Berangan (Castanopsis acuminatissima)
Family: Fagaceae
Common names: Berangan, Evergreen chinkapin, Indian chestnut, New Guinea oak, Philippine chestnut, Thite
Distributed in: Malaysia (Oceania and S.E. Asia)
Distribution overview: India, Pakistan, Sri Lanka to Indomalesia.
Common uses: Balusters, Barrels, Beams, Bedroom suites, Boat building, Building construction, Building materials, Cabin construction, Cabinetmaking, Canoes, Casks, Chairs, Chests, Concealed parts (Furniture), Concrete formwork, Construction, Core Stock, Decks, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Exterior trim & siding, Exterior uses, Factory construction, Figured veneer, Fine furniture, Furniture , Joinery, Ladders , Light construction, Paneling , Shakes, Shingles, Shipbuilding, Tool handles, Turnery, Veneer
Product sources: Seldom available in quantities that would make it commercially valuable.
Environment profile: Questionable
Tree size: Tree height is 20-30 m
Colors: the heart isGreen/grey, Pinkish brownand the sapwoodStraw colored to grayish-white, White.The grain isStraight, the textureUneven
Natural durability: Susceptible to termite attack, Very durable
Odor: No taste
Drying Defects: Honeycombing possible, Prone to checking
Ease of Drying: Requires slow to moderate drying schedule.
Comments: Castanopsis acuminatissima is a true oak, and is closely related to species in the genus Quercus of the northern hemisphere
Blunting Effect:
Blunting effect on cutting edges is rated as moderate to high
Boring: Fairly easy to very easy
Carving: Good carving qualities
Cutting Resistance: Moderate to fairly difficult to saw
Gluing: Poor to Very Poor Results
Mortising: good
Moulding: Good moulding properties
Movement in Service: Good moulding properties
Nailing: Difficult to nail, Nails hold poorly
Planing: Fairly Easy to Very Easy
Resistance to Impregnation: Sapwood is permeable
Routing recessing: Routing yields good results
Sanding: Good sanding finish
Screwing: Poor screw holding properties
; Turning: Good results
Polishing: Good; Staining: Fair to Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
0,5 |
0,56 |
|
Density |
|
512 |
kg/m3 |
Bending Strength |
565 |
950 |
kg/cm2 |
Crushing Strength |
279 |
569 |
kg/cm2 |
Hardness |
|
400 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
93 |
kg/cm2 |
Stiffness |
119 |
154 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
|
|
% |
Weight |
|
|
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
164 |
cm-kg |
Static Bending |
413 |
682 |
kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 8036 | 13524 | psi | Density | | 32 | lbs/ft3 | Hardness | | 882 | lbs | Maximum Crushing Strength | 3979 | 8095 | psi | Shearing Strength | | 1323 | psi | Static Bending | 5880 | 9702 | psi | Stiffness | 1705 | 2195 | 1000 psi | Toughness | | 143 | inch-lbs | Specific Gravity | 0.5 | 0.56 | | Weight | 31 | 25. | lbs/ft3 | |
Weight = medium Hardness (side grain) = medium Compression strength (parallel to grain) = high Bending strength (MOR) = high
The wood resists denting and marring about as well as white oak or birch and has a high density
Bolza, E. and N. H. Kloot.1966.The Mechanical Properties of 81 New Guinea Timbers.Technological Paper No. 41.Division of Forest Products, Commonwealth Scientific & Industrial Research Organization, Melbourne, Australia.Eddowes, P. J.1977.Commercial Timbers of Papua New Guinea - Their Properties and Uses.Forest Products Research Center, Office of Forests, Department of Primary Industry, Papua New Guinea.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,1
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