Bintangor (Calophyllum tomentosum)
Family: Guttiferae
Common names: Bintangor, Bitanghol, Bitaog, Damanu, Fteh, Ka thang han, Ka thang lan, Legitu, Penaga, Poon, Rakich, Tamanou, Tang hon, Wangu
Distributed in: Fiji, India, Indonesia, New Caledonia, Papua New Guinea, Philippines, Solomon Islands, Thailand (Oceania and S.E. Asia)
Distribution overview: In Kerala, at the southernmost corner of India. Relatively small pockets of the original tropical evergreen forests remain, which is where this species grows.
Common uses: Balusters, Bedroom suites, Bent Parts, Boat building, Building construction, Building materials, Cabinetmaking, Canoes, Chairs, Chests, Construction, Desks, Dining-room furniture, Domestic flooring, Drawer sides, Factory flooring, Fine furniture, Flooring, Furniture , Furniture components, Furniture squares or stock, Hatracks, Interior construction, Kitchen cabinets, Lifeboats, Light construction, Living-room suites, Moldings, Office furniture, Parquet flooring, Radio - stereo - TV cabinets, Rustic furniture, Shipbuilding, Stairworks, Stools, Stringers, Sub-flooring, Utility furniture, Wardrobes
Environment profile: Status has not been officially assessed
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isWhite, Yellowand the sapwoodYellow, Yellowish-brown.The grain isInterlocked, the textureUneven texturedand the lusterLustrous
Natural durability: Susceptible to attack by decay causing organisms, termites and marine borers, Susceptible to insect attack
Odor: No specific smell or taste
Kiln Schedules: T2 - D4 (4/4); T2 - D3 (8/4) US
Drying Defects: Moderate surface checking, Moderate twist/warp
Ease of Drying: Reconditioning Treatement
Blunting Effect: Little
Boring: Fairly easy to very easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Low resistance
Gluing: Fairly Easy to Very Easy
Mortising: Fairly Easy to Very Easy
Moulding: Fairly Easy to Very Easy
Movement in Service: Fairly Easy to Very Easy
Nailing: Fair to Good , Fairly Easy to Very Easy
Planing: Special attention required
Resistance to Impregnation: Sapwood is easily treatable
Response to hand tools: Responds Readily
Routing recessing: Fairly Easy to Very Easy
Sanding: Fairly Easy to Very Easy
Screwing: Fair to Good Results, Fairly Easy to Very Easy; Turning: Fairly Easy to Very Easy
Polishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
0,49 |
0,59 |
|
Density |
|
624 |
kg/m3 |
Bending Strength |
618 |
928 |
kg/cm2 |
Crushing Strength |
304 |
544 |
kg/cm2 |
Hardness |
|
655 |
kg |
Impact Strength |
71 |
60 |
cm |
Shearing Strength |
|
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kg/cm2 |
Stiffness |
88 |
109 |
1000 kg/cm2 |
Tangential Shrinkage |
6 |
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% |
Radial Shrinkage |
5 |
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% |
Weight |
769 |
608 |
kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
|
124 |
cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 8796 | 13207 | psi | Density | | 39 | lbs/ft3 | Hardness | | 1446 | lbs | Impact Strength | 28 | 24 | inches | Maximum Crushing Strength | 4334 | 7744 | psi | Stiffness | 1259 | 1560 | 1000 psi | Toughness | | 108 | inch-lbs | Specific Gravity | 0.49 | 0.59 | | Weight | 48 | 38 | lbs/ft3 | Radial Shrinkage | 5 | | % | Tangential Shrinkage | 6 | | % | Volumetric Shrinkage | 13 | | % | |
Hardness (side grain) = medium Compression strength (parallel to grain) = high
The bending strength of air-dried wood of the species is similar to that of Teak, which is considered to be strong. Maximum crushing strength, or compression strength parallel to grain, is high. Some familiar species with high crushing strength parallel to grain include Hard maple, Teak, and White oak. Hardness is rated as medium. It resists denting and marring about as well as white oak or birch. The weight is high. The wood has high density.
Chowdhury, 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.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.
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