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Blunting Effect Boring Carving Certified Source Comments Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Family Name Gluing Grain Heartwood Color Kiln Drying Rate Luster Mortising Moulding Movement in Service Nailing Natural Durability Numerical Data Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sapwood Color Scientific Name Silica Content Steam Bending Strength Properties Substitutes Synonyms Texture Trade Name Tree Size Turning Veneering Qualities Scientific Name Virola bicuhyba Trade Name Arvore do sebo Family Name Myristicaceae Synonyms Myristica bicuhyba 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 Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Brazil Common Uses Flooring, Furniture, Joinery, Light construction, Mathematical instruments, Railroad ties, Shingles, Structural work Heartwood Color White Brown Yellow Red Green/grey Red Pale brown Dark brown Sapwood Color White Brown Yellow Red Grain Straight Even Straight Stripe Texture Fine Medium Medium Luster Medium Lustrous Natural Durability Perishable Durable Non-resistant to marine borers Susceptible to insect attack Resistant to marine borers Non-durable Non-resistant to termites Moderately durable Resistant to powder post beetles Moderately durable Silica Content High Drying Defects Splitting Checking Distortion Ease of Drying Moderately Difficult to Difficult Fairly Easy Rapidly Slowly Kiln Drying Rate Naturally dries quickly Naturally dries at a moderate speed Tree Size Bole length is 10-20 m Tree height is 30-40 m Tree height is 10-20 m Tree height is 20-30 m Bark width is 5-10 mm Certified Source Certified Source Substitutes Soft elm (Ulmus americana) Comments General finishing qualities are rated as good Blunting Effect Little Moderate Boring Fairly easy to very easy Fair to good results Fairly difficult to very difficult Carving Fair to Good Results Fairly Difficult to Very Difficult Cutting Resistance Easy to saw Gluing Fairly Difficult to Very Difficult Mortising Fairly Easy to Very Easy Fair to Good Results Fairly Difficult to Very Difficult Moulding Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Fairly Difficult to Very Difficult Movement in Service Excellent Stability - Small Movement Fair to Good Stability - Medium Movement Nailing Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Planing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Fairly Difficult to Very Difficult Resistance to Impregnation Permeable sapwood Permeable heartwood Resistant heartwood Resistant sapwood Response to Hand Tools Easy to Work Easy to machine Routing & Recessing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Fairly Difficult to Very Difficult Turning Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Fairly Difficult to Very Difficult Veneering Qualities Suitable for peeling Veneers easily Veneers moderately easy Steam Bending Poor to Very Poor Results Polishing Fair to Good Results Very Good to Excellent Results Fairly Easy to Very Easy Strength Properties 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 Numerical Data 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 % Item Green Dry Metric Bending Strength 493 774 kg/cm2 Density 641 kg/m3 Hardness 451 kg Maximum Crushing Strength 212 362 kg/cm2 Shearing Strength 62 kg/cm2 Stiffness 83 97 1000 kg/cm2 Weight 624 496 kg/m3 Radial Shrinkage 4 % References Brazier, J.D.,1975,Properties and uses of Brazilian woods,Journal of the Institute of Wood Science,7(2,pp50-57 Brown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet Series Record, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. Press Sao 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 Brrasileiras Takahashi, 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