Red mahogany (Eucalyptus resinifera)
Family: Myrtaceae
Common names: Australian red mahogany, Eucalipto, Eucalipto medicinal, Eucalypt, Eucalyptus, Kino eucalyptus, Kino gum eucalyptus, Red mahogany, Red mahogany eucalyptus, Red messmate, Red stringybark, Resinifera gum
Distributed in: Australia (Oceania and S.E. Asia)
Distribution overview: Occurs from Jervis Bay in New South Wales to Coen in Queensland, Australia.
Common uses: Agricultural implements, Bedroom suites, Boat building (general), Boat building, Boxes and crates, Brush backs & handles, Building construction, Building materials, Cabin construction, Cabinetmaking, Canoes, Carvings, Charcoal, Construction, Core Stock, Decorative plywood, Decorative veneer, Domestic flooring, Drawer sides, Excelsior, Factory construction, Factory flooring, Figured veneer, Flooring, Flooring: commercial heavy traffic, Flooring: industrial heavy traffic, Fuelwood, Furniture , Furniture, Heavy construction, Joinery (external): ground contact, Joinery, Kitchen cabinets, Lifeboats, Light construction, Living-room suites, Mine timbers, Office furniture, Paneling, Parquet flooring, Particleboard, Piling, Plain veneer, Plywood, Poles, Pulp/Paper products, Radio - stereo - TV cabinets, Railroad ties, Shipbuilding, Structural plywood, Sub-flooring, Tables, Turnery, Utility plywood, Vehicle parts, Veneer
Environment profile: Status has not been officially assessed
Tree size: Tree height is 30-40 m
Colors: the heart isRed, Reddish brownand the sapwoodPale cream , Paler than heartwood.The grain isRippled figure, the textureMedium coarse
Natural durability: Susceptible to attack from termites (Isoptera), Susceptible to marine borer attack
Odor: No specific smell or taste
Kiln Schedules: Kiln Drying Rate (in days) is fairly rapid
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 surface checking, Slight twist/warp
Ease of Drying: Easy
Comments: General finishing qualities are rated as good Hard and strong Stiff, yields oil high in cineolTough
Cutting Resistance: Saws cleanly with moderate blutning of cutting edges
Planing: Response to hand and machine tools is fairly good
Resistance to Impregnation: Sapwood is permeable
Response to hand tools: Moderate working qualities
Sanding: Contains alkaloids giving it good acid resistance
Painting: Little or no surface prep required; Polishing: Responds well to peeling after proper softening ;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
929 |
kg/m3 |
Bending Strength |
883 |
1362 |
kg/cm2 |
Crushing Strength |
110 |
150 |
kg/cm2 |
Hardness |
|
998 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
152 |
kg/cm2 |
Stiffness |
143 |
167 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
4 |
|
% |
Weight |
865 |
705 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
190 |
cm-kg |
Static Bending |
578 |
868 |
kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 12563 | 19384 | psi | Crushing Strength | 1568 | 2136 | psi | Density | | 58 | lbs/ft3 | Hardness | | 2201 | lbs | Maximum Crushing Strength | 6891 | 10281 | psi | Shearing Strength | | 2169 | psi | Static Bending | 8222 | 12348 | psi | Stiffness | 2044 | 2383 | 1000 psi | Toughness | | 165 | inch-lbs | Weight | 54 | 44 | lbs/ft3 | Radial Shrinkage | 4 | | % | Tangential Shrinkage | 8 | | % | |
Max. crushing strength = high 0 Density (dry weight) = 53-60 1 Shrinkage, Radial = small Bending strength (MOR) = medium Shrinkage, Tangential = moderate Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Shrinkage, Tangential = small Shrinkage, Tangential = large Density (dry weight) = 46-52 lbs/cu. ft. Bending strength (MOR) = low Shrinkage, Radial = very small Max crushing strength (stiffness) = very high Hardness (side grain) = medium Density (dry weight) = 38-45 lbs/cu. ft. Bending strength (MOR) = very low
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.48Berni, 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.25Gay, 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.277Hillis, W.E. and A.G. Brown, Editors. 1984. Eucalyptus for Wood Production. Commonwealth Scientific and Industrial Research Organization, Academic Press, Australia.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,1Scott, 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.1Takahashi, 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.8Wallis, 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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