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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

Wood Image 1

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
ItemGreenDryEnglish
Bending Strength1712224667psi
Density58lbs/ft3
Maximum Crushing Strength68999945psi
Weight5752lbs/ft3
Radial Shrinkage5%
Tangential Shrinkage8%
ItemGreenDryMetric
Bending Strength12031734kg/cm2
Density929kg/m3
Maximum Crushing Strength485699kg/cm2
Weight913833kg/m3
Radial Shrinkage5%

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









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