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TEMPINIS (Streblus elongatus)
Trade Name
Tempinis
Scientific Name
Streblus elongatus (Miq.) Corner
Family
MORACEAE
Common Names
Tempinis (Indonesia); Tampinis (Indonesia); Kamaria (Indonesia); Tempinis (Malaysia)
Scientific Name Synonyms
Sloetia wallichii King; Sloetia sideroxylon Teijsm. & Binnend.; Sloetia pinangeana Oliv.
Description Of The Tree
Botanical Description
It is a small to medium sized tree, up to 30 m tall. The bole does not present buttresses, but it is often irregular and fluted, with a diameter of 60 cm, branchless for 15 m.
Natural Habitat
Streblus elongatus occurs scattered in lowland forests and in open vegetation.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Occasionally vessel clusters common. Occasionally tangential diameter of vessel lumina 100 micras or less. Colored deposits in heartwood vessels. Tyloses common. Vessels per mm2 more than 20 (very abundant). Simple perforation plates. Interv Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. Two cells per parenchyma strand. 3 to 4 cells per parenchyma strand. Occasion 4 to 10 rays per mm (medium). Prismatic crystals in the ray cells. Occasionally body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body ray cells procumbent with one row of upright and/or square marginal cel Fibers very thick walled. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
It has distinct odor when freshly cut.
Color
The heartwood varies from yellow to yellowish-red or brownish-red, darkening to dark chocolate-brown upon exposure, distinctly demarcated from the white to pale yellow-brown sapwood.
Grain
The grain is interlocked, occasionally straight.
Texture
The texture is fine to moderately fine.
Natural Durability
The timber is very durable when exposed to the weather or in contact with the ground. It is also resistant to termite and to some extent to marine borer attack.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Resistance To Impregnation
It is very difficult to treat, but for most applications preservative treatments are not required.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.84
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.97
Total shrinkage Tangential (Saturated to 0%MC) (%)
4.5
Total shrinkage Radial (Saturated to 0%MC) (%)
3.6
Drying Defects
Ease of Drying: Drying is moderately difficult to difficult; special care is systematically needed. Drying Defects: Risks of checks. Kiln Schedules: The kiln schedule has been tested.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.3
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1498
Stiffness (MOE) 12%MC (kgf/cm²)
169765
Compression parallel to fiber 12%MC (kgf/cm²)
867
Compression perpendicular to fiber 12%MC (kgf/cm²)
158
Shear strength radial 12%MC (kgf/cm²)
186
Janka hardness (side) 12%MC (kgf)
1275
Janka hardness (end grain) 12%MC (kgf)
1482
Workability
Blunting Effect
It is reported to have a severe blunting effect on the cutting elements.
Machining
Machining of this species is fair to difficult.
Planing
Planing operations are rather difficult.
Moulding
Care must be taken in molding to avoid chipping at the exit of tools.
Turning
30
Boring
Care must be taken in drilling to avoid chipping at the exit of tools.
Mortising
Care must be taken in mortising to avoid chipping at the exit of tools.
Finishing
Wood of this species takes a good finish.
Polishing
It is easy to polish.
Response To Hand Tools
This species has a fair to poor response to hand tools.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, bridges, poles, crossties, HOUSING GENERAL, flooring, parquet, TURNING, TOOLS, tool handles, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boat oars, port pillar, port storage, OTHER AND MUSICAL INSTRUMENTS, axle, wheel
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Bridges
- 2 - 25 madeiras da amazonia de valor comercial, caracterizacao, macroscopica, usos comuns e indices qualificativos
Poles
- 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Turning
- 30 - Embassy of Honduras in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Truck Body
- 53 - Timbers of the New World
Truck Flooring
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boat Oars
- 60 - Amazonian Timbers, Characteristics and Utilization Volume II; Curuá-Una Experimental Forest Station
Port Pillar
- 61 - Manual de Diseño para Maderas del Grupo Andino
Port Storage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
Other & Musical Instruments
- 63 - Madeiras do Brazil II
Axles
- 73 - Handbook of Hardwoods
Wheels
- 75 - Tropenholzer
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