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Bluegum
Bluegum (Eucalyptus globulus)

Family: Myrtaceae

Common names: Bloekom, Blue gum, Bluegum, Eucalipto, Eucalyptus, Eurabbi, Eurabbie, Fever tree, Kupoora maram, Kurpoora maram, Southern blue gum, Tasmanian blue eucalyptus, Tasmanian blue gum, Tasmanian bluegum

Distributed in: Argentina, Australia, Brazil, Chile, Ethiopia, Hawaii [US], India, South Africa, United States (Africa, Latin America, North America, Oceania and S.E. Asia)

Distribution overview: Native to the open forests of Tasmania, southern Victoria and New South Wales in Australia. It is one of the most widely cultivated of Australia's native trees. It can be found in parks and gardens in many parts of Australia and is well established overseas (eg. Algeria, Brazil, France, India, Spain and Portugal). In California it is so well known that many regard it as a native Californian species.

Common uses: Agricultural implements, Beams, Boat building (general), Boat building: decking, Boat building: framing, Boxes and crates, Bridge construction, Building construction, Cabin construction, Cabinetmaking, Charcoal, Chemical derivatives, Concrete formwork, Construction, Decks, Domestic flooring, Factory construction, Flooring, Flooring: commercial heavy traffic, Form work, Foundation posts, Framing, Fuelwood, Furniture, Handles: general, Heavy construction, Joinery, Joists, Ladders, Light construction, Marine construction, Mine timbers, Pallets, Parquet flooring, Piling, Plywood, Poles, Porch columns, Posts, Pulp/Paper products, Pulpwood, Railroad ties, Rough construction, Stakes, Structural plywood, Structural work, Sub-flooring, Tool handles, Toys, Turnery, Utility plywood, Vehicle parts, Veneer, Veneer: decorative, Wharf construction, Wheel spokes, Wheels

Environment profile: Status has not been officially assessed

Tree size: Tree height is 30-40 m

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodSapwood is considered narrow , White to yellow.The grain isWith distinct light and dark bands, the textureMedium coarse and the lusterSlightly lustrous

Natural durability: Very durable, Very durable

Odor: No specific smell or taste

Kiln Schedules: UK=C US=T3C2/T3C1 Fr=3

Kiln Drying Rate: Naturally dries slowly

Drying Defects: Slight end splitting, Slight twist/warp

Ease of Drying: Slowly

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good

Boring: Easy

Carving: Fairly good response to preservative treatment

Cutting Resistance: Presence of interlocked grain

Gluing: Easy to glue

Mortising: Responds well to peeling after proper softening

Moulding: Easy to mould

Movement in Service: Easy to mould

Nailing: Difficult to nail, Easy to nail

Planing: Torn grain is common machining defect Clear stock generally responds readily to planing operationS/There may be some grain tearing in planing material with interlocked grain, but clear stock generally responds readily to planing operations.

Resistance to Impregnation: Sapwood is treatable

Resistance to Splitting: Poor

Response to hand tools: Responds well to hand tools

Routing recessing: Clear stock is easy to work Interlocked grain may interfere with routing

Sanding: Easy to sand

Veneering qualities: Easy to cut, Suitable for peeling

Steam bending: Good

Screwing: Easy to screw ; Turning: Good results

Polishing: High polish ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,62
Density 817 kg/m3
Bending Strength 832 1301 kg/cm2
Crushing Strength 466 735 kg/cm2
Hardness 882 kg
Impact Strength 119 cm
Shearing Strength 136 kg/cm2
Stiffness 153 182 1000 kg/cm2
Tangential Shrinkage 10 %
Radial Shrinkage 6 %
Weight 801 657 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 11840 18508 psi
Density 51 lbs/ft3
Hardness 1945 lbs
Impact Strength 47 inches
Maximum Crushing Strength 6642 10465 psi
Shearing Strength 1945 psi
Stiffness 2179 2602 1000 psi
Specific Gravity 0.62
Weight 50 41 lbs/ft3
Radial Shrinkage 6 %
Tangential Shrinkage 10 %
Volumetric Shrinkage 15 %

Shrinkage, Tangential = large 0
Max. crushing strength = high
Density (dry weight) = 46-52 lbs/cu. ft.
Max. crushing strength = medium
Bending strength (MOR) = high
Shearing strength (parallel to grain) = medium
Hardness (side grain) = medium
Density (dry weight) = 53-60
Bending strength (MOR) = medium
Shrinkage, Tangential = fairly large
Shearing strength (parallel to grain) = very low
Shearing strength (parallel to grain) = low
Shearing strength (parallel to grain) = high
Modulus of Elasticity (stiffness) = high
Max crushing strength (stiffness) = very high
Hardness = medium
Density (dry weight) = 38-45 lbs/cu. ft.

