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Kulim
Kulim (Scorodocarpus borneensis)

Family: Olacaceae

Common names: Ansam, Bawang, Bawang hutan, Bawang utan, Buwanghutan, Cepeluk, Forest garlic, Jaui, Kasino, Kayu bawang, Kudar, Kudur, Kulim, Kulium, Madudu, Marsindu, Merca, Rengon, Sedau, Selaru, Seluru, Sinduk, Sinoh, Terdu, Ungsanah

Distributed in: Indonesia, Malaysia (Oceania and S.E. Asia)

Distribution overview: This species occurs throughout the lowland forests in Borneo, the Malay Peninsula, and Sumatra. It is described as occasionally gregarious.

Common uses: Agricultural implements, Barge fenders, Boat building (general), Boat building, Boat building: framing, Bridge construction, Building construction, Building materials, Cabin construction, Canoes, Construction, Crossties, Docks, Dockwork, Domestic flooring, Excelsior, Factory construction, Flooring, Flooring: industrial heavy traffic, Harbor work, Heavy construction, Joinery (external): ground contact, Joinery, Lifeboats, Light construction, Marine construction, Mine timbers, Naval architecture, Parquet flooring, Piling, Plywood, Poles, Posts, Raft floats, Rafts, Railroad ties, Roofing, Shipbuilding, Sills, Sporting Goods, Structural work, Sub-flooring, Vehicle parts, Wharf construction, Windows

Environment profile: Secure within most of its natural growth range

Tree size: Tree height is 50-60 m

Colors: the heart isSilver flecks , Whiteand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureModerately fineand the lusterSlightly lustrous

Natural durability: Susceptible to attack from termites (Isoptera), Very durable

Odor: Strong garlic smell when freshly-cut, and peppery smell after it dries

LightInduced Color Change: Darker

Kiln Schedules: Kiln Drying Rate (in days) is rapid

Kiln Drying Rate: Kiln drying rate (green to 12% mc) is rapid, typically from less than 10 days for a board under 32 mm, to less than 30 days for a board 63 mm and thicker.

Drying Defects: No twisting or warping, Severe end splitting

Ease of Drying: Thick Stock Requires Care

Tree Identification: Bole/stem form is not buttressed

Blunting Effect: Little

Boring: Moderately easy

Carving: Responds readily to carving operations

Cutting Resistance: Fairly easy to saw

Gluing: Good gluing properties

Mortising: Finishes well

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Nails hold poorly, Possible if prebored

Planing: Works without too much difficulty in planing, moulding, boring, turning and most operations

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Stock without deeply interlocked grain is fairly easy to work

Routing recessing: Fairly Easy to Very Easy

Sanding: Good sanding finish

Veneering qualities: Suitable for peeling, Suitable for slicing

Steam bending: Tends to Degrade

Screwing: Fair to Good Results, Fairly Easy to Very Easy; Turning: Turns with moderate ease

Polishing: Satisfactory; Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,66
Density 849 kg/m3
Bending Strength 694 1011 kg/cm2
Crushing Strength 420 583 kg/cm2
Hardness 694 kg
Impact Strength 65 71 cm
Shearing Strength 93 kg/cm2
Stiffness 128 146 1000 kg/cm2
Tangential Shrinkage 7 %
Radial Shrinkage 3 %
Weight 833 641 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9875 14389 psi
Density 53 lbs/ft3
Hardness 1531 lbs
Impact Strength 26 28 inches
Maximum Crushing Strength 5979 8304 psi
Shearing Strength 1323 psi
Stiffness 1831 2080 1000 psi
Specific Gravity 0.66
Weight 52 40 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 7 %
Volumetric Shrinkage 13 %

Density (dry weight) = 53-60 lbs/cu. ft 0
Density (dry weight) = 46-52 lbs/cu. ft. 1
Modulus of Elasticity (stiffness) = medium
Hardness (side grain) = medium
Bending strength (MOR) = low
Shrinkage, Tangential = small
Shrinkage, Radial = very small
Max. crushing strength = medium
Max. crushing strength = high
Toughness-Hammer drop (Impact Strength) = low
Shrinkage, Radial = moderate
Shearing strength (parallel to grain) = very low
Density (dry weight) = 61-67 lbs/cu. ft
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = fairly large
Bending strength (MOR) = medium
Bending strength (MOR) = high
Shrinkage, Volumetric = large
Shrinkage, Tangential = very small
Shearing strength (parallel to grain) = medium
Modulus of Elasticity (stiffness) = high
Weight=High
Resists wearing, denting and marring fairly well
Modulus of Elasticity (stiffness) = very low
Density=High
Crushing strength = high
Compression strength (parallel to grain) = high

Balan Menon, P.K.,1958,Uses of Malayan Timbers,Malayan Forester 21(1) pp34-44Browne, 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.6Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Desch, H. E. 1957. Manual of Malayan Timbers. Malayan Forest Records, 28(30):315-318Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Grewal, G.S.,1979,Air seasoning properties of some Malaysian timbers,Malaysia Forestry Department, Forest Service, Trade Leaflet No.41Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.Jackson, W.F.,1957,The Durability of Malayan Timbers,Malayan Forester,20,pp38-48Kartasujana, I., Martawijaya, A.,1973,Commercial Woods of Indonesia,Forest Products Research Institute, Department Pertanian, Bogor Indonesia,Report No.3Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1Kloot, N. H. and E. Bolza.1961.Properties of Timbers Imported into Australia.Technological Paper No. 12.Division of Forest Products, Commonwealth Scientific & Industrial Research Organization, Melbourne, Australia.Lee, Y.H., Chu, Y.P.,1965,The Strength Properties of Malayan Timbers,Malayan Forester 28(4) pp307-19Lee, Y.H., et al,1974,Commercial Timbers of Peninsular Malaysia,Kuala Lumpur Malaysia Department of Forestry Peninsular Malaysia and,Malaysian Timber Industry BoardLee, Y.H., Lopez, D.T.,1968,The Machining Properties of some Malayan Timbers,Malayan Forester,3,pp194-210Malaysian Timber Industry Board,1986,100 Malaysian Timbers,The Malaysian Timber Industry BoardMenon, K.D.,1958,Susceptibility of Commercial Species of Malayan Timbers to Powder-post,Beetle,Attack,Malayan Forest Service Trade Leaflet,no.27Perrot, E.,1921,Les Bois du Gabon,Larose ParisSmythies, B.E.,1965,Common Sarawak Trees,Borneo Literature BureauStadelman, R.C.,1966,Forests of South-East Asia,Wimmer Bros., Memphis TennesseeStrugnell, E.J.,1931,Notes on woods for furniture making,Malaysian Forester 1 pp69-73Tamolang, F.N., Martawijaya, A., Kartasujana, I., Kadir, K., Parwira, S.,1992,Indonesian Wood Atlas Volume II,Department of Forestry, Agency for Forestry Research and Development,,Bogor-IndonesiaWalker, F.S.,1941,Resistance of Timbers to Marine Borer Attack,Malayan Forester 10(4) pp145-9WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.Whitmore, T.C.,1973,Tree Flora of Malaya A Manual for Foresters Volume 2,Forest Department Ministry of Primary Industries MalaysiaWong, T.M.,1982,A Dictionary of Malaysian Timbers,Malaysia Forest Department, Malayan Forest Records No.30
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