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. Blunting Effect Boring Common Names Common Uses Countries of Distribution Drying Defects Ease of Drying Family Name Grain Heartwood Color Luster Movement in Service Natural Durability Numerical Data Planing References Regions of Distribution Response to Hand Tools Sapwood Color Scientific Name Silica Content Strength Properties Synonyms Texture Trade Name Tree Size Turning		Scientific Name Laurelia serrata Trade Name Huahuan Family Name Monimiaceae Synonyms Laurelia philippiana Common Names Huahuan, Laurela, Tepa Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Chile Common Uses Beehives, Boxes and crates, Furniture, Joinery, Plywood, Pulp/Paper products, Turnery Heartwood Color Brown Yellow Orange Black Red Pink Green/grey Yellow to golden-yellow to orange Sapwood Color Green/Grey Brown Yellow Grain Figure Weak (figure) Weak figure Texture Fine Luster Low Natural Durability Moderately durable Durable Resistant to marine borers Silica Content High Drying Defects Checking Distortion Ease of Drying Moderately Difficult to Difficult Fairly Easy Tree Size Tree height is 30-40 m Bole length is 20-30 m Tree height is 40-50 m Bole length is 10-20 m Tree height is 20-30 m Trunk diameter is 100-150 cm Blunting Effect High to severe Boring Fair to good results Fairly easy to very easy Movement in Service Unstable with Poor Stability - Large Movement Planing Very Good to Excellent Results Fair to Good Results Response to Hand Tools Fairly Difficult to Difficult to Work Turning Poor to Very Poor Results Strength Properties Hardness (side grain) = very soft Bending strength (MOR) = medium Modulus of Elasticity (stiffness) = very low Modulus of Elasticity (stiffness) = low Max. crushing strength = medium Bending strength (MOR) = low Shearing strength (parallel to grain) = very low Shrinkage, Volumetric = small Shrinkage, Tangential = moderate Density (dry weight) = 31-37 lbs/cu. ft. Toughness-Hammer drop (Impact Strength) = low Shrinkage, Volumetric = very small Shrinkage, Tangential = very small Shrinkage, Tangential = small Shrinkage, Radial = very small Shrinkage, Radial = small Shearing strength (parallel to grain) = low Max. crushing strength = low Hardness (side grain) = soft Density (dry weight) = 23-30 lbs/cu. ft. Numerical Data Item Green Dry English Bending Strength 7857 12304 psi Density 30 lbs/ft3 Hardness 415 lbs Impact Strength 28 inches Maximum Crushing Strength 3126 5295 psi Shearing Strength 1017 psi Stiffness 1188 1383 1000 psi Weight 29 25 lbs/ft3 Radial Shrinkage 2 % Tangential Shrinkage 6 % Volumetric Shrinkage 8 % Item Green Dry Metric Bending Strength 552 865 kg/cm2 Density 480 kg/m3 Hardness 188 kg Impact Strength 71 cm Maximum Crushing Strength 219 372 kg/cm2 Shearing Strength 71 kg/cm2 Stiffness 83 97 1000 kg/cm2 Weight 464 400 kg/m3 Radial Shrinkage 2 % Tangential Shrinkage 6 % References Brown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet Series Chaturvedi, M.D., Kobuski, C.E.,1969,Determinacion de las propriedades Mecanicas de algunas Maderas de,Impotancia Comercial en Chile,Instituto Forestal Chile Informe Tecnico,36 Chilean Forestry News,1941,Propiedades Fisicas y Mecanicas de las Maderas Chilenas,Min. de Terras y Colonizacion Chile, Dept. de Bienes Nacionales (Seccion,Bosqye, 103pp Chilean Forestry News,1979,Chilean Woods - Tepra (Laurelia phillippiana,Chilean Forestry News 2(14) p13 Cuevas, E., Donoso, J.,1967,Algunas propiedades mecanicas de coigue (Northofagus dambeyi) y Tepa,(Laurelia phillipiana,Asocciacion Chilena de Jornadas Forestales, Trobajo pp89-95 Cuevas, E., Franco, E.J. Sampaio,1967,Determinacion de valores de contraccion en algunas Maderas de Importancia,comecial,Assocaition Chilena de Ingenieros Forestales Actas de les Terceras,Jornados forestales - Trabayo 3-5, pp95-8 Guyana Forest Department,1967,Recopilacion de Propiedadas mecanicas de Maderas Creciendo en,Chile,Inst. For. Chile Nota Tecnica,8 Hastschbach, G., Basilis, G.,1951,Viscose-rayon Pulps from Chilean hardwoods - Coigue (Northofagus dombeyi,,Tepa (Laurelia serrata) and Ulmo (Eucryphia cordifolia,F.A.O. For. & For. Prod. Studies Series No.3 Tropical Woods and Ag.,Residues as sources of pulp,pp106-22 Woods, R.P.,1949,Timbers of South America,TRADA, Red Booklet Series