KELEDANG (Artocarpus rigidus)
Trade Name
Keledang
Scientific Name
Artocarpus rigidus Blume
Family
MORACEAE
Common Names
Tempuni (Indonesia); Peing (Myanmar); Cay mit nai (Vietnam); Khanun pa (Thailand); Kundang (Indonesia); Sone padat (Myanmar); Taung (Myanmar); Pala musoh (Sarawak); Temponek (Malaysia); Nangka pipit (Malaysia); Purian (Sumatra); Knor prey (Cambodia); Purian (Indonesia)
Description Of The Tree
Botanical Description
It is a medium-sized to large evergreen tree up to 45 m tall. The bole is up to 115 cm in diameter. The buttresses are short or up to 3 m high.
Natural Habitat
It can be found in evergreen forests on well drained level and hilly locations, up to 900 m of altitude.
Plantations Available?
This species is widely planted in Indonesia for its fruits.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Tangential diameter of vessel lumina 200 micras or more (large). Colored deposits in heartwood vessels. Vessels per mm2 less than 6 (rare). Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Axial parenchyma aliform. Axial parenchyma confluent. 4 to 10 rays per mm (medium). Larger rays more than 4 seriate. Sheath cells. Oil and/or mucilage cells associated with the axial and/or ray parenchyma (idioblasts). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kri Septate fibers present. Fibers with distinctly bordered pits.
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Wood Macro Photo Tangential Plane
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Wood Micro Photo Of Transversal Section
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is orange yellowish-brown, sometimes with an olive-green tinge, generally darkening considerably on exposure and usually well defined from the paler sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is often deeply interlocked.
Texture
The texture is moderately coarse.
Natural Durability
The wood is non-durable to moderately durable, somewhat resistant to termite attack. It is susceptible to powder-post beetle attack.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Internal Growth Stresses
Timber of this species presents residual stresses.
Resistance To Impregnation
The heartwood is untreatable. The sapwood of keledang is reported to absorb preservatives readily.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.56
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.61
Total shrinkage Tangential (Saturated to 0%MC) (%)
6.1
Total shrinkage Radial (Saturated to 0%MC) (%)
2.3
Recommended Dry Kiln Schedule
JP-25; UK-F
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.7
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
535
Stiffness (MOE) 12%MC (kgf/cm²)
124573
Compression parallel to fiber 12%MC (kgf/cm²)
484
Shear strength radial 12%MC (kgf/cm²)
107
Janka hardness (side) 12%MC (kgf)
507
Janka hardness (end grain) 12%MC (kgf)
589
Workability
Sawing
Sawing of this species is reported to be rather difficult.
Machining
Interlocked grain causes problems, special cutters are required.
Turning
30
Nailing
This species is reported to have a good nailing behavior.
Gluing
Gluing behavior is reportedly good.
Finishing
Often rough surfaces are reported.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, bridges, poles, HOUSING GENERAL, beams, flooring, FURNITURE AND CABINETS, PLYWOOD AND VENEER, TURNING, TOOLS, tool handles, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS, coffin
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)
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Flooring
- 14 - Handbook of Hardwoods
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
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)
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Other & Musical Instruments
- 63 - Madeiras do Brazil II
Coffin
- 78 - Amazonian Timbers for the International Market
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