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Chi
Chi (Chukrasia tabularis)

Family: Meliaceae

Common names: Agal, Agalai, Aglay, Arrodah, Boga poma, Boga porna, Burma almondwood, Chegarasi, Chickrassy, Chikrassi, Chittagong wood, Dal mara, Dalmara, Eleutharay, Ganti malle, Granti malle, Kaloti, Kinthat-putgyi, Kul hathuri, Lal devadari, Lal devderi, Madagiri vembu, Main, Mallei vepu, Pabba, Repoh, Saiphra, Sey barasi, Tawyinma, Vinma, Yinma

Distributed in: Bangladesh, Burma, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, Vietnam (Oceania and S.E. Asia)

Distribution overview: Widely distributed in the moist tropical forests of South and Southeast Asia where it is a dominant canopy tree. In peninsular Malaysia, it occasionally occurs as a coloniser of bare lands. In the area of natural distribution it is found in the lowlands and up to 800 m altitude, in areas with 1400-4000 mm rainfall/year. Prefers annual rainfall of more than 2000 mm a year, although it tolerates as little as 850 mm but then growth is slow. It thrives in areaswith uni- as well as bimodal rainfall regimes. Best growth when mean annual temperature is 20- 25￿C and absolute minimum of 5-10￿C. Outside its natural distribution it is grown in plantations in West and South Africa plus some Caribbean countries and Costa Rica..

Common uses: Balusters, Boat building (general), Boxes and crates, Building construction, Building materials, Cabinetmaking, Canoes, Carvings, Casks, Chairs, Chests, Concealed parts (Furniture), Construction, Cooperages, Decorative veneer, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Excelsior, Figured veneer, Fine furniture, Floor lamps, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Interior construction, Joinery, Kitchen cabinets, Light construction, Living-room suites, Mathematical instruments, Millwork, Moldings, Office furniture, Packing cases, Paneling , Paneling, Plywood, Plywood: veneer (marine), Pulp/Paper products, Radio - stereo - TV cabinets, Rustic furniture, Stairworks, Stools, Stringers, Tables , Tables, Textile equipment, Toys, Turnery, Utility furniture, Vats, Veneer, Veneer: decorative

Environment profile: Vulnerable in parts of its natural habitat

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureMediumand the lusterPronounced

Natural durability: Susceptible to marine borer attack, Very durable

Odor: Slight pleasant fragrance when cut

Kiln Schedules: UK=E US=T6D2/T3D1 Fr=5

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Easy

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good Generally strong and hard with low stiffness

Blunting Effect: Slight

Boring: Good results

Carving: Easy to carve

Cutting Resistance: Easy to saw

Gluing: Fairly Easy to Very Easy

Mortising: Finishes satisfactorily

Moulding: Satisfactory moulding

Movement in Service: Satisfactory moulding

Nailing: Holds nails well, Very Good to Excellent

Planing: Very Good to Excellent

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Good response

Routing recessing: Routing yields good results

Sanding: Easy to sand

Veneering qualities: Veneers easily, Veneers moderately easy

Screwing: Good screwing properties, Very Good to Excellent Results; Turning: Good results

Painting: Fair to Good; Polishing: Very Good to Excellent; Staining: Finish is generally satisfactory ; Varnishing: Fairly Easy to Very Easy;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,47 0,53
Density 657 kg/m3
Bending Strength 651 894 kg/cm2
Crushing Strength 69 90 kg/cm2
Hardness 556 kg
Impact Strength 71 91 cm
Shearing Strength 125 kg/cm2
Stiffness 104 120 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 3 %
Weight 641 624 kg/m3
Maximum Load 0,77 0,84 cm-kg/cm3
Toughness cm-kg
Static Bending 439 517 kg/cm2
Item Green Dry English
Bending Strength 9264 12717 psi
Crushing Strength 990 1284 psi
Density 41 lbs/ft3
Hardness 1226 lbs
Impact Strength 28 36 inches
Maximum Crushing Strength 4900 7050 psi
Shearing Strength 1790 psi
Static Bending 6252 7360 psi
Stiffness 1486 1715 1000 psi
Work to Maximum Load 11 12 inch-lbs/in3
Specific Gravity 0.47 0.53
Weight 40 39 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %
Volumetric Shrinkage 10 %

