Simpoh (Dillenia luzoniensis)
Family: Dilleniaceae
Common names: Dillenia, Katmon, Malakatmon, San, Simpoh, Simpur
Distributed in: Philippines (Oceania and S.E. Asia)
Distribution overview: Found in the Indo-Malayan region, this species is widely distributed at low and medium elevationson the Luzon Island, and on the Palawan Island in the Philippines.
Common uses: Chairs, Chests, Concealed parts (Furniture), Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Factory flooring, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Hatracks, Kitchen cabinets, Living-room suites, Office furniture, Parquet flooring, Radio - stereo - TV cabinets, Rustic furniture, Stools, Sub-flooring, Tables , Utility furniture, Wardrobes
Environment profile: Extinct, Endangered, Vulnerable, or Rare within its range
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isPurplish, Reddish brownand the sapwoodNot clearly differentiated from the heartwood, Paler than heartwood.The grain isTwisted, the textureMedium coarse to coarse
Natural durability: Very durable, Very little natural resistance
Odor: No specific smell or taste
Kiln Schedules: T3 - C2 (4/4) US/T3 - C2 (4/4) U
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Quartersawn material less prone to degrade, Splitting
Ease of Drying: Specific information on drying difficulty is not available
Blunting Effect: High to severe
Boring: Fairly good results
Cutting Resistance: Sawn timber may spring immediately after sawing
Nailing: Fairly Easy to Very Easy, Nails hold poorly
Planing: Planing yields smooth surfaces
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Fairly Difficult to Difficult to Work
Steam bending: Fair to Good Results
Turning: Good results
Polishing: Fair to Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
0,63 |
0,65 |
|
Density |
|
560 |
kg/m3 |
Bending Strength |
768 |
1068 |
kg/cm2 |
Crushing Strength |
106 |
135 |
kg/cm2 |
Hardness |
|
956 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
155 |
kg/cm2 |
Stiffness |
115 |
121 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
|
|
% |
Weight |
|
|
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
326 |
cm-kg |
Static Bending |
439 |
601 |
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 10935 | 15192 | psi | Crushing Strength | 1512 | 1924 | psi | Density | | 35 | lbs/ft3 | Hardness | | 2109 | lbs | Maximum Crushing Strength | 5170 | 8781 | psi | Shearing Strength | | 2215 | psi | Static Bending | 6258 | 8558 | psi | Stiffness | 1644 | 1729 | 1000 psi | Toughness | | 283 | inch-lbs | Specific Gravity | 0.63 | 0.65 | | Weight | 34 | 28. | lbs/ft3 | |
Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.EcoTimber International, Personal Communication, 1993.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,1Lauricio, F. M., Bellosillo, S. B., The Mechanical and Related Properties of Philippine Woods, The Philippine Lumber Journal, 12(5):A-HReyes, L.J. 1938. Philippine Woods. Department of Agriculture and Commerce, Technical Bulletin 7, Commonwealth of the Philippines, Bureau of Printing, Manila.
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