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Blunting Effect
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Ease of Drying
Family Name
Grain
Kiln Drying Rate
Luster
Mortising
Moulding
Nailing
Natural Durability
Numerical Data
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Scientific Name
Strength Properties
Synonyms
Texture
Trade Name
Tree Identification
Tree Size

Scientific Name
Malacantha alnifolia

Trade Name
Afraba

Family Name
Sapotaceae

Synonyms
Sideroxylon adolf, Chrysophyllum ferrugine, Malacantha ferrugine, Malacantha heudelotiana


Wood Image 1

Common Names
Afraba, Akala, Akara, Akonko, Akpafia, Banga, Banwa, Chepkabet, Dablaku, Fafaraha, Fuoda, Gigintshotsho, Kipwoibet, Lablaku, Luniondet, Muna, Mutunguru, Ngechebet, Owri, Pusum, Seite, Shoi buzozi, Tutoduodi

Regions of Distribution
Africa

Countries of Distribution  [VIEW MAP]
Kenya, Nigeria, Senegal

Common Uses
Boat building (general), Boat building: decking, Boxes and crates, Flooring, Food containers, Fuelwood, Furniture, Joinery, Light construction, Plywood corestock, Plywood, Poles, Tool handles, Vehicle parts

Grain
Closed
Wavy

Wavy
Figure shows patterns other than those generally described


Texture
Medium


Luster
Medium


Natural Durability
Durable
Resistant to attack from termites (Isoptera)
Durable
Susceptible to marine borer attack
Susceptible to attack from termites (Isoptera)
Susceptible to attack from powder post (Lyctid & Bostrychid) beetles
Pinworms (ambrosia beetles) often present in the standing tree
Pinworms (ambrosia beetles) may be present in the felled log
Perishable
Non durable
Moderately durable


Ease of Drying
Fairly Easy
Rapidly
Easy


Kiln Drying Rate
Naturally dries quickly


Tree Identification
Bole/stem form is buttressed


Tree Size
Bole length is 10-20 m
Tree height is 10-20 m
Tree height is 20-30 m


Blunting Effect
Blunting effect on machining is moderate


Cutting Resistance
Cutting Resistance with dry wood is difficult


Mortising
Easy to mortise


Moulding
Easy to mould


Nailing
Holds nails well
Difficult to nail


Planing
Planes well, to a good finish
Easy to plane


Resistance to Impregnation
Heartwood is permeable


Response to Hand Tools
Easy to Work


Polishing
Satisfactory results


Strength Properties
Density (dry weight) = 31-37 lbs/cu. ft.
Shrinkage, Tangential = very small
Shrinkage, Tangential = small
Shrinkage, Radial = very small
Shrinkage, Radial = small
Shrinkage, Tangential = moderate
Shrinkage, Tangential = fairly large
Shrinkage, Radial = moderate
Max. crushing strength = medium
Hardness (side grain) = soft


Numerical Data
ItemGreenDryEnglish
Density32lbs/ft3
Hardness995lbs
Maximum Crushing Strength39166397psi
Weight3125lbs/ft3
Radial Shrinkage3%
Tangential Shrinkage6%
ItemGreenDryMetric
Density512kg/m3
Hardness451kg
Maximum Crushing Strength275449kg/cm2
Weight496400kg/m3
Radial Shrinkage3%

References
Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research

Dale, I.R., Greenway, P.J.,1961,Kenya Trees and Shrubs,Buchanans Kenya Estates Ltd. Nairobi Hatchards London

Dalziel, J.M.,1937,The Useful Plants of West Tropical Africa,Crown Agents for the Colonies

Irvine, F.R.,1961,Woody Plants of Ghana,O.U.P. London

Keay, R.W.J.,1964,Nigerian Trees Vol.2,Nigeria Federal Department of Forest Research, Ibadan

Patterson, D.N.,1963,The strength of Kenya timbers, their derivation and application,Kenya Forestry Department Research Bulletin,No.23

Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya









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