East Indian ebony (Diospyros mindanaensis)
Family: Ebenaceae
Common names: Ata ata, Camagon, East Indian ebony, Ebony persimmon, Itom itom, Kamagong, Kanran, Kaya arang, Kayu malam, Kukuo, Marblewood, Mgiriti, Msindi, Nyareti, Omenowa, Philippine ebony, Tayung, Ugau
Distributed in: Philippines (Oceania and S.E. Asia)
Distribution overview: Indo-Malayan region, probably at low altitudes in the primary forests in the Philippines.
Common uses: Carvings, Drum sticks, Inlay work, Marquetry, Musical instruments , Organ pipes, Ornamental work , Piano keys, Pianos , Sounding boards, Turnery, Violin bows, Violin, Woodwork , Xylophones
Product sources: The species is one of the largest and the most widely distributed of the genus Diospyros in the Philippines, and probably the best known. Its common name Ata-ata is often used to refer to other species in the genus when their origin is unknown.
Environment profile: Status unknown due to inadequate information
Tree size: Tree height is 30-40 m
Colors: the heart isSmall heartwood, Yellowand the sapwoodWide, Yellowish after drying.The grain isStraight, the textureMediumand the lusterLow
Natural durability: Non-resistant to powder post beetles, Non-resistant to termites
Odor: No specific smell or taste
Silica Content: Siliceous
Kiln Schedules: T3 - C2 (4/4); T3 - C1 (8/4) US
Drying Defects: Distortion, Resin Exudation
Ease of Drying: Thick Stock Requires Care
Blunting Effect: Severe blunting effect on cutting surfaces
Boring: Fairly easy to very easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Satisfactory sawing properties
Gluing: Fairly Difficult to Very Difficult
Mortising: Fairly Easy to Very Easy
Moulding: Fairly Easy to Very Easy
Movement in Service: Fairly Easy to Very Easy
Nailing: Fairly Easy to Very Easy, Possible if prebored
Planing: Special attention required
Resistance to Impregnation: Resistant sapwood
Routing recessing: Fairly Easy to Very Easy
Sanding: Fairly Easy to Very Easy
Steam bending: Poor to Very Poor Results
Screwing: Fair to Good Results, Fairly Easy to Very Easy; Turning: Good results
Polishing: Poor to Very Poor; Staining: Poor to Very Poor; Varnishing: Poor to Very Poor;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
|
|
|
|
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
|
kg/m3 |
Bending Strength |
888 |
1254 |
kg/cm2 |
Crushing Strength |
|
|
kg/cm2 |
Hardness |
|
920 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
|
kg/cm2 |
Stiffness |
138 |
146 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
|
|
% |
Weight |
|
|
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
496 |
cm-kg |
Static Bending |
569 |
932 |
kg/cm2 |
|
| | | | Item | Green | Dry | English | Bending Strength | 12642 | 17841 | psi | Hardness | | 2029 | lbs | Static Bending | 8098 | 13269 | psi | Stiffness | 1965 | 2077 | 1000 psi | Toughness | | 431 | inch-lbs | Specific Gravity | 0.63 | 0.66 | | |
Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Desch, H. E. 1957. Manual of Malayan Timbers - Volume I. Malayan Forest Records, No. 15. Malaya Publishing House Ltd., Singapore.Lauricio, F. M., Bellosillo, S. B., The Mechanical and Related Properties of Philippine Woods, The Philippine Lumber Journal, 12(5):A-H.Reyes, L.J. 1938. Philippine Woods. Department of Agriculture and Commerce, Technical Bulletin 7, Commonwealth of the Philippines, Bureau of Printing, Manila.Schneider, E.E. 1916. Commercial Woods of the Philippines: Their Preparation and Uses. Bulletin No. 14. Department of the Interior, Bureau of Forestry, Manila, Philippines.
|