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Blunting Effect Boring Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Family Name Gluing Grain Heartwood Color Kiln Drying Rate Kiln Schedules Mortising Moulding 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 Staining Steam Bending Strength Properties Synonyms Texture Trade Name Tree Identification Turning Varnishing Veneering Qualities		Scientific Name Pericopsis angolensis Trade Name Afromosia Family Name Leguminosae Synonyms Ormosia angolensis, Afrormosia angolensis Common Names Afromosia, Chianga, Chiwanga, East African afrormosia, Mbanga, Mmanga, Muanga, Mubamku, Muvanga, Muwanga, Mwanga, Umbanga Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Central African Republic, Tanzania, Zaire, Zimbabwe Common Uses Agricultural implements, Boat building (general), Boxes and crates, Cabinetmaking, Canoes, Carvings, Charcoal, Decks, Flooring, Flooring: commercial heavy traffic, Fuelwood, Furniture, Heavy construction, Joinery, Light construction, Marine construction, Millwork, Mine timbers, Musical instruments, Plywood, Poles, Posts, Railroad ties, Sporting Goods, Tool handles, Turnery, Vats, Vehicle parts, Veneer: decorative, Wheel spokes, Wheels Heartwood Color Black Brown Pale brown Greenish to greyish Dark brown Yellow to golden-yellow to orange Brown Black Sapwood Color Green/Grey Brown White to yellow Well defined Grain Interlocked Distinct (figure) Figure Even Straight Interlocked Distinct and very fine figure Straight Texture Even or uniform Fine Uniform Resinous and oily Fine to medium Medium Fine Natural Growth Defects Gum and mineral deposits Natural Durability Durable Very durable Resistant to attack from termites (Isoptera) Resistant to attack from marine borers Resistant to attack from powder post (Lyctid & Bostrychid) beetles Kiln Schedules Dry at a slow speed Kiln Drying Rate (in days) is rapid UK=J US=T10D5S/T8D4S Fr=4 Dry at a moderate speed Drying Defects Slight surface checking Ease of Drying Easy Kiln Drying Rate Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm) Tree Identification Bole/stem form is unknown Bole/stem form is not buttressed Blunting Effect Blunting effect on machining is severe Boring Easy Cutting Resistance Cutting Resistance with dry wood is difficult Gluing Easy to glue Mortising Easy to mortise Moulding Good finishing results Easy to mould Movement in Service Fair to Good Stability - Medium Movement Medium Stable Nailing Difficult to nail Possible if prebored Planing Planes well, to a good finish Difficult to plane Easy to plane Resistance to Impregnation Resistant sapwood Resistant heartwood Heartwood is extremely resistant Resistance to Splitting Very Poor Response to Hand Tools Difficult to machine Turning Good results Easy to turn Veneering Qualities Veneers easily Suitable for peeling Veneers moderately easy Steam Bending Moderate Polishing Satisfactory results Good results Staining Finish is generally satisfactory Varnishing Good results Strength Properties Shrinkage, Tangential = very small Shrinkage, Radial = very small Modulus of Elasticity (stiffness) = medium High Mor/Bending strength = medium Hardness (side grain) = hard 53-60 lbs/cu. ft. 53-60 lbs/cu. ft. Shearing strength (parallel to grain) = high Medium Density (dry weight) = 61-67 lbs/cu. ft. Density (dry weight) = 61-67 lbs/cu. ft. Very hard Toughness-Hammer drop (Impact Strength) = low Medium Max. crushing strength = very high Low Low High 46-52 lbs/cu. ft. 46-52 lbs/cu. ft. Very high Small 38-45 lbs/cu. ft. 38-45 lbs/cu. ft. Numerical Data Item Green Dry English Bending Strength 9547 14879 psi Density 54 lbs/ft3 Hardness 2524 lbs Impact Strength 34 inches Maximum Crushing Strength 7596 10755 psi Shearing Strength 2384 psi Stiffness 1665 1923 1000 psi Weight 53 43 lbs/ft3 Radial Shrinkage 2 % Tangential Shrinkage 4 % Item Green Dry Metric Bending Strength 671 1046 kg/cm2 Density 865 kg/m3 Hardness 1144 kg Impact Strength 86 cm Maximum Crushing Strength 534 756 kg/cm2 Shearing Strength 167 kg/cm2 Stiffness 117 135 1000 kg/cm2 Weight 849 689 kg/m3 Radial Shrinkage 2 % References 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 Banks, 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 et Forets des Tropiques,1978,Kosipo - Entandrophragma candollei,Bois et Forets des Tropiques No.181,pp29-40 Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35 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 Bryce, J.M.,1967,Commercial Timbers of Tanzania,Tanzanian Forestry Division Util. Sec. Moshi Duff, C.E.,1944,Termite Resistance Test on the Copperbelt of Northern Rhodesia,Empire Forestry Journal,23(2,pp160-2 Fanshawe, D.B.,1962,Fifty Common Trees of Northern Rhodesia,Natural Resources Board and Forestry Department, Ndola Ferreirinha, M.P.,1955,Catalogo des Madeiras de Mocambique (pt 1,Min. do Ultramar Junta Invest. do Ultranar Memorias Serie Botanica, 2 Goldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9 Marshall, R.C.,1939,Silviculture of the trees of Trinidad and Tobago - British West Indies,O.U.P.,London McCoy-Hill, M.,1955,Timbers of Tanganyika - Afrormosia and East African Mahogany,Timber Technology,63(2196, pp538-9 Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi. Pardy, A.A.,1952,Notes on Indigenous Trees and Shrubs of S. Rhodesia - Afrormosia,angolensis,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1675 Storrs, A.E.G.,1979,Know your Trees - Some of the Common Trees found in Zambia,Zambia Forestry Department, Ndola 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 Tanzania Forest Department,1960,The Natural Durability of Local Timbers,Tanzanian Forest Dept. Tech. Note,No.14 Tanzania Forest Department,1966,Flooring Timbers,Tanzania Forest Div. Util. Sec. Moshi - Timbers of Tanganyika Tanzania Forest Division,1966,Afrormosia angolensis (East African Afrormosia - Mbanga,Tanzania Forest Div. Util. Sec. Moshi - Timbers of Tanganyika Tanzania Forest Division,1966,Kiln Drying Schedules for Tanzania Timbers Technical Note no.38,Tanzania Forest Div. Util. Sec. Moshi White, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. London