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Ditta 5
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Andaman pyinma
Andaman pyinma (Lagerstroemia hypoleuca)

Family: Lythraceae

Common names: Andaman pyinma, Jarul, Pabda, Pyinma

Common uses: Boat building (general), Boat building: decking, Boat building: framing, Boxes and crates, Cabinetmaking, Cooperages, Door, Flooring, Furniture, Golf club heads, Heavy construction, Joinery, Light construction, Mine timbers, Plywood, Poles, Railroad ties, Shingles, Structural work, Tables, Vehicle parts

Environment profile: Rare

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isReddish brown, Yellowand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureMedium coarse to coarseand the lusterSlightly lustrous

Natural durability: Susceptible to insect attack, Very durable

Drying Defects: Distortion, Moderate end spitting

Ease of Drying: Moderately Difficult to Difficult

Comments: General finishing qualities are rated as good

Blunting Effect: Moderate

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Cutting Resistance with dry wood is easy

Mortising: Fairly Difficult to Very Difficult

Moulding: Fairly Difficult to Very Difficult

Movement in Service: Fairly Difficult to Very Difficult

Planing: Fairly Difficult to Very Difficult

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Fairly Difficult to Difficult to Work

Routing recessing: Fairly Difficult to Very Difficult

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Fair to Good Results

Turning: Fairly Difficult to Very Difficult

Painting: Poor to Very Poor; Staining: Poor to Very Poor;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 641 kg/m3
Bending Strength 654 1024 kg/cm2
Crushing Strength 485 699 kg/cm2
Hardness 752 kg
Impact Strength cm
Shearing Strength 155 kg/cm2
Stiffness 117 135 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 6 %
Weight 624 496 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9310 14566 psi
Density 40 lbs/ft3
Hardness 1658 lbs
Maximum Crushing Strength 6899 9945 psi
Shearing Strength 2205 psi
Stiffness 1665 1923 1000 psi
Weight 39 31 lbs/ft3
Radial Shrinkage 6 %
Tangential Shrinkage 10 %

Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = large
Shrinkage, Radial = large
Shearing strength (parallel to grain) = medium
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = high
Hardness (side grain) = medium
Bending strength (MOR) = medium

Brown, W.H.,1978,Timbers of the World, No. 3 Southern Asia,TRADA, Red Booklet SeriesChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonLimaye, 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 volsPurkayastha, S.K.,1982,Indian woods: Their identifications, properties and uses, Vol. IV,Myrlacene to Symploceae,Controller of Publications, New DelhiTewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6
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