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BlackbeanBlackbean
Blackbean (Castanospermum australe)

Family: Leguminosae

Common names: Bean tree, Beantree, Black bean, Blackbean, Moreton Bay bean, Moreton Bay chestnut

Distributed in: Australia, India, Malaysia, Sri Lanka, Vanuatu (Oceania and S.E. Asia)

Distribution overview: This Australian species is distributed sparsely in New South Wales and Queensland, Australia. It lives in forests with very high annual rainfall.

Common uses: Bedroom suites, Bent Parts, Blockboard, Boat building (general), Boxes and crates, Cabinetmaking, Carvings, Chairs, Chests, Concealed parts (Furniture), Cutting surfaces, Decorative veneer, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Excelsior, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Inlay work, Joinery, Kitchen cabinets, Living-room suites, Musical instruments, Office furniture, Ornamental work , Paneling, Plywood, Poles, Radio - stereo - TV cabinets, Rustic furniture, Sporting Goods, Stools, Tables , Toys, Turnery, Utility furniture, Vehicle parts, Veneer, Veneer: decorative, Walking sticks, Wardrobes

Product sources: Lumber is available from sources in Australia, and veneers can be purchased at very expensive prices.

Environment profile: The environmental status of this species within its geographical boundaries has not been officially determined

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isPurple, Redand the sapwoodWhite to yellow, Yellow.The grain isVery fine, the textureUnevenand the lusterMedium

Natural durability: Very durable, Very durable

Odor: No specific smell or taste

LightInduced Color Change: Darker

Kiln Schedules: Kiln Drying Rate (in days) is rapid

Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)

Drying Defects: Slight twist/warp, Splitting

Ease of Drying: Requires care and special attention

Tree Identification: Bole/stem form is not buttressed

Comments: General finishing qualities are rated as good The species is described as an ornamental as well as a valuable source of timber. The green seeds are poisonous to livestock.

Blunting Effect: Little

Boring: Easy

Carving: Good carving qualities

Cutting Resistance: The timber saws well, but mineral content is reported to make it somewhat difficult to cut with ordinary tools

Gluing: Fairly Easy to Very Easy

Mortising: Good mortising properties

Moulding: Good moulding properties

Movement in Service: Good moulding properties

Nailing: Satisfactory nailing properties, Very Good to Excellent

Planing: Very Good to Excellent

Resistance to Impregnation: Sapwood is moderately resistant

Response to hand tools: Variable qualities

Routing recessing: Good in both routing and recessing.

Sanding: Fair sanding qualities

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Poor

Screwing: Good screw holding properties, Very Good to Excellent Results; Turning: Very good

Polishing: Very Good to Excellent; Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,64
Density 721 kg/m3
Bending Strength 654 1024 kg/cm2
Crushing Strength 485 699 kg/cm2
Hardness 752 kg
Impact Strength cm
Shearing Strength 109 kg/cm2
Stiffness 134 155 1000 kg/cm2
Tangential Shrinkage 7 %
Radial Shrinkage 3 %
Weight 705 560 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9310 14566 psi
Density 45 lbs/ft3
Hardness 1658 lbs
Maximum Crushing Strength 6899 9945 psi
Shearing Strength 1560 psi
Stiffness 1916 2208 1000 psi
Specific Gravity 0.64
Weight 44 35 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 7 %
Volumetric Shrinkage 15 %

Density (dry weight) = 46-52 lbs/cu. ft.
Shrinkage, Radial = very small
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = very small
Shrinkage, Tangential = fairly large
Shearing strength (parallel to grain) = low
Max. crushing strength = high
Hardness (side grain) = medium
Bending strength (MOR) = medium
Weight = heavy
Shrinkage, Volumetric = large
Shrinkage, Tangential = small
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Radial = large
Modulus of Elasticity (stiffness) = medium
Modulus of Elasticity (stiffness) = high
The wood is high in density

