Kamatog (Erythrophloeum densiflorum)
Family:
Common names: Abbihal, Batik, Kadir, Kalamatau, Kamatog, Ngirik-ngirik, Pali, Salsal, Takloban
Distributed in: Philippines (Oceania and S.E. Asia)
Distribution overview: Philippines
Common uses: Beams, Building construction, Building materials, Cabinetmaking, Ceiling, Construction, Exterior uses, Flooring, Foundation posts, Furniture , Furniture components, Furniture squares or stock, Joists, Lumber, Poles, Posts, Sheathing
Environment profile: Vulnerable in parts of its habitat and may soon become Endangered if current trends of over-exploitation and habitat destruction persist
Colors: the heart isBrown, Redand the sapwoodClearly differentiated from the heartwood, White.The grain isFigure, the textureMedium
Natural durability: Moderately resistant to decay, Resistant to termites
Odor: No specific smell or taste
Drying Defects:
Checking is slight, but the wood has a tendency to warp if not carefully seasoned
Ease of Drying: Thick Stock Requires Care
Comments: Kamatog is described as a moderately heavy and moderately hard timber.
Blunting Effect: Moderate
Boring: Poor to very poor results
Carving: Fairly Difficult to Very Difficult
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Mortising: Poor to Very Poor
Moulding: Fairly Difficult to Very Difficult
Movement in Service: Fairly Difficult to Very Difficult
Nailing: Fair to Good , Fairly Difficult to Very Difficult
Planing: Poor to Very Poor
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds well
Routing recessing: Poor to Very Poor Results
Sanding: Poor to Very Poor Results
Screwing: Fair to Good Results, Fairly Difficult to Very Difficult; Turning: Poor to Very Poor Results
- 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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kg/m3 |
Bending Strength |
726 |
1249 |
kg/cm2 |
Crushing Strength |
81 |
109 |
kg/cm2 |
Hardness |
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861 |
kg |
Impact Strength |
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cm |
Shearing Strength |
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143 |
kg/cm2 |
Stiffness |
125 |
160 |
1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
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% |
Weight |
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kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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552 |
cm-kg |
Static Bending |
409 |
700 |
kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 10339 | 17771 | psi | Crushing Strength | 1156 | 1562 | psi | Hardness | | 1900 | lbs | Maximum Crushing Strength | 4920 | 8485 | psi | Shearing Strength | | 2042 | psi | Static Bending | 5826 | 9966 | psi | Stiffness | 1784 | 2282 | 1000 psi | Toughness | | 480 | inch-lbs | Specific Gravity | 0.62 | 0.68 | | |
Lauricio, F. M., Bellosillo, S. B., The Mechanical and Related Properties of Philippine Woods, The Philippine Lumber Journal, 12(5): A-H.Schneider, E.E. 1916. Commercial Woods of the Philippines: Their Preparation and Uses. Bulletin No. 14. Department of the Interior, Bureau of Forestry, Manila, Philippines.
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