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Blunting Effect
Boring
Carving
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Kiln Schedules
Luster
Mortising
Moulding
Movement in Service
Nailing
Natural Durability
Numerical Data
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sanding
Sapwood Color
Scientific Name
Strength Properties
Synonyms
Texture
Trade Name
Turning
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Synonyms
Blackwellia tomentosa
Common Names
Burma lancewood, Khanang, Mai-kan-ang, Moulmein lancewood, Myaukchaw, Myaukngo, Myaukrigo, Ob, Thewalaw
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Burma, India
Common Uses
Agricultural implements, Boat building (general), Fishing rods, Fuelwood, Furniture, Heavy construction, Light construction, Marine construction, Poles, Railroad ties, Sporting Goods, Turnery, Vehicle parts
Environmental Profile
Heartwood Color
| Brown |
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| Yellow to golden-yellow to orange |
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| Reddish brown |
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| Pale brown |
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| Greenish to greyish |
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Sapwood Color
Grain
Texture
Luster
Natural Durability
| Perishable |
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| Non-durable |
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| Durable |
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| Very durable |
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| Non durable |
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| Moderately durable |
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Kiln Schedules
Drying Defects
| Moderate end spitting |
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| Moderate surface checking |
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| Severe surface checking |
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| Severe end splitting |
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| Moderate twist/warp |
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| Moderate spring/bow |
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Ease of Drying
Comments
General finishing qualities are rated as good
Blunting Effect
| Blunting effect on sawing dry wood is severe |
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| Blunting effect on machining is moderate |
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Boring
| Fair to good results |
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| Fairly easy to very easy |
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Carving
Cutting Resistance
| Easy to saw |
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| Cutting Resistance with dry wood is difficult |
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Mortising
| Very Good to Excellent Results |
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Moulding
| Fairly Easy to Very Easy |
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| Fair to Good Results |
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Movement in Service
| Fair to Good Stability - Medium Movement |
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| Excellent Stability - Small Movement |
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Nailing
| Pre-Boring Recommended |
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| Poor to Very Poor Results |
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Planing
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Planes well, to a good finish |
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Resistance to Impregnation
| Permeable sapwood |
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| Resistant heartwood |
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| Resistant sapwood |
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| Heartwood is moderately resistant |
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Response to Hand Tools
| Responds Readily |
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| Easy to machine |
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Routing & Recessing
| Fairly Easy to Very Easy |
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| Fair to Good Results |
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Sanding
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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Turning
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Easy to turn |
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| Good results |
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Polishing
| Fair to Good Results |
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| Satisfactory results |
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Strength Properties
| Max. crushing strength = high |
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| Hardness (side grain) = hard |
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| Modulus of Elasticity (stiffness) = medium |
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| Bending strength (MOR) = high |
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| Shearing strength (parallel to grain) = very high |
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| Shearing strength (parallel to grain) = medium |
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| Shearing strength (parallel to grain) = high |
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| Toughness-Hammer drop (Impact Strength) = medium |
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| Toughness-Hammer drop (Impact Strength) = high |
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| Shrinkage, Volumetric = large |
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| Shrinkage, Tangential = very small |
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| Shrinkage, Tangential = large |
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| Shrinkage, Tangential = fairly large |
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| Shrinkage, Radial = very small |
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| Shrinkage, Radial = moderate |
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| Shrinkage, Radial = fairly large |
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| Shearing strength (parallel to grain) = low |
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| Modulus of Elasticity (stiffness) = high |
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| Hardness (side grain) = very hard |
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| Bending strength (MOR) = medium |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 12722 | 19678 | psi |
| Hardness | | 2421 | lbs |
| Impact Strength | | 47 | inches |
| Maximum Crushing Strength | 6899 | 9945 | psi |
| Shearing Strength | | 2575 | psi |
| Stiffness | 1765 | 2037 | 1000 psi |
| Radial Shrinkage | 3 | | % |
| Tangential Shrinkage | 8 | | % |
| Volumetric Shrinkage | 15 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 894 | 1383 | kg/cm2 |
| Hardness | | 1098 | kg |
| Impact Strength | | 119 | cm |
| Maximum Crushing Strength | 485 | 699 | kg/cm2 |
| Shearing Strength | | 181 | kg/cm2 |
| Stiffness | 124 | 143 | 1000 kg/cm2 |
| Radial Shrinkage | 3 | | % |
| Tangential Shrinkage | 8 | | % |
References
Burgess, P.F.,1966,Timbers of Sabah,Sabah Forest Record, no.6
Chowdhury, K.A., Ghosh, S.S.,1958,Indian Woods: Their identification, properties and uses Vol. I,Dilleruaceae to Elaeocarpaceae,Manager of Publications, Delhi, India
Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.
Clifford, N.,1957,Timber Identification for the Builder and Architect,Leonard Hill (Books) LTD. London
Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15
Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. London
Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.
Limaye, V.D.,1933,The Physical and Mechanical Properties of woods grown in India (Third,Interim Report on Project 1,Indian Forest Records,18(10,pp1-70
Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols
Sono, P.,1974,Merchantable Timbers of Thailand.,Forest Products Research Division, Royal Forest Department, Bangkok,,Thailand.
Titmuss, F.H.,1965,Commercial Timbers of the World,Technical Press Ltd., London, 3rd edition
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