Sepetir (Sindora sp.)
Family: Leguminosae
Common names: Gu, Kayu galu, Sepetir, Sindur, Supa
Distributed in: Cambodia, China, Indonesia, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam (Oceania and S.E. Asia)
Distribution overview: Several species in the genus Sindora are reported to occur in south-east Asia.
Common uses: Beams, Bedroom suites, Building construction, Building materials, Cabin construction, Cabinetmaking, Chairs, Chests, Concealed parts (Furniture), Concrete formwork, Construction, Core Stock, Decks, Decorative veneer, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Excelsior, Factory construction, Figured veneer, Fine furniture, Floor lamps, Form work, Foundation posts, Framing, Furniture , Furniture components, Furniture squares or stock, General carpentry, Handles, Hatracks, Heavy construction, Interior construction, Joinery, Joists, Kitchen cabinets, Light construction, Paneling , Tool handles, Veneer
Product sources: Various species in the genus are reported to produce the timber known commercially as Sepetir.
Environment profile: Status has not been officially assessed
Tree size: Tree height is 40-50 m
Colors: the heart isRed, Whiteand the sapwoodWhite, Wide.The grain isStraight to shallowly interlocked, the textureMediumand the lusterLow
Natural durability: Susceptible to termite attack, Very low natural resistance to decay in ground contact in the tropical regions
Odor: Spicy odor which persists even after the wood is seasoned
Kiln Schedules: T8-B3 (4/4)
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Distortion, May distort and end-split slightly during drying
Ease of Drying: Seasons with little degrade
Comments: Material loss during conversion is rather high because of the wide and unusable sapwood Oily Waste Factor
Blunting Effect: Severe dulling effect on cutting edges
Cutting Resistance: Difficult to saw
Nailing: Tends to split during nailing, Very Good to Excellent
Planing: Woodworking properties usually vary
Resistance to Impregnation: Satisfactory preservative absorption and retention
Response to hand tools: The operation requires sharp cutting edges for best results
Sanding: Fair sanding qualities
Veneering qualities: Best figure display in veneers is achieved through rotary-cutting
Steam bending: Poor to Very Poor Results
Polishing: Very Good to Excellent; Staining: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
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737 |
kg/m3 |
Bending Strength |
678 |
997 |
kg/cm2 |
Crushing Strength |
341 |
539 |
kg/cm2 |
Hardness |
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693 |
kg |
Impact Strength |
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cm |
Shearing Strength |
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124 |
kg/cm2 |
Stiffness |
112 |
134 |
1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
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% |
Weight |
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kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 9654 | 14187 | psi | Density | | 46 | lbs/ft3 | Hardness | | 1529 | lbs | Maximum Crushing Strength | 4861 | 7669 | psi | Shearing Strength | | 1767 | psi | Stiffness | 1603 | 1908 | 1000 psi | Weight | 41 | 34. | lbs/ft3 | |
Weight=High Resists wearing and marring Hardness = medium Density=High Compression strength (parallel to grain) = high Bending strength in the air-dry condition (about 12%moisture content)is high-comparable to Teak
Desch, H. E. 1957. Manual of Malayan Timbers - Volume I. Malayan Forest Records, No. 15. Malaysia Publishing House Ltd., Singapore.HMSO.1972.Handbook of Hardwoods, 2nd Edition.Revised by R.H. Farmer.Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Her Majesty's Stationery Office, London.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,1Rendle, B.J. Editor. 1970. World Timbers, Volume Three - Asia & Australia & New Zealand. Published by Ernest Benn Limited, Bouverie House, Fleet Street, London.
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