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Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Family Name
Grain
Kiln Drying Rate
Kiln Schedules
Luster
Natural Durability
Numerical Data
Polishing
References
Regions of Distribution
Response to Hand Tools
Scientific Name
Strength Properties
Synonyms
Texture
Trade Name
Tree Size
Turning
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Synonyms
Mimosa catechu, Mimosa catechuoides, Mimosa sundra, Acacia sundra
Common Names
Baga, Black catechu, Cacciu, Cachu, Calto, Cutch tree, Indian acacia, Kadira, Kagli, Karan-galli, Karnagalli, Katechubaum, Ker, Kergli, Khair, Khayer, Khehiree, Kheriya baral, Khoira, Khoiru, Khuera, Koir, Lal-khair, Nalla sandra, Nya, Othalei, Pau-ferro, Rat kihiri, Sandra, Sha, Shaji, Shalein, Shemi, Sundra, Telle tumma, Tun-sa-se, Worthlay, Zunda
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Bangladesh, Burma, India, Pakistan, Thailand
Common Uses
Agricultural implements, Boat building (general), Boat building: framing, Boxes and crates, Cabinetmaking, Charcoal, Chemical derivatives, Food containers, Fuelwood, Furniture, Heavy construction, Light construction, Mine timbers, Poles, Posts, Railroad ties, Tool handles
Distribution Overview
Cutch is native to central and east Africa, southern Asia, Bhutan, Burma China (Guangdong, Guangxi Yunnan and southern Zhejiang), India, Myanmar, Nepal and Pakistan.
Grain
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| Interlocked |
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| Even |
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Texture
| Medium |
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| Coarse |
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| Medium to coarse |
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| Medium |
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Luster
Natural Durability
| Very durable |
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| Durable |
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| Resistant to marine borers |
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| Resistant to termites |
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| Very durable |
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| Resistant to attack from termites (Isoptera) |
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| Resistant to attack from marine borers |
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| Durable |
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Kiln Schedules
Drying Defects
| Splitting |
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| Moderate end spitting |
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Ease of Drying
Kiln Drying Rate
Tree Size
| Bole length is 0-10 m |
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| Tree height is 10-20 m |
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| Tree height is 20-30 m |
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| Tree height is 30-40 m |
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Comments
General finishing qualities are rated as good
Cutting Resistance
| Fairly Difficult to Very Difficult to saw |
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| Cutting Resistance with dry wood is difficult |
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Response to Hand Tools
| Fairly Difficult to Difficult to Work |
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| Difficult to machine |
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Turning
| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Fair to Good Results |
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| Easy to turn |
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| Good results |
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Polishing
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Satisfactory results |
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| Good results |
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Strength Properties
| Shrinkage, Tangential = very small |
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| Shrinkage, Radial = very small |
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| Shearing strength (parallel to grain) = high |
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| Modulus of Elasticity (stiffness) = high |
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| Max. crushing strength = high |
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| Bending strength (MOR) = high |
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| Shrinkage, Volumetric = small |
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| Toughness-Hammer drop (Impact strength) = medium |
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| Hardness (side grain)= hard |
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| Hardness (side grain) = very hard |
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| Density (dry weight) = 61 - 67 lbs/cu. ft |
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| Density (dry weight)= 53 - 60 lbs/cu. ft |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 13576 | 20956 | psi |
| Density | | 58 | lbs/ft3 |
| Hardness | | 2628 | lbs |
| Impact Strength | | 40 | inches |
| Maximum Crushing Strength | 6899 | 9945 | psi |
| Shearing Strength | | 2847 | psi |
| Stiffness | 2167 | 2494 | 1000 psi |
| Weight | 57 | 47 | lbs/ft3 |
| Radial Shrinkage | 2 | | % |
| Tangential Shrinkage | 4 | | % |
| Volumetric Shrinkage | 6 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 954 | 1473 | kg/cm2 |
| Density | | 929 | kg/m3 |
| Hardness | | 1192 | kg |
| Impact Strength | | 101 | cm |
| Maximum Crushing Strength | 485 | 699 | kg/cm2 |
| Shearing Strength | | 200 | kg/cm2 |
| Stiffness | 152 | 175 | 1000 kg/cm2 |
| Weight | 913 | 753 | kg/m3 |
| Radial Shrinkage | 2 | | % |
| Tangential Shrinkage | 4 | | % |
References
Bakshi, B.K., Et al,1961,A Note on Decay Resistance of Teak, Shisham and Khair,Indian Forester 87(1) pp40-1
Forest Research Institute, Dehra Dun,1973,Indian Timbers - Khair,Forest Research Institute and Colleges, Dehru Dun Information Series No.12
Freitas, M.C.P.G. de,1963,Maderas da India Portuguesa,Lisbon Mem. Junta de Invest. do Ultramar,No.47
Limaye, V.D.,1957,Grouping of Indian Timbers and Their Properties, Uses and Suitability.,Indian Forest Records (N.S. Timber Mechanics Vol.1 No.2)
Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols
Purushotam, A., Et al,1953,Wood Preservation in India (past, present and future,Indian Forest Bulletin (N.5, 168
Ramesh, Rao K., Purkayastha, S.K.,1972,Indian Woods - Their Identification Properties and Uses,Dehra Dun India,Vol. 3
Rawat, B.S., Rawat, N.S.,1960,Physical and Mechanical properties of woods tested at the Forest Research,Institute, Dehra Dun Report XI,Indian Forestry Records (NS) Timber Mechanics 1(12)
Sial, N.M.,1955,A review of Acacia catechu and its products with particular reference to,Pakistan,Pakistan Journal of Forestry 5(1) pp23-32
Streets, R.J.,1962,Exotic Forest Trees in the British Commonwealth,Clarendon Press Oxford
Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6
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