Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Comments Common Names Common Uses Countries of Distribution Drying Defects Family Name Grain Heartwood Color Luster Natural Durability Numerical Data Polishing References Regions of Distribution Response to Hand Tools Sapwood Color Scientific Name Strength Properties Texture Trade Name Tree Identification Tree Size		Scientific Name Aspidosperma album Trade Name Bois macaque Family Name Apocynaceae Common Names Bois macaque, Bois macaye, Hielillo negro, Koumanti oudou, Kromanti kopi, Shibadan Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] French Guiana, Guyana, Suriname, Venezuela Common Uses Flooring, Furniture, Heavy construction, Paneling, Railroad ties, Turnery Heartwood Color Brown Yellow Orange Yellow to golden-yellow to orange Brown Reddish brown Pale red to pink Sapwood Color Different than heartwood Grain Figure Even Straight Other (figure) Straight Other figure Texture Medium Fine Medium Fine to medium Luster Pronounced Lustrous Natural Durability Perishable Non-durable Non-resistant to powder post beetles Susceptible to insect attack Resistant to attack from termites (Isoptera) Resistant to attack from powder post (Lyctid & Bostrychid) beetles Non durable Moderately durable Durable Drying Defects Distortion Tree Identification Bole/stem form is not buttressed Bole/stem form is cylindrical Tree Size Tree height is 20-30 m Comments General finishing qualities are rated as good Response to Hand Tools Easy to machine Polishing Good results Strength Properties Density (dry weight) = 53-60 lbs/cu. ft Density (dry weight) = 61-67 lbs/cu. ft Density (dry weight) = 46-52 lbs/cu. ft. Bending strength (MOR) = very high Bending strength (MOR) = high Shrinkage, Tangential = large Shrinkage, Tangential = fairly large Shrinkage, Radial = large Shrinkage, Radial = fairly large Shearing strength (parallel to grain) = medium Shearing strength (parallel to grain) = low Modulus of Elasticity (stiffness) = very high Max. crushing strength = very high Max. crushing strength = high Hardness (side grain) = medium Bending strength (MOR) = medium Numerical Data Item Green Dry English Bending Strength 15656 23004 psi Density 55 lbs/ft3 Hardness 1658 lbs Maximum Crushing Strength 8467 11767 psi Shearing Strength 1883 psi Stiffness 2578 3011 1000 psi Weight 54 43 lbs/ft3 Radial Shrinkage 5 % Tangential Shrinkage 9 % Item Green Dry Metric Bending Strength 1100 1617 kg/cm2 Density 881 kg/m3 Hardness 752 kg Maximum Crushing Strength 595 827 kg/cm2 Shearing Strength 132 kg/cm2 Stiffness 181 211 1000 kg/cm2 Weight 865 689 kg/m3 Radial Shrinkage 5 % References Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry Department Fanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1 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 Vink, A.T.,1965,Surinam Timbers,Surinam Forest Service Paramaribo,3rd rev. ed.