Balsam tree (Colophospermum mopane)
Family: Leguminosae
Common names: Balsam tree, Butterfly tree, Chanate, Iphane, Kapalamamba, Lipani, Lupanye, M'sano, Messanha, Moopaani, Mopaani, Mopane, Mopani, Mupane, Musania, Musaru, Musharo, Mwane, Mwani, Rhodesian ironwood, Sanya, Shanatsi, Turpentine tree
Distributed in: Angola, Botswana, India, Namibia, South Africa, Zambia, Zimbabwe (Africa, Oceania and S.E. Asia)
Common uses: Agricultural implements, Bearings & bushings, Boat building (general), Boxes and crates, Carvings, Charcoal, Chemical derivatives, Flooring, Fuelwood, Furniture, Handles: general, Heavy construction, Joinery, Light construction, Mine timbers, Piling, Poles, Posts, Railroad ties, Sporting Goods, Tool handles, Turnery, Vehicle parts, Wheels
Tree size: Trunk diameter is 150-200 cm
Colors: the heart isRed, Reddish brownand the sapwoodWell defined, White to yellow.The grain isInterlocked, the textureMedium to coarseand the lusterMedium
Natural durability: Very durable, Very durable
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Moderate surface checking, Splitting
Ease of Drying: Rapidly
Blunting Effect: Blunting effect in dry wood is severe
Boring: Fairly difficult to very difficult
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Fairly Difficult to Very Difficult
Nailing: Difficult to nail, Possible if prebored
Planing: Very Good to Excellent
Resistance to Impregnation: Heartwood is extremely resistant
Resistance to Splitting: Very Poor
Response to hand tools: Fairly Difficult to Difficult to Work
Polishing: Fair to Good; Varnishing: Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
|
|
|
|
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
1041 |
kg/m3 |
Bending Strength |
804 |
1248 |
kg/cm2 |
Crushing Strength |
485 |
699 |
kg/cm2 |
Hardness |
|
1333 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
177 |
kg/cm2 |
Stiffness |
123 |
142 |
1000 kg/cm2 |
Tangential Shrinkage |
6 |
|
% |
Radial Shrinkage |
3 |
|
% |
Weight |
1025 |
897 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
| | | | Item | Green | Dry | English | Bending Strength | 11442 | 17761 | psi | Density | | 65 | lbs/ft3 | Hardness | | 2940 | lbs | Maximum Crushing Strength | 6899 | 9945 | psi | Shearing Strength | | 2525 | psi | Stiffness | 1762 | 2031 | 1000 psi | Weight | 64 | 56 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 6 | | % | Volumetric Shrinkage | 6 | | % | |
Density (dry weight) = >75 lbs/cu. ft Density (dry weight) = 67-75 lbs/cu.ft Density (dry weight) = 61-67 lbs/cu. ft Max. crushing strength = high Shrinkage, Volumetric=very small Shrinkage, Tangential = very small Shrinkage, Tangential = fairly large Shrinkage, Radial = very small Shrinkage, Radial = moderate Shearing strength (parallel to grain) = medium Shearing strength (parallel to grain) = high Modulus of Elasticity (stiffness) = low Modulus of Elasticity (stiffness) = high Hardness (side grain) = very hard Bending strength (MOR) = medium Bending strength (MOR) = high
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.48Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchChalk, L., et al,1932,Some East African Coniferae and Leguminosae,Forest Trees and Timbers of the British Empire,Part 1Fanshawe, D.B.,1962,Fifty Common Trees of Northern Rhodesia,Natural Resources Board and Forestry Department, NdolaFerreirinha, M.P.,1955,Catalogo des Madeiras de Mocambique (pt 1,Min. do Ultramar Junta Invest. do Ultranar Memorias Serie Botanica, 2Goldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Nation Research Council,1980,Firewood Crops Shrub and Tree Species for Energy Production,National Academy of Sciences, Washington D.C.Palgrave, K.C.,1977,Trees of Southern Africa,Cape Town South AfricaPardy, A.A.,1953,Notes on Indigenous Trees and Shrubs of S. Rhodesia -,Colophospermum,mopane,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1711Scott, 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.1Scott, M.H.,1950,Notes on the more Important African Timbers Imported into the Union with,Special Ref. to Port. E.A. Species,Journal of the South African Forestry Association,No.19,pp18-62,[South,African Forestry Journal]Sim, T.R.,1921,Native Trees of South Africa,Union of South Africa Department of Mines and Industries Memoir No.3Storrs, A.E.G.,1979,Know your Trees - Some of the Common Trees found in Zambia,Zambia Forestry Department, NdolaTimber Information Assoc. Ltd.,1947,Notes on East African Timbers,TRADA, Timber Information, No.28White, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. London
|