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Boring
Carving
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Mortising
Moulding
Nailing
Natural Durability
Numerical Data
Odor
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sapwood Color
Scientific Name
Screwing
Strength Properties
Texture
Toxicity
Trade Name
Tree Size
Turning
Veneering Qualities
Weathering

Scientific Name
Terminalia arjuna

Trade Name
Arjun

Family Name
Combretaceae

Wood Image 1

Wood Image 1

Common Names
Arjun, Chasemiich, Esemi, Kil, Kowa, Kumbuk, Kung, Mangi, Sadado, Tellamadi, Tilautaea

Regions of Distribution
Oceania and S.E. Asia

Countries of Distribution  [VIEW MAP]
India

Common Uses
Beams, Building construction, Building materials, Cabin construction, Clogs, Concrete formwork, Construction, Crossties, Decks, Decorative plywood, Factory construction, Farm vehicles, Form work, Foundation posts, Framing, Handles, Heavy construction, Joists, Light construction, Mine timbers, Plywood, Porch columns, Rafters, Railroad ties, Roofing, Rough construction, Shafts/Handles, Structural plywood, Tool handles, Utility plywood, Wheel spokes, Wheels , Windows

Environmental Profile
Status has not been officially assessed


Distribution Overview
Terminalia is a large genus consisting of over 200 species of very large trees that occur extensively in the tropical regions of the world. Terminalia arjuna occurs throughout most of India, from Oudh southwards, and is often found along river and stream banks, ravines and dry water beds. It is also reported to grow in southern, western and Central India, Bihar, Orissa, parts of Maharashtra, Tamil Nadu and in Sri Lanka. often planted as an ornamental, and sometimes occurs as an escape in some areas.

Heartwood Color
Yellow
Brown
Red
Occasional dark streaks
Deep brown
Brown walnut

The heartwood is walnut brown to deep brown, sometimes with darker streaks which produce an attractive figure. Pores may be partially filled with tyloses, and a reddish-brown gum may also be present.

Sapwood Color
Yellow
Grey
Pinkish-Gray
Grayish-White, pinkish-white, or brownish white
Gray - pale
Clearly differentiated from the heartwood


Grain
Even
Interlocked
Straight

Straight
Slightly interlocked


Texture
Coarse
Coarse

The wood is hard to very hard

Natural Durability
Non-resistant to pinhole borers
Susceptible to insect attack
Susceptible to attack by some wood destroying insects
Moderately resistant to decay

Sapwood of logs is highly vulnerable to attack by wood borers, especially if logs are not debarked promptly after felling.

Weathering
Good


Odor
Has an odor
No specific smell or taste


Toxicity
Some toxic effects


Drying Defects
Prone to warping and splitting

Arjun is prone to warping and splitting, although the latter defect is less serious

Ease of Drying
Satisfactory kiln drying
Requires carefully controlled conditions to prevent decay
Fairly difficult to dry

Trees should be felled during or immediately after the rainy season and converted as soon as possible for best results. Proper stacking under cover and weighting have been recommended in air-seasoning

Tree Size
Tree height is 10-20 m


The tree is large and often buttressed. It develops boles that are sometimes fluted. Boles are seldom long or straight

Comments
Generally strong, tough, and hard.

It has high calorific value, and is highly suitable for charcoal and as fuelwood

Very heavy

Boring
Fairly difficult to very difficult


Carving
Fairly Difficult to Very Difficult


Cutting Resistance
Easy to saw
Moderate to saw
Fairly Difficult to Very Difficult to saw
Fairly difficult to saw


Mortising
Fairly Difficult to Very Difficult


Moulding
Fairly Difficult to Very Difficult


Nailing
Pre-Boring Recommended
Fair to Good Results


Planing
Fairly Difficult to Very Difficult
Difficult to plane

The timber is reported to plane with some difficulty, but it can be brought to a smooth finish with some care

Resistance to Impregnation
Heartwood responds well to treatment

Heartwood response to treatment is good, but complete penetration may not be always achieved.

Response to Hand Tools
Responds Poorly


Routing & Recessing
Fairly Difficult to Very Difficult


Screwing
Fair to Good Results
Pre-boring recommended
Fairly Easy to Very Easy


Turning
Fairly Difficult to Very Difficult
Very good


Veneering Qualities
Suitable for veneers
Suitable for plywood


Polishing
Takes a lasting polish


Strength Properties
Very heavy
Dense
Compression strength (parallel to grain) = medium

Bending strength in the air-dry condition (about 12 percent moisture content) is high - comparable to Teak

Numerical Data
ItemGreenDryEnglish
Bending Strength853212362psi
Density50lbs/ft3
Impact Strength4438inches
Maximum Crushing Strength41496101psi
Stiffness107413621000 psi
Specific Gravity0.670.71
Weight7149lbs/ft3
Radial Shrinkage4%
Tangential Shrinkage7%
Volumetric Shrinkage12%
ItemGreenDryMetric
Bending Strength599869kg/cm2
Density801kg/m3
Impact Strength11196cm
Maximum Crushing Strength291428kg/cm2
Stiffness75951000 kg/cm2
Specific Gravity0.670.71
Weight1137785kg/m3
Radial Shrinkage4%
Tangential Shrinkage7%

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.

Rao, 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.