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Blue Sydney gum
Blue Sydney gum (Eucalyptus saligna)

Family: Myrtaceae

Common names: Blue gum, Blue Sydney gum, Eastern blue gum, Eucalyptus, Eucalyptus colorado, Flooded gum, Grandis gum, Kiviny, Rose gum, Saligna, Saligna gom, Saligna gum, Saligna-gom, Saligua gum, Sydney blue gum

Distributed in: Argentina, Australia, Brazil, Hawaii [US], Kenya, Madagascar, New Zealand, South Africa, Tanzania, Uganda (Africa, Latin America, Oceania and S.E. Asia)

Common uses: Boat building (general), Boat building: framing, Boxes and crates, Chairs, Charcoal, Chemical derivatives, Decks, Flooring, Flooring: commercial heavy traffic, Fuelwood, Furniture, Handles: general, Handles: woodworking tools, Heavy construction, Joinery, Light construction, Mine timbers, Paneling, Particleboard, Plywood corestock, Plywood, Poles, Posts, Pulp/Paper products, Railroad ties, Shingles, Sporting Goods, Tables, Tool handles, Toys, Vehicle parts, Veneer, Veneer: decorative

Tree size: Tree height is 20-30 m

Colors: the heart isWhite, White to creamand the sapwoodPaler than heartwood, White to yellow.The grain isWavy, the textureUniformand the lusterLow

Natural durability: Susceptible to marine borer attack, Very durable

LightInduced Color Change: Darker

Kiln Schedules: Uk = C

Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)

Drying Defects: Moderate twist/warp, Splitting

Ease of Drying: Thick Stock Requires Care

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good

Blunting Effect: Blunting effect on machining is slight

Boring: Moderately easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Easy to saw

Gluing: Moderate gluing properties

Mortising: Fairly Easy to Very Easy

Moulding: Good finishing

Movement in Service: Good finishing

Nailing: Pre-Boring Recommended, Pre-boring recommended

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is permeable

Resistance to Splitting: Poor

Response to hand tools: Responds Readily

Routing recessing: Fairly Easy to Very Easy

Sanding: Good sanding finish

Veneering qualities: Moderately easy to veneer, Suitable for slicing

Steam bending: Moderate

Screwing: Possible if prebored, Pre-boring recommended; Turning: Very Good to Excellent Results

Painting: Satisfactory; Polishing: Satisfactory; Staining: Finish is generally satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 769 kg/m3
Bending Strength 780 1204 kg/cm2
Crushing Strength 439 647 kg/cm2
Hardness 577 kg
Impact Strength cm
Shearing Strength 135 kg/cm2
Stiffness 131 152 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 5 %
Weight 753 608 kg/m3
Maximum Load 0,63 0,84 cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 11101 17131 psi
Density 48 lbs/ft3
Hardness 1273 lbs
Maximum Crushing Strength 6249 9207 psi
Shearing Strength 1921 psi
Stiffness 1876 2163 1000 psi
Work to Maximum Load 9 12 inch-lbs/in3
Weight 47 38 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 14 %

Max. crushing strength = high 1
Shrinkage, Tangential = large
Bending strength (MOR) = medium
Density (dry weight) = 46-52 lbs/cu. ft.
Shrinkage, Volumetric = large
Shrinkage, Tangential = fairly large
Bending strength (MOR) = high
Hardness (side grain) = soft
Hardness (side grain) = medium
Shrinkage, Tangential = moderate
Density (dry weight) = 38-45 lbs/cu. ft.
Bending strength (MOR) = low
Shrinkage, Tangential = small
Bending strength (MOR) = very low

Anderson, R.H.,1947,The Trees of New South Wales,New South Wales Department of AgricultureBanks, 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.75Berni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchBier, H.,1983,The strength properties of small clear specimens of New Zealand-grown,timber,New Zealand Forest Service Forest Research Institute, FRI Bulletin No.41Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35Bolza, 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.25Bootle, K.R.,1971,The Commercial Timbers of New South Wales and their use,Angus & Robertson (publishers) PTY LtdBrown, W.H.,1978,Timbers of the World, No. 8 Australasia,TRADA, Red Booklet SeriesCause, M.L., Et al,1974,The Nomenclature, Density and Lyctus - Susceptibility of Queensland,Timbers,Queensland Forestry Department Pamphlet 13Elliot, C.S.,1959,Eucalyptus in Argentina,Unasylva 13(3) pp119-23Evreinoff, V.A.,1947,Le Caraoubier ou Ceratonia siliqua L.,Rev. Int. Bot. Appl. Agric. Trop. 27 pp389-401Farmer, R.H.,1972,Handbook of Hardwoods,HMSOForestry Commission of New South Wales,1987,Timbers used in New South Wales for Domestic Buildings,Forestry Commission of New South Wales, Technical Publication No.6Gay, 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.277Gerhards, C.C.,1963,Some Strength and Related Properties of Green Wood of Hawaiian Eucalyptus,saligna,Forest Products Laboratory, Forest Service, U.S. Department of,Agriculture, Research Note No. FPL-09Hall, N., Et al,1970,Forest Trees of Australia,Australian Government Publishing Service, CanberraHaslett, A.N., Kininmonth, J.A., Revell, D.,1984,Utilisation of New Zealand-grown Eucalypts,What's New in Forest Research No.122Haslett, A.N.,1988,Properties and utilisation of exotic speciality timbers grown in New,Zealand Part V: Ash Eucalypts and Eucalyptus nitens E. regans,,E.delegatensis, E.fastigata, E.obliqua, E.sieberi, E.fraxinoides, E.nitens,New Zealand Forest Service, Forest Research Institute, FRI Bulletin No.119Haslett, A.N.,1990,Properties and utilisation of exotic speciality timbers grown in New,Zealand Part VI: Eastern Blue Gums and Stringy Barks Eucalyptus,botryoides, E.saligna, E.globoidea, E.muellerana, E.pilaruis,New Zealand Forest Service, Forest Research Institute, FRI Bulletin No.119Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.I. Soerianegara and R.H.M.J. Lemmens (Editors,1993,Plant Resources of South-East Asia 5,(PROSEA, 1,Timber trees: Major commercial timbers,Pudoc Scientific Publishers, Wageningen 1993Keating, 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.12Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Petroff, G., Et al,1968,Caracteristiques papeti￿es de quelques essences tropicales de reboisement,Vol. III,C.T.F.T. Publication No.31Petroff, G.,1965,Etude papeti￿e de Queslques Echantillons d'Eucalyptus congolais,Bois et Forets des Tropiques,No.103 pp27-38Rendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonSallenave, P.,1964,Proprietes Physiques et Mecaniques des Bois Tropicaux (Premier Supplement,C.T.F.T. Publ.,no.23Sallenave, 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.1Scott, M.H.,1953,Utilisation Notes on South African Timbers,South African Forestry Department Bulletin No.36Simpfendorfer, 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_8South African Lumber Millers Assoc.,1969,Notes on some Commercially Available Hardwoods,S.A.L.M.A. Timber Info. Centre Timber Technical Guide,No.1Streets, 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. 7Tanzania Forest Division,1966,Kiln Drying Schedules for Tanzania Timbers Technical Note no.38,Tanzania Forest Div. Util. Sec. MoshiThe Australian Timber Journal & Building Products, Merchandiser,1969,Timber Durability and Preservation,Supplement to Australian Timber Journal 35(4) Tech. Timb. Guide No.8Uganda Forest Department,1954,The Mechanical Properties of some Ugandan Timbers,Uganda Forest Department Timber Leaflet,No.1
*Come interpretare i dati (manleva su eventuali imprecisioni)