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Kekatong
Kekatong (Cynometra ramiflora)

Family: Leguminosae

Common names: Balitbitan, Belangkan, Gal mendora, Gulos, Gulus, Hambabalanak, Irapu, Iripa, Irippa, Irudhu, Kahsilah, Kameu, Kammau, Kanaka, Kanakamara, Katong, Katong laut, Kekatong, Kelengui, Ketenguit, Ketunguit, Kumoh, Madhuka, Mahuka, Mang kha, Mangkha, Moivi, Myin-ka, Myinga, Myinka, Myinkabin, Naipudukan, Ommo, Omo, Oringen, Pamortisan, Shingar, Shingra, Yeminga

Distributed in: Burma, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Papua New Guinea, Philippines, Solomon Islands, Sri Lanka, Thailand, Vanuatu, Vietnam (Oceania and S.E. Asia)

Distribution overview: Common in the tidal forests of the Andamans and Sunderbans, but is rather sacrce in other areas in India. It is also found in Burma, Sri Lanka, and the Philippines.

Common uses: Agricultural implements, Balusters, Baskets, Boat building: framing, Broom handles, Building construction, Building materials, Cabinetmaking, Carvings, Chemical derivatives, Construction, Crossties, Domestic flooring, Door, Excelsior, Factory flooring, Flooring, Flooring: commercial heavy traffic, Food containers, Fuelwood, Furniture, Handles, Handles: general, Heavy construction, Interior construction, Joinery, Ladders, Light construction, Mine timbers, Moldings, Parquet flooring, Poles, Railroad ties, Shafts/Handles, Sporting Goods, Stairworks, Stringers, Sub-flooring, Tool handles, Toys, Turnery, Vehicle parts, Veneer: decorative, Woodwork

Environment profile: Vulnerable in parts of its natural habitat

Tree size: Stems are often of poor form

Colors: the heart isRed, Reddish brownand the sapwoodPaler than heartwood, Pink/Red .The grain isStraight, the textureMedium to coarseand the lusterLustrous

Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to marine borer attack

Odor: No specific smell or taste

Kiln Schedules: T6 - D4 (4/4) US/T6 - D4 (4/4) US

Drying Defects: Severe surface checking, Severe twisting/warping

Ease of Drying: Variable results.

Tree Identification: Bole/stem form is not buttressed

Comments: General finishing qualities are rated as good

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Easy to saw

Gluing: Fairly Difficult to Very Difficult

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Nails hold poorly, Pre-Boring Recommended

Planing: Planes well, to a good finish

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Easy to machine

Routing recessing: Fairly Easy to Very Easy

Veneering qualities: Easy to cut, Suitable for peeling

Screwing: Fair to Good Results, Pre-boring recommended; Turning: Fair to Good Results

Painting: Fairly Difficult to Very Difficult ; Polishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,72
Density 897 kg/m3
Bending Strength 936 1305 kg/cm2
Crushing Strength 457 668 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 129 174 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 3 %
Weight 977 881 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 13313 18563 psi
Density 56 lbs/ft3
Maximum Crushing Strength 6502 9508 psi
Stiffness 1842 2479 1000 psi
Specific Gravity 0.72
Weight 61 55 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 7 %

Density (dry weight) = 53-60 lbs/cu.ft.
Density (dry weight) = 67-75 lbs/cu. ft.
Density (dry weight) = 61-67 lbs/cu. ft
Shrinkage, Radial = small
Density (dry weight) = 46-52 lbs/cu. ft.
Shrinkage, Tangential = small
Shrinkage, Tangential = fairly large
Shrinkage, Tangenital =moderate
Shrinkage, Radial = moderate
Bending strength in the air-dry condition (about 12 percent moisture content) is very high. Compression strength parallel to grain, or maximum crushing strength, is very high - higher than in Teak or Hard maple. It is a very heavy wood. The wood is very dense.

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, 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.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Eddowes, P.J. 1977. Commercial Timbers of Papua New Guinea - Their Properties and Uses. Forest Products Research Center, Office of Forests, Department of Primary Industry, Papua New Guinea.I. 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 1993Keating, 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,1Oey Djoen Seng,1964,Specific gravity of Indonesian woods and its significance for practical,use,Communication No.1. Lembaga Penelitian Hasil Hutan, Bogor, IndonesiaRamesh, Rao K., Purkayastha, S.K.,1972,Indian Woods - Their Identification Properties and Uses,Dehra Dun India,Vol. 3Rao, K.R. and S.K. Purkayastha. 1972. Indian Woods - Their Identification, Properties and Uses, Volume III - Leguminosae to Combretaceae. Published by the Manager of Publications, Delhi, India.Reyes, L.J.,1938,Philippine Woods,Commonwealth of the Philippines Department of Agriculture and Commerce,Technical Bulletin,No.7Whitmore, T.C. (Ed.,1972,Tree Flora of Malaya A Manual for Foresters Volume 1,Forest Department Ministry of Agriculture and Lands Malaysia
*Come interpretare i dati (manleva su eventuali imprecisioni)