Australian hickory (Eucalyptus maculata)
Family: Myrtaceae
Common names: Australian hickory, Macula, Maculata, Maculata gum, Mottled bark gum, Spotted gum, Spotted iron gum
Distributed in: Australia (Oceania and S.E. Asia)
Common uses: Agricultural implements, Baseball bats, Boat building (general), Boat building: framing, Boat building: planking, Boxes and crates, Bridge construction, Broom handles, Cabinetmaking, Chairs, Charcoal, Cooperages, Decks, Flooring, Flooring: industrial heavy traffic, Furniture, Handles: general, Heavy construction, Joinery, Ladders, Light construction, Mine timbers, Piling, Plywood, Poles, Railroad ties, Sporting Goods, Tool handles, Toys, Turnery, Vehicle parts, Veneer: decorative, Wharf construction, Wheel spokes, Wheels
Tree size: Trunk diameter is 200-250 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureMedium to coarseand the lusterLustrous
Natural durability: Very durable, Very durable
Kiln Schedules: UK=C US=T3C2/T3C1 Fr=3
Kiln Drying Rate: Fairly rapid (11-17 days for boards under 32 mm, to 31-51 days for boards greater than 63 mm)
Drying Defects: Slight 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: Moderate
Boring: Fairly easy to very easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Moderate gluing properties
Mortising: Fairly Easy to Very Easy
Nailing: Pre-Boring Recommended, Pre-boring recommended
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood is resistant
Response to hand tools: Very difficult to work with hand tools
Routing recessing: Poor to Very Poor Results
Sanding: Fair to Good Results
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Tends to Degrade
Screwing: Fairly Easy to Very Easy, Pre-boring recommended; Turning: Fairly Easy to Very Easy
Painting: Good; Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
881 |
kg/m3 |
Bending Strength |
879 |
1361 |
kg/cm2 |
Crushing Strength |
485 |
699 |
kg/cm2 |
Hardness |
|
991 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
154 |
kg/cm2 |
Stiffness |
146 |
168 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
5 |
|
% |
Weight |
865 |
721 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 12510 | 19358 | psi | Density | | 55 | lbs/ft3 | Hardness | | 2185 | lbs | Maximum Crushing Strength | 6899 | 9945 | psi | Shearing Strength | | 2204 | psi | Stiffness | 2083 | 2399 | 1000 psi | Weight | 54 | 45 | lbs/ft3 | Radial Shrinkage | 5 | | % | Tangential Shrinkage | 9 | | % | |
Density (dry weight) = 46-52 lbs/cu. ft. 0 Density (dry weight) = 61< 0 Density (dry weight) = 53-60 0 Max. crushing strength = high 1 Hardness (side grain) = Hard 1 Bending strength (MOR) = high 0 Shrinkage, Tangential = large Shrinkage, Radial = fairly large Shearing strength (parallel to grain) = medium Bending strength (MOR) = medium Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Shearing strength (parallel to grain) = low Shearing strength (parallel to grain) = high Shrinkage, Tangential = moderate
Audas, J.W.,Native Trees of Australia,Whitcombe & Tombs PTY. LtdAustralia - N.S.W. Forestry Commission,1988,Furniture Timbers of New South Wales,Forest Commission, N.S.W., Aust. Tech. Publication No.1Banks, 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 ResearchBoas, I.H.,1947,The Commercial Timbers of Australia - Their Properties and Uses,Council for Scientific and Industrial Research, MelbourneBolza, 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.25Bolza, E.,1976,Timber and Health,Div. Building Res. C.S.I.R.O. AustraliaBrown, W.H.,1978,Timbers of the World, No. 8 Australasia,TRADA, Red Booklet SeriesFarmer, 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.6Forests Products Research Laboratory, U.K.,1956,A Handbook of Hardwoods,Forest Products Research Laboratory, Princes Risborough, Department of,Science and Industrial Research, Building Research EstablishmentHoward, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Queensland Department of Forestry,1987,Timber Species - Spotted Gum (Eucalyptus maculata, E. citriodora, E.,henryi,Queensland Deparment of Forestry, Timber Utilisation Branch, Timber,Species No. 14Rendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonScott, 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.36South African Lumber Millers Assoc.,1969,Notes on some Commercially Available Hardwoods,S.A.L.M.A. Timber Info. Centre Timber Technical Guide,No.1Stewart, A.M., Kloot, N.H.,1957,Mechanical Properties of Timbers,C.S.I.R.O., Australia Bulletin,No.279Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Timber Development Association,1948,Some New Timbers and Their Uses No. 34,Timber Development Association Limited, London [TRADA]
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