Cherek (Peronema canescens)
Family: Verbenaceae
Common names: Cherek, Jati sabrang, Koeroes, Kurus, Longkai, Lurus, Sekai, Sukai, Sungkai, Sungke, Sungkih, Sunkai
Distributed in: Indonesia, Malaysia (Oceania and S.E. Asia)
Common uses: Bridge construction, Cabinetmaking, Carvings, Flooring, Furniture, Heavy construction, Light construction, Paneling, Vehicle parts, Veneer: decorative
Tree size: Sapwood width is 0-5 cm
Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureMediumand the lusterMedium
Natural durability: Susceptible to insect attack, Very durable
Kiln Schedules: Drying (speed) is fast
Kiln Drying Rate: Naturally dries at a moderate speed
Ease of Drying: Slowly
Tree Identification: Bole/stem form is straight
Planing: Planes to a satisfactory finish
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Fairly Difficult to Difficult to Work
Sanding: Good sanding finish
Veneering qualities: Easy to cut, Good gluing qualities
Turning: Finish is generally satisfactory
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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kg/m3 |
Bending Strength |
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kg/cm2 |
Crushing Strength |
212 |
362 |
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 |
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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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cm-kg |
Static Bending |
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kg/cm2 |
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 |  |  |  | Item | Green | Dry | English | Maximum Crushing Strength | 3027 | 5157 | psi | Stiffness | 1188 | 1383 | 1000 psi | |
Modulus of Elasticity (stiffness) = very low Modulus of Elasticity (stiffness) = low Max. crushing strength = medium Max. crushing strength = low
Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Kartasujana, I., Martawijaya, A.,1973,Commercial Woods of Indonesia,Forest Products Research Institute, Department Pertanian, Bogor Indonesia,Report No.3Martawijaya, A., Kadir, K., Kartasujana, I.,1986,Indonesian Wood Atlas. Vol.1.,Department of Forestry Agency for Forestry Research and Development.,Bogar-IndonesiaNg, F.S.P.,1978,Tree Flora of Malaya A Manual for Foresters Volume 3,Forest Department Ministry of Primary Industries Malaysia
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