Bakam (Caesalpinia sappan)
Family: Leguminosae
Common names: Bakam, Bakamu, Bakapu, Bokmo, Chappangam, Hapang, Parthangi, Patang, Patanga, Pattang, Pattangi, Patunga, Sapang, Sappan, Sappan tree, Sepang, Sibukau, Sikalig, Sunthe, Teinnyet, The sappan-wood
Distributed in: Brunei, Burma, India, Malaysia, Philippines (Oceania and S.E. Asia)
Common uses: Cabinetmaking, Carvings, Chemical derivatives, Furniture, Musical instruments: strings, Poles, Sporting Goods, Walking sticks
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodPaler than heartwood, Yellow.The grain isWeak figure, the textureFine to mediumand the lusterMedium
Natural durability: Susceptible to insect attack, Very durable
Drying Defects: Moderate twist/warp, Splitting
Ease of Drying: Moderately Difficult to Difficult
Comments: General finishing qualities are rated as good
Cutting Resistance: Easy to saw
Planing: Fair to Good
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds Readily
Polishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
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865 |
kg/m3 |
Bending Strength |
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kg/cm2 |
Crushing Strength |
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kg/cm2 |
Hardness |
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kg |
Impact Strength |
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cm |
Shearing Strength |
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kg/cm2 |
Stiffness |
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1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
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% |
Weight |
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kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Density | | 54 | lbs/ft3 | Weight | 53 | 52 | lbs/ft3 | |
Density (dry weight) = 61-67 lbs/cu. ft. Density (dryweight ) = 67-75 lbs cu. ft.
Bourdillon, T.F.,1908,The Forest Trees of Travancore,Travancore Government PressBrowne, F.G.,1955,Forest Trees of Sarawak and Brunei and their Products.,Government Printing Office, Kuching, SarawakDesch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonRamesh, Rao K., Purkayastha, S.K.,1972,Indian Woods - Their Identification Properties and Uses,Dehra Dun India,Vol. 3Reyes, L.J.,1938,Philippine Woods,Commonwealth of the Philippines Department of Agriculture and Commerce,Technical Bulletin,No.7Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6Whitmore, T.C. (Ed.,1972,Tree Flora of Malaya A Manual for Foresters Volume 1,Forest Department Ministry of Agriculture and Lands Malaysia
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