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Blunting Effect
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Ease of Drying
Family Name
Gluing
Grain
Heartwood Color
Kiln Drying Rate
Kiln Schedules
Light-Induced Color Change
Movement in Service
Nailing
Natural Durability
Natural Growth Defects
Numerical Data
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Resistance to Splitting
Response to Hand Tools
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Synonyms
Texture
Toxicity
Trade Name
Tree Identification
Tree Size
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Synonyms
Albizia angolensis, Albizzia corbisieri
Common Names
Albizzia, Aviemfo-samina, Awiafu-samina, Awiemfo-samina, Awienfosamina, Ayinre, Ayinre - ogo, Elongwamba, Evuvus, Iatandza, Kulo, Latandza, Muchole, Musase, Newei, Nongo, Okuro, Sakachi, Sama tenyo, Samba tene, Sifou-sifou, Tanga tanga, West African albizia, Yatandza, Zazangue
Regions of Distribution
Africa
Countries of Distribution
[VIEW MAP]
Angola, Cameroon, Congo, Gambia, Ghana, Ivory Coast, Liberia, Nigeria, Senegal, Sierra Leone, Uganda, Zaire
Common Uses
Boat building (general), Boxes and crates, Cabinetmaking, Canoes, Carvings, Flooring, Furniture, Heavy construction, Joinery, Light construction, Millwork, Mine timbers, Model airplanes, Moldings, Plywood, Poles, Posts, Railroad ties, Turnery, Vehicle parts
Heartwood Color
| Brown |
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| Purple |
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| Yellow |
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| Black |
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| Red |
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| Orange |
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| Dark brown |
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| Brown |
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| Yellow to golden-yellow to orange |
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| Reddish brown |
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| Purple |
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Sapwood Color
| White |
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| Yellow |
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| Brown |
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| Green/Grey |
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| Pink |
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| White to yellow |
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| Clearly differentiated from the heartwood |
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| Pinkish |
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| Paler than heartwood |
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Grain
| Interlocked |
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| Figure |
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| Even |
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| Other (figure) |
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| Distinct (figure) |
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| Straight |
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| Stripe (figure) |
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| Interlocked |
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| Other figure |
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| Distinct figure |
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| Striped figure |
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| Generally straight, but not always |
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Texture
Natural Growth Defects
| Whitish deposits in vessels |
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| Gum and mineral deposits |
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Natural Durability
| Susceptible to insect attack |
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| Non-resistant to powder post beetles |
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| Resistant to termites |
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| Durable |
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| Very durable |
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| Moderately durable |
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| Susceptible to attack from powder post (Lyctid & Bostrychid) beetles |
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| Resistant to attack from termites (Isoptera) |
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| Very durable |
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| Durable |
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| Pinworms (ambrosia beetles) are commonly present |
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| Moderately resistant to termite (Isoptera) attack |
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| Susceptible to wood staining fungal attack |
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| Moderately durable |
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Light-Induced Color Change
Toxicity
| Some toxic effects |
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| Unspecified toxicity |
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| Respiratory effects |
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Kiln Schedules
| Dry at a slow speed |
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| Uk=F US=T6D4/T3D3 Fr=6 |
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Ease of Drying
Kiln Drying Rate
Tree Identification
| Bole/stem form is not buttressed |
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| Bole/stem form is straight |
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| Bole/stem form is fluted |
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| Bole/stem form is cylindrical |
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| Bole/stem form is buttressed |
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Tree Size
| Tree height is 40-50 m |
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| Bole length is 10-20 m |
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| Tree height is 30-40 m |
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| Trunk diameter is 100-150 cm |
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| Bole length is 20-30 m |
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| Tree height is 10-20 m |
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Comments
General finishing qualities are rated as good
Blunting Effect
| Moderate |
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| Little |
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| Blunting effect on sawing dry wood is moderate |
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| Blunting effect on machining is slight |
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Cutting Resistance
| Easy to saw |
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| Fairly Difficult to Very Difficult to saw |
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| Cutting Resistance with dry wood is easy |
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| Difficult to saw |
