Prickly ash (Orites excelsa)
Family: Proteaceae
Common names: Prickly ash, Red ash, Silky oak, Southern silky oak, White beefwood
Distributed in: Australia (Oceania and S.E. Asia)
Common uses: Boat building (general), Cabinetmaking, Carvings, Cooperages, Furniture, Joinery, Paneling, Plywood, Railroad ties, Tables, Vehicle parts, Veneer
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isRed, Redand the sapwoodWhite, Yellow.The grain isStraight, the textureMedium to coarseand the lusterMedium
Natural durability: Resistant to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to insect attack
Kiln Drying Rate: Rapid
Drying Defects: Distortion, Internal Honeycombing Possible
Ease of Drying: Fairly Easy
Comments: General finishing qualities are rated as good
Boring: Fairly easy to very easy
Cutting Resistance: Easy to saw
Gluing: Fairly Easy to Very Easy
Nailing: Fair to Good , Fairly Easy to Very Easy
Planing: Fairly Easy to Very Easy
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Moderate working qualities
Screwing: Fairly Easy to Very Easy
; Turning: Easy to turn
Polishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
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592 |
kg/m3 |
Bending Strength |
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kg/cm2 |
Crushing Strength |
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kg/cm2 |
Hardness |
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kg |
Impact Strength |
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cm |
Shearing Strength |
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kg/cm2 |
Stiffness |
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1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
3 |
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% |
Weight |
576 |
464 |
kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Density | | 37 | lbs/ft3 | Weight | 36 | 29 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 10 | | % | |
Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 31-37 lbs/cu. ft. Shrinkage, Tangential = large Shrinkage, Radial = very small Shrinkage, Radial = small Shrinkage, Radial = moderate
Anderson, R.H.,1947,The Trees of New South Wales,New South Wales Department of AgricultureAudas, 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.1Bootle, K.R.,1971,The Commercial Timbers of New South Wales and their use,Angus & Robertson (publishers) PTY LtdFrancis, W.D.,1951,Australian Rain-forest Trees,Commonwealth of Australia - Forestry and Timber Bureau
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