Ana-tree (Faidherbia albida)
Family: Leguminosae
Common names: Ana-tree, Anaboom, Apple ring acacia, Cad, Ege, Gawo, Gozanga, Haraz, Haraza, Janweo, Kababu, Karage, Kenya acacia, Kyashi, Kyaski, Mapogoro, Mpagoro, Mpogola, Mranda, Muchangwe, Mujeha, Mukababu, Munga, Mungnanunshi, Musangu, Mwiba, Nanda, Puhu-weni, Puhuri-wooni, Umpumpu, Umtungabayeni, White thorn, Winter thorn, Zizano
Distributed in: Israel, Tanzania, Uganda, Zimbabwe (Africa, Oceania and S.E. Asia)
Common uses: Boat building (general), Boxes and crates, Canoes, Carvings, Charcoal, Concrete formwork, Fuelwood, Furniture, Heavy construction, Joinery, Light construction, Oars, Paneling, Posts, Pulp/Paper products, Tool handles, Turnery
Tree size: Trunk diameter is 300-350 cm
Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodWhite, White to yellow.The grain isWavy, the textureCoarse
Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to attack from termites (Isoptera)
LightInduced Color Change: None
Kiln Schedules: Drying (speed) is fast
Drying Defects: Slight end splitting, Slight surface checking
Ease of Drying: Difficult
Blunting Effect: Blunting effect on machining is slight
Cutting Resistance: Cutting resistance with dry wood is variable
Gluing: Easy to glue
Nailing: Difficult to nail, Easy to nail
Planing: Planes well, to a good finish
Resistance to Impregnation: Heartwood is permeable
Response to hand tools: Easy to machine
Routing recessing: Routing is easy
Screwing: Easy to screw
;
Painting: Good; Polishing: Satisfactory; Varnishing: Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
512 |
kg/m3 |
Bending Strength |
461 |
724 |
kg/cm2 |
Crushing Strength |
177 |
310 |
kg/cm2 |
Hardness |
|
500 |
kg |
Impact Strength |
|
55 |
cm |
Shearing Strength |
|
90 |
kg/cm2 |
Stiffness |
75 |
88 |
1000 kg/cm2 |
Tangential Shrinkage |
7 |
|
% |
Radial Shrinkage |
3 |
|
% |
Weight |
496 |
400 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 6569 | 10300 | psi | Density | | 32 | lbs/ft3 | Hardness | | 1103 | lbs | Impact Strength | | 22 | inches | Maximum Crushing Strength | 2519 | 4412 | psi | Shearing Strength | | 1289 | psi | Stiffness | 1074 | 1259 | 1000 psi | Weight | 31 | 25 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 7 | | % | Volumetric Shrinkage | 12 | | % | |
Bending strength (MOR) = low 0 Modulus of Elasticity (stiffness) = very low 1 Max. crushing strength = low 1 Density (dry weight) = 31-37 lbs/cu. ft. 1 Hardness (side grain) = soft Shearing strength (parallel to grain) = low Shrinkage, Tangential = fairly large Toughness-Hammer drop (Impact Strength) = very low Shrinkage, Radial = small Shearing strength (parallel to grain) = very low Shrinkage, Radial = moderate Hardness (side grain) = medium Toughness-Hammer drop (Impact Strength) = low Shrinkage, Volumetric = moderate Shrinkage, Volumetric = fairly large Shrinkage, Tangential = very small Shrinkage, Radial = very small Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = low Bending strength (MOR) = medium Toughness-Hammer drop (Impact Strength) = medium Shrinkage, Tangential = small Shrinkage, Tangential = moderate Max. crushing strength = medium Max. crushing strength (stiffness) = very low Hardness (side grain) = very soft Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 23-30 lbs/cu. ft.
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.48Banks, C.H.,1954,The Mechanical Properties of Timbers with Particular Reference to those,grown in the Union of South Africa,Journal of the South African Forestry Association,No. 24 pp.44-65,[South,African Forestry Journal]Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35Bolza, 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 2Bryce, J.M.,1967,Commercial Timbers of Tanzania,Tanzanian Forestry Division Util. Sec. MoshiEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaFanshawe, D.B.,1962,Fifty Common Trees of Northern Rhodesia,Natural Resources Board and Forestry Department, NdolaForest Products Research Laboratory, U.K.,1968,Report on 2 consignments of Haraz - Acacia albida - from the Republic,Sudan,Forest Products Research Laboratory, Princes Risborough, Building Research,Establishment Reports on Overseas Timbers,No.10Giffard, P.L.,1971,Recherches complementaires sur Acacia albida (Del.,Bois et Forets des Tropiques,No.135,pp3-20Goldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Irvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKeay, R.W.J.,1964,Nigerian Trees Vol.2,Nigeria Federal Department of Forest Research, IbadanMcCoy-Hill, M.,1954,Timbers of Tanganyika - Bussei (Entandrophragma bussei) and Mranda (Acacia,albidia,Timber Technology,62(2186,p602Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Nigeria Department of Forest Research,1967,The Properties of Some Savanna Timber Trees,Nigeria Federal Department of Forest Research, Ibadan Report, No.11Pardy, A.A.,1953,Notes on Indigenous Trees and Shrubs of S. Rhodesia - Acacia albida,Ministry of Agriculture and Lands S. Rhodesia,Bulletin,No.1728Sallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.Scott, M.H.,1935,Weights of South African Growth Timbers,South African Department of Agriculture and Forestry Bulletin,No.145,Forest Products Institute, Forestry Series No.1Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Tanzania Forest Department,1960,The Natural Durability of Local Timbers,Tanzanian Forest Dept. Tech. Note,No.14Tanzania Forest Department,1967,Acacia albida (Kababu,Tanzania Forest Div. Util. Sect. Moshi - Timbers of TanganyikaWest, O.,1950,Indigenous Tree Crops for Southern Rhodesia,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1520White, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. London
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