White Meranti (Shorea hypochra)
Family: Dipterocarpaceae
Common names: Lun, Lun puteh, Melapi, White meranti
Distributed in: Brunei, Cambodia, India, Indonesia, Malaysia, Philippines, Thailand, Vietnam (Oceania and S.E. Asia)
Distribution overview: Species in the White meranti group of Shorea genus occurs in a wide area from India in the north and west through the Malaya Peninsula to the Philippines and the Celebes in the east.
Common uses: Beams, Bedroom suites, Building construction, Cabin construction, Cabinetmaking, Chairs, Chests, Concealed parts (Furniture), Concrete formwork, Construction, Decks, Decorative plywood, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Factory construction, Factory flooring, Fine furniture, Floor lamps, Flooring, Form work, Foundation posts, Framing, Furniture , Furniture components, Furniture squares or stock, Hatracks, Heavy construction, Joinery, Joists, Kitchen cabinets, Light construction, Living-room suites, Office furniture, Parquet flooring, Plywood, Porch columns
Product sources: Species in the Shorea group are a major source of timber from many parts of Southeast Asia. They are plentiful, and supplies are universally available, especially in the form of veneers. This popular wood is typically priced in the inexpensive range. Many species in the Shorea genus are also a source of other economically important non-timber products. Seeds of some species yield fat which is used in the manufacture of chocolate. Others produce nuts, the most common of which is the illipe nuts of commerce produced by S. gysbertisiana . The nuts yield a fat which is similar to cocoa-butter in some of its properties. Shorea trees are also tapped for oleo-resin, and typical dammar is obtained from S. wiesneri which grows in Java and Sumatra. The tree of S. robusta produces dammar which is used as a disinfectant and as incense in religious ceremonies in India. Other non-timber products from Shorea are reported to include tannin and fibers.
Environment profile: Data source is World Conservation Monitoring Center
The current environmental status of this species within its natural habitat is rated as Vulnerable in Cambodia, Thailand, Vietnam, and Malaysia
Tree size: Trunk diameter is 200-250 cm
Colors: the heart isPurple, Redand the sapwoodWhite, Yellow.The grain isInterlocked, the textureModerately coarseand the lusterSlightly lustrous
Natural durability: Varied natural resistance of heartwood to decay (poor to moderate) , Very durable
Odor: No distinct odor or taste
Silica Content: Contains high levels of silica (> 0.5% of dry weight)
Kiln Schedules: T6-D4 (4/4)
Kiln Drying Rate: Naturally dries slowly
Drying Defects: May cup and stain during drying , Splitting
Ease of Drying: Slowly
Comments: Produced by tress of Shorea species in the Anthoshorea group
Blunting Effect: Extreme blunting effect on cutting tools because of resin and silica
Boring: Boring properties are usually affected by high accumulations of silica in White meranti wood
Carving: Poor carving properties
Cutting Resistance: Tungsten-Tipped or stellite-tipped cutters and increased tooth pitch during sawing is recom.
Gluing: Easy to glue
Mortising: Difficult to mortise
Tend to be very abrasive
Moulding: Responds poorly to ordinary to machine tools
Movement in Service: Responds poorly to ordinary to machine tools
Nailing: Pre-boring recommended, Tends to split during nailing
Planing: Poor machining properties due to severe and rapid dulling of cutting edges
Resistance to Impregnation: Resistant to very resistant to preservative treatment
Response to hand tools: Very difficult to work with hand tools
Routing recessing: Routs with difficult, with severe dulling of cutting edges
Sanding: Good sanding properties
Steam bending: Poor steam bending qualities
Screwing: Good screwing properties
; Turning: Difficult turning operations
Polishing: Can be polished to a high finish, after surface preparation
; Staining: Stains rather well after surface pre-treatment
; Varnishing: Improve with surface preparation
;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
0,54 |
0,64 |
|
Density |
|
641 |
kg/m3 |
Bending Strength |
660 |
854 |
kg/cm2 |
Crushing Strength |
378 |
439 |
kg/cm2 |
Hardness |
|
463 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
106 |
kg/cm2 |
Stiffness |
89 |
102 |
1000 kg/cm2 |
Tangential Shrinkage |
7 |
|
% |
Radial Shrinkage |
4 |
|
% |
Weight |
785 |
624 |
kg/m3 |
Maximum Load |
0,56 |
0,77 |
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
419 |
654 |
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 9389 | 12160 | psi | Density | | 40 | lbs/ft3 | Hardness | | 1021 | lbs | Maximum Crushing Strength | 5380 | 6257 | psi | Shearing Strength | | 1509 | psi | Static Bending | 5968 | 9305. | psi | Stiffness | 1274 | 1460 | 1000 psi | Work to Maximum Load | 8 | 11 | inch-lbs/in3 | Specific Gravity | 0.54 | 0.64 | | Weight | 49 | 39 | lbs/ft3 | Radial Shrinkage | 4 | | % | Tangential Shrinkage | 7 | | % | Volumetric Shrinkage | 9 | | % | |
Resists wearing and marring Heavy Hardness = medium Density=High Compression strength (parallel to grain) = medium Bending strength in the air-dry condition (about 12%moisture content)is high-comparable to Teak
Arno, J. 1988. Shorea spp. - Luan. In A Guide to Useful Woods of the World. Flynn Jr., J.H., Editor. King Philip Publishing Co., Portland, Maine. 1994. Page 329-330.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.Desch, H. E. 1957. Manual of Malayan Timbers. Malayan Forest Records, 28(30):315-318.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.USDA. 1987. Wood Handbook: Wood as an Engineering Material. Agriculture Handbook No. 72. United States Department of Agriculture, Forest Service, Madison, Wisconsin.WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.
|