Pyinma (Lagerstroemia spp.)
Family: Lythraceae
Common names: Abak, Adamboe, Agupanga, Ajhar, Aropag, Astromelia, Banaba, Banang-pulo, Banglang, Batiladhan, Bolashari, Bondara, Bungir, Bungor, Bungor ayer, Bungur, Bungur lilin, Challa hole dasal, Eikmwe, Einmwe, Flor de la reina, Gara, Gara saikre, Gawknguchyamang, Hani, Hole-dasal, Intanin, Intannin, Jarul, Kadali, Kamaung, Kamaungni, Kau-ilan, Ketangi, King of flowers, Langoti, Lohuwa, Mai-sa-hpong, Makabalo, Manaba, Mani maruthu, Mani-maruthu, Melindres, Mitla, Mota bondara, Muhur, Mundi, Muruta, Nabulong, Nir marutha, Nir maruthu, Nir-venthekku, Nirmarud, Omdolu, Pamalasagon, Pamalauagon, Pamarauagon, Pantahaun, Parasabukung, Pride of India, Pu maruthu, Pumaruthu, Pyinma, Pyinma-ni, Queen crapemyrtle, Queen flower, Queen of flowers, Queens flower, Reina de las flores, Sekre, Shem marutha, Tabaek, Tabangao, Tabek, Taman, Tanbangau, Thwa-mu, Thwa-u, wengu, Ye-pyinma
Distributed in: Burma, Cambodia, China, India, Indonesia, Malaysia, Myanmar, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam (Oceania and S.E. Asia)
Distribution overview: Indo-Malayan region including Indochina and extending into Indonesia and the Philippines; along rivers and on moist flat land; often cultivated as an ornamental.
Common uses: Agricultural implements, Barge fenders, Beams, Boat building (general), Boat building, Boat building: framing, Boxes and crates, Bridge construction, Building construction, Building materials, Cabin construction, Cabinetmaking, Canoes, Casks, Chairs, Chests, Concealed parts (Furniture), Concrete formwork, Construction, Cooperages, Decks, Decorative veneer, Desks, Dining-room furniture, Docks, Dockwork, Domestic flooring, Door, Dowell pins, Dowells, Drawer sides, Excelsior, Factory construction, Figured veneer, Fine furniture, Floor lamps, Flooring, Form work, Foundation posts, Furniture , Furniture, Heavy construction, Joinery, Light construction, Marine construction, Mine timbers, Paneling , Paneling, Parquet flooring, Piling, Plywood, Poles, Posts, Pulp/Paper products, Railroad ties, Structural work, Textile equipment, Tool handles, Turnery, Vats, Vehicle parts, Wheel spokes
Environment profile: Status has not been officially assessed
Tree size: Trunk diameter is 150-200 cm
Colors: the heart isReddish brown, Yellowand the sapwoodYellow, Yellow/Brown .The grain isWavy, the textureUnevenand the lusterSlightly lustrous
Natural durability: Susceptible to insect attack, Very durable
Odor: No specific smell or taste
LightInduced Color Change: Darker
Kiln Schedules: Kiln Drying Rate (in days) is slow
Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)
Drying Defects: Slight twist/warp, Splitting
Ease of Drying: Slowly
Tree Identification: Bole/stem form is not buttressed
Comments: General finishing qualities are rated as good
Blunting Effect: Little
Boring: Good boring properties
Cutting Resistance: Easy to saw
Gluing: Very Good to Excellent Results
Mortising: good
Moulding: Good moulding properties
Movement in Service: Good moulding properties
Nailing: Holds nails well, Very Good to Excellent
Planing: Responds well to most machine tools to produce a relatively smooth finish
Resistance to Impregnation: Sapwood is moderately resistant
Response to hand tools: Moderate working qualities
Routing recessing: Works well in most machining operations
Sanding: Good sanding finish
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Fair to Good Results
Screwing: Fairly Easy to Very Easy, Very Good to Excellent Results; Turning: Finish is generally satisfactory
Painting: Poor to Very Poor; Polishing: Satisfactory; Staining: Poor to Very Poor; Varnishing: Fairly Difficult to Very Difficult
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- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
0,51 |
|
|
Density |
|
657 |
kg/m3 |
Bending Strength |
658 |
1006 |
kg/cm2 |
Crushing Strength |
78 |
121 |
kg/cm2 |
Hardness |
|
507 |
kg |
Impact Strength |
|
71 |
cm |
Shearing Strength |
|
134 |
kg/cm2 |
Stiffness |
92 |
112 |
1000 kg/cm2 |
Tangential Shrinkage |
6 |
|
% |
Radial Shrinkage |
4 |
|
% |
Weight |
641 |
480 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
282 |
cm-kg |
Static Bending |
352 |
550 |
kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 9371 | 14311 | psi | Crushing Strength | 1110 | 1723. | psi | Density | | 41 | lbs/ft3 | Hardness | | 1119 | lbs | Impact Strength | | 28 | inches | Maximum Crushing Strength | 4377 | 7320 | psi | Shearing Strength | | 1910 | psi | Static Bending | 5018 | 7824. | psi | Stiffness | 1310 | 1597 | 1000 psi | Toughness | | 245 | inch-lbs | Specific Gravity | 0.51 | | | Weight | 40 | 30 | lbs/ft3 | Radial Shrinkage | 4 | | % | Tangential Shrinkage | 6 | | % | Volumetric Shrinkage | 11 | | % | |
Density (dry weight) = 38-45 lbs/cu. ft. 0 Max. crushing strength = medium 0 Bending strength (MOR) = medium Modulus of Elasticity (stiffness) = very low Hardness (side grain) = soft Modulus of Elasticity (stiffness) = low Shrinkage, Tangential = moderate Density (dry weight) = 31-37 lbs/cu. ft. Shrinkage, Tangential = small Shrinkage, Radial = moderate Shrinkage, Volumetric = moderate Shrinkage, Radial = small Shrinkage, Radial = fairly large Shearing strength (parallel to grain) = medium Shearing strength (parallel to grain) = low Hardness (side grain) = medium Bending strength (MOR) = high Toughness-Hammer drop (Impact Strength) = low Shrinkage, Volumetric = small Shrinkage, Tangential = fairly large Shrinkage, Radial = very small Resists denting and marring Moderately hard Max. crushing strength = high Heavy Density = high Compression strength (parallel to grain) = high Bending strength (MOR) = low
Comparable to teak. Other species in this range include Teak, White oak, and Hard maple
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