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Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Luster
Movement in Service
Natural Durability
Numerical Data
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Texture
Trade Name
Tree Size
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Common Names
New Guinea Sterculia
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Indonesia, Malaysia, Philippines
Common Uses
Blinds, Boxes and crates, Building materials, Core Stock, Decorative veneer, Figured veneer, Interior construction, Interior trim, Millwork, Moldings, Packing cases, Paneling , Plain veneer, Shutters, Sills, Trimming, Veneer, Wainscotting, Windows
Environmental Profile
| Status has not been officially assessed |
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Distribution Overview
Several species in the genus Sterculia are distributed in the Malay Peninsula, Philippines, and other areas in southeast Asia.
Heartwood Color
| Yellow |
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| Brown |
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| Orange |
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| Red |
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| Green/grey |
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| White to cream |
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| Material is discolored to a silver gray or light brown when stained |
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| Light brown |
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Sapwood Color
| White |
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| Yellow |
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| Brown |
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| Red |
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| Same as heartwood |
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Grain
Texture
| Fine |
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| Spongy heart may be present. |
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| Coarse |
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Luster
Natural Durability
| Durable |
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| Very durable |
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| Susceptible to insect attack |
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| Resistant to powder post beetles |
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| Heatwood deteriorates rapidly in contact with ground |
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| Heartwoood susceptible to beetle attack |
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Drying Defects
Ease of Drying
| Stains easily |
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| Despite staining, timber seasons well |
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Tree Size
| Trunk diameter is 100-150 cm |
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| Tree height is 20-30 m |
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| Sapwood width is 0-5 cm |
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| Bark width is 10-15 mm |
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Comments
Leight weight, poor quality, suitable on for low-grade uses
Cutting Resistance
| Easy to saw |
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| Material is very soft and saws easily |
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Movement in Service
| Excellent Stability - Small Movement |
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Planing
| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Fair to Good Results |
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Resistance to Impregnation
| Resistant heartwood |
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| Resistant sapwood |
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Response to Hand Tools
| Easy to Work |
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| Easy to machine |
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| Clean surfaces are difficult to obtain |
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Polishing
| Poor to Very Poor Results |
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Strength Properties
| Resistance to denting and marring is low |
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| Hardness (side grain) = soft |
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| Density = low |
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| Compression strength (parallel to grain) = low |
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| Bending strength (MOR) = low |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 3822 | 4577 | psi |
| Density | | 18 | lbs/ft3 |
| Hardness | | 245 | lbs |
| Maximum Crushing Strength | 1970 | 2969 | psi |
| Shearing Strength | | 582 | psi |
| Static Bending | 2548 | 3685 | psi |
| Stiffness | 768 | 849 | 1000 psi |
| Toughness | | 44 | inch-lbs |
| Specific Gravity | 0.25 | 0.26 | |
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| Item | Green | Dry | Metric |
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| Bending Strength | 268 | 321 | kg/cm2 |
| Density | | 288 | kg/m3 |
| Hardness | | 111 | kg |
| Maximum Crushing Strength | 138 | 208 | kg/cm2 |
| Shearing Strength | | 40 | kg/cm2 |
| Static Bending | 179 | 259 | kg/cm2 |
| Stiffness | 53 | 59 | 1000 kg/cm2 |
| Toughness | | 50 | cm-kg |
References
Bolza, E. and N. H. Kloot. 1966. The Mechanical Properties of 81 New Guinea Timbers. Technological Paper No. 41. Division of Forest Products, Commonwealth Scientific and Industrial Research Organization, Melbourne, Australia.
Desch, H. E. 1954. Manual of Malayan Timbers - Volume II. Malayan Forest Records, No. 15. Malaysia Publishing House Ltd., Singapore.
Eddowes, P. J. 1961. Commercial Timbers of Papua New Guinea:Their Properties and Uses. Office of Forests, Papua New Guinea
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.
WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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