Eucalipto microcorys (Eucalyptus microcorys)
Family: Myrtaceae
Common names: Eucalipto microcorys, Microcorys gum, Microcorys-gom, Tallowwood
Distributed in: Australia, India, Kenya, South Africa, Sri Lanka, Uganda (Africa, Oceania and S.E. Asia)
Common uses: Boat building: decking, Bridge construction, Decks, Flooring, Flooring: industrial heavy traffic, Furniture, Handles: general, Heavy construction, Joinery (external): ground contact, Light construction, Marine construction, Piling, Poles, Posts, Railroad ties, Tool handles, Turnery, Vehicle parts, Wheel spokes, Wheels
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite, Yellow.The grain isWavy, the textureMedium coarse and the lusterLustrous
Natural durability: Susceptible to insect attack, Very durable
Kiln Schedules: UK=C US=T3C2/T3C1 Fr=3
Kiln Drying Rate: Slow (18-28 days for boards < 32 mm, to 52-84 days for boards >= 63 mm)
Drying Defects: Severe surface checking, Splitting
Ease of Drying: Variable
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good
Blunting Effect: Moderate
Boring: Easy
Cutting Resistance: Easy to saw
Gluing: Fairly Easy to Very Easy
Nailing: Holds nails well, Pre-Boring Recommended
Planing: Planes well, to a good finish
Resistance to Impregnation: Sapwood is moderately resistant
Resistance to Splitting: Poor
Response to hand tools: Moderate working qualities
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Poor to Very Poor Results
Screwing: Fairly Easy to Very Easy, Very Good to Excellent Results; Turning: Very Good to Excellent Results
Painting: Fair to Good; Polishing: Very Good to Excellent; Staining: Poor;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
881 |
kg/m3 |
Bending Strength |
1033 |
1544 |
kg/cm2 |
Crushing Strength |
519 |
738 |
kg/cm2 |
Hardness |
|
910 |
kg |
Impact Strength |
|
101 |
cm |
Shearing Strength |
|
162 |
kg/cm2 |
Stiffness |
152 |
175 |
1000 kg/cm2 |
Tangential Shrinkage |
9 |
|
% |
Radial Shrinkage |
5 |
|
% |
Weight |
865 |
737 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 14698 | 21970 | psi | Density | | 55 | lbs/ft3 | Hardness | | 2007 | lbs | Impact Strength | | 40 | inches | Maximum Crushing Strength | 7385 | 10501 | psi | Shearing Strength | | 2311 | psi | Stiffness | 2167 | 2494 | 1000 psi | Weight | 54 | 46 | lbs/ft3 | Radial Shrinkage | 5 | | % | Tangential Shrinkage | 9 | | % | Volumetric Shrinkage | 14 | | % | |
Bending strength (MOR) = high 0 Max. crushing strength = high 0 Density (dry weight) = 61< 0 Shearing strength (parallel to grain) = medium 0 Hardness (side grain) = Hard 1 Density (dry weight) = 53-60 1 Hardness (side grain) = medium Shearing strength (parallel to grain) = high Max crushing strength (stiffness) = very high Shrinkage, Tangential = large Density (dry weight) = 46-52 lbs/cu. ft. Bending strength (MOR) = medium Toughness -hammer drop = medium Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = high Shrinkage, Volumetric = large Shrinkage, Tangential = fairly large Shearing strength (parallel to grain) = low Max. crushing strength = medium Density (dry weight) = 38-45 lbs/cu. ft. Shrinkage, Tangential = small Shrinkage, Tangential = moderate Hardness (side grain) = soft Density (dry weight) = 31-37 lbs/cu. ft.
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