellow.The grain isWavy, the textureMedium
Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to insect attack
Kiln Drying Rate: Naturally dries slowly
Drying Defects: Moderate end spitting, Moderate twist/warp
Ease of Drying: Slowly
Tree Identification: Bole/stem form is misshapen
Cutting Resistance: Easy to saw
Gluing: Fairly Easy to Very Easy
Nailing: Possible if prebored, Very Good to Excellent
Planing: Very Good to Excellent
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Easy to Work
Turning: Turns with moderate ease
Painting: Good; Polishing: Good; Staining: Very Good to Excellent; Varnishing: 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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Density |
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801 |
kg/m3 |
Bending Strength |
654 |
1024 |
kg/cm2 |
Crushing Strength |
275 |
449 |
kg/cm2 |
Hardness |
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kg |
Impact Strength |
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cm |
Shearing Strength |
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132 |
kg/cm2 |
Stiffness |
117 |
135 |
1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
5 |
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% |
Weight |
785 |
624 |
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 | 9310 | 14566 | psi | Density | | 50 | lbs/ft3 | Maximum Crushing Strength | 3916 | 6397 | psi | Shearing Strength | | 1883 | psi | Stiffness | 1665 | 1923 | 1000 psi | Weight | 49 | 39 | lbs/ft3 | Radial Shrinkage | 5 | | % | Tangential Shrinkage | 7 | | % | |
Density (dry weight) = 46-52 lbs/cu. ft. Shrinkage, Tangential = moderate Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = medium Max. crushing strength = medium Density (dry weight) = 53-60 lbs/cu. ft Bending strength (MOR) = medium Shrinkage, Radial = moderate Shrinkage, Radial = large Shearing strength (parallel to grain) = medium Shearing strength (parallel to grain) = 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 ResearchDale, I.R., Greenway, P.J.,1961,Kenya Trees and Shrubs,Buchanans Kenya Estates Ltd. Nairobi Hatchards LondonEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaPalgrave, K.C.,1977,Trees of Southern Africa,Cape Town South AfricaWimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
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