Hububalli (Loxopterygium sagotii)
Family: Anacardiaceae
Common names: Aupar kwipari, Boeji mahonie, Boesi mahonie, Hoeboeballi, Hoobooballi, Hububalli, Koeipjarie, Kooel pialli, Kwipariye, Onotillo, Picaton, Slangenhout, Snakewood, Sneki hoedoe, Snekie hoedoe, Surinam snakewood
Distributed in: French Guiana, Guyana, Suriname, Venezuela (Central America, Latin America)
Distribution overview: Central and South America (Guyana, Venezuela, French Guyane and Surinam)
Common uses: Agricultural implements, Boat building (general), Cabinetmaking, Concrete formwork, Construction, Flooring, Flooring: industrial heavy traffic, Furniture , Furniture, Handles: general, Heavy construction, Joinery, Ladders, Light construction, Millwork, Plywood, Turnery, Vehicle parts, Veneer: decorative
Environment profile:
The conservation status of this species within its natural growth range has not been officially assessed
Tree size: Tree height is 30-40 m
Colors: the heart isRed, Reddish brownand the sapwoodDifferent than heartwood, White to yellow.The grain isWavy, the textureMediumand the lusterMedium
Natural durability: Susceptible to insect attack, Susceptible to marine borer attack
Odor: No specific smell or taste
Kiln Schedules: Drying (speed) is fast
Drying Defects: Slight surface checking, Slight twist/warp
Ease of Drying: Variable results.
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good General finishing qualities are rated as satisfactory
Cutting Resistance: Cutting Resistance with green wood is easy
Gluing: Easy to glue
Planing: Easy to plane
Hububalli is moderately hard and heavy. It responds well to most ordinary tools and works easily to produce smooth, clean surfaces in planing and other machining operations
Resistance to Impregnation: Heartwood is extremely resistant
Response to hand tools: Moderate working qualities
Veneering qualities: Suitable for peeling, There is slight to moderate drying degrade and the potential for buckles and splits
Turning: Good results
Polishing: Good
The timber is reported to finish readily to yield a high, lustrous surface; Varnishing: Poor turning properties
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- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
0,52 |
0,62 |
|
Density |
|
689 |
kg/m3 |
Bending Strength |
734 |
1097 |
kg/cm2 |
Crushing Strength |
60 |
62 |
kg/cm2 |
Hardness |
|
465 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
106 |
kg/cm2 |
Stiffness |
122 |
134 |
1000 kg/cm2 |
Tangential Shrinkage |
7 |
|
% |
Radial Shrinkage |
3 |
|
% |
Weight |
673 |
528 |
kg/m3 |
Maximum Load |
0,42 |
0,63 |
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
395 |
682 |
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 10452 | 15606 | psi | Crushing Strength | 862 | 882 | psi | Density | | 43 | lbs/ft3 | Hardness | | 1027 | lbs | Maximum Crushing Strength | 4108 | 6576 | psi | Shearing Strength | | 1511 | psi | Static Bending | 5625 | 9702 | psi | Stiffness | 1740 | 1914 | 1000 psi | Work to Maximum Load | 6 | 9 | inch-lbs/in3 | Specific Gravity | 0.52 | 0.62 | | Weight | 42 | 33 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 7 | | % | Volumetric Shrinkage | 11 | | % | |
Density (dry weight) = 38-45 lbs/cu. ft. 0 Density (dry weight) = 46-52 lbs/cu. ft. Bending strength (MOR) = medium Shearing strength (parallel to grain) = low Hardness (side grain) = soft Shrinkage, Tangential = moderate Shrinkage, Radial = small Modulus of Elasticity (stiffness) = medium Max. crushing strength = low Density (dry weight) = 53 - 60 lbs/cu. ft. Density (dry weight) = 31-37 lbs/cu. ft. Work to Maximum Load = very low Modulus of Elasticity (stiffness) = high Max. crushing strength = medium Max. crushing strength = high Bending strength (MOR) = very high Bending strength (MOR) = high
Most strength properties of air-seasoned Hububalli timber are far inferior to those of Yellow birch (Betulus ). Its shock resistance is only about half of that of Yellow birch, and bending strength and stiffness are about 15 to 20 percent less. The timber is reported to compare more favorably with Teak (Tectona) in air-dry strength properties such as bending strength, crushing strength, stiffness, shock resistance, hardness, and shear
Berni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchDickinson, F.E.,1949,Properties and Uses of Tropical Woods 1,Tropical Woods,13(95,pp1-140Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1France - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. FranceKribbs, D.A. 1959. Commercial Foreign Woods on the American Market. Buckhout Lab., Dept. of Botany, The Pennsylvania State University, University Park, Pennsylvania.Lamb, A.F.A., Wangaard, F.F.,1950,The Gluing Properties of certain Tropical American Woods,Yale Univ. School of Forestry Technical Report,4Polak, A.M.,1992,Major Timber Trees of Guyana A Field Guide,The Tropenbos Foundation Wageningen, The NetherlandsRecord, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRecord, S.J.,1939,American Woods of the Family Anacardiaceae,Tropical Woods,8(60,pp11-45Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4Vink, A.T.,1965,Surinam Timbers,Surinam Forest Service Paramaribo,3rd rev. ed.Wangaard, F.F. and A.F. Muschler.1952. Properties and Uses of Tropical Woods III, Tropical Woods, No. 98,Yale University Press, School of Forestry, New Haven, Connecticut.Wangaard, F.F., Muschler, A.F.,1952,Properties and Uses of Tropical Woods 3,Tropical Woods,14(98, pp1-190
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