Eucalyptus globulus (Bluegum )


Add to Favourite

Use the following links to jump to the associated section in the main data.

Scientific Name
Eucalyptus globulus

Trade Name
Bluegum

Family Name
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

Plantation species?
Yes

Regions of Distribution
Africa, Latin America, North America, Oceania and S.E. Asia

Countries of Distribution  [VIEW MAP]
Argentina, Australia, Brazil, Chile, Ethiopia, Hawaii [US], India, South Africa, United States

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

Environmental Profile

Status has not been officially assessed

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.

Heartwood Color

Yellow
Red
Brown
Orange
Pink
Yellow to golden-yellow to orange
Pale brown
Pale red to pink
Greenish to greyish
Dark cream
Brown

Sapwood Color

Paler than heartwood
White to yellow
Sapwood is considered narrow
Pale cream
Grayish white

Grain

Interlocked
Wavy
Straight
Even
Figure
Spiral
Closed
Crossed
Rippled (figure)
Growth rings (figure)

 

Interlocked
Wavy
Straight
With distinct light and dark bands
Spiral
Spiral grain occasionally
Rippled figure

Bees wing’ curl figure is fairly common.

Texture

Fine
Medium coarse
Medium
Fairly open

Luster

Dull
Slightly lustrous
Lustrous

Natural Growth Defects

Brittleheart is often frequent and extensive
Gum/resin exudation

Natural Durability

Durable
Susceptible to insect attack
Resistant to powder post beetles
Non-resistant to termites
Moderately durable
Moderately durable
Susceptible to attack from termites (Isoptera)
Susceptible to attack from powder post (Lyctid & Bostrychid) beetles
Resistant to attack from marine borers
Non durable
Durable
Susceptible to marine borer attack
Non durable
Moderately durable
Durable
Very durable
Very durable
Sapwood susceptible to attack by powder post beetles
Resistant to attack from termites (Isoptera)
Resistant to attack from powder post (Lyctid & Bostrychid) beetles
Perishable
Perishable
Moderately resistant to decay
Durable

Sapwood is liable to be attacked by powder-post beetles and termites.

Odor

No specific smell or taste

Kiln Schedules

UK=C US=T3C2/T3C1 Fr=3
T3-C2(4/4) US
Dry at a slow speed

Moisture content of 20% is recommended

Drying Defects

Moderate twist/warp
Moderate surface checking
Moderate collapse and honeycombing
No collapse/honeycomb
Expect slight collapse and honeycombing
Slight twist/warp
Moderate end spitting
Slight end splitting
Severe twisting/warping

Ease of Drying

Slowly
Difficult
Partial air-seasoning before kiln-drying is recommended

Quartersawn stock is reported to degrade to a lesser degree

Kiln Drying Rate

Naturally dries slowly

Tree Identification

Bole/stem form is straight

Tree Size

Tree height is 10-20 m
Tree height is 20-30 m
Tree height is 30-40 m

Product Sources

Comments
General finishing qualities are rated as good

Boring

Easy

Carving

Fairly good response to preservative treatment

Cutting Resistance

Cutting Resistance with dry wood is easy
Presence of interlocked grain
Possible splitting during initial stages of sawing
Described as heavy
Cutting Resistance with green wood is easy
Cutting Resistance with green wood is difficult

Gluing

Easy to glue

Mortising

Responds well to peeling after proper softening
Free of Interlocking Grain

Moulding

Easy to mould

Movement in Service

Unstable in service
Prone to movement
Large

Nailing

Easy to nail
Difficult 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

Heartwood is extremely resistant
Sapwood is permeable
Heartwood is resistant
Sapwood is treatable
Sapwood is moderately resistant
Heartwood is generally difficult to treat

Resistance to Splitting

Poor

Response to Hand Tools

Fairly Difficult to Difficult to Work
Easy to machine
Difficult to machine
Responds well to hand tools
Moderate working qualities

Routing & Recessing

Clear stock is easy to work

Interlocked grain may interfere with routing

Sanding

Easy to sand

Screwing

Easy to screw

Turning

Good results
Especially good in material free from interlocked grain

Veneering Qualities

Easy to cut
Suitable for peeling
Drying degrade is moderate to severe, with collapse, buckles, and splits

Steam Bending

Good

Polishing

High polish

Strength Properties

Shrinkage, Tangential = large
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.

Numerical Data

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 %
Item Green Dry Metric
Bending Strength 832 1301 kg/cm2
Density 817 kg/m3
Hardness 882 kg
Impact Strength 119 cm
Maximum Crushing Strength 466 735 kg/cm2
Shearing Strength 136 kg/cm2
Stiffness 153 182 1000 kg/cm2
Specific Gravity 0.62
Weight 801 657 kg/m3
Radial Shrinkage 6 %
Tangential Shrinkage 10 %

References
Australia – Forestry and Timber Bureau,1957,Forest Trees of Australia,Australia Interior Department, Forestry and Timber Bureau

Banks, 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.48

Banks, 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.75

Bolza, E., Keating, W.G.,1972,African Timbers – the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research

Bolza, E., Kloot, N.H.,1963,The Mechanical Properties of 174 Australian Timbers,C.S.I.R.O. Division of Forest Products Technological Paper,No.25

Brown, W.H.,1978,Timbers of the World, No. 8 Australasia,TRADA, Red Booklet Series

Chilean Forestry News,1941,Propiedades Fisicas y Mecanicas de las Maderas Chilenas,Min. de Terras y Colonizacion Chile, Dept. de Bienes Nacionales (Seccion,Bosqye, 103pp

Chudnoff, 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 Germany

Elliot, C.S.,1959,Eucalyptus in Argentina,Unasylva 13(3) pp119-23

France – 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.219

Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. London

Gay, 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.277

Gutierrez 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 pp102

Guyana Forest Department,1967,Recopilacion de Propiedadas mecanicas de Maderas Creciendo en,Chile,Inst. For. Chile Nota Tecnica,8

Hall, N., Et al,1970,Forest Trees of Australia,Australian Government Publishing Service, Canberra

Harrar, E.S.,1942,Some Physical Properties of Modern Cabinet Woods 3. Directional and Volume,Shrinkage,Tropical Woods,9(71, pp26-32

Hillis, 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,1

Kingston, 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.13

Kloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12

Kribs, 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 Laboratory

Little, E.L.,1948,A Collection of Tree Specimens from Western Ecuador,Caribbean Forester,9(3,pp215-98

Logan, W.E.M.,1946,An Introduction to the Forests of Central and Southern Ethiopia,Imperial Forestry Institute, Oxford Paper No.24

Murira, 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.38

Purkayastha, S.K.,1982,Indian woods: Their identifications, properties and uses, Vol. IV,Myrlacene to Symploceae,Controller of Publications, New Delhi

Rendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. London

Sallenave, 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.1

Sekhar, A.C.,1967,Some Indian Timbers Equivalent to Foreign Timbers,Van Vigyan 5(1&2,pp18-24

Shukla, N.K. and Rajput, S.S.,1983,Physical and Mechanical Properties of Eucalypts grown in India,Indian Forester 109(112) 933-43

Simpfendorfer, K.J.,1975,An Introduction to trees for South Eastern Australia,Inkata Press, Melbourne, Australia

Skolmen, 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_8

Streets, R.J.,1962,Exotic Forest Trees in the British Commonwealth,Clarendon Press Oxford

Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7

The Australian Timber Journal & Building Products, Merchandiser,1969,Timber Durability and Preservation,Supplement to Australian Timber Journal 35(4) Tech. Timb. Guide No.8

Thomas, A.J.,1955,Tasmanian Woods,Forestry Department Tasmania, Bulletin No.1

Wallis, N.K. 1956. Australian Timber Handbook. Sponsored by The Timber Development Association of Australia. Angus & Robertson, Ltd., 89 Castlereagh Street, Sydney, Australia.