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Thitka
Thitka (Pentace burmanica)

Family: Tiliaceae

Common names: Baru baran, Burma mahogany, Daeng amae, Kashit, Kathitka, Melunak, Melunal, Sisiat, Takalis, Takothet, Thethet, Thitka

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

Distribution overview: Pentace genus contains about 15 to 20 species of trees, and are mostly confined to Malaysia and Burma. P. burmanica occurs in the tropical forests of Burma, in Pyinmana, the Pegu Yomas, Martaban and Tenasserim.

Common uses: Agricultural implements, Boat building (general), Boat building, Boat building: framing, Boxes and crates, Building materials, Cabinetmaking, Canoes, Carvings, Casks, Chairs, Chests, Concealed parts (Furniture), Core Stock, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Door, Dowell pins, Dowells, Drawer sides, Excelsior, Factory flooring, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Interior construction, Interior trim, Joinery, Kitchen cabinets, Lifeboats, Light construction, Living-room suites, Mathematical instruments, Millwork, Musical instruments: piano, Oars, Paneling , Paneling, Plywood, Shipbuilding, T-Squares, Tables, Toys, Turnery, Vehicle parts, Veneer, Walking sticks

Environment profile: Data source is World Conservation Monitoring Center This species is currently secure, with very little threat to its population within its natural growth in most areas including Myanmar or Burma. Its status in Thailand is currently listed as unknown because of insufficient information

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isReddish brown, Yellow to golden-yellow to orangeand the sapwoodYellow, Yellow.The grain isStriped figure, the textureMedium coarse to coarseand the lusterMedium

Natural durability: Susceptible to marine borer attack, Very durable

Odor: Seasoned wood is without distinctive odor or taste.

LightInduced Color Change: Darker

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

Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Variable

Tree Identification: Bole/stem form is cylindrical

Comments: General finishing qualities are rated as good Timber produced by this species is of high quality, and is similar in many respects to the true mahogany (Swietenia ). It is very decorative, when properly sawn, and is highly suitable for making fine furniture, cabinets, interior fittings and panelling

Blunting Effect: Blunting effect on sawing dry wood is moderate

Boring: Satisfactory results

Carving: The wood is fairly hard, but it carves satisfactorily

Cutting Resistance: Satisfactory sawing properties

Gluing: Good gluing properties

Mortising: Mortising characteristics are satisfactory

Moulding: Good finishing The fairly hard timber responds fairly well to moulding operations

Movement in Service: Good finishing The fairly hard timber responds fairly well to moulding operations

Nailing: Easy to nail, Good nailing characteristics

Planing: Planes well, to a good finish

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Responds well to hand tools

Routing recessing: The timber responds well to ordinary tools in routing to produce satisfactory results

Sanding: Good sanding properties

Screwing: Easy to screw Screwing characteristics are fairly good ; Turning: Satisfactory turning properties

Polishing: Satisfactory; Staining: Finish is generally satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,52 0,57
Density 657 kg/m3
Bending Strength 672 907 kg/cm2
Crushing Strength 332 468 kg/cm2
Hardness 496 kg
Impact Strength 71 cm
Shearing Strength kg/cm2
Stiffness 107 119 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 3 %
Weight 624 624 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9565 12905 psi
Density 41 lbs/ft3
Hardness 1095 lbs
Impact Strength 28 inches
Maximum Crushing Strength 4728 6670 psi
Stiffness 1525 1699 1000 psi
Specific Gravity 0.52 0.57
Weight 39 39 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %
Volumetric Shrinkage 9 %

Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = small
Shrinkage, Radial = small
Toughness-Hammer drop (Impact Strength) = low
Shrinkage, Tangential = very small
Shrinkage, Tangential = fairly large
Shrinkage, Radial = very small
Modulus of Elasticity (stiffness) = low
Bending strength (MOR) = medium
Weight = heavy
Shrinkage, Volumetric = small
Shrinkage, Tangential = moderate
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = medium
Density = high
Density (dry weight) = 46-52 lbs/cu. ft.
Density (dry weight) = 31-37 lbs/cu. ft.
Compression strength (parallel to grain) = high
Bending strength in the air-dry condition (about 12 percent moisture content) is high
Bending strength (MOR) = low
It compares favorably with Teak, which also has high bending strength. Other species in this range include Teak, White oak, and Hard maple. It is fairly hard, resisting wear, denting, and marring fairly well

Brown, W.H.,1978,Timbers of the World, No. 3 Southern Asia,TRADA, Red Booklet SeriesBurgess, P.F.,1966,Timbers of Sabah,Sabah Forest Record, no.6Carrapiett, J.B.,1960,Notes on ornamental timbers of Burma,Burmese Forester,10(1,pp37-53Chowdhury, K.A. and S.S. Ghosh. 1958. Indian Woods - Their Identification, Properties and Uses, Volume I - Dilleniaceae to Elaeocarpaceae. Published by the Manager of Publications, Delhi, India.Chowdhury, K.A., Ghosh, S.S.,1958,Indian Woods: Their identification, properties and uses Vol. I,Dilleruaceae to Elaeocarpaceae,Manager of Publications, Delhi, IndiaChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Clifford, N.,1957,Timber Identification for the Builder and Architect,Leonard Hill (Books) LTD. LondonCox, 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,HMSOForests Products Research Laboratory, U.K.,1956,A Handbook of Hardwoods,Forest Products Research Laboratory, Princes Risborough, Department of,Science and Industrial Research, Building Research EstablishmentGamble, 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 LaboratoryLimaye, V.D. 1954. Grouping of Indian Timbers and Their Properties, Uses, and Suitability. Indian Forest Records (New Series). Timber Mechanics. Volume 1 No. 2. Manager of Publications (Publisher, DelhiLimaye, 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, DelhiPatterson, 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 volsTitmuss, F.H.,1965,Commercial Timbers of the World,Technical Press Ltd., London, 3rd edition
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