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Common Names
Common Uses
Countries of Distribution
Distribution Overview
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Natural Durability
Numerical Data
References
Regions of Distribution
Sapwood Color
Scientific Name
Strength Properties
Texture
Trade Name
Tree Size
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Common Names
Alder, Boshi swa, Grey alder, Indian alder, Koe, Kohi, Kowal, Kunch, Kunis, Kuntz, Nepal alder, Newn, Ni, Piak, Pusala, Puzala, Udish, Utis, westa
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Cambodia, China, India, Laos, Myanmar, Nepal, Thailand, Vietnam
Common Uses
Blinds, Boxes and crates, Building construction, Building materials, Construction, Decorative plywood, General carpentry, Matches, Packing cases, Planks, Plywood, Shutters, Sills, Turnery, Windows
Environmental Profile
His species is secure within its natural habitat in most areas in its range, including the Yunnan Province in China, Nepal, and Vietnam. Its status in the wild is currently listed as unknown because of insufficient information in Indochina, the Xizang Zizhigu Au Province in China, Bhutan, Myanmar
Distribution Overview
Native to southeast Asia (Burmese hills, Himalayas, Subtropical China, Indochina). Introduced to Java, India, Hawaii, and the Philippines. It occurs in the Yunnan Province in China. It is also found in Nepal and Vietnam. In its native habitat it ranges from 300–3,000 m, in Hawaii from 300–1,800 m, growing well in areas with more than 500 mm annual precipitation.
Heartwood Color
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| Red |
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| Pink |
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| Pale red to pink |
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| Pale brown |
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Sapwood Color
| Brown |
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| Color not distinct from heartwood |
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Grain
| Generally straight, but not always |
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Figured
Texture
| Fine |
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| Even or uniform |
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| Uniform |
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| Fine |
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| Even textured |
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Natural Durability
| Perishable |
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| Durable |
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| Heartwood resistant to decay |
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Ease of Drying
| Reconditioning Treatement |
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Reported to season well without warping
Tree Size
The deciduous tree is described as large
Strength Properties
| Compression strength (parallel to grain) = low |
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| Bending strength (MOR) = low |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 5057 | 7242 | psi |
| Crushing Strength | 274 | 333 | psi |
| Density | | 23 | lbs/ft3 |
| Hardness | | 377 | lbs |
| Impact Strength | 15 | 14 | inches |
| Maximum Crushing Strength | 2421 | 4900 | psi |
| Shearing Strength | | 752 | psi |
| Static Bending | 2920 | 4253 | psi |
| Stiffness | 900 | 1152 | 1000 psi |
| Work to Maximum Load | 4 | 5 | inch-lbs/in3 |
| Specific Gravity | 0.25 | 0.26 | |
| Weight | 41 | 23 | lbs/ft3 |
| Radial Shrinkage | 2 | | % |
| Tangential Shrinkage | 6 | | % |
| Volumetric Shrinkage | 9 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 355 | 509 | kg/cm2 |
| Crushing Strength | 19 | 23 | kg/cm2 |
| Density | | 368 | kg/m3 |
| Hardness | | 171 | kg |
| Impact Strength | 38 | 35 | cm |
| Maximum Crushing Strength | 170 | 344 | kg/cm2 |
| Shearing Strength | | 52 | kg/cm2 |
| Static Bending | 205 | 299 | kg/cm2 |
| Stiffness | 63 | 80 | 1000 kg/cm2 |
| Work to Maximum Load | 0.28 | 0.35 | cm-kg/cm3 |
| Specific Gravity | 0.25 | 0.26 | |
| Weight | 657 | 368 | kg/m3 |
| Radial Shrinkage | 2 | | % |
| Tangential Shrinkage | 6 | | % |
References
Limaye, V.D. 1954. Grouping of Indian Timbers and their Properties, Uses and Suitability. Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 2, Forest Research Institute, Dehra Dun, India.
Limaye, V.D. and B.R. Sen. 1953. Weights and Specific Gravities of Indian Woods. Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 4, Forest Research Institute, Dehra Dun, India.
Reyes, L.J. 1938. Philippine Woods. Department of Agriculture and Commerce, Technical Bulletin 7, Commonwealth of the Philippines, Bureau of Printing, Manila.
Sekhar, A.C., B.R. Sen and S.S. Bhatnagar. 1956. Physical and Mechanical Properties of Woods Tested at the Forest Research Institute, Report VII. Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 8, Forest Research Institute, Dehra Dun, India.
Troup, R.S. 1909. Indian Woods and Their Uses. The Indian Forest Memoirs, Economic Products Series, Volume 1, No. 1. Superintendent, Government Printing, Calcutta, India.
WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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