Crows ash (Flindersia australis)
Family: Rutaceae
Common names: Australian maple, Crows ash, Flindersia, Flindosy, New guinea silkwood, Queensland maple, Silkwood, Silkwood maple
Distributed in: Australia, Papua New Guinea (Oceania and S.E. Asia)
Distribution overview: In Australia, from Nymboida River, NSW to Mackay, Queensland.
Common uses: Bedroom suites, Building materials, Cabinetmaking, Chairs, Chests, Decorative veneer, Desks, Dining-room furniture, Drawer sides, Drum sticks, Excelsior, Figured veneer, Fine furniture, Furniture , Gunstocks, Interior construction, Joinery, Kitchen cabinets, Living-room suites, Musical instruments , Office furniture, Organ pipes, Paneling , Piano keys, Pianos , Radio - stereo - TV cabinets, Rifle stock, Sounding boards, Veneer, Violin bows, Violin, Wainscotting, Wardrobes, Xylophones
Environment profile: Status has not been officially assessed
Tree size: Tree height is 20-30 m
Colors: the heart isPale red to pink, Yellowand the sapwoodWhite, Yellow.The grain isWavy, the textureCoarse
He wood has a medium and uniform texture
and the lusterSilky luster
Natural durability: Susceptible to insect attack, Very little natural resistance
Odor: Slightly scented
Kiln Schedules: T3-C2(4/4) US
Drying Defects: Slight twist/warp, Splitting
Ease of Drying: Satisfactorily with little degrade
Blunting Effect: Moderate
Boring: Fairly easy to very easy
Carving:
Arving characteristics are good
Cutting Resistance: Sawing properties are good
Gluing: Glues well
Mortising: Poor to Very Poor
Moulding: Material responds well to moulding operations
Movement in Service: Material responds well to moulding operations
Nailing: Pre-Boring Recommended, Very Good to Excellent
Planing: Torn grain is common machining defect
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds well to hand tools
Routing recessing: Routing is easy
Sanding: Fairly Difficult to Very Difficult
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Very Good to Excellent Results
Screwing: Pre-boring recommended
; Turning: Very good
Polishing: Good; 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 |
0,41 |
|
|
Density |
|
544 |
kg/m3 |
Bending Strength |
1095 |
1371 |
kg/cm2 |
Crushing Strength |
94 |
132 |
kg/cm2 |
Hardness |
|
948 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
92 |
kg/cm2 |
Stiffness |
156 |
168 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
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|
% |
Weight |
|
|
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
224 |
cm-kg |
Static Bending |
683 |
902 |
kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 15582 | 19502 | psi | Crushing Strength | 1348 | 1882 | psi | Density | | 34 | lbs/ft3 | Hardness | | 2092 | lbs | Maximum Crushing Strength | 7713 | 10388 | psi | Shearing Strength | | 1313 | psi | Static Bending | 9722 | 12838 | psi | Stiffness | 2225 | 2401 | 1000 psi | Toughness | | 195 | inch-lbs | Specific Gravity | 0.41 | | | Weight | 33 | 27. | lbs/ft3 | |
Bolza, E. and N.H. Kloot.1963.The Mechanical Properties of 174 Australian Timbers.Division of Forest Products Technological Paper No. 25.Commonwealth Scientific and Industrial Research Organization, Melbourne, Australia.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Wallis, 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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