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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 Cutting Resistance Drying Defects Ease of Drying Family Name Gluing Grain Heartwood Color Kiln Drying Rate Luster Nailing Natural Durability Numerical Data Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sapwood Color Scientific Name Strength Properties Texture Toxicity Trade Name Tree Identification Tree Size Scientific Name Schinopsis balanse Trade Name Barauna Family Name Anacardiaceae Common Names Barauna, Barauva, Brauna, Cocobalo, Quebacho santiqueno, Quebracho chaqueno, Quebracho colorado, Quebracho colorado chaqueno, Quebracho hembra, Quebracho macho, Quebracho moro, Quebracho negro, Quebracho rubio, Quebracho santafecino, Quiebra hacha, Soto negro Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Argentina, Bolivia, Brazil, Paraguay Common Uses Axles, Bridge construction, Cabinetmaking, Flooring, Fuelwood, Furniture, Heavy construction, Joinery, Mine timbers, Piling, Poles, Posts, Railroad ties, Sporting Goods, Structural work, Turnery, Vehicle parts, Wharf construction Heartwood Color Brown Red Yellow Green/grey Pink Orange Dark brown Reddish brown Red Sapwood Color White Yellow White to yellow Well defined Pinkish Grain Figure Interlocked Other (figure) Stripe (figure) Interlocked Other figure Striped figure Texture Medium Coarse Fine Luster Low Lustrous Natural Durability Perishable Susceptible to insect attack Non-resistant to powder post beetles Non-resistant to termites Non-durable Very durable Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Resistant to attack from termites (Isoptera) Resistant to attack from powder post (Lyctid & Bostrychid) beetles Resistant to attack from marine borers Durable Toxicity Dermatitic effects Unspecified toxicity Respiratory effects Drying Defects Splitting Checking Moderate twist/warp Moderate surface checking Severe twisting/warping Severe surface checking Ease of Drying Slowly Kiln Drying Rate Naturally dries slowly Tree Identification Bole/stem form is straight Bole/stem form is cylindrical Tree Size Tree height is 10-20 m Tree height is 20-30 m Comments General finishing qualities are rated as good Cutting Resistance Cutting Resistance with green wood is difficult Cutting Resistance with dry wood is difficult Gluing Fairly Easy to Very Easy Nailing Pre-Boring Recommended Planing Fairly Difficult to Very Difficult Resistance to Impregnation Resistant heartwood Resistant sapwood Response to Hand Tools Fairly Difficult to Difficult to Work Difficult to machine Polishing Very Good to Excellent Results Fair to Good Results Good results Satisfactory results Strength Properties Shrinkage, Tangential = large Shrinkage, Radial = large Density (dry weight) = 61-67 lbs/cu. ft Shrinkage, Tangential = fairly large Shrinkage, Radial = fairly large Density (dry weight) = >75 lbs/cu. ft Density (dry weight) = 67-75 lbs/cu.ft Bending strength (MOR) = medium Bending strength (MOR) = high Numerical Data Item Green Dry English Bending Strength 11442 17761 psi Density 59 lbs/ft3 Weight 58 57 lbs/ft3 Radial Shrinkage 6 % Tangential Shrinkage 9 % Item Green Dry Metric Bending Strength 804 1248 kg/cm2 Density 945 kg/m3 Weight 929 913 kg/m3 Radial Shrinkage 6 % References 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 Research Celulosa Argentina,1973,Libro del Arbol,Celulosa Argentina Buenos Aires 3 Vols Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry Department Kryn, J.M.,1954,Quebracho, Quebracho Colorado, Quebracho Macho-Schinopsis lorentzii Engl,and Schinopsis balansae Engl,U.S.A. Department of Agriculture, Forest Products Laboratory, Madison,Information Leaflet, Foreign Woods Report No 1969 Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University Press Record, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. Press Record, S.J.,1939,American Woods of the Family Anacardiaceae,Tropical Woods,8(60,pp11-45 Tortorelli, L.,1956,Maderas y Bosques Argentinos,Editorial Acme S.A.C.I. Buenos Aires Woods, R.P.,1949,Timbers of South America,TRADA, Red Booklet Series Wood, B., Calnan, D.,1976,Toxic Woods,British Journal of Dermat 94 Suppl. 13