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Agallochum
Agallochum (Aquilaria malaccensis)

Family: Thymelaeaceae

Common names: Agallochum, Agila wood, Alim, Aloes wood, Eagle wood, Gaharu, Halim, Karas, Kareh, Kayu gaharu, Kekaras, Kepang, Mengkaras, Tabak, Tangkaras, Tengkaras, Tuikaras

Distributed in: Brunei, Burma, India, Indonesia, Malaysia, Philippines (Oceania and S.E. Asia)

Common uses: Boxes and crates, Chemical derivatives

Tree size: Tree height is 10-20 m

Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeThe grain isStraight, the textureMedium to coarse

Natural durability: Susceptible to insect attack, Very durable

Kiln Schedules: Drying (speed) is fast

Tree Identification: Bole/stem form is straight

Blunting Effect: Blunting effect on sawing dry wood is mild

Planing: Very Good to Excellent

Response to hand tools: Fairly Difficult to Difficult to Work

Turning: Very Good to Excellent Results

Painting: Satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density kg/m3
Bending Strength 303 464 kg/cm2
Crushing Strength 212 362 kg/cm2
Hardness 144 kg
Impact Strength cm
Shearing Strength 62 kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 3 %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 4310 6606 psi
Hardness 319 lbs
Maximum Crushing Strength 3027 5157 psi
Shearing Strength 882 psi
Radial Shrinkage 3 %
Tangential Shrinkage 9 %

Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = small
Shrinkage, Radial = moderate
Shearing strength (parallel to grain) = very low
Max. crushing strength = medium
Max. crushing strength = low
Hardness (side grain) = very soft
Bending strength (MOR) = very low
Bending strength (MOR) = low

Browne, F.G.,1955,Forest Trees of Sarawak and Brunei and their Products.,Government Printing Office, Kuching, SarawakBurgess, P.F.,1966,Timbers of Sabah,Sabah Forest Record, no.6Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Kraemer, J.H.,1951,Trees of the Western Pacific Region,West Lafayette, Indiana U.S.A.Sarawak Forestry Department,1954,Trees and Timbers of Sarawak and Brunei,Sarawak Forestry Department Leaflet No.37Tsumoto, T., Karasawa, H.,1975,The Properties of Tropical Woods 21,Government of Japan Forest Experimental Station Bulletin,No.227Whitmore, T.C.,1973,Tree Flora of Malaya A Manual for Foresters Volume 2,Forest Department Ministry of Primary Industries Malaysia
*Come interpretare i dati (manleva su eventuali imprecisioni)