USDA Forest Service
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53705-2398
Wood Technical Fact Sheet
Other Common Names: Harino (Panama), Menudito (Venezuela), Bougou bati batra, Acacia franc (French Guiana), Timbauba (Brazil), Jebio, Hevio (Bolivia).
Distribution: Central America and southward to the Guianas and northern Brazil, Peru and Bolivia; preferring non-inundated sandy soil.
The Tree: Grows to a height of 120 ft with trunk diameters sometimes reaching 6 ft.
General Characteristics: Seasoned heartwood is light yellowish brown sometimes with darker streaks; narrow sapwood is deep cream in color. Grain is usually straight, sometimes interlocked; texture medium; luster low to medium; without odor or taste.
Weight: Basic specific gravity (ovendry weight/green volume) 0.82; air-dry density 62 pcf.
Mechanical Properties: (First two sets of data based on 2-in. standard; the third on the 1-in. standard.)
Moisture content Bending strength Modulus of elasticity Maximum crushing strength
(%) (Psi) (1,000 psi) (Psi)
Green (73) 16,490 2,820 7,430
12% 23,540 3,180 11,520
12% (44) 18,200 2,720 NA
12% (24) 21,900 3,120 13,100
Janka side hardness 2,000 lb for green material and 2,330 lb at 12% moisture content. Forest Products Laboratory toughness average for green and dry material is 285 in.-lb. (5/8-in. specimen).
Drying and Shrinkage: The wood is rated difficult to air-season; moderate crook and surface checking developed in wood dried at a fast to moderate rate. No dry kiln data available. Shrinkage from green to ovendry: radial 3.8%; tangential 8.8%; volumetric 13.9%.
Working Properties: The wood is rated as easy to moderately difficult to work, generating only a small amount of fuzzy grain in planing, otherwise finishing smoothly. Workmen occasionally allergic to the dust.
Durability: The wood is rated as very durable in resistance to attack by both white rot and brown-rot fungi.
Preservation: The heartwood is very difficult to treat and the sapwood is only slightly less so.
Uses: Furniture and cabinet work, heavy construction, railroad crossties, flooring, and tool handles.
Additional Reading: (24), (44), (73)