Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Comments Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Family Name Gluing Grain Heartwood Color Nailing Natural Durability Numerical Data Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sapwood Color Scientific Name Strength Properties Texture Trade Name Tree Identification Tree Size		Scientific Name Tessmannia africana Trade Name Banke Family Name Caesalpiniaceae Common Names Banke, Kamalufu, Kasase-sase, Kasasesase, Musase, Nkaga, Nom esingang, Waka, Wamba kakele Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Cameroon, Congo, Gabon Common Uses Agricultural implements, Boat building (general), Decks, Flooring, Handles: woodworking tools, Heavy construction, Joinery, Millwork, Mine timbers, Posts, Railroad ties, Vehicle parts Heartwood Color Reddish brown Sapwood Color White to yellow Different than heartwood Grain Straight Even Interlocked Figure Distinct (figure) Straight Interlocked Distinct figure Texture Medium Fine Fine Fine to medium Natural Durability Durable Moderately durable Non-resistant to powder post beetles Susceptible to insect attack Resistant to attack from termites (Isoptera) Very durable Durable Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Resistant to attack from powder post (Lyctid & Bostrychid) beetles Drying Defects Slight end splitting Tree Identification Bole/stem form is not buttressed Bole/stem form is straight Bole/stem form is cylindrical Bole/stem form is buttressed Tree Size Tree height is 30-40 m Comments General finishing qualities are rated as satisfactory Cutting Resistance Cutting Resistance with green wood is difficult Cutting Resistance with dry wood is difficult Gluing Easy to glue Nailing Easy to nail Planing Easy to plane Planes well, to a good finish Resistance to Impregnation Sapwood is moderately resistant Heartwood is extremely resistant Response to Hand Tools Easy to machine Polishing Satisfactory results Strength Properties Bending strength (MOR) = very high Shrinkage, Tangential = moderate Shrinkage, Tangential = large Shrinkage, Tangential = fairly large Shrinkage, Radial = small Shrinkage, Radial = moderate Shrinkage, Radial = large Shrinkage, Radial = fairly large Max. crushing strength = high Density (dry weight) = >75 lbs/cu. ft Density (dry weight) = 67-75 lbs/cu.ft Density (dry weight) = 61-67 lbs/cu. ft Density (dry weight) = 53-60 lbs/cu. ft Shrinkage, Tangential = small Bending strength (MOR) = medium Bending strength (MOR) = high Numerical Data Item Green Dry English Bending Strength 17122 24667 psi Density 58 lbs/ft3 Maximum Crushing Strength 6899 9945 psi Weight 57 52 lbs/ft3 Radial Shrinkage 5 % Tangential Shrinkage 8 % Item Green Dry Metric Bending Strength 1203 1734 kg/cm2 Density 929 kg/m3 Maximum Crushing Strength 485 699 kg/cm2 Weight 913 833 kg/m3 Radial Shrinkage 5 % 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 Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry Department Fouarge, J.,1953,Bois du Congo,I.N.E.A.C. Ghosh, D.P., Gupta, P.G.,1969,Influence of steaming on subsequent drying of green and refractory,hardwood,Indian Forestry Bulletin (N.S.) wood seasoning No. 257, Dehra Dun, India Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished data 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 Saint-Aubin, G. de,1963,La Foret du Gabon,CTFT Publ., No.21