Anderson, R.H.,1947,The Trees of New South Wales,New South Wales Department of AgricultureAudas, J.W.,Native Trees of Australia,Whitcombe & Tombs PTY. LtdAustralia - Forest Products Newsletter,1961,Properties of Australian timbers - Blackbean,Australia C.S.I.R.O. Division of Forest Products Newsletter 279Australia - N.S.W. Forestry Commission,1988,Furniture Timbers of New South Wales,Forest Commission, N.S.W., Aust. Tech. Publication No.1Boas, I.H.,1947,The Commercial Timbers of Australia - Their Properties and Uses,Council for Scientific and Industrial Research, MelbourneBolza, E.,1976,Timber and Health,Div. Building Res. C.S.I.R.O. AustraliaCause, M.L.; Rudder, E.J. and Kynaston, W.T.,1989,Queensland Timbers Their Nomenclature, Density, and Lyctid Susceptability,Queensland Department of Forestry, Technical Pamplet No.2Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Corner, E.J.H.,1941,Further notes on Moreton Bay chestnut,M.A.H.A. Magazine 11(4) pp151-4Eddowes, P.J. 1977. Commercial Timbers of Papua New Guinea - Their Properties and Uses. Forest Products Research Center, Office of Forests, Department of Primary Industry, Papua New Guinea.Farmer, R.H.,1972,Handbook of Hardwoods,HMSOFrancis, W.D.,1951,Australian Rain-forest Trees,Commonwealth of Australia - Forestry and Timber BureauGay, F.J., Et al,1955,Standard laboratory colonies of termites for evaluating the resistance of,timber, timber preservatives and other materials to termite attack.,C.S.I.R.O., Australia Bulletin,No.277Harrar, E.S.,1942,Some Physical Properties of Modern Cabinet Woods 3. Directional and Volume,Shrinkage,Tropical Woods,9(71, pp26-32Hearne, D.A.,1975,Trees for Darwin and Northern Australia,Australian Government Publishing Service, CanberraI.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer CuttingJackson, A. and D. Day.1991.Good Wood Handbook - The Woodworker's Guide to Identifying, Selecting and Using the Right Wood.Betterway Publications, Cincinnati, Ohio.Jane, F.W.,1954,The Structure of World Timbers 27 Iroko - Fustic - Black Bean,Timber Technology,62(2186, pp603-5Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1Kingston, R.S.T., Risdon, C.J.E.,1961,Shrinkage and Density of Australian and other South-West Pacific Woods,C.S.I.R.O. Division of Forest Products Technological Paper No.13Kline, M. 1983. Castanospermum australe - Blackbean. In A Guide to Useful Woods of the World. Flynn Jr., J.H., Editor. King Philip Publishing Co., Portland, Maine. 1994. Page 94-95.Limaye, V.D. and B.R. Sen. 1956. Weights and Specific Gravities of Indian Woods. Indian Forest Records (New Series). Timber Mechanics. Volume 1 No. 4. Manager of Publications (Publisher, Delhi.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.Monsalud, M.R., Tamolang, F.N.,1969,General Information on Philippine hardwoods,Philippine Lumberman 15(6) pp14-38, 15(7) pp46-72Patterson, D.,1988,Commercial Timbers of the World, 5th Edition,Gower Technical PressRendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonSarlin,1950,Le for￿et le sol du Nord de Santo (Nouvelles Hebrides,Bois et Forets des Tropiques,13Sekhar, A.C., Bhatia, D.N.,1957,Physical and Mechanical Properties of Woods Tested at Forest Research,Institute. Report VIII,Indian Forest Records (n.s) Timber Mechanics 1(9) pp155-62Timber Development Association Ltd.,1955,World Timbers (3 Vols.,Timber Development Association Ltd.Williams, E.,1958,Timbers of New South Wales - Black Bean,New South Wales Forestry Commission, Division of Wood Technology Technical,Notes 11(1-2)Wood, B., Calnan, D.,1976,Toxic Woods,British Journal of Dermat 94 Suppl. 13
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