Arvore do sebo (Virola bicuhyba)
Family: Myristicaceae
Common names: Arvore do sebo, Babun, Becuiba, Becuiba assu, Becuiba branca, Becuiba mirim, Becuiba vermelha, Becuva, Bicuhyba, Bicuiba, Bucuva, Bucuvucu, Cajuco, Ucuuba branca, Ucuuba-vermelha, Uruuba-preta, Virola, Virola heavy
Distributed in: Brazil (Latin America)
Common uses: Flooring, Furniture, Joinery, Light construction, Mathematical instruments, Railroad ties, Shingles, Structural work
Tree size: Tree height is 30-40 m
Colors: the heart isWhite, Yellowand the sapwoodWhite, Yellow.The grain isStraight, the textureMediumand the lusterMedium
Natural durability: Resistant to powder post beetles, Susceptible to insect attack
Silica Content: High
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Distortion, Splitting
Ease of Drying: Slowly
Comments: General finishing qualities are rated as good
Blunting Effect: Moderate
Boring: Fairly easy to very easy
Carving: Fairly Difficult to Very Difficult
Cutting Resistance: Easy to saw
Gluing: Fairly Difficult to Very Difficult
Mortising: Fairly Easy to Very Easy
Moulding: Very Good to Excellent
Movement in Service: Very Good to Excellent
Nailing: Fairly Easy to Very Easy, Very Good to Excellent
Planing: Very Good to Excellent
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Easy to machine
Routing recessing: Very Good to Excellent Results
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Poor to Very Poor Results
Turning: Very Good to Excellent Results
Polishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
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Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
641 |
kg/m3 |
Bending Strength |
493 |
774 |
kg/cm2 |
Crushing Strength |
212 |
362 |
kg/cm2 |
Hardness |
|
451 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
62 |
kg/cm2 |
Stiffness |
83 |
97 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
4 |
|
% |
Weight |
624 |
496 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 7026 | 11011 | psi | Density | | 40 | lbs/ft3 | Hardness | | 995 | lbs | Maximum Crushing Strength | 3027 | 5157 | psi | Shearing Strength | | 882 | psi | Stiffness | 1188 | 1383 | 1000 psi | Weight | 39 | 31 | lbs/ft3 | Radial Shrinkage | 4 | | % | Tangential Shrinkage | 8 | | % | |
Bending strength (MOR) = low Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = very low Modulus of Elasticity (stiffness) = low Max. crushing strength = medium Max. crushing strength = low Hardness (side grain) = soft Density (dry weight) = 38-45 lbs/cu. ft. Bending strength (MOR) = medium Shrinkage, Tangential = moderate
Brazier, J.D.,1975,Properties and uses of Brazilian woods,Journal of the Institute of Wood Science,7(2,pp50-57Brown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet SeriesRecord, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. PressSao Paulo - Instituto de Pesquisas Tecnologicas,1956,Tabelas de Resultados obtidos para Madeiras Nacionais,Inst. Pesq. Tec. Sao Paulo, Brazil Bol., No.31(2nd Ed.)Sao Paulo-Instituto de Pesquito technologicas,1971,Bicuiba-Branca-Virola Sp.,Inst. Pesq. Tec. Div.de Madeiras, Sao Paulo. Fichas de caracteristicas das,Madeiras BrrasileirasTakahashi, 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.4
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