Australia - Forestry and Timber Bureau,1957,Forest Trees of Australia,Australia Interior Department, Forestry and Timber BureauBanks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48Banks, C.H.,1954,The Mechanical Properties of Timbers with Particular Reference to those,grown in the Union of South Africa,Journal of the South African Forestry Association,No. 24 pp.44-65,[South,African Forestry Journal]Banks, C.H.,1970,The Durability of South African Wood and Wood Base Building Materials,South African Forestry Journal,No.75Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBolza, E., Kloot, N.H.,1963,The Mechanical Properties of 174 Australian Timbers,C.S.I.R.O. Division of Forest Products Technological Paper,No.25Brown, W.H.,1978,Timbers of the World, No. 8 Australasia,TRADA, Red Booklet SeriesChilean Forestry News,1941,Propiedades Fisicas y Mecanicas de las Maderas Chilenas,Min. de Terras y Colonizacion Chile, Dept. de Bienes Nacionales (Seccion,Bosqye, 103ppChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Dave Faison. Into the Woods. Personal Communication, 1993.Dudek, S.,1981,Lesser Known Liberian Timber Species,German Agency for Technical Cooperation GermanyElliot, C.S.,1959,Eucalyptus in Argentina,Unasylva 13(3) pp119-23France - C.T.F.T.,1965,Note sur le sechage des bois presentant du collapse tel que Eucalyptus,globulus,C.T.F.T. Information Technique NO.219Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonGay, F.J., Et al,1955,Standard laboratory colonies of termites for evaluating the resistance of,timber, timber preservatives and other materials to termite attack.,C.S.I.R.O., Australia Bulletin,No.277Gutierrez Oliva, A., Plaza Pulgar, F.,1967,Caracteristicas fisico-mecanicas de las maderas Espanolas. (Physical and,mechanical properties of Spanish timbers.,Min.Agric./Dir.Gen Montes/Instituto Forestral de Investigaciones,y,Experiencias, Madrid pp102Guyana Forest Department,1967,Recopilacion de Propiedadas mecanicas de Maderas Creciendo en,Chile,Inst. For. Chile Nota Tecnica,8Hall, N., Et al,1970,Forest Trees of Australia,Australian Government Publishing Service, CanberraHarrar, E.S.,1942,Some Physical Properties of Modern Cabinet Woods 3. Directional and Volume,Shrinkage,Tropical Woods,9(71, pp26-32Hillis, W.E. and A.G. Brown, Editors. 1984. Eucalyptus for Wood Production. Commonwealth Scientific and Industrial Research Organization, Academic Press, Australia.Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1Kingston, R.S.T., Risdon, C.J.E.,1961,Shrinkage and Density of Australian and other South-West Pacific Woods,C.S.I.R.O. Division of Forest Products Technological Paper No.13Kloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12Kribs, D.A.,1950,Commercial and Foreign Woods on the American Market (a manual to their,structure, identification, uses and distribution,U.S.A. Penn. State College, Tropical Woods LaboratoryLittle, E.L.,1948,A Collection of Tree Specimens from Western Ecuador,Caribbean Forester,9(3,pp215-98Logan, W.E.M.,1946,An Introduction to the Forests of Central and Southern Ethiopia,Imperial Forestry Institute, Oxford Paper No.24Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Nation Research Council,1980,Firewood Crops Shrub and Tree Species for Energy Production,National Academy of Sciences, Washington D.C.Poynton, R.J.,1957,Notes on Exotic Forest Trees in South Africa (Second Edition, Revised,South African Forestry Department Bulletin No.38Purkayastha, S.K.,1982,Indian woods: Their identifications, properties and uses, Vol. IV,Myrlacene to Symploceae,Controller of Publications, New DelhiRendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonSallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.Sao Paulo - Instituto de Pesquisas Tecnologicas,1956,Tabelas de Resultados obtidos para Madeiras Nacionais,Inst. Pesq. Tec. Sao Paulo, Brazil Bol., No.31(2nd Ed.)Scott, M.H.,1935,Weights of South African Growth Timbers,South African Department of Agriculture and Forestry Bulletin,No.145,Forest Products Institute, Forestry Series No.1Sekhar, A.C.,1967,Some Indian Timbers Equivalent to Foreign Timbers,Van Vigyan 5(1&2,pp18-24Shukla, N.K. and Rajput, S.S.,1983,Physical and Mechanical Properties of Eucalypts grown in India,Indian Forester 109(112) 933-43Simpfendorfer, K.J.,1975,An Introduction to trees for South Eastern Australia,Inkata Press, Melbourne, AustraliaSkolmen, R.G.,1974,Some woods of Hawaii, properties and uses of 16 commercial species,U.S.A. Department of Agriculture, Forest Service, Pacific Southwest Forest,and Range Experiment Station, General Technical Report PSW_8Streets, R.J.,1962,Exotic Forest Trees in the British Commonwealth,Clarendon Press OxfordTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7The Australian Timber Journal & Building Products, Merchandiser,1969,Timber Durability and Preservation,Supplement to Australian Timber Journal 35(4) Tech. Timb. Guide No.8Thomas, A.J.,1955,Tasmanian Woods,Forestry Department Tasmania, Bulletin No.1Wallis, N.K. 1956. Australian Timber Handbook. Sponsored by The Timber Development Association of Australia. Angus & Robertson, Ltd., 89 Castlereagh Street, Sydney, Australia.
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