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| Cutting Resistance with green wood is easy |
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Gluing
| Fairly Easy to Very Easy |
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| Easy to glue |
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Movement in Service
| Excellent Stability - Small Movement |
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| Small |
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Nailing
| Fairly Easy to Very Easy |
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| Easy to nail |
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Planing
| Fairly Easy to Very Easy |
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| Fairly Difficult to Very Difficult |
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| Easy to plane |
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| Difficult to plane |
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Resistance to Impregnation
| Resistant heartwood |
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| Resistant sapwood |
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| Permeable sapwood |
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| Heartwood is resistant |
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| Sapwood is permeable |
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Resistance to Splitting
Response to Hand Tools
| Easy to Work |
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| Fairly Difficult to Difficult to Work |
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| Easy to machine |
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| Moderate working qualities |
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Screwing
| Fairly Easy to Very Easy |
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| Easy to screw |
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Steam Bending
| Fair to Good Results |
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| Moderate |
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Polishing
| Fair to Good Results |
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| Poor to Very Poor Results |
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| Very Good to Excellent Results |
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| Satisfactory results |
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| Good results |
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| Poor results |
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Staining
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Finish is generally good |
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Strength Properties
| Bending strength (MOR) = medium |
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| Max. crushing strength = high |
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| Shrinkage, Radial = small |
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| Shrinkage, Tangential = small |
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| Hardness (side grain) = soft |
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| Density (dry weight) = 38-45 lbs/cu. ft. |
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| Shrinkage, Tangential = very small |
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| Modulus of Elasticity (stiffness) = low |
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| Bending strength (MOR) = low |
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| Shrinkage, Volumetric = small |
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| Shrinkage, Radial = very small |
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| Modulus of Elasticity = moderate |
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| Density (dry weight) = 31-37 lbs/cu. ft. |
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| Shrinkage, Volumetric = moderate |
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| Modulus of Elasticity (stiffness) = very low |
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| Bending strength (MOR) = high |
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| Density (dry weight) = 46-52 lbs/cu. ft. |
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| Density (dry weight) = 23-30 lbs/cu. ft. |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 9006 | 14056 | psi |
| Density | | 37 | lbs/ft3 |
| Hardness | | 995 | lbs |
| Maximum Crushing Strength | 5522 | 8307 | psi |
| Shearing Strength | | 1425 | psi |
| Stiffness | 1385 | 1604 | 1000 psi |
| Weight | 36 | 29 | lbs/ft3 |
| Radial Shrinkage | 3 | | % |
| Tangential Shrinkage | 5 | | % |
| Volumetric Shrinkage | 9 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 633 | 988 | kg/cm2 |
| Density | | 592 | kg/m3 |
| Hardness | | 451 | kg |
| Maximum Crushing Strength | 388 | 584 | kg/cm2 |
| Shearing Strength | | 100 | kg/cm2 |
| Stiffness | 97 | 112 | 1000 kg/cm2 |
| Weight | 576 | 464 | kg/m3 |
| Radial Shrinkage | 3 | | % |
| Tangential Shrinkage | 5 | | % |
References
Banks, C.H. and J.P. Schoeman. 1963. Railway Sleeper and Crossing Timbers. Bulletin No. 41, Republic of South Africa. The Government Printer, Pretoria, South Africa.
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.48
Bois et Forets des Tropiques,1955,Sifou-Sifou (Albizzia ferruginea,Bois et Forets des Tropiques,No.41, p54
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
Eggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe Uganda
Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry Department
Farmer, R.H.,1972,Handbook of Hardwoods,HMSO
Fernando, X.M.,1956,Notes on Ceylon Timbers,Ceylon Forester (N.S.,2(3,pp131-8
Fouarge, J.,1950,Appropriation de Bois Congolais aux Besoins de la Metropole,I.N.E.A.C. Belgium Serie Technique,No.38
Fouarge, J.,1953,Bois du Congo,I.N.E.A.C.
France - 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. France
France - C.T.F.T.,1965,Sifou-Sifou,C.T.F.T.,Information Technique,No.137
Ghana - Timber Marketing Board,1969,Ghana Hardwoods,Timber Marketing Board
Gotz, E.,1983,Timber trees of the Gambia,Stiftung Walderhaltung in Afrika and Bundesforschungsanstalt fur Forst-,und Holzwirtschaft
Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished data
Irvine, F.R.,1961,Woody Plants of Ghana,O.U.P. London
Kinloch, D., Miller, W.A.,1949,Gold Coast Timbers,Govt. Printer Gold Coast
Kryn, J.M., Forbes, E.W.,1959,The Woods of Liberia,U.S.A. Department of Agriculture,Forest Products Laboratory, Madison,,Report No. 2159
Kukachka, B.F.,1970,Properties of Imported Tropical Woods,Forest Research Paper FPL 125
Lebacq, L., Dechamps, R.,1967,Contribution a un Inventaire de Forets du Nord-kasai,Musee Royal de L'Afrique Centrale Belgium Annals Series 8 No.5
Pieters, A.,1977,Essences Forestieres du Zaire,R.U.G. Gent Belguim
Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.T
Sallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.
Spalt, H.A., Stern, W.L.,1956,Survey of African woods 1,Tropical Woods,115(105,pp 13-38
Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7
Wood, B., Calnan, D.,1976,Toxic Woods,British Journal of Dermat 94 Suppl. 13
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