Max. crushing strength = medium 0
Density (dry weight) = 38-45 lbs/cu. ft.
Modulus of Elasticity (stiffness) = low
Toughness-Hammer drop (Impact Strength) = medium
Bending strength (MOR) = medium
Bending strength (MOR) = low
Toughness-Hammer drop (Impact Strength) = low
Hardness (side grain) = soft
Shrinkage, Volumetric = moderate
Shrinkage, Tangential = small
Shrinkage, Radial = small
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = medium
Hardness (side grain) = medium
Density (dry weight) = 31-37 lbs/cu. ft.
Shrinkage, Tangential = moderate
Shrinkage, Tangential = fairly large
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shearing strength (parallel to grain) = medium
Resists denting and marring
Modulus of Elasticity (stiffness) = very low
Modulus of Elasticity (stiffness) = high
Max. crushing strength = high
Heavy
Hardness = medium
Density = high
Density (dry weight) = 46-52 lbs/cu. ft.
Compression strength (parallel to grain) = high
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.48Brandis, D.,1906,Indian Trees,Constable & Co.Ltd.Brown, W.H.,1978,Timbers of the World, No. 3 Southern Asia,TRADA, Red Booklet SeriesCarrapiett, J.B.,1960,Notes on ornamental timbers of Burma,Burmese Forester,10(1,pp37-53Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Cox, H.A.,1939,A Handbook of Empire Timbers,Forest Products Research Laboratory, Princes RisboroughDesch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Farmer, R.H.,1972,Handbook of Hardwoods,HMSOForest Products Research Laboratory, U.K.,1955,Kiln-Drying Schedules,Forest Products Research Laboratory, Princes Risborough, Department of,Science and Industrial Research, Building Research Establishment Leaflet,No.42France - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. FranceGamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonHoward, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.Keating, 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,1Kribs, D.A.,1950,Commercial and Foreign Woods on the American Market (a manual to their,structure, identification, uses and distribution,U.S.A. Penn. State College, Tropical Woods LaboratoryLewis, F.,1934,The Vegetable Products of Ceylon,Assoc. Newspapers of Ceylon Ltd.Limaye, 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.Limaye, V.D.,1933,The Physical and Mechanical Properties of woods grown in India (Third,Interim Report on Project 1,Indian Forest Records,18(10,pp1-70Limaye, V.D.,1957,Grouping of Indian Timbers and Their Properties, Uses and Suitability.,Indian Forest Records (N.S. Timber Mechanics Vol.1 No.2)Nazma,1981,A handbook of Kerala Timbers,Kerala Forest Research Institute Research Report, No.9Ng, F.S.P. (Ed,1989,Tree Flora of Malaya A Manual for Foresters Volume 4,Forest Research Institute Malaysia Ministry of Primary IndustriesPatterson, D.,1988,Commercial Timbers of the World, 5th Edition,Gower Technical PressPearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 volsRehman, M.A.,1971,Shrinkage studies of Indian Timbers (Chickrassia tabularis,Journal of the Timber Dev. Assoc. of India,17(2,pp24-7Sekhar, A.C. and S.S. Bhatnagar.1957.Physical and Mechanical Properties of Woods Tested at Forest Research Institute, Report V.Indian Forest Records, New Series, Timber Mechanics, Volume 1, Number 6. The Manager of Publications, Delhi.Stevens, W C,1961,Kiln Operators Handbook,HMSOTitmuss, F.H.,1965,Commercial Timbers of the World,Technical Press Ltd., London, 3rd edition
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