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Ditta 5
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Batai
Batai (Albizia falcataria)

Family: Leguminosae

Common names: Albizzia, Bae, Batai, Celon sau, Ceylon sau, Jeungjing, Kayu machis, Molaccana-koroi, Molucca, Molucca albizzia, Moluccan sau, Moluccana koroi, Puah, Rare, Ratamara, Seka, Selawaku, Selawaku merah, Selawoku, Sengon laut, Sika, Sika bot, Sikas, Solomon Islands albizia, Tawa sela, Tawa selia, Tedehu dute, Wahogen, Wahogon, Wai, White albizia, White albizzia, Wikkie

Distributed in: Bangladesh, Hawaii [US], Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands (Oceania and S.E. Asia)

Distribution overview: Native to the eastern islands of the Indonesian archipelago (Moluccas) and New Guinea, this species has been spread to Southeast Asia from Burma to the Philippines, and introduced locally in tropical Africa and America. It seems to thrive on many soils, alluvial soils, laterites, sandy mining soil, and white sands. Ranging from Subtropical Moist to Wet through Tropical Moist to Wet Forest Life Zones, probably tolerates annual precipitation of 20 to 45 dm and annual temperature of 20 to 28￿C.In Hawaii the tree is planted as both an ornamental and a forest tree.

Common uses: Balusters, Barrels, Bedroom suites, Bent Parts, Boxes and crates, Building construction, Building materials, Cabinetmaking, Carvings, Casks, Chairs, Chests, Concealed parts (Furniture), Construction, Core Stock, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Farm vehicles, Fiberboard, Fine furniture, Floor lamps, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Interior construction, Kitchen cabinets, Light construction, Living-room suites, Matchboxes, Matches, Moldings, Office furniture, Packing cases, Pallets, Particleboard, Plywood corestock, Plywood, Pulp/Paper products, Pulpwood, Radio - stereo - TV cabinets, Shingles, Tables, Veneer, Wheels

Environment profile: Status has not been officially assessed

Tree size: Tree height is 40-50 m

Colors: the heart isYellow to golden-yellow to orange, Yellowish tanand the sapwoodWhite to yellow, Yellow.The grain isWeak figure, the textureUniformand the lusterSometimes lustrous but not always

Natural durability: Susceptible to wood staining fungal attack, Very little natural resistance

Odor: No taste Strong odor when green which disappears after it is dried

LightInduced Color Change: Darker

Kiln Schedules: Drying (speed) is fast

Kiln Drying Rate: Naturally dries quickly

Drying Defects: Slight surface checking, Splitting

Ease of Drying: Reconditioning Treatement

Tree Identification: Bole/stem form is straight

Comments: Abnormal Wood TissueGeneral finishing qualities are rated as good

Blunting Effect: Moderate

Boring: Use very sharp cutting edges to prevent grain from tearing

Cutting Resistance: Moderate to saw

Gluing: Glues well

Mortising: Very sharp edges are required

Moulding: Requires very sharp cutting edges

Movement in Service: Requires very sharp cutting edges

Nailing: Nails hold poorly, Poor to Very Poor

Planing: Very Good to Excellent

Resistance to Impregnation: Sapwood is treatable

Response to hand tools: Very sharp cutting edges are required to produce a smooth surface

Routing recessing: Requires very sharp cutters

Veneering qualities: Veneers easily, Veneers moderately easy

Screwing: Poor to Very Poor Results ; Turning: Sharp cutting edges required


  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,25
Density 336 kg/m3
Bending Strength 375 586 kg/cm2
Crushing Strength 165 284 kg/cm2
Hardness 184 kg
Impact Strength cm
Shearing Strength 64 kg/cm2
Stiffness 71 84 1000 kg/cm2
Tangential Shrinkage 5 %
Radial Shrinkage 2 %
Weight 336 256 kg/m3
Maximum Load 0,35 0,49 cm-kg/cm3
Toughness 70 cm-kg
Static Bending 198 337 kg/cm2
Item Green Dry English
Bending Strength 5343 8345 psi
Density 21 lbs/ft3
Hardness 406 lbs
Maximum Crushing Strength 2348 4052 psi
Shearing Strength 912 psi
Static Bending 2822 4802 psi
Stiffness 1021 1195 1000 psi
Toughness 61 inch-lbs
Work to Maximum Load 5 7 inch-lbs/in3
Specific Gravity 0.25
Weight 21 16 lbs/ft3
Radial Shrinkage 2 %
Tangential Shrinkage 5 %
Volumetric Shrinkage 9 %

Shrinkage, Tangential = very small
Shrinkage, Radial = very small
Density (dry weight) = 15-22 lbs/cu. ft.
Modulus of Elasticity (stiffness) = very low
Max. crushing strength = low
Bending strength (MOR) = low

Bolza, E. and N. H. Kloot.1966.The Mechanical Properties of 81 New Guinea Timbers.Technological Paper No. 41. Division of Forest Products.Commonwealth Scientific and Industrial Research Organization, Melbourne, Australia.Bolza, E., Kloot, N.H.,1976,The Mechanical Properties of 81 New Guinea Timbers,C.S.I.R.O. Div. Building Res. Tec.Paper (2nd series) 11Bolza, E.,1975,Properties and Uses of 175 Timber Species from Papua New Guinea and West,Irian,C.S.I.R.O. Div. Building Research Report,no.34Bolza, E.,1981,The Mechanical properties of 33 Solomon Islands timbers,C.S.I.R.O. Div. Building Research. Technical Paper (2nd series) No.37Boone, R.S., C.J. Kozlik, P.J. Bois, and E.M. Wengert. 1988.Dry Kiln Schedules for Commercial Woods - Temperate and Tropical.United States Department of Agriculture, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Dilip Kumar Das,1990,Wood Anatomy of Koroi (Albizia Spp.) of Bangladesh,Bangladesh Forest Research Institute, Chittagong, Bulletin 10 Wood Anatomy,SeriesEddowes, 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.Eddowes, P.J.,1977,Commercial Timbers of Papua New Guinea: Their Properties and Uses,Hebano Press, Port Moresby, Papua New GuineaGerhards, C.C.,1966,Physical and Mechanical Properties of Molucca Albizzia grown in Hawaii,US Dept. of Agriculture Forest Service Forest Products Lab. Madison Wis.,Research Paper FPL_55I.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 CuttingKartasujana, I., Martawijaya, A.,1973,Commercial Woods of Indonesia,Forest Products Research Institute, Department Pertanian, Bogor Indonesia,Report No.3Keating, 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,1Kloot, N. H. and E. Bolza.1961.Properties of Timbers Imported into Australia.Technological Paper No. 12.Division of Forest Products, Commonwealth Scientific and Industrial Research Organization, Melbourne, Australia.Lee, Y.H., Lopez, D.T.,1968,The Machining Properties of some Malayan Timbers,Malayan Forester,3,pp194-210Limaye, V.D. 1954. Grouping of Indian Timbers and their Properties, Uses and Suitability. Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 2, Forest Research Institute, Dehra Dun, India.Limaye, V.D. and B.R. Sen. 1953. Weights and Specific Gravities of Indian Woods.Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 4, Forest Research Institute, Dehra Dun, India.Peh, T.B. and Khoo, K.C.,1984,Timber Properties of Acacia mangium, Gmelina arborea, Paraserianthes,falcataria and their utilization aspects.,The Malaysian Forester, Vol.47, No.4, pp.285-303.Salleh, M.N. and W.C. Wong,1989,Utilization of Forest Plantation Trees.,Recent Developments in Tree,Plantations of Humid/Subhumid Tropics of Asia, 5-9 June 1989 Universiti,Pertanian Malaysia Proceedings of a Regional Symposium,Faculty of Forestry Universiti Pertanian MalaysiaSkolmen, R.G.,1974,Some woods of Hawaii, properties and uses of 16 commercial species,U.S.A. Department of Agriculture, Forest Service, Pacific Southwest Forest,and Range Experiment Station, General Technical Report PSW_8Solomon Islands, Ministry of Natural Resources, Forestry Division,1979,Solomon Islands Timbers - Minor Species,Solomon Islands, Ministry of Natural Resources, Forestry Division, Honiara,Timber Booklet 2Tamolang, F.R. and Rocafort, J.E.,1987,Physico-Mechanical Properties and Possible Uses of Eleven Plantation-Grown,Timber Species in the Philippines,FPRDI-Journal 16:1-2,75-85WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.Yoji Kikata (ed.,1991,The promotion of Lesser-known Species and Plantation-grown species,Proceedings of the International Forest Products Workshop, 14 to 15,October, 1991, Nagoya University, Japan
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