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ArjunArjun
Arjun (Terminalia arjuna)

Family: Combretaceae

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

Distributed in: India (Oceania and S.E. Asia)

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.

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

Environment profile: Status has not been officially assessed

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

Colors: the heart isRed, Yellowand the sapwoodPinkish-Gray , Yellow.The grain isStraight, the textureCoarse

Natural durability: Susceptible to attack by some wood destroying insects , Susceptible to insect attack

Odor: No specific smell or taste

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

Comments: Generally strong, tough, and hard. It has high calorific value, and is highly suitable for charcoal and as fuelwoodVery heavy

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Moderate to saw

Mortising: Fairly Difficult to Very Difficult

Moulding: Fairly Difficult to Very Difficult

Movement in Service: Fairly Difficult to Very Difficult

Nailing: Fair to Good , Pre-Boring Recommended

Planing: Fairly Difficult to Very Difficult

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

Veneering qualities: Suitable for plywood , Suitable for veneers

Screwing: Fairly Easy to Very Easy, Pre-boring recommended; Turning: Very good

Polishing: Takes a lasting polish ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,67 0,71
Density 801 kg/m3
Bending Strength 599 869 kg/cm2
Crushing Strength 291 428 kg/cm2
Hardness kg
Impact Strength 111 96 cm
Shearing Strength kg/cm2
Stiffness 75 95 1000 kg/cm2
Tangential Shrinkage 7 %
Radial Shrinkage 4 %
Weight 1137 785 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 8532 12362 psi
Density 50 lbs/ft3
Impact Strength 44 38 inches
Maximum Crushing Strength 4149 6101 psi
Stiffness 1074 1362 1000 psi
Specific Gravity 0.67 0.71
Weight 71 49 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 7 %
Volumetric Shrinkage 12 %

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

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.
*Come interpretare i dati (manleva su eventuali imprecisioni)