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Huahuan
Huahuan (Laurelia serrata)

Family: Monimiaceae

Common names: Huahuan, Laurela, Tepa

Distributed in: Chile (Latin America)

Common uses: Beehives, Boxes and crates, Furniture, Joinery, Plywood, Pulp/Paper products, Turnery

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodGreen/Grey, Yellow.The grain isWeak figure, the textureFine and the lusterLow

Natural durability: Moderately durable, Resistant to marine borers

Silica Content: High

Drying Defects: Checking, Distortion

Ease of Drying: Moderately Difficult to Difficult

Blunting Effect: High to severe

Boring: Fairly easy to very easy

Planing: Very Good to Excellent

Response to hand tools: Fairly Difficult to Difficult to Work

Turning: Poor to Very Poor Results


  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 480 kg/m3
Bending Strength 552 865 kg/cm2
Crushing Strength 219 372 kg/cm2
Hardness 188 kg
Impact Strength 71 cm
Shearing Strength 71 kg/cm2
Stiffness 83 97 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 2 %
Weight 464 400 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
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 %

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.

Brown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet SeriesChaturvedi, M.D., Kobuski, C.E.,1969,Determinacion de las propriedades Mecanicas de algunas Maderas de,Impotancia Comercial en Chile,Instituto Forestal Chile Informe Tecnico,36Chilean Forestry News,1941,Propiedades Fisicas y Mecanicas de las Maderas Chilenas,Min. de Terras y Colonizacion Chile, Dept. de Bienes Nacionales (Seccion,Bosqye, 103ppChilean Forestry News,1979,Chilean Woods - Tepra (Laurelia phillippiana,Chilean Forestry News 2(14) p13Cuevas, E., Donoso, J.,1967,Algunas propiedades mecanicas de coigue (Northofagus dambeyi) y Tepa,(Laurelia phillipiana,Asocciacion Chilena de Jornadas Forestales, Trobajo pp89-95Cuevas, 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, pp95-8Guyana Forest Department,1967,Recopilacion de Propiedadas mecanicas de Maderas Creciendo en,Chile,Inst. For. Chile Nota Tecnica,8Hastschbach, 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,pp106-22Woods, R.P.,1949,Timbers of South America,TRADA, Red Booklet Series
*Come interpretare i dati (manleva su eventuali imprecisioni)