Blackbutt (Eucalyptus pilularis)
Family: Myrtaceae
Common names: Blackbutt, Eucalyptus, Grey blackbutt, Pilularis gum
Distributed in: Australia, Brazil, Hawaii [US], Kenya, Madagascar, Nigeria, South Africa, Sri Lanka (Africa, Latin America, Oceania and S.E. Asia)
Common uses: Agricultural implements, Bearings & bushings, Boat building (general), Boat building: framing, Boxes and crates, Bridge construction, Cabinetmaking, Charcoal, Decks, Door, Flooring, Flooring: commercial heavy traffic, Fuelwood, Furniture, Handles: general, Heavy construction, Joinery, Ladders, Light construction, Mine timbers, Paneling, Particleboard, Plywood, Poles, Posts, Pulp/Paper products, Railroad ties, Sporting Goods, Structural work, Tool handles, Turnery, Vehicle parts, Veneer, Veneer: decorative
Tree size: Trunk diameter is 150-200 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite, Yellow.The grain isWavy, the textureMedium coarse and the lusterStraight
Natural durability: Susceptible to marine borer attack, Very durable
Kiln Schedules: UK=C US=T3C2/T3C1 Fr=3
Kiln Drying Rate: Naturally dries at a moderate speed
Drying Defects: Moderate twist/warp, Severe surface checking
Ease of Drying: Slowly
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good
Blunting Effect: Yellowish
Boring: Yellowish
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Moderate gluing properties
Nailing: Pre-Boring Recommended, Pre-boring recommended
Planing: Poor to Very Poor
Resistance to Impregnation: Sapwood is moderately resistant
Response to hand tools: Moderate working qualities
Routing recessing: Fair to Good Results
Sanding: Easy to sand
Veneering qualities: Suitable for peeling
Steam bending: Poor
Screwing: Possible if prebored, Pre-boring recommended;
Painting: Susceptible to insect attack; Polishing: Satisfactory; Staining: Finish is generally satisfactory
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- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
833 |
kg/m3 |
Bending Strength |
932 |
1422 |
kg/cm2 |
Crushing Strength |
495 |
711 |
kg/cm2 |
Hardness |
|
711 |
kg |
Impact Strength |
|
71 |
cm |
Shearing Strength |
|
151 |
kg/cm2 |
Stiffness |
149 |
172 |
1000 kg/cm2 |
Tangential Shrinkage |
9 |
|
% |
Radial Shrinkage |
5 |
|
% |
Weight |
817 |
657 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 13258 | 20226 | psi | Density | | 52 | lbs/ft3 | Hardness | | 1569 | lbs | Impact Strength | | 28 | inches | Maximum Crushing Strength | 7048 | 10119 | psi | Shearing Strength | | 2151 | psi | Stiffness | 2129 | 2457 | 1000 psi | Weight | 51 | 41 | lbs/ft3 | Radial Shrinkage | 5 | | % | Tangential Shrinkage | 9 | | % | Volumetric Shrinkage | 13 | | % | |
Max. crushing strength = high 0 Density (dry weight) = 53-60 0 Bending strength (MOR) = high 0 Hardness (side grain) = medium 0 Shrinkage, Tangential = large 1 Density (dry weight) = 46-52 lbs/cu. ft. 1 Shearing strength (parallel to grain) = medium 0 Shrinkage, Radial = fairly large Shrinkage, Tangential = fairly large Bending strength (MOR) = medium Shrinkage, Tangential = moderate Density (dry weight) = 61< Shearing strength (parallel to grain) = low Bending strength (MOR) = very low Shrinkage, Radial = small Shearing strength (parallel to grain) = high
Anderson, R.H.,1947,The Trees of New South Wales,New South Wales Department of AgricultureAustralia - 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]Berni, 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 ResearchBolza, 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.; Rudder, E.J. and Kynaston, W.T.,1989,Queensland Timbers Their Nomenclature, Density, and Lyctid Susceptability,Queensland Department of Forestry, Technical Pamplet No.2Cause, M.L., Et al,1974,The Nomenclature, Density and Lyctus - Susceptibility of Queensland,Timbers,Queensland Forestry Department Pamphlet 13Clifford, N.,1953,Commercial Hardwoods - Their Characteristics Identification and,Utilization,Sir Isaac Pitman & Sons Ltd. LondonClifford, N.,1957,Timber Identification for the Builder and Architect,Leonard Hill (Books) LTD. LondonFarmer, 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.6Fouarge, J.,1970,Essais Physiques,Mecaniques et de Durabilite de Bois de la Republique,Democratique du Congo,I.N.E.A.C. Belgium Serie Technique,No.76Gay, 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.277Hall, N., Et al,1970,Forest Trees of Australia,Australian Government Publishing Service, CanberraHaslett, 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.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.12Lavers, G.M.,1983,The Strength Properties of Timber (3rd ed. revised Moore G.L.,Forest Products Research Laboratory, Princes Risborough, Building Research,Establishment Report (formerly Bulletin No.50)Patterson, D.,1988,Commercial Timbers of the World, 5th Edition,Gower Technical PressRendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonReyes, L.J.,1938,Philippine Woods,Commonwealth of the Philippines Department of Agriculture and Commerce,Technical Bulletin,No.7Sallenave, P.,1964,Proprietes Physiques et Mecaniques des Bois Tropicaux (Premier Supplement,C.T.F.T. Publ.,no.23Sao 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.1Skolmen, 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.8Titmuss, F.H.,1965,Commercial Timbers of the World,Technical Press Ltd., London, 3rd edition
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