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Blunting Effect
Boring
Carving
Comments
Common Names
Common Uses
Cutting Resistance
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Luster
Mortising
Moulding
Natural Durability
Numerical Data
Painting
Planing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sapwood Color
Scientific Name
Staining
Steam Bending
Strength Properties
Texture
Trade Name
Tree Size
Turning
Veneering Qualities
| Scientific
Name Lagerstroemia hypoleuca Trade Name Andaman pyinma Family Name Lythraceae |
|
Common Names
Andaman pyinma, Jarul, Pabda, Pyinma
Regions of Distribution
Oceania and S.E. Asia
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
Environmental Profile
| Abundant/Secure | ||||||||||||
| Rare |
Heartwood Color
| Brown | ||||||||||||
| Yellow | ||||||||||||
| Orange | ||||||||||||
| Red | ||||||||||||
| Purple | ||||||||||||
| Reddish brown | ||||||||||||
| Pale red to pink | ||||||||||||
| Dark brown | ||||||||||||
| Dark brown | ||||||||||||
| Brown |
Sapwood Color
| White | ||||||||||||
| Yellow | ||||||||||||
| White to yellow | ||||||||||||
| Different than heartwood | ||||||||||||
| Pinkish |
Grain
| Straight | ||||||||||||
| Interlocked | ||||||||||||
| Even |
| Straight | ||||||||||||
| Interlocked |
Texture
| Medium | ||||||||||||
| Fine | ||||||||||||
| Coarse | ||||||||||||
| Coarse | ||||||||||||
| Medium coarse to coarse |
Luster
| Lustrous | ||||||||||||
| Slightly lustrous |
Natural Durability
| Moderately durable | ||||||||||||
| Very durable | ||||||||||||
| Durable | ||||||||||||
| Susceptible to insect attack | ||||||||||||
| Durable | ||||||||||||
| Resistant to attack from termites (Isoptera) |
Drying Defects
| Distortion | ||||||||||||
| Checking | ||||||||||||
| Moderate end spitting |
Ease of Drying
| Fairly Easy | ||||||||||||
| Moderately Difficult to Difficult | ||||||||||||
| Easy |
Tree Size
| Tree height is 20-30 m | ||||||||||||
| Tree height is 10-20 m | ||||||||||||
| Bark width is 30-40 mm | ||||||||||||
| Sapwood width is 0-5 cm | ||||||||||||
| Tree height is 0-10 m | ||||||||||||
| Bark width is 25-30 mm | ||||||||||||
| Bark width is 20-25 mm | ||||||||||||
| Tree height is 30-40 m | ||||||||||||
| Tree height is 40-50 m | ||||||||||||
| Trunk diameter is 100-150 cm | ||||||||||||
| Trunk diameter is 150-200 cm |
Comments
General finishing qualities are rated as good
Blunting Effect
| Little | ||||||||||||
| 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 |
Planing
| Fairly Difficult to Very Difficult |
Resistance to Impregnation
| Resistant heartwood | ||||||||||||
| Resistant sapwood |
Response to Hand Tools
| Easy to Work | ||||||||||||
| Fairly Difficult to Difficult to Work | ||||||||||||
| Easy to machine |
Routing & Recessing
| Fairly Difficult to Very Difficult |
Turning
| Fairly Difficult to Very Difficult | ||||||||||||
| Easy to turn |
Veneering Qualities
| Veneers moderately easy | ||||||||||||
| Difficult to veneer | ||||||||||||
| Veneers easily | ||||||||||||
| Suitable for peeling |
Steam Bending
| Fair to Good Results |
Painting
| Poor to Very Poor Results |
Staining
| Poor to Very Poor Results |
Strength Properties
| 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 |
Numerical Data
| 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 | % | |
| Item | Green | Dry | Metric |
| Bending Strength | 654 | 1024 | kg/cm2 |
| Density | 641 | kg/m3 | |
| Hardness | 752 | kg | |
| Maximum Crushing Strength | 485 | 699 | kg/cm2 |
| Shearing Strength | 155 | kg/cm2 | |
| Stiffness | 117 | 135 | 1000 kg/cm2 |
| Weight | 624 | 496 | kg/m3 |
| Radial Shrinkage | 6 | % |
References
Brown, W.H.,1978,Timbers of the World, No. 3 Southern Asia,TRADA, Red Booklet Series
Chudnoff, 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. London
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
Purkayastha, S.K.,1982,Indian woods: Their identifications, properties and uses, Vol. IV,Myrlacene to Symploceae,Controller of Publications, New Delhi
Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6