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Cordyla (Cordyla africana)
Family: Leguminosae Common names: Bunguru, Cordyla, Deki, Dimb, Dimbu, Doda, Douto, Dugura, Duguto, Duki, Dura, Duto, Mbachanga, Metondo, Mgwata, Mnyungwinyungwi, Mpachamu, Mroma, Mtigonzi, Mtondo, Mufondo, Mukumari, Mumbwe, Mutondo, Nar, Ndimbu, Ntondo, Wankore, wella kono duto, Wild mango Distributed in: Congo, Guinea, Kenya, Malawi, Mozambique, Nigeria, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe (Africa) Distribution overview: Locally common in riparian and swamp forests throughout northern and eastern Tanzania. Common uses: Agricultural implements, Boat building (general), Bridge construction, Building construction, Building materials, Cabin construction, Cabinetmaking, Carvings, Construction, Crossties, Factory construction, Flooring, Furniture, Heavy construction, Joinery, Millwork, Mine timbers, Musical instruments, Paneling, Poles, Posts, Railroad ties, Vehicle parts, Wheel spokes, Wheels Environment profile: Status unknown in many of its growth areas Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodPaler than heartwood, White to yellow.The grain isWavy, the textureMedium to coarseand the lusterMedium
Natural durability: Susceptible to marine borer attack, Very durable Odor: No specific smell or taste Silica Content: Siliceous Kiln Schedules: Drying (speed) is fast Drying Defects: Slight surface checking, Slight twist/warp Ease of Drying: Reconditioning Treatement Tree Identification: Bole/stem form is not buttressed Blunting Effect: Slight Boring: Good results Carving: Fairly Easy to Very Easy
Cutting Resistance: Moderate to saw Gluing: Fair to Good Results Mortising: Finishes well Moulding: Good finishing Movement in Service: Good finishing Nailing: Fairly Easy to Very Easy, Pre-boring recommended Planing: Reduction of cutting angle recommended Resistance to Impregnation: Sapwood is permeable Response to hand tools: Poor response Routing recessing: Routing is easy Sanding: Good sanding finish
Screwing: Pre-boring recommended
; Turning: Poor results
Polishing: Satisfactory; Varnishing: Good;
Bending strength (MOR) = low Density (dry weight) = 46-52 lbs/cu. ft. Modulus of Elasticity (stiffness) = low Max. crushing strength = high Shrinkage, Tangential = fairly large Shrinkage, Radial = fairly large Max. crushing strength = medium Hardness (side grain) = medium Hardness (side grain) = hard Density (dry weight) = 53-60 lbs/cu. ft. Shrinkage, Tangential = large Shrinkage, Radial = large Shearing strength (parallel to grain) = medium Bending strength (MOR) = medium Shrinkage, Tangential = moderate Shearing strength (parallel to grain) = low Modulus of Elasticity (stiffness) = very low Very heavy Shrinkage, Volumetric = fairly large Shrinkage, Radial = moderate Resists denting and marring Modulus of Elasticity (stiffness) = medium Density = high Density (dry weight) = 61-67 lbs/cu. ft. Compression strength (parallel to grain) = high Bending strength (MOR) = high 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.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. MoshiCardoso, J.G.A.,1969,Madeiras de Mocambique 11 - Cordyla africana,Servicos de Agricultura Mocambique,Publ. Serie A,No.23Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Ferreirinha, M.P.,1955,Catalogo des Madeiras de Mocambique (pt 1,Min. do Ultramar Junta Invest. do Ultranar Memorias Serie Botanica, 2Fortin, Y., Poliquin, J.,1976,Natural Durability and Preservation of 100 Tropical African Woods,International Development Research Centre, CanadaGoldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Grant, D.K.S.,1934,Some Local Timbers,Tanzania Forest DepartmentKeay, R.W.J.1989. Trees of Nigeria.Revised Version of Nigerian Trees. Clarendon Press, Oxford.Kloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12McCoy-Hill, M.,1956,Timbers of Tanganyika - Mfurangi, Mfuranji and Mroma,Timber Technology,64(2204, p305Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Organisation for European Economic Co-operation,1951,African Tropical Timber (Nomenclature, Description,OEECPardy, A.A.,1954,Notes on Indigenous Trees and Shrubs of S. Rhodesia - Cordyla africana,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1759Portugal - Min. do Ultramar,1956,Essencias Florestais da Guine Portuguesa,Min. do Ultramar Jardin e Museu Agriccola do UltramarSousa, A.G.E.,1966,Dendrologia de Mocambique (2vols,Inst. de Invest. Agronomica de MocambiqueTakahashi, 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 Division,1966,Cordyla africana (mroma,Tanzania Forest Div. Util. Sec. Moshi - Timbers of TanganyikaWhite, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. LondonWimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya |
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