Amang jankar (Hopea beccariana)
Family: Dipterocarpaceae
Common names: Amang jankar, Amang terubuk, Banjutan jangkang, Chengai pasir, Chengal, Gagil, Garang buaya daun kechil, Jangkang, Lempong mit, Mahan besi, Mangarawan, Mangerawan, Manirawan, Mengarawan, Merawan, Merawan batu, Merawan daun lebar, Merawan jangkang, Merawan kunyit, Merawan penak, Nuas nyerakat hitam, Nyerakat hitam, Selangan, Selangan hijau, Selangan penak, Tenggerawan
Distributed in: Brunei, Malaysia, Thailand (Oceania and S.E. Asia)
Common uses: Boat building: framing, Furniture, Heavy construction, Joinery, Light construction
Colors: the heart isTan, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isStriped figure, the textureVery fineand the lusterPronounced
Natural durability: Resistant to termites, Very durable
Odor: Has an odor
Kiln Schedules: Dry at a slow speed
Drying Defects: Moderate surface checking
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good
Blunting Effect: High to severe
Boring: Fairly difficult to very difficult
Carving: Poor to Very Poor Results
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Fair to Good Results
Mortising: Fairly Difficult to Very Difficult
Moulding: Fairly Difficult to Very Difficult
Movement in Service: Fairly Difficult to Very Difficult
Nailing: Fairly Difficult to Very Difficult
Planing: Fairly Difficult to Very Difficult
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds Poorly
Routing recessing: Fairly Difficult to Very Difficult
Sanding: Fairly Difficult to Very Difficult
Screwing: Fairly Difficult to Very Difficult
; Turning: Fairly Difficult to Very Difficult
Painting: Fair to Good; Polishing: Very Good to Excellent; Staining: Finish is generally satisfactory
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- 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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801 |
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 | | 50 | lbs/ft3 | Weight | 49 | 39 | lbs/ft3 | |
Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 61-67 lbs/cu. ft. Density (dry weight) = 53-60 lbs/cu. ft. Density (dry weight) = 46-52 lbs/cu. ft.
Ashton, P.S.,1964,A manual of the Dipterocarp trees of Brunei State,O.U.P. LondonBrowne, F.G.,1955,Forest Trees of Sarawak and Brunei and their Products.,Government Printing Office, Kuching, SarawakBrown, W.H.,1978,Timbers of the World, No. 4 South East Asia,TRADA, Red Booklet SeriesChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Fundter, J.M.,1982,Names for Dipterocarp timbers and trees from Asia,Pudoc, Wageningen, NetherlandsI. Soerianegara and R.H.M.J. Lemmens (Editors,1993,Plant Resources of South-East Asia 5,(PROSEA, 1,Timber trees: Major commercial timbers,Pudoc Scientific Publishers, Wageningen 1993Meijer, W., Wood, G.H.S.,1964,Dipterocarps of Sabah (North Borneo,Sabah Forest Department, Forest Record No.5Menon, P.K.B.,1959,The wood anatomy of Malayan timbers: commercial timbers, 3. Light,hardwoods,Malaysian Forest Research Institute Kepong, Research Pamplet, No. 